statistical summary of the chemical quality ...the green river coal region, wyoming by david a....
TRANSCRIPT
STATISTICAL SUMMARY OF THE CHEMICAL QUALITY OF SURFACE WATER
IN THE POWDER RIVER COAL BASIN, THE HANNA COAL FIELD, AND
THE GREEN RIVER COAL REGION, WYOMING
By David A. Peterson
U.S. GEOLOGICAL SURVEY
Water-Resources Investigations Report 84-4092
Cheyenne, Wyoming
1988
DEPARTMENT OF THE INTERIOR
DONALD PAUL HODEL, Secretary
UNITED STATES GEOLOGICAL SURVEY
Dallas L. Peck, Director
For additional information write to:
District Chief U.S. Geological Survey 2120 Capitol Avenue P.O. Box 1125 Cheyenne, WY 82003
Copies of this report can be purchased from:
U.S. Geological SurveyBooks and Open-File Reports SectionFederal Center, Bldg. 810Box 25425Denver, CO 80225-0425
CONTENTS
Page--------------------------------------------- ------------------ 1
Introduction---------------------- ------------------------------------- iPurpose and scope--------------------------------------------------- 3Description of study area------------------------------------------- 3
Landscape and climate------------------------------------------ 3Stream types------------------------------- ------------------ 3
Previous studies---------------------------------------------------- 4Methods of data analysis--------------------- -------------------------- 4
Data distribution--------------------------------------------------- 5Descriptive statistics-------------------------- ------------------ 5Regression analyses------------------------------------------------- 5
Prediction of constituent values--------- ------------------------------ 7Statistical summary------------------------------------------------------ 7
Station location and numbering system------ ------------ _________ 7Powder River coal basin------ ------------------------------------- 7
Tongue River drainage---------------------------------------- 8Powder River drainage------------ ---------------------------- 9Little Powder River drainage--------------- ------------------ 12Cheyenne River drainage---------------------------------------- 12Belle Fourche River drainage------------------------ --------- 14North Platte River drainage---------------- ------------------ 16
Hanna coal field---------------------------------------------------- 16Green River coal region--------------------------------------------- 18
Green River main stem and upstream tributaries----------- ---- 18Big Sandy River drainage--------------------------------------- 20Bitter Creek and Vermillion Creek drainages-------------------- 21Blacks Fork and Henrys Fork drainages------------------------ 22Great Divide drainage basin------------------------------------ 24Little Snake River drainage---------------- ---------------- 24
Need for future sampling programs---------------------------------------- 24Summary------------------------------------------------------------------ 24Selected references--------------- ------------------------------------- 25Supplemental data----------------- ---------------- ___-__-_______-__-_ 27
PLATE
Plate 1. Map showing dissolved-solids concentrations and proportions of major ions in streams in and near the Powder River coal basin, the Hanna coal field, and the Green River coal region, Wyoming----------------------------------- In pocket
FIGURES
Page Figure 1. Map showing principal areas of coal production in Wyoming----- 2
111
Figures 2-11 Graphs showing mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the:
2.3.4.5.6.7.8.9.
10.11.
Tongue River drainage ------- --._______----.Powder River drainage--------------------------Little Powder River drainage-------------------Cheyenne River drainage------------------ --- Belle Fourche River drainage----------- ------Hanna coal field- ----------------------------Green River main stem and upstream tributaries- Big Sandy River drainage-------------- -------Bitter Creek and Vermillion Creek drainages----Blacks Fork and Henrys Fork drainages---- ---
Page
9111313151719202123
TABLES
Table 1. Statistical summaries of water-quality data from the PowderRiver coal basin, based on samples collected from October 1, 1974, to September 30, 1981
2. Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981
3. Statistical summaries of water-quality data from the GreenRiver coal region, based on samples collected from October 1, 1974, to September 30, 1981 -
Page
28
67
71
CONVERSION FACTORS
For the use of readers who prefer to use metric units rather than the inch-pound terms used in this report, the following conversion factors may be used:
Multiply inch-pound unit
inchcubic foot per second (ft3/s)square mileton, short
By
25.400.028322.590.9072
To obtain metric unit
millimetercubic meter per secondsquare kilometermegagram
Temperature in degree Celsius (°C) can be converted to degree Fahrenheit (°F) as follows:
°F = 1.8 x °c + 32
IV
STATISTICAL SUMMARY OF THE CHEMICAL QUALITY OF SURFACE WATER IN THE POWDER RIVER COAL BASIN, THE HANNA COAL FIELD, AND THE
GREEN RIVER COAL REGION, WYOMING
By David A. Peterson
ABSTRACT
Sampling of the chemical quality of surface water in the three principal coal-producing areas of Wyoming was intensified by the U.S. Geological Survey during 1975-81, in response to interest spurred by a dramatic increase in surface mining of the areas. This statistical summary consists of descriptive statistics and regression analyses of data from 72 stations on streams in the Powder River coal basin, the Hanna coal field, and the Green River coal region of Wyoming. Constituents described include dissolved solids, major ions, nutrients, bacteria, trace elements, suspended sediment, turbidity, and other miscellaneous constituents.
The mean dissolved-solids concentrations in streams ranged from 15 to 4,800 milligrams per liter. Samples collected near mountainous areas or in the upstream reaches of perennial streams in the plains had the smallest concentrations of dissolved solids, and the predominant ions were calcium and bicarbonate. Samples from ephemeral, intermittent, and the downstream reaches of perennial streams in the plains contained relatively large dissolved-solids concentrations, and the predominant ions usually were sodium and sulfate. Regression models showed that the concentrations of dissolved solids, calcium, magnesium, sodium, alkalinity, sulfate, and chloride correlated well with specific-conductance values in many of the streams.
INTRODUCTION
The collection and analysis of hydrologic information in Wyoming was expanded greatly during 1975-81, in response to the sudden increase in the surface mining of coal. Funding for much of the intensified data-collection activity was provided by the U.S. Geological Survey Coal Hydrology Program and the U.S. Bureau of Land Management Energy Mineral Resource Inventory and Analysis (EMRIA) Program.
The data-collection efforts focused on the three principal coal-producing areas of Wyoming: the Powder River coal basin, the Hanna coal field, and the Green River coal region (fig. 1). Data from several stations located outside these areas are included in this report, because of the importance of the stations in evaluating the water quality of the areas.
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Wyoming coal production during 1981 from the Powder River coal basin was approximately 78 million short tons, from the Hanna coal field approximately 8 million short tons, and from the Green River coal region approximately 11 million short tons (Wyoming State Inspector of Mines, 1982). Locations of active or planned mines and their annual production rates are shown by Hausel and others (1979).
Purpose and Scope
The purpose of this report is twofold: (1) To summarize statistically the surface-water-quality data collected by the Geological Survey in the Powder River coal basin, the Hanna coal field, and the Green River coal region and, (2) to evaluate the adequacy of the water-quality data and to evaluate the need for future water-quality data-collection activities in the coal areas of Wyoming.
The statistical summary consists of descriptive statistics and regression analyses of data from samples collected at 72 stations. The samples were collected using methods described by Skougstad and others (1979), Greeson and others (1977), and Guy and Norman (1970). Brief overviews of water-quality conditions in each of the three coal areas also are included.
Description of Study Area
Landscape and Climate
A high-plains topography characterizes the study areas. The low, rolling hills are vegetated with sagebrush and grasses. Trees generally are absent, although cottonwoods grow along some stream channels, and evergreens sometimes grow on breaks and upland areas.
The average annual precipitation in the semiarid climate of the study areas is 5 to 20 inches. Spring and summer thunderstorms contribute much of the precipitation; winter and spring snowstorms provide the remainder of the precipitation.
Stream Types
Perennial, intermittent, and ephemeral streams are present throughout the study areas. The perennial streams flow year-round, in response to precipita tion runoff, snowmelt, and ground-water inflow. Many of the perennial streams in the study areas originate in nearby mountain ranges, and flows are sus tained by meltwater from the mountain snowpack. Some streams originating in the study areas (plains) are perennial for a short distance because they are sustained by perennial springs, but streamflow losses cause them to become intermittent or ephemeral. Streams originating in the study areas typically are intermittent or ephemeral. Intermittent streams receive ground-water inflow in addition to precipitation runoff, but usually cease flowing during part of the year. Ephemeral streams flow only in response to precipitation.
Previous Studies
Several investigators have studied surface-water quality in the Powder River Basin of Wyoming and Montana. Small concentrations of dissolved solids and predominance of calcium and bicarbonate in mountainous tributaries to the Powder River, and a relatively large dissolved-solids concentration and predominance of sodium and sulfate in the main stem of the Powder River were noted by Hembree and others (1952, p. 49-51). Predominance of sodium and sulfate during baseflow conditions in streams of the plains in the Montana part of the Powder River coal basin was noted by Knapton and Ferreira (1980, p. 11). Relatively large concentrations of dissolved solids and small concen trations of suspended sediment during baseflow conditions, compared to small dissolved-solids and large suspended-sediment concentrations during large flows were also noted by Hembree and others (1952, p. 24-51) and Knapton and Ferreira (1980, p. 7-9).
The water quality at stations in and near the Powder River and Hanna coal areas during 1968-75 was described by Rucker and Belong (1987) in their study of stations throughout Wyoming, excluding the Green River basin. A report listing surface- and ground-water-quality data from the Hanna area also is available (Freudenthal, 1979).
In recent years the water quality of streams in the Green River Basin in Wyoming has been studied as part of the Geological Survey's energy-related hydrologic investigations. Multivariable regression models of dissolved- solids concentrations and loads versus streamflow in several streams of the Green River basin during 1961-75 were described by Belong (1977); inclusion of a simple harmonic time function in the models to account for seasonal effects also is described. The flushing action of flow on accumulated salts in the seasonally dry channel of an intermittent stream in the Great Bivide basin was described by Larson and Zimmerman (1981, p. 34-38). Flushing of salts and organic debris in an intermittent stream in the Green River basin also was noted by Lowham and others (1982, p. 24-36).
METHOBS OF BATA ANALYSIS
The water-quality data used in this report are from samples collected during water years 1975-81 (October 1, 1974 to September 30, 1981). Water- quality samples collected before water year 1975 are not included in this study, in order to compare samples for a consistent period. The data have been published in annual reports (U.S. Geological Survey, 1976-82). The descriptive statistics and regression relations listed in tables 1, 2, and 3 (at the end of this report) were generated using computer programs developed by the SAS Institute, Inc. 1 (1982).
1 The use of brand names in this report is for identification purposes only and does not imply endorsement by the U.S. Geological Survey.
Several cations and anions are collectively referred to in this report as the major ions because they comprise a majority of the dissolved solids found in water. The major ions include the following: calcium, magnesium, sodium, alkalinity, sulfate, and chloride. Alkalinity is included as an anion because it represents the bicarbonate and carbonate ions. The streamflow values used throughout this report are the instantaneous values at the time of sampling.
Data Distribution
The data were found to be normally distributed, with the following excep tions: streamflow, suspended-sediment, turbidity, bacteria, and phytoplankton data tended to be lognormally distributed. These parameters are distinguished by large variations and potential for extreme values. The distribution was tested through interpretation of plots of data on probability paper, plots of regression residuals, and comparison of skewness values. Distribution of the sample data also was given a simplified test by comparing two measures of central tendency, the mean and the median. The mean was greatly different from the median in a lognormal distribution, but nearly equal in a normal distribution. For the purposes of discussion, the median is used as the measure of central tendency of the streamflow, suspended-sediment, turbidity, bacteria, and phytoplankton sample values. Use of the median, instead of the mean, decreases the effects of extreme values in choosing a representative value for the sample values.
Descriptive Statistics
The descriptive statistics, which are included in tables 1, 2, and 3, in the "Supplemental Data" section at the end of the report, provide an overview of the data from each station. The descriptive statistics consist of sample size, maximum, minimum, mean, standard deviation, median, and percentile values.
All descriptive statistics are listed when the sample size of the con stituent is 10 or greater. Only sample size, maximum, and minimum values are listed for constituents with sample size of one to nine. If samples were not analyzed for a constituent, that constituent is not listed for that station. The constituent pH is an exception to the above. The mean, standard devia tion, and regression statistics, which are arithmetic calculations, are not listed for pH. Arithmetic calculations involving pH values can be misleading because pH is a logarithmic function of the hydrogen-ion concentration.
Regression Analyses
The regression analyses, which are obtained from regression models, meas ure correlation between variables in the data sets. The regression analyses are included in tables 1, 2, and 3.
The regression analyses are not listed for constituents with a sample size less than 10. The sample size for a constituent in the regression analyses and the sample size for the same constituent in the descriptive statistics are listed separately in the tables, because the sample sizes may be unequal. Paired values of the constituent and the dependent variables are required to compute the regression models, but unpaired values are included in the descriptive statistics.
The regression models are based on a least squares line, which is described by an equation of the form:
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Y = a + bx (1)^
where Y = predicted value of dependent variable (constituent); a = the regression constant; b = the regression coefficient; x = the independent variable [specific conductance (K),
streamflow (Q), or the logarithm of streamflow (LOGQ)].
Each constituent was regressed against the three independent variables (three two-variable models); only the independent variable that explained the great est degree of variation in the constituent is included in this report. The logarithm of streamflow was included as an independent variable in addition to specific conductance and streamflow, because of the tendency for streamflow data to be lognormally distributed.
Values of the r 2 (coefficient of determination), significance probability of the F value, and the standard error of estimate are given to help the reader assess the fit of the data about the lines described by the regression equations. The r 2 value is the square of the correlation coefficient, which is a measure of the linear correlation between the dependent and independent variables. The r 2 values can range from 0.00 to 1.00. A value of 0.00 indicates no correlation; a value of 1.00 indicates perfect correlation. For example, an r 2 value of 0.80 indicates that 80 percent of the variation of the constituent can be explained by variation in the independent variable.
Values of the significance probability of F are based on an F-test where F equals the ratio of the regression mean square to the error mean square. Values of the significance probability range from 0.0001 to 0.8 in this report. A value of 0.05, for example, indicates a 5-percent probability of no valid relationship between the dependent and independent variables.
The standard error of estimate is the square root of the mean square error. The standard error of estimate represents the standard deviation of the sample values from the line described by the regression equation. The range of value of the standard error of estimate is not fixed; the value is expressed in the same units as the constituent. Readers may wish to consult Mendenhall (1979) or Riggs (1968) for more information on regression statistics.
The results of the regression models were evaluated through two arbitrar ily chosen criteria: an r 2 value larger than 0.50, and a significance proba bility of the F value smaller than 0.05. If the model met the criteria, all of the regression statistics are included in the tables. If the model did not meet the criteria, a decreased set of regression statistics (sample size, r 2 , and significance probability of the F value) is listed to give the reader some information about the constituent's relation to the independent variable.
Regression models of dissolved oxygen, biochemical oxygen demand, nitro gen compounds, phosphorus, flouride, silica, boron, bacteria, and phytoplank- ton versus the independent variables were computed, but are not listed in this report because they generally showed poor correlations. Multiple regressions, utilizing two or three independent variables concurrently were tested, but are not listed because they generally resulted in little improvement compared to the single independent-variable models.
PREDICTION OF CONSTITUENT VALUES
The regression equation can be used to predict values of a constituent, resulting in cost savings through a decreased or more efficient sampling schedule. Predictions are calculated by multiplying the regression coeffi cient by a user-chosen value of the independent variable, and adding the regression constant. The r 2 value, the significance probability of the F value, and the standard error of estimate help to define the reliability of the equation for predictive use, but other limitations also apply. Predic tions of constituent values near the smallest or largest values of the data set can be misleading; predictions are not accurate if they are calculated for values outside the range of the data set. Predictions made from regression models based on a small number of samples may be particularly susceptible to error, because a small number of samples may not be typical of the long-term condition.
STATISTICAL SUMMARY
Station Location and Numbering System
The location of the stations where samples were collected is shown on plate 1. Each station is identified by an eight-digit station identification number, assigned by the U.S. Geological Survey to surface-water stations, in downstream order. The first two of the eight digits indicate the major drainage basin in which the site is located. For example, the Missouri River drainage basin is 06. The remaining six digits indicate position within the basin; the numbers are progressively larger in the downstream direction.
Powder River Coal Basin
A change in the proportions of ions in the downstream direction was noted in many streams in the Powder River coal basin. Calcium and bicarbonate comprise a large proportion of the total milliequivalents per liter in the upstream reaches of the streams, whereas sodium and sulfate comprise a large
proportion in the downstream reaches (pi. 1). This trend, as well as an increase in the dissolved-solids concentration in the downstream direction in streams draining the Bighorn Mountains, is described in more detail in the following sections. Changes in water quality in the downstream direction are due in part to increased availability of fine particles for transport and dissolution, and irrigation practices.
The descriptive statistics and regression analyses of data from 33 sta tions in the Powder River coal basin are listed in table 1. The relative con centration of dissolved solids and proportion by milliequivalents of calcium, magnesium, sodium plus potassium, bicarbonate, sulfate, and chloride at each station are shown on plate 1.
Tongue River Drainage
Water-quality data from three stations on the main stem of the Tongue River and two stations on tributaries are included in table 1. Perennial streamflow at these stations is derived from snowmelt in the Bighorn Mountains.
Dissolved-solids concentrations in the Tongue River drainage are some of the smallest concentrations in the Powder River coal basin (pi. 1). An increase in the mean dissolved-solids concentration in the downstream direc tion from station 06298000 to station 06306300 in the Tongue River is shown in figure 2. The median instantaneous streamflow in the Tongue River also increased in the downstream direction (fig. 2).
The predominant ions were calcium and bicarbonate in the Tongue River at stations 06298000, 06299980, and 06306300, and in Goose Creek at station 06305500. The proportions of sulfate and sodium by milliequivalents increased in the downstream direction in the Tongue River, but were not predominant. The sodium-adsorption ratio in the water of the Tongue River increased from a mean value of 0.19 at station 06298000 to a mean value of 0.80 at station 06306300.
Goose Creek, the largest tributary to the Tongue River in the study area, had median streamflow of 96.0 ft 3 /s at station 06305500. The median fecal coliform bacteria count of 31,000 cols/100 mL (colonies per 100 milliliters of water) in Goose Creek at station 06305500 is assumed to be a result of muni cipal-sewage effluent discharged to Goose Creek. The phosphorus and organic nitrogen concentrations in Goose Creek at station 06305500 also were greater than at the stations on the Tongue River, probably due to the sewage effluent.
Suspended-sediment data are summarized for two stations in the Tongue River drainage; the median concentration was 22.0 mg/L (milligrams per liter) in Goose Creek at station 06305500 and 46.5 mg/L in the Tongue River at station 06306300. Turbidity values were small at stations in the Tongue River drainage, compared to median values from other drainages in the Powder River coal basin. The largest median turbidity value in the drainage was 10.0 NTU (nephelometric turbidity units), in the Tongue River at station 06306300.
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Regression equations relating specific conductance to streamflow or the logarithm of streamflow are presented for all stations in the Tongue River drainage. Regression equations relating dissolved solids and the major ions to specific conductance are presented for stations 06299980 and 06306300 on the Tongue River and 06305500 on Goose Creek.
Powder River Drainage
Streams in the Powder River drainage may be divided into two categories, mountains and plains, based on the dissolved-solids concentration and chemical composition of their waters. Streams in the mountain category have relatively small concentrations of dissolved solids, suspended sediment, and turbidity; the predominant cation was calcium and the predominant anion was either bicarbonate or sulfate. Streams in the plains category have relatively large concentrations of dissolved solids, suspended sediment, and turbidity; the predominant cation was sodium and the predominant anion is either sulfate or
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Streams in the mountain category are perennial streams originating in the Bighorn Mountains. The mean concentration of dissolved solids increased in the downstream direction in Clear Creek, from 541 mg/L at station 06320200, to 712 mg/L at station 06320400, and to 826 mg/L at station 06324000 (fig. 3). Piney Creek, at station 06323500, near the headwaters, had a mean dissolved- solids concentration of 379 mg/L. Stations 06312500 on the Powder River and 06316400 on Crazy Woman Creek, which are not as near to their respective head waters as the station on Piney Creek, had mean dissolved-solids concentrations of about 1,000 mg/L.
Calcium was the predominant cation at the stations on streams in the mountain category. Sulfate was the predominant anion in these streams, with one exception. The milliequivalent concentrations of sulfate and bicarbonate were approximately equal in Piney Creek at station 06323500.
Suspended-sediment and turbidity concentrations are small in streams in the mountain category. The median suspended-sediment concentration increased in the downstream direction in Clear Creek from 14.0 mg/L at station 06320200 to 56.0 mg/L at station 06324000. Turbidity also increased in the downstream direction. The increases were at least partly due to increased availability of fine particulates for transport.
Regression equations relating specific conductance to the logarithm of streamflow are presented for each station in the mountain category, with the exception of station 06323500 on Piney Creek. Regression equations relating dissolved solids and the major ions to specific conductance are presented for all the stations.
The plains-stream category includes three stations on the main stem of the Powder River and two stations on tributaries. The mean dissolved-solids concentrations and median values of streamflow at the time of sampling at these stations are included in figure 3. The largest mean dissolved-solids concentrations of streams in the plains category were 2,929 mg/L in the South Fork Powder River at station 06313000 and 4,074 mg/L in Salt Creek at station 06313400. The latter was the largest concentration recorded in the Powder River coal basin. The dissolved-solids concentrations of the South Fork Powder River at station 06313000 and Salt Creek at station 06313400 are diluted by flow in the main stem of the Powder River. Consequently, the mean dissolved-solids concentration was 2,062 mg/L in the Powder River at station 06313500, which is downstream from the mouth of the two tributaries. The mean dissolved-solids concentration of the Powder River decreased from 1,968 mg/L at station 06317000 to 1,422 mg/L at station 06324500, because of dilution by tributaries.
Sodium was the predominant cation at stations in the plains category. Sulfate was the predominant anion in the streams, with one exception. The predominant anion in Salt Creek at station 06313400 was chloride, possibly due to pumpage of oilfield brines into Salt Creek or its tributaries. The mean chloride concentration is 1,133 mg/L in Salt Creek at station 06313400. Con sequently, the presence of chloride as a large but not predominant proportion of the anions in the Powder River at station 06313500 is a result of the chloride concentrations from Salt Creek. The chloride concentrations farther downstream on the main stem of the Powder River at stations 06317000 and
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06324500 still reflected the chloride concentrations from Salt Creek, but the concentrations were smaller, because of dilution by tributaries. The decreas ing proportions of chloride in the downstream direction along the Powder River can be seen on plate 1.
Of the streams in the plains category, the largest median suspended- sediment concentration was 6,050 mg/L, and the largest median turbidity value was 500 NTU, both recorded in the Powder River at station 06317000. The smallest median suspended-sediment concentration was 715 mg/L, in Salt Creek at station 06313400, whereas the smallest median turbidity value was 60 NTU, in the South Fork Powder River at station 06313000.
Regression equations relating specific conductance to streamflow are pre sented for two of the five stations in the plains category, stations 06313500 and 06317000 on the Powder River. Regression equations relating dissolved solids and some of the major ions to specific conductance are listed for all five stations.
Little Powder River Drainage
Water-quality data from three stations along the Little Powder River are included in the summary. Streamflow is intermittent at the stations. The mean dissolved-solids concentrations of 2,370 mg/L in the water at the upstream station (06324890) and 2,330 mg/L at the intermediate station (06324925) were slightly greater than the mean concentration of 2,150 mg/L at the station farthest downstream (06324970). The decrease in dissolved solids in the downstream direction may have been related to a corresponding increase in the quantity of streamflow (fig. 4). The predominant cation in the Little Powder River was calcium at station 06324890 and sodium at stations 06324925 and 06324970; the predominant anion was sulfate at all three stations. The median suspended-sediment concentration at the three stations ranged from 48.5 to 166 mg/L.
Regression equations, relating specific conductance to streamflow, and relating dissolved solids and most of the major ions to specific conductance, from the stations on the Little Powder River are included in table 1.
Cheyenne River Drainage
Many of the streams of the Cheyenne River drainage are ephemeral or intermittent. Zero-flow conditions were recorded on at least one sampling date at six of the seven stations in this drainage.
The mean dissolved-solids concentrations in streams of the Cheyenne River drainage, shown in figure 5, ranged from 1,380 to 2,540 mg/L. The largest mean dissolved-solids concentrations were recorded at the two stations far thest downstream. Calcium was the predominant cation in the water of Antelope Creek at station 06364700, the Dry Fork Cheyenne River at station 06365300, and the main stem of the Cheyenne River at station 06365900. Sodium was the predominant cation in Little Thunder Creek at station 06375600, Lodgepole Creek at station 06378300, Lance Creek at station 06386000, and the Cheyenne
12
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Figure 4. Mean dissolved-solids concentrations and median instantaneous streamflow
values at stations in the Little Powder River drainage.
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FigMre 5. Mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the Cheyenne River drainage.
13
River at station 06386500. The increase in the proportion of sodium with increasing distance from the headwaters was similar to the pattern observed in the Tongue River, Powder River, and Little Powder River drainages (pi. 1). Sulfate was the predominant anion at all stations in the Cheyenne River drain age. A downstream trend in the proportion of sulfate to the other anions was not noted in this drainage area.
The median suspended-sediment concentrations in the streams of the Cheyenne River drainage ranged from 56 to 148 mg/L. The turbidity data were insufficient for comparison. The largest mean water temperature recorded in the drainage area was 14.9°C in the Cheyenne River at station 06386500, whereas the largest maximum water temperature was 35.0°C, in Lance Creek at station 06386000.
Regression equations relating specific conductance to streamflow are pre sented for two of the seven stations in the drainage area. The poor correla tion shown between the two variables may have been due in part to the small volume of streamflow at these stations. Regression equations relating dis solved solids and most or all of the major ions to specific conductance are presented for five of the seven stations.
Belle Fourche River Drainage
Water-quality data from three stations on the main stem of the Belle Fourche River, and two stations on tributaries are included in table 1. The streams are ephemeral or intermittent at all five stations.
The mean dissolved-solids concentrations and median streamflow values recorded at stations in the Belle Fourche River drainage are shown in figure 6. Stations 06425720 and 06425780 on the Belle Fourche River are a relatively short distance apart. The decrease in dissolved-solids concentra tions and small increase in streamflow between them may have been due to ground-water inflow, tributary inflow from Coal Creek, the rerouting of the channel around a coal surface mine or infrequent pumpage from the mine. The mean dissolved-solids concentration in the Belle Fourche River decreased to 1,760 mg/L at station 06426500. The decrease in dissolved-solids concentra tion and increase in streamflow in the downstream direction in the Belle Fourche River was similar to the pattern observed in the Powder and Little Powder Rivers.
The two tributaries, Caballo Creek (station 06425900) and Donkey Creek (station 06426400), might be expected to contain similar water-quality condi tions because their drainages are approximately the same size and adjacent to each other, but this was not the case, probably because of man's activities in the basin of Donkey Creek. Donkey Creek receives municipal sewage effluent from the city of Gillette (population 12,000), frequent pumpage from dewater- ing of a coal surface-mine pit, and water that flows through an oil-well field, all within a distance of less than 25 miles upstream from the sampling station. The mean dissolved-solids concentration in Caballo Creek at station 06425900 was 1,840 mg/L, compared to 2,890 mg/L in Donkey Creek at station 06426400. The fecal streptococci bacteria, phytoplankton, sodium, and chloride
14
concentrations were larger in Donkey Creek at station 06426400 than in unim- pacted streams in the area. Although the effects of Donkey Creek are diluted in the Belle Fourche River at station 06426500, downstream from their conflu-
chloride and phytoplankton concentrations were still relatively large.ence
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Figure 6.- -Mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the Belle Fourche River
drainage.
The predominant cation was sodium in the Belle Fourche River at stations 06425720 and 06426500 and in Donkey Creek at station 06426400. The predomi nance of sodium in the Belle Fourche River at station 06426500 probably reflected the trend of an increasing proportion of sodium in the downstream direction, as noted in other drainages, plus the effect of inflow from Donkey Creek. Sodium and calcium were present in approximately equal proportions in the Belle Fourche River at station 06425780 and Caballo Creek at station 06425900. The predominant anion was sulfate at all five stations.
15
The median suspended-sediment concentration in the Belle Fourche River increased from 61.0 mg/L at station 06425720 to 173 mg/L at station 06426500. The median turbidity values in the Belle Fourche River also increased in the downstream direction, from 7.0 NTU at station 06425720, to 40.0 NTU at station 06426500. The largest mean water temperature in the drainage was 12.7°C in the Belle Fourche River at station 06425720.
Regression equations relating specific conductance to streamflow are not presented for any of the stations in the drainage. Equations relating the dissolved solids and major ions to specific conductance are presented for most stations.
North Platte River Drainage
Water-quality data from stations 06645000 and 06646800 on the North Platte River are included in table 1. Perennial flow in the North Platte River at these stations is maintained by releases from three large reservoirs upstream on the main stem. Most of the water stored in the reservoirs originates in the mountain ranges of Wyoming and Colorado, which are the headwaters of the North Platte River.
The mean dissolved-solids concentration in the North Platte River was 429 mg/L at station 06645000 and 458 mg/L at station 06646800. The predomi nant ions at the stations were calcium and sulfate.
The regression models of the data from station 06645000 on the North Platte River showed poor correlations between the constituents and the independent variables. These correlations may have been poor, partly due to water-quality changes as a result of the standing-water conditions and the pattern of releases from the reservoirs upstream. Regression models were not calculated for station 06646800 because of an insufficient number of specific- conductance values.
Hanna Coal Field
Statistical summaries of water-quality data from four stations in or near the Hanna coal field are listed in table 2. Big Ditch at station 06630300 and Hanna Draw at station 06634990 are ephemeral streams. The Medicine Bow River at station 06635000 is perennial. These three streams, as well as the other streams in the area of active coal mining, drain into either the North Platte River or Seminoe Reservoir. The North Platte River is a relatively large, perennial river that flows through the western edge of the coal field, into Seminoe Reservoir. Although station 06630000 on the North Platte River is located outside the Hanna coal field, it is included in the summary because of its proximity to the coal field.
The mean dissolved-solids concentrations in the ephemeral streams (Big Ditch at station 06630300 and Hanna Draw at station 06634990) were about 2,000 mg/L; the mean dissolved-solids concentrations in the perennial streams (Medicine Bow River at station 06635000 and the North Platte River at station 06630000) were less than 1,000 mg/L (fig. 7). The predominant cation was
16
sodium in Big Ditch at station 06630300, and calcium in the Medicine Bow River at station 06635000 and the North Platte River at station 06630000. Calcium and magnesium were co-dominant cations in Hanna Draw at station 06634990. Sulfate was the predominant anion at the stations, excepting the predominance of bicarbonate at station 06630000 on the North Platte River. Differences in the quality of water between the stations may have been due to such factors as differences in the stream origins, agricultural practices, or mine drainage.
The largest median suspended-sediment concentration from the four stations was 1,510 mg/L, in Big Ditch at station 06630300. The largest mean water temperature was 17.0°C, also in Big Ditch at station 06630300.
Regression equations relating specific conductance to streamflow are presented for three stations. Equations relating dissolved solids and most or all of the major ions to specific conductance are presented for all four stations.
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Figure 7. Mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the Hanna coal field.
17
Green River Coal Region
Downstream trends in water quality in the Green River coal region include increasing dissolved-solids concentrations in the Green River and increasing proportions of sodium and sulfate in the Blacks Fork drainage. Irrigation of crops is extensive along the upper reaches of the Green River and its upper tributaries, the Big Sandy River, the Hams Fork, the Blacks Fork, the Smiths Fork, and the Henrys Fork. Inflows of saline water from underlying aquifers affect the water quality of the Big Sandy River and the Bitter Creek drainage.
The descriptive and regression statistics of data from 35 stations in the Green River coal region are listed in table 3. The range of the mean dissolved-solids concentrations and the proportion of the major ions at each station are shown on plate 1.
Green River Main Stem and Upstream Tributaries
Seven stations on the main stem of the Green River and five stations on the upper tributaries of the Green River are considered in this section. The five upper tributaries are Pine Creek (station 09196500), East Fork River (station 09203000), New Fork River (station 09205000), La Barge Creek (station 09208000), and Fontenelle Creek (station 09210500). The streamflow is peren nial at all of these stations.
The mean dissolved-solids concentration generally increased in the downstream direction on the Green River, but did not exceed 500 mg/L (fig. 8). Inflow of relatively saline water from the Big Sandy River contributed to the increase in the dissolved-solids concentration between stations 09211200 and 09216300 on the Green River. The mean dissolved-solids concentrations in the upstream tributaries ranged from 15 to 218 mg/L.
The predominant cation in the water was calcium at all of the stations along the Green River and upper tributaries. The predominant anion was sulfate in the Green River at the uppermost station (09188500) and the three stations farthest downstream (09216300, 09217000, and 09217010). Bicarbonate was the predominant anion in the Green River at station 09192600, 09209400, and 09211200, and in the tributary streams.
Suspended-sediment and turbidity concentrations were small in the Green River and the upper tributaries. The largest median suspended-sediment concentration in water at 11 stations is 27.0 mg/L, in the Green River at station 09217000. The largest median turbidity of all 12 stations was 8.0 NTU, in the Green River at station 09217010.
Regression equations relating specific conductance to streamflow are presented for 5 of the 12 stations on the Green River main stem and upstream tributaries. Equations relating dissolved solids and some of the major ions to specific conductance are presented for most stations.
18
61
COc
MEAN DISSOLVED-SOLIDS
CONCENTRATION, IN MILLIGRAMS PER LITER
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STREAMFLOW, IN CUBIC FEET PER SECOND
Big Sandy River Drainage
Water-quality-data summaries from three stations on the Big Sandy River and one station on a tributary are included in table 3. Streamflow is peren nial at the stations. The mean dissolved-solids concentrations were small in the Big Sandy River at station 09213500 and the Little Sandy River at station 09214500, compared to the downstream reaches of the Big Sandy River at stations 09216000 and 09216050 (fig. 9). Return flows from an extensive area of crop irrigation enter the Big Sandy River between stations 09213500 and 09216000; Belong (1977) noted inflow of saline water from seeps between stations 09216000 and 09216050.
Calcium was the predominant cation in the Big Sandy River at station 09213500. Calcium and sodium comprised nearly equal proportions of the cation milliequivalents in the Little Sandy River at station 09214500. Sodium was the predominant cation in the Big Sandy River at stations 09216000 and 09216050. The predominant anion was bicarbonate in the Big Sandy River at station 09213500. Sulfate predominated in the Little Sandy River at station 09214500 and the Big Sandy River at stations 9216000 and 09216050. The seeps between stations 09216000 and 09216050 along the Big Sandy River contain large concentrations of sodium and sulfate (DeLong, 1977).
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Figure 9. Mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the Big Sandy River drainage.
20
Suspended-sediment and turbidity concentrations in the Big Sandy River drainage did not have a distinct pattern. A regression equation relating specific conductance to streamflow is presented for only one station of the four. Regression equations relating most or all of the major ions and dis solved solids to specific conductance- are presented for the four stations.
Bitter Creek and Vermillion Creek Drainages
Water-quality sampling stations in the Bitter Creek drainage include three stations on the main stem of Bitter Creek and four stations on tribu taries to Bitter Creek. Data from station 09235300 on Vermillion Creek also are mentioned in this section because the headwaters of Vermillion Creek are adjacent to the headwaters of the Bitter Creek drainage. Streams in the Bitter Creek drainage are intermittent or have small quantities of baseflow. The median values of streamflow at the time of sampling are shown in figure 10.
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Figure 10. Mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the Bitter Creek and Vermillion Creek drainages.
21
The mean dissolved-solids concentrations were largest at the middle station of the three stations on Bitter Creek (fig. 10). The decrease in mean dissolved-solids concentration in Bitter Creek from 3,530 mg/L at station 09216562 to 2,076 mg/L at station 09216880 was largely due to dilution by Salt Wells Creek. The mean dissolved-solids concentration was 1,922 mg/L in Salt Wells Creek at station 09216750, near the mouth. The smallest mean dissolved- solids concentration in the Bitter Creek drainage was 618 mg/L in Gap Creek at station 09216576, whereas the largest was 5,763 mg/L in Killpecker Creek at station 09216810.
The predominant cation was sodium at seven of the nine stations in the Bitter Creek and Vermillion Creek drainages. The predominant cation was magnesium, in Salt Wells Creek at station 09216565 and Gap Creek at station 09216576. The predominant anion was sulfate at all nine stations. The mean chloride concentration in Killpecker Creek at station 09216880 was greater than 1,000 mg/L; the mean chloride concentrations were about 500 mg/L in Bitter Creek at stations 09216562 and 09216880. Inflow from flowing wells or seeps may contribute to the large chloride concentrations in Killpecker Creek and Bitter Creek. A water sample collected from a flowing well near Killpecker Creek contained a chloride concentration of 3,700 mg/L.
Suspended-sediment and turbidity concentrations in the Bitter Creek drainage did not have a distinct pattern. The largest median concentrations of these two constituents were in Salt Wells Creek at station 09216750. The large median fecal coliform bacteria count of 460,000 cols/100 mL in Bitter Creek at station 09216880 was a result of sewage effluent. Concentrations of nitrogen and phosphorus also were large at the same station. The largest mean water temperature in the two drainage areas was 11.1°C in Killpecker Creek at station 09216810.
Regression equations relating specific conductance to streamflow are not presented for any of the stations in the Bitter Creek and Vermillion Creek drainages. Equations relating dissolved solids and most or all of the major ions to specific conductance are presented in table 3.
Blacks Fork and Henrys Fork Drainages
Eight water-quality stations are located in the Blacks Fork drainage area and one on Henrys Fork. The streams are perennial at each station. The smallest mean dissolved-solids concentration in the Blacks Fork drainage was 65 mg/L, in the Blacks Fork at station 09218500; the largest mean concentra tion was 1,632 mg/L, also on the Blacks Fork, at station 09222000 (fig. 11). The decrease in the mean dissolved-solids concentration in the Blacks Fork to 1,164 mg/L at station 09224700 probably was due to dilution by tributaries. The Hams Fork at stations 09224050 and 09224450 contained a small mean dissolved-solids concentration, compared to Little Muddy Creek at station 09222300 and Muddy Creek at station 09222400.
An increase in the proportions of sodium and sulfate in the downstream direction in the Blacks Fork drainage is evident on plate 1. Calcium was the predominant cation in Blacks Fork at station 09218500, Hams Fork at stations 09224050 and 09224450, Little Muddy Creek at station 09222300, and Henrys Fork
22
CO Q
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Figure 11. Mean dissolved-solids concentrations arid median instantaneous streamflow values at stations in the Blacks Fork and Henrys Fork drainages.
at station 09229500. Sodium was the predominant cation in the Smiths Fork at station 09221650, Blacks Fork at stations 09222000 and 09224700, and in Muddy Creek at station 09222400. Bicarbonate was the predominant anion in Blacks Fork at station 09218500 and Hams Fork at stations 09224050 and 09224450; it was a co-dominant, with sulfate, in Smiths Fork at station 09221650. Sulfate was the predominant anion at the other five stations in the Blacks Fork and Henrys Fork drainages.
Suspended-sediment and turbidity concentrations in the Blacks Fork and Henrys Fork drainages were smallest in the Blacks Fork at station 09218500 and in the Hams Fork at station 09224050. The Hams Fork at station 09224050 con tained larger concentrations of fecal coliform bacteria than other stations in the drainages; this probably was due to sewage effluent.
Regression equations are presented for seven of the nine stations in the Blacks Fork and Henrys Fork drainages, relating specific conductance to streamflow. Equations relating dissolved solids and most of the major ions to specific conductance also are presented.
23
Great Divide Drainage Basin
The Great Divide basin is unique because it drains internally to playas rather than to a larger drainage. Streams in the Great Divide basin are ephemeral or intermittent, with the exception of perennial springs in the headwaters. Water-quality data from station 09216527, on an intermittent reach of Separation Creek, are summarized. The median streamflow at this station was 1.05 ft 3/s, but there was no flow on at least 25 percent of the sample dates. The mean dissolved-solids concentration was 774 mg/L. Magne sium and sulfate were the predominant ions (pi. 1). The median suspended- sediment value was 212 mg/L and the median turbidity value was 50.0 NTU.
Dissolved-solids concentrations varying from less than 100 to more than 600 mg/L during snowmelt runoff in several ephemeral streams of the Great Divide basin were noted by H.W. Lowham (U.S. Geological Survey, written com- mun., 1982). Larson and Zimmerman (1981) reported a range of dissolved-solids concentrations from 60 to about 6,000 mg/L in several reaches of Separation Creek.
Regression equations relating the dissolved solids and major ions to spe cific conductance are presented, but an equation relating specific conductance to streamflow is not.
Little Snake River Drainage
The Little Snake River at station 09253000 is perennial; the streamflow is sustained by snowmelt from the Sierra Madre. The mean dissolved-solids concentration of 98 mg/L was small, compared to other streams of the Green River coal region. Calcium and bicarbonate were the predominant ions in the water. Regression equations relating specific conductance to streamflow, and dissolved solids and some of the major ions to specific conductance are included in table 3.
NEED FOR FUTURE SAMPLING PROGRAMS
The regression models showed poor correlation between specific conduct ance and discharge for many ephemeral and intermittent streams and some perennial streams. The patterns of specific conductance, dissolved solids, and the major-ion concentrations need to be studied in more detail, and significant variables affecting the patterns need to be identified. Better definition of the patterns in ephemeral and intermittent streams may be particularly difficult, because: (1) The temporary nature of flow in these streams hampers designing an effective sampling schedule, and (2) water- quality conditions can drastically change within a matter of hours. Sampling of ephemeral and intermittent streams, particularly at remote locations, may be aided through use of automated samplers.
SUMMARY
Water-quality data from 72 stations were summarized through descriptive statistics and regression analyses. A total of 33 stations were located in the Powder River coal basin, 4 stations were located in or near the Hanna coal field, and 35 stations were located in the Green River coal region. The sam ples were collected during water years 1975-81, from perennial, intermittent, and ephemeral streams.
24
Constituents for which descriptive statistics are presented include dissolved solids, major ions, nutrients, bacteria, trace elements, suspended sediment, turbidity, and other miscellaneous constituents. Constituents included in the regression analyses are dissolved solids, major ions, stream- flow, the logarithm of streamflow, and specific conductance.
An increase in the mean concentration of dissolved solids in the down stream direction was noted in many streams of the Powder River coal basin and the Green River coal region. This downstream increase was noted in Clear Creek and in the Tongue, Cheyenne, North Platte, Green, and Big Sandy Rivers, which are all perennial streams originating in the mountains. The exception to this pattern occurred in the Powder River, because of the influence of Salt Creek and other tributaries. The downstream pattern of dissolved-solids concentrations varied in ephemeral or intermittent streams originating in the plains.
A change in the proportions of the ions in the downstream direction was noted in many of the perennial and intermittent streams. The proportions of sodium and sulfate, relative to calcium and bicarbonate, became larger in the downstream direction in the Tongue, Powder, Little Powder, Cheyenne, Belle Fourche, and Big Sandy Rivers.
SELECTED REFERENCES
Bahls, L.L., 1980, Salinity and the structure of benthic algae (periphyton) communities in streams of the southern Fort Union region, Montana: Helena, Mont., Montana Department of Health and Environmental Sciences, 35 p.
Bauer, D.P., Rathbun, R.E., and Lowham, H.W., Traveltime, unit-concentration, longitudinal-dispersion, and reaeration characteristics of upstream reaches of the Yampa and Little Snake Rivers, Colorado and Wyoming: U.S. Geological Survey Water-Resources Investigations 78-122, 66 p.
DeLong, L.L., 1977, An analysis of salinity in streams of the Green River basin, Wyoming: U.S. Geological Survey Water-Resources Investigations 77-103, 32 p.
Druse, S.A., Dodge, K.A., and Hotchkiss, W.R., 1981, Base flow and chemical quality of streams in the Northern Great Plains area, Montana and Wyoming, 1977-78: U.S. Geological Survey Water-Resources Investigations Open-File Report 81-692, 60 p.
Freudenthal, P.B., 1979, Water-quality data for the Hanna and Carbon basins, Wyoming: U.S. Geological Survey Open-File Report 79-1277, 41 p.
Glass, G.B., 1978, Wyoming coal fields, 1978: Laramie, Wyo., Geological Survey of Wyoming Public Information Circular No. 9, 91 p.
Greeson, P.E., Ehlke, T.A., Irwin, G.A., Lium, B.W., and Slack, K.V., 1977, Methods for collection and analysis of aquatic biological and microbio logical samples: U.S. Geological Survey Techniques of Water Resources Investigations, Book 5, Chapter A4, 332 p.
Guy, H.P., and Norman, V.W., 1970, Field methods of measurement of fluvial sediment: U.S. Geological Survey Techniques of Water Resources Investi gations, Book 3, Chapter C2, 59 p.
Hausel, W.D., Glass, G.B., Lageson, D.R., Ver Ploeg, A.J., and De Bruin, R.H., 1979, Wyoming mines and minerals, 1979: Laramie, Geological Survey of Wyoming map, 1 sheet, scale 1:500,000.
25
Hembree, C.H., Colby, B.R., Swenson, H.A., and Davis, J.R., 1952, Sedimenta tion and chemical quality of water in the Powder River drainage basin, Wyoming and Montana: U.S. Geological Survey Circular 170, 92 p.
Klarich, D.A., and Regele, S.M., 1980, Structure, general characteristics, and salinity relationships of benthic macroinvertebrate associations in streams draining the southern Fort Union coalfield region of southeastern Montana: Billings, Mont., Montana Department of Health and Environmental Sciences, 148 p.
Knapton, J.R., and Ferreira, R.F., 1980, Statistical analyses of surface- water-quality variables in the coal area of southeastern Montana: U.S. Geological Survey Water-Resources Investigations Report 80-40, 128 p.
Knapton, J.R., and McKinley, P.W., 1977, Water quality of selected streams in the coal area of southeastern Montana: U.S. Geological Survey Water- Resources Investigations 77-80, 145 p.
Larson, L.R., and Zimmerman, E.A., 1981, Water resources of Upper Separation Creek basin, south-central Wyoming: U.S. Geological Survey Water- Resources Investigations Report 80-85, 69 p.
Lowham, H.W., Belong, L.L. Collier, K.R., and Zimmerman, E.A., 1982, Hydrology of Salt Wells Creek -- A plains stream in southwestern Wyoming: U.S. Geological Survey Water-Resources Investigations 81-62, 52 p.
Mendenhall, William, 1979, Introduction to probability and statistics: North Scituate, Mass., Duxbury Press, 594 p.
Riggs, H.C., 1968, Some statistical tools in hydrology: U.S. Geological Survey Techniques of Water Resources Investigations, Book 4, Chapter Al, 39 p.
Ringen, B.H., Shown, L.M., Hadley, R.F., and Hinkley, T.K., 1979, Effect on sediment yield and water quality of a nonrehabilitated surface mine in north-central Wyoming: U.S. Geological Survey Water-Resources Investiga tions 79-47, 23 p.
Rucker, S.J., IV., and DeLong, L.L., 1987, Evaluation of selected water- quality stations in Wyoming: U.S. Geological Survey Water-Resources Investigations Report 82-4003, 72 p.
SAS Institute, Inc., 1982, SAS user's guide--Statistics--1982 edition: Gary, N.C., 584 p.
Skougstad, M.W., Fishman, M.J., Friedman, L.C., Erdmann, D.E., and Duncan, S.S., 1979, Methods for determination of inorganic substances in water and fluvial sediments: U.S. Geological Survey Techniques of Water Resources Investigations, Book 5, Chapter Al, 625 p.
U.S. Environmental Protection Agency, 1976, Quality criteria for water: Government Printing Office, U.S. Environmental Protection Agency Report, EPA-570/9-76-003, 159 p.
U.S. Geological Survey, 1976-82, Water resources data for Wyoming, water years 1975-81--volumes 1 and 2: U.S. Geological Survey Water-Data Reports WY-75-1, WY-76-1 to WY-81-1, and WY-76-2 to WY-81-2 (published annually).
Wangsness, D.J., 1977, Physical, chemical, and biological relations of four ponds in the Hidden Water Creek strip-mine area, Powder River basin, Wyoming: U.S. Geological Survey Water-Resources Investigations 77-72, 48 p.
Wyoming State Inspector of Mines, 1982, Annual report of the State Inspector of Mines of Wyoming: Rock Springs, Office of the State Inspector of Mines, 77 p.
26
SUPPLEMENTAL DATA
27
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981
[Water-quality constituent:
Regression statistics:
Independent variable:
Values in milligrams per liter, except as indicated; DEC C, degrees Celsius;FT3/S, cubic feet per second; NTU, Nephelometric turbidity units; MICROSIEMENS, microsiemensper centimeter at 25 degrees Celsius; UG/L, micrograms per liter; UG/KG, micrograms perkilogram, COLS/100 ML, colonies per 100 milliliters of water. CELLS PER ML, cells permilliliter of water.*, value not included in table because coefficient of determination was less than 0.50,or significance of probability of the F-value was greater than 0.05, where F equals theratio of the regression mean square to the error mean square.K, specific-conductance value, in microsiemens per centimeter at 25 degrees Celsius;Q, instantaneous-streamflow value, in cubic feet per second; LOGQ, base 10 logarithm ofinstantaneous-streamflow value, in cubic feet per second]
STATION NUMBER: 06298000 STATION NAME AND LOCATION: TONGUE RIVER NEAR DAYTON, WYO.DRAINAGE AREA: 204 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,
DISSOLVEDMERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE SIZE
83834775353675821
3737
372482828282828282818182811014
101013101310131324102680
131
MAXIMUM
18.002310.00
20.00360.0013.004.908.50
172.000.130.131.30
0.611.901.35
180.0056.0029.00
240.008.806.70
24.0019.000.6011.001.00
20.00210.00<2.00
<20.00<10.00410.0012.00
<10.0020.001.00
42.0014.00
1600.00369.00
0.6010.00
MINIMUM
0.0034.000.00
50.007.600.606.80
41.000.130.010.01
0.010.000.00
58.0012.002.700.000.000.100.000.000.000.000.00
20.00<20.00
2.00<20.00<10.00<10.00<2.00
<10.00<20.00<1.000.001.00
10.0074.00
<0.0510.00
STANDARD MEAN DEVIA
TION
6.66194.14
3.13244.2010.312.34--
122.94--0.030.25
0.150.200.04
127.8432.5911.244.730.190.962.076.070.156.22-------- -- -- --6.924.90
433.27137.87
--
4.93344.64
4.7353.161.501.00--
25.01--0.030.22
0.120.410.15
25.347.143.43
26.310.960.743.344.080.091.68---- ------ -- 9.164.56
412.5035.37
----
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95
15.771.18.
312.12.3.8.
148.--0.0.
0.1.0.
160.43.15.3.0.1.8.
16.0.9.1.----
<2.<20.<10.410.12.
<10.<20.
1.35.14.
1460.167.
0.
0020250068794200
1266
3861120085855010704700303900
000000000000000025000000
60
75
10.50143.00
3.00280.0011.603.228.20
140.00--0.050.33
0.190.220.02
150.0037.0013.002.300.101.121.808.000.206.801.00----
<2.00<20.00<10.0030.003.00
<10.00<20.00<1.0011.008.00
587.50154.00
<0.50
50 (MEDIAN)
5.5071.001.00
260.0010.502.108.10
131.00--0.010.19
0.130.050.01
130.0034.0012.001.800.100.901.104.900.106.30<1.00 --
<2.00<20.00<10.0020.00<2.00
<10.00<20.00<1.002.003.00
265.00140.00
<0.50--
25
2.0055.001.00
225.008.901.527.90
110.00 0.010.12
0.070.000.01
120.0029.009.471.300.100.600.403.300.105.75<1.00 --
<2.00<20.00<10.00<10.00<2.00
<10.00<20.00<1.001.001.00
140.00120.00
<0.50--
5
0.5041.200.00
139.008.080.777.24
74.15 0.010.02
0.020.000.0073.7518.155.320.530.000.310.101.000.103.73<1.00
<2.00<20.00<10.00<10.00<2.00
<10.00<20.00<1.000.251.00
23.3087.20
<0.50--
28
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06298000 STATION NAME AND LOCATION: TONGUE RIVER NEAR DAYTON, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDENT REGRESSION SIZE COEFFICIENT VARIABLE CONSTANT
COEFFICIENT OF SIGNIFICANCE STANDARDDETERMINATION PROBABILITY ERROR OF
(r 2 ) OF F ESTIMATE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVED
407474747474737472587172
0.00779-97.8-53.5-54.3-12.8
*.».*"':
*
*
*
QLOGQLOGQLOGQLOGQLOGQLOGQLOGQ
QKQ
LOGQ
1.3444223023658.2
**.1**iV
*
0.51.61.76.79.54.40.00.00.03.01.05.37
0.0001.0001.0001.0001.0001.0001.559.592.158.584.0644.0001
33313115
fc
*
5660900
-
29
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 06299980 STATION NAME AND LOCATION: TONGUE RIVER AT MONARCH, WYO. DRAINAGE AREA: NOT AVAILABLE
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (MG/L AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
75737375713673732
7373
732
7377
737373737373737368731666161618641816181872
73
182
2322001006601398
244002
00081
300673232075
150093
3503
206
490163020
120
470395
036
.00
.00
.00
.00
.60
.60
.90
.00
.02
.31
.00
.87
.10
.28
.30
.10
.00
.00
.00
.00
.90
.40
.20
.00
.40
.30
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.0043.000.70
180.007.900.806.90
79.000.010.000.01
0.000.010.002.900.20
93.0022.007.603.000.100.300.6012.000.000.10
<1.00<20.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.000.00
360.00105.00
<0.5016.00
8.51246.8212.31
438.6010.392.62--
175.01--0.060.55
0.14 0.04----
213.2348.3322.5015.820.462.012.06
66.970.196.87-------- ---------- --
269.85
----
DEVIA- 95TION
7.42 21392.70 115521.14 80107.43 582
1.39 121.57 5
840.08 215 0.06 00.37 1
0.14 0 0.04 0____
51.57 27010.73 616.18 306.63 290.17 00.92 30.83 3
29.04 1300.06 01.52 9
3136
3<20
6317163020
1.___70.78 374
<0__
75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.60
.00
.00
.00
.40
.60-52.10-.20.33
.35-.13--.00.30.00.60.80.19.60.00.30.03.00.00.00.00.00.50.00.00.00.00--.60
.50-
14.50189.5010.00
520.0011.603-158.20
200.00--0.080.71
0.21--0.04----
250.0055.0027.0019.000.502.352.4578.500.207.801.00
60.002.00
<20.002.25
80.003.00
20.00<20.00<1.00----
306.50
<0.50--
8.00111.00
4.10450.0010.402.358.00
190.00 0.040.46
0.10--0.02----
230.0051.0024.0015.000.501.801.90
68.000.207.101.00
50.00<2.00
<20.00<2.0040.00<2.0010.00
<20.00<1.00----
288.00
<0.50--
0.5074.002.00
395.009.201.627.85
160.00--0.010.34
0.05--0.01----
190.0044.5020.0012.500.401.501.60
57.500.206.30
<1.0040.00<2.00
<20.00<2.0020.00<2.00
<10.00<20.00<1.00----
241.50
<0.50--
0.0052.801.00
208.008.000.977.47
87.20 0.010.10
0.01--0.01--
99.7025.009.184.420.201.000.7716.400.104.87
<1.00<20.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00--
115.80
<0.50--
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
676968686868686868686868
REGRESSION COEFFICIENT
-209*
.313
.443
.0889
.0531
.0512
.00114#*.239.628
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQ
KKKKKKKKKK
*88737.318.59.18-.841
-6.51-.0392**
-37.9-5.87
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.26.56.73.88.83.87.69.54.10.32.79.92
0 .0001.0001.0001.0001.0001.0001.0001.0001.0085.0001.0001.0001
STANDARD ERROR OF ESTIMATE
--73.721.518.74.482.273.83.119**
13.820.1
30
Table 1.--Statistical summaries of water-quality data from the Powder JRiver coal basin, based on samples collected from October 1, 1974, to September 30, I981--Continued
STATION NUMBER: 06304500 STATION NAME AND LOCATION: LITTLE GOOSE CREEK AT SHERIDAN, WYO. DRAINAGE AREA: NOT AVAILABLE
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVED (MG/L)PH (UNITS)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)
SAM PLESIZE
2929292928291617
1717
MAXIMUM
29.00268.0035.00
1120.0014.008.800.833.80
0.780.41
MINIMUM
0.004.002.00
210.007.007.800.000.52
0.000.00
MEAN
11.56.8.
721.11.--0.1.
0.0.
0761247216
0911
1708
STANDARD DEVIATION
8.3366.397.79
190.561.64--0.200.90
0.250.10
PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN95
27.00246.5030.00
1060.0013.918.700.833.80
0.780.41
75
17.2568.0010.00
830.0012.408.400.071.25
0.280.11
OR EQUAL TO THOSE SHOWN50
(MEDIAN)
11.5032.006.00
740.0010.808.300.050.74
0.050.03
25
3.5015.503.00
652.5010.208.100.010.59
0.010.02
5
0.006.652.00
235.007.907.850.000.52
0.000.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU) SPECIFIC CONDUCTANCE (MICROSIEMENS)
SAMPLE SIZE
26 26
REGRESSION COEFFICIENT
-2.56
INDEPENDENT VARIABLE
Q Q
REGRESSION CONSTANT
-A-
878
COEFFICIENT OF DETERMINATION
(r 2 )
0.48 .79
SIGNIFICANCE PROBABILITY
OF F
0.0001 .0001
STANDARD ERROR OF ESTIMATE
94.2
31
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06305500 STATION NAME AND LOCATION: GOOSE CREEK BELOW SHERIDAN, WYO. DRAINAGE AREA: 392 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUM SIZE
1431578284816784852
8282
82268587
85858585858585858585165
161619171916191823102
85
1996
29.5540.
90.1050.
14.9.8,
295.0.2.9,
0,1.2.
13.1,
480.150.65,49.1.
11.20.
260.0.
16.1.
160.2.
<20,8.
110,12.60,
<20.2,
208000.21
3200621
<01740
.00
.00
.00
.00,40.90.70,00,01.60.60
.82
.40
.70
.00
.40
.00
.00,00.00.10.00,00.00.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00
.50
.00
MINIMUM MEAN
0.0018.001.00
165.005.601.406.80
41.000.010.010.42
0.000.010.034.400.10
60.0014.006.104.800.200.200.80
21.000.100.00<1.0050.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00
1400.001.00
2100.0095.00
<0.505.00
9.49301.6812.51
682.8010.304.76
223.62--0.661.52
0.250.220.37 --
316.1161.1639.6427.990.673.136.54
140.460.398.18 -------- --
34917.396.40--
423.41
--113.60
STANDARD DEVIA TION
7.95651.5314.62
199.371.911.78
64.45--0.521.18
0.200.290.40 --
97.7820.0714.159.570.171.543.72
53.050.123.09-- ---- ------
41838.355.74
130.05
--297.85
PERCENT OF SAMPLES IN WERE LESS THAN OR EQUAL95
24.001388.0040.00
937.5013.208.568.60
286.70--1.702.97
0.581.121.12----
440.0082.5058.7040.000.905.0016.00
227.000.6013.001.00 2.00
<20.008.00
110.0012.0060.00<20.00
2.00179198.24
21.00--
597.00
<0.50788.00
75
14.00181.0015.00
800.0011.605.608.30
262.50 0.991.80
0.430.220.43----
370.0072.0048.0034.000.803.807.60
170.000.5010.001.00--2.00
<20.003.00
55.003.00
37.50<20.00
1.0041000.00
8.25
495.00
<0.5058.50
WHICH VALUES TO THOSE SHOWN
50 25 (MEDIAN)
8.5096.007.00
730.0010.404.708.20
250.00--0.551.30
0.190.120.28----
350.0066.0043.0030.000.703.005.80
150.000.408.00<1.00
<2.00<20.00
2.0050.00<2.0025.00<20.00
1.0030999.93
4.50
466.00
<0.5022.00
1.0070.003.00
650.009.103.207.90
206.00 0.240.85
0.100.050.15--
290.0056.0035.0025.000.602.454.20
120.000.306.35<1.00--
<2.00<20.00<2.0015.00<2.00
<10.00<20.00<1.00
12000.002.75--
391.00
<0.5014.00
5
0.0040.701.00
202.506.732.207.42
66.50 0.010.51
0.030.020.04--
86.2018.608.956.110.301.001.83
30.300.132.82
<1.00--
<2.00<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00
1420.001.00
121.00
<0.507.00
32
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06305500 STATION NAME AND LOCATION: GOOSE CREEK BELOW SHERIDAN, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE SIZE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
80828282828282828282828221
TMTiFPFMTlFiaT PFnwwnv COEFFICIENT OF SIGNIFICANCE REGRESSION INDEPENDENT REGRESSION nrTr.RMTvrATTnN PRDRARTTTTV COEFFICIENT VARIABLE CONSTANT DETERMINATION PROBABILITY
*-460
.294
.466
.0849
.0614
.0436
.000686**.245.623.100
LOGQLOGQ
KKKKKKK
LOGQKKK
iV
1,61023.7-.3603.30-2.07-1.61
.207 v*
-25.5.201
13.7
0.41.82.82.90.71.75.82.69.25.29.84.91.81
0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*86.527.731.711.07.224.10.0941
-/v*
21.440.015-8
33
Table 1.--Statistical summaries of water-gua2ity data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06306300 STATION NAME AND LOCATION: TONGUE RIVER AT STATE LINE, NEAR DECKER, MONT. DRAINAGE AREA: 1,477 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
88827188843486877985
83248499
84848484848384848481188
1818212021182123152
2882
2126
254320100
17001388
62005
101
363
900180110981
1118
4901
264
1203
2050
3601480601
24004
88001320
<0213
.00
.00
.00
.00
.80
.00
.70
.00
.67
.20
.40
.98
.60
.00
.90
.00
.00
.00
.00
.40
.00
.00
.00
.70
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.0071.001.00
230.006.000.807.00
72.000.000.08
0.000.000.003.400.40
100.0024.009.605.900.300.200.9030.000.100.00
<1.0070.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0020.001.00
170.00130.00
<0.509.00
8.89500.7717.11
727.4710.052.64--
224.590.150.80
0.200.230.09----
340.6067.3641.7934.520.803.545.02
181.390.396.91--------------------
268.93--
1872.86475.72
--55.54
DEVIA- 95TION
8.00 22715.81 173421.69 74
227.37 10161.79 131.41 5
870.40 2920.15 00.67 2
0.22 00.28 00.17 0 _.
112.48 44721.90 9115.14 5614.16 510.22 11.40 53.40 1575.51 2800.19 03.61 12
4
32050
2751276601
602.29 2400--
2073.71 7854169.88 647
<044.65 185
75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.55
.99
.00
.60
.15
.82
.60
.40
.45
.08
.54
.96
.20--.50.00.75.75.17.48.50.00.67.90.00-.00.00.00.00.00.00.00.00.00-.97.20
.50
.70
15.87427.2520.00
850.0011.473.258.30
260.000.220.90
0.350.330.11----
400.0078.7550.0042.000.904.205.82
230.000.408.601.00--2.00
<20.004.50
40.004.00
30.00<20.00
1.00130.00
--2400.00569.25
<0.5063.75
8.75264.0010.00
760.009.902.408.10
240.000.090.66
0.110.140.06----
360.0069.5044.0035.000.803.504.10
190.000.406.601.00--2.00
<20.002.00
20.002.00
20.00<20.00<1.00100.00
--945.00502.00
<0.5046.50
0.00184.50
4.00642.50
8.601.577.90
200.000.040.48
0.030.010.03----
290.0056.5036.0028.000.702.803.50
142.500.304.65
<1.00--
<2.00<20.00
2.00<10.00<2.00
<10.00<20.00<1.0068.00--
565.00395.00
<0.5029.75
0.00104.15
1.60289.00
7.200.957.47
96.800.010.19
0.010.000.01----
125.0027.0013.258.600.301.601.72
42.000.202.33
<1.00--
<2.00<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0020.00--
219.50176.40
<0.509.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
66828179797979797879797826
REGRESSION COEFFICIENT
-446*
.250
.448
.0837
.0579
.0569
.000946
.00397-v
.311
.647
.106
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQLOGQ
KKKKKKKKKKQ
*1,820
39.813.15.99-.372
-7.16.106.582*
-46.2.739
21.3
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.47.64.80.91.87.76.87.82.50.14.87.86.53
0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0007.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*12425.529.46.586.564.42.0904.799*
24.53.031.3
34
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06312500 STATION NAME AND LOCATION: POWDER RIVER NEAR KAYCEE, WYO.DRAINAGE AREA: 980 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
8475794181378111
1228181818181818181818180
11
2480
26126030001900
138
25000
022
68019064180
39
110710
113
13010
34001300
.00
.00
.00
.00
.00
.70
.00
.03
.60
.05
.10
.80
.00
.00
.00
.00
.50
.10
.00
.00
.00
.00
.00
.00
.00
.00
0.000.332.00
400.006.207.60
82.000.030.60
0.050.000.00
160.0045.0012.0014.000.501.305.60
92.000.001.50
130.0010.006.00
233.00
9.43157.31225.291224.88
9.87--
184.05----
--0.390.19
446.17110.4041.3693.481.903.38
47.76387.60
0.537.69----
363.71803.90
DEVIA- 95TION
8.13 23257.59 1010513.78 1500331.25 1866
1.76 128
33.21 230--__
--0.51 10.38 0
111.57 59827.18 14911.74 6035.77 1590.62 31.14 5
22.46 91131.38 589
0.17 02.16 11----
728.76 2849228.17 1169
75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.00
.00
.00
.00
.50
.52
.00--
-.99.84.00.00.00.00.10.35.70.00.80.00--.97.50
17.00140.00120.00
1440.0011.608.25
202.50----
--0.500.13
520.00130.0049.00110.00
2.203.75
56.50475.00
0.609.30----
355.00938.00
8.2592.0030.00
1190.009.908.10
190.00----
--0.250.05
460.00120.0043.0090.001.803.30
47.00390.00
0.507.60----
92.00825.50
1.0023.0010.00
1060.008.358.00
170.00----
--0.040.03
395.0097.5035.0078.501.602.70
37.50330.00
0.405.92----
27.75716.75
0.000.842.00
500.707.027.69
108.30----
--0.000.01
210.0054.4015.2024.300.802.017.98
111.000.304.03----6.75
313.25
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
283229292929292929292929
REGRESSION COEFFICIENT
-337*
.0693
.311
.0713
.0324
.109
.00168*.0662.378.670
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQLOGQ
KKKKKKKKKK
J-
1,78097.868.622.82.43
-34.3-.0710*
-30.2-63.1-37.8
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.10.62.60.90.87.80.89.79.12.78.96.97
0 .101.0001.0001.0001.0001.0001.0001.0001.0699.0001.0001.0001
STANDARD ERROR OF ESTIMATE
J.
22620.438.19.865.7813.8
.308*
12.527.645.2
35
Table I.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 06313000 STATION NAME AND LOCATION: SOUTH FORK POWDER RIVER NEAR KAYCEE, WYO. DRAINAGE AREA: 1,150 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM- PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEAN DEVIA- 95SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)
687451475043691817
18236869696969696969696969999999999
1069
9
. 311000
240006200
128
27929
2104
18004701709301315
4203000
432
12
2018409
903026
32004800
<0
.50
.00
.00
.00
.90
.50
.00
.50
.10
.90
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
0.000.001.00
2050.006.207.50
70.000.010.07
0.020.000.01
450.0032.0025.00
210.004.100.8016.00
760.000.600.00<1.00<2.00<20.00
2.00<10.00<2.00
<10.00<20.00
1.0014.00
770.00
<0.50
8.8732.27
1344.293763.40
9.79--
165.000.171.71
1.121.590.33
1106.96295.2585.94
503.776.689.11
126.031795.65
1.387.30------ ------ --
478.302919.32
--
TION
9.47 28123.73 159
3714.43 6899975.24 5380
1.75 128
42.53 2340.58 22.44 9
0.90 22.24 90.71 2
325.06 160098.03 44528.64 135156.88 745
1.72 92.73 1471.65 225
511.13 26500.73 33.86 11____---- ---- --
969.80 3200839.63 4250
--
75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.77
.25
.98
.00
.69
.48
.00
.50
.10
.90
.04
.07
.00
.00
.00
.00
.90
.00
.00
.00
.35
.00---------.00.00
-
16.3713.75
1100.004500.00
11.328.20
200.000.041.55
1.932.200.23
1400.00380.00100.00630.00
7.8011.00
175.002300.00
1.308.60------ ----------
420.003565.00
--
4.753.00
60.003900.00
10.208.00
164.000.030.79
1.100.800.05
1100.00310.0087.00
480.006.309.00
120.001800.00
1.207.10-------- ---- --
96.503040.00
--
0.500.0510.00
3000.008.357.90
131.000.010.56
0.170.040.03
830.00220.0066.00
380.005.357.10
69.001400.00
1.105.45------------ ----
52.002301.50
--
0.000.001.00
2140.006.867.50
89.000.010.07
0.020.000.01
515.00135.0038.50
250.004.305.4030.50
860.000.852.35------ -- -- --14.00
1400.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
232727272727272727272726
REGRESSION COEFFICIENT
**JL
0.244**.117**.0508.381.699
INDEPENDENT VARIABLE
QLOGQLOGQ
KKKKKKKKK
REGRESSION CONSTANT
***
157**
83.5**
-79.3394295
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.35.31.12.50.26.41.62.23.38.56.56.61
0 .0029.0024.0820.0001.0070.0003.0001.0123.0007.0001.0001.0001
STANDARD ERROR OF ESTIMATE
***
222A*
83.9**
40.8312518
36
Table 1. --Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06313400 STATION NAME AND LOCATION: SALT CREEK NEAR SUSSEX, WYO.DRAINAGE AREA: 769 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
1471481076716067822
6564
652783
11
828282828281828282827
6377787777
122
81
782
29236026008000
1298
107000
38
003
120
3100600390
18004926
16002000
9336
62003
109
44035
27040
11106607100
<088200
.50 0.
.00 8.
.00 20.
.00 1700.
.40 0.
.80 0.
.90 7.
.00 150.
.01 0.
.91 0.
.00 0.
.64 0.
.85 0.
.30 0.
.00 12.
.90 0.
.00 200.
.00 23.
.00 7.
.00 140.
.00 1.
.00 6.
.00 120.
.00 570.
.20 0.
.00 5.
.00 1.
.00 270.
.00 <2.
.00 <10.
.00 <2.
.00 <10.
.00 <2.
.00 <10.
.00 <20.
.00 <1.
.00 3.
.00 150.
.00 1180.
.50 <0.
.00 61.
0000000070107000010019
00000100900000800010600000300000000000000000000000000000
5000
10.7980.90
543.16550.53
7.535.43--
648.02--0.262.36
0.090.120.26----
406.7179.8550.20
1335.4931.4016.55
1132.681025.37
2.5520.01--
1788.73----------------
22.92--
4074.44
--5038.97
STANDARD DEVIATION
8.69222.95871.141309.68
2.511.89--
179.38--0.225.02
0.120.230.48----
324.8064.5141.67
299.479.273.66
321.50290.20
1.436.07--
800.61----------------
30.21--
745.56
--14476.75
PERCENT OF SAMPLES INWERE LESS THAN OR EQUAL95 75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
25.00315.00
2600.008000.00
11.087.608.50
965.90--0.648.65
0.380.801.28----
667.00140.0088.25
1600.0044.0021.90
1400.001700.00
4.6728.70--
2640.00----------------
110.00--
4786.00
--32679.93
17.5045.50
850.007725.00
9.206.978.40
752.50--0.422.00
0.110.100.25----
410.0092.2550.25
1500.0038.0019.50
1300.001100.00
3.6224.00--
2000.00----------------
24.25--
4450.00
--1547.50
11.5031.00140.00
6704.997.805.908.30
667.00--0.181.25
0.040.030.10----
350.0067.5042.00
1400.0032.5017.00
1210.00945.00
2.3022.00--
1900.00----------------
11.00--
4130.00
--715.00
0.5026.0036.50
6000.006.804.208.10
580.50--0.090.91
0.010.000.04----
290.0053.7536.00
1300.0027.7514.50
1100.00847.50
1.5016.00--
1600.00----------------7.25--
3870.00
--341.00
0.0016.0020.00
3365.002.382.417.90
225.95--0.010.41
0.000.000.01----
231.5033.6029.00
460.009.649.82
292.50703.00
0.407.63--
420.00---- ----------3.00--
2596.00
--134.30
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
646261616161616162626024
REGRESSION ] COEFFICIENT
*** if
*
0.175**.193**
38.8
[NDEPENDEI VARIABLE
LOGQK
LOGQLOGQLOGQ
KKKKQKK
COEFFICIENT OF SIGNIFICANCE CONSTANT DETERMINATION PROBABILITY
(r 2 ) OF F
*****
189>v*-**
-265
137
0.43.44.04.06.01.66.49.44.54.01.44.53
0 .0001.0001.147.0537.485.0001.0001.0001.0001.390.0001.0001
STANDARD ERROR OF ESTIMATE
*****
170**
241**>v
723
37
Table I.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected front October 1, 1974, to September 30, 2982--Continued
STATION NUMBER: 06313500 STATION NAME AND LOCATION: POWDER RIVER AT SUSSEX, WYO. DRAINAGE AREA: 3,090 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI, FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
72672
565354452
4444
411745413652515151515152525252131051131315501220131329144843
1363
2510500
2007000
128
64000
14
415
5112
1200210160
13002823
16002300
21950300
3400182036
120066
110307
750032
380004030
183700
.00 0.00
.00 26.00
.00 90.00
.00 825.00
.50 4.50
.50 7.20
.00 140.00
.17 0.01
.44 0.01
.00 0.21
.20 0.00
.00 0.00
.10 0.01
.00 2.80
.00 0.20
.00 0.00
.00 63.00
.00 21.00
.00 90.00
.00 2.50
.00 2.80
.00 5.10
.00 200.00
.10 0.00
.00 0.60
.00 1.00
.00 <100.00
.00 130.00
.00 <3.00
.00 <20.00
.00 <25.00
.00 <10.00
.00 <10.00
.00 <10.00
.00 <20.00
.00 <1.00
.00 46.00
.00 0.00
.00 27.00
.00 532.00
.30 <0.50
.00 138.00
9.67507.97
--3150.18
8.87--
361.91--0.101.97
0.430.290.599.712.75
508.65120.2952.90
521.9610.099.18
422.10735.380.9011.245.31--
720.20----------------
915.247.29
3652.022062.14
--5485.95
PERCENT OF SAMPLESSTANDARD WERE LESS THANDEVIA- 95TION
8.25 231395.19 2542
--1291.02 6272
1.61 118
110.11 607--0.09 02.52 8
0.66 00.26 10.92 28.25 223.32 10
150.84 68728.52 16817.63 67
274.95 12405.69 264.20 19
319.11 1200313.77 1235
0.40 13.37 1713.46 50
300581.48 1940
18<20<2514466109307
1746.48 65498.18 32
6534.05 18649801.23 3758
112773.66 23699
75
INOR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.00
.00-.50.59.43.00-.31.75
.90
.00
.64
.70
.30
.50
.00
.00
.00
.80
.00
.00
.00
.77
.70
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
.00
.97
.00
.96
.00
.30
.99
16.37266.00
--3972.50
10.008.33
415.00--0.142.33
0.560.430.7011.003.65
560.00140.0056.00
660.0012.0012.00
615.00887.50
1.1713.752.50
<100.00890.00<3.00
<20.00<25.0052.50<10.0047.5020.003.50
605.0010.75
4175.002590.00
<0.502680.00
9.150.
--2685.
8.8.
340.--0.1.
0.0.0.6.1.
505.120.51.
420.7.7.
320.680.
0.11.1.
<100.520.<3.
<20.<25.36.
<10.22.
<20.2.
190.4.
1550.1720.
<0.805.
2500
00702000
0803
333122801500000000904000008000000000000000500000000000500000
5000
0.5084.00--
2355.007.758.00
290.00--0.030.71
0.060.060.105.400.70
460.00110.0046.00
350.006.706.50
232.50555.00
0.709.101.00
<100.00380.00<3.00
<20.00<25.0020.00
<10.0010.00
<20.001.00
105.002.75
505.001580.00
<0.50436.00
0.0032.00--
1511.506.127.68
203.00--0.010.46
0.000.000.013.460.29
292.0070.8030.80184.004.324.2234.00
396.000.375.061.00
<100.00210.00<3.00
<20.00<25.00<10.00<10.00<10.00<20.00<1.0046.000.00
56.601002.00
<0.50238.40
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
54 -24350494949494950504145
REGRESSION COEFFICIENT
,270.0676***.220.00428.00307.230*.630
6.95
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQKQQKKKKKKKQ
7,950151
***
-163-3.29-.293
-303*
126233
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.64.61.08.11.12.96.88.70.80.19.89.59
0 .0001.0001.0509.0186.0133.0001.0001.0001.0001.0015.0001.0001
STANDARD ERROR OF ESTIMATE
72868.0***
54.51.812.29
142*
2623,100
38
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06316400 STATION NAME AND LOCATION: CRAZY WOMAN CREEK AT UPPER STATION, NEAR ARVADA, WYO. DRAINAGE AREA: 945 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI, FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
97952
555153764
4343
401779413287878787878787878787141251141414511122141432134982
1459
251640100
3180148
370003
000
215
1300320170310
516
1201500
1142
30049013202010053190203
22008
180002280
07860
.50 0.
.00 0.
.00 10.
. 00 445 .
.00 5.
.50 7.
.00 80.
.12 0.
.25 0.
.90 0.
.40 0.
.71 0.
.97 0.
.00 4.
.60 0.
.00 180.
.00 42.
.00 18.
.00 24.
.40 0.
.00 2.
.00 1.
.00 150.
.50 0.
.00 0.
.00 <1.
.00 <100.
.00 70.
.00 <2.
.00 <20.
.00 <20.
.00 <10.
.00 <20.
.00 <10.
.00 <20.
.00 <1.
.00 21.
.00 0.
.00 30.
.00 303.
.50 <0.
.00 8.
00680000606000010013
000000401000000000700090000030000000000000000000000000000000
5000
10.6680.02--
1709.829.88--
193.74 0.050.82
0.120.100.0810.171.14
690.69150.5176.57118.95
1.944.78
11.59718.05
0.408.24
170.20---- ----------
396.413.46
2763.671203.63
--459.53
PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR EQUALDEVIA- 95TION
8.75 24211.07 286
__550.33 2800
1.79 128
53.34 266__0.05 00.63 2
0.12 00.17 00.15 04.06 191.29 5
246.58 116055.68 24628.79 13251.65 2260.63 22.33 813.12 20
290.22 13200.23 03.70 13
2300
67.07 3241320207853190203
514.08 20053.13 8
4064.89 12999448.76 2162
01208.75 2764
75 50TO THOSE
25SHOWN
5(MEDIAN)
.10
.40-.00.56.43.00-.20.32
.40
.71
.36
.80
.21
.00
.00
.00
.00
.86
.86
.00
.00
.86
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.94
.50
.50
.99
19.0055.00--
2050.0011.308.30
230.00--0.070.91
0.190.110.0812.501.30
840.00180.0090.00140.00
2.205.9013.00
890.000.6011.001.25
<100.00180.005.50
<20.00<20.0040.00
<20.00120.0020.001.25
462.506.50
2950.001482.50
<0.50316.00
10.0026.00--
1630.009.808.20
200.00 0.030.72
0.070.060.0310.000.70
700.00150.0076.00
120.002.004.009.30
690.000.308.401.00
<100.00160.00<2.00
<20.00<20.0020.00
<20.0060.0020.001.00
215.003.00
970.001175.00
<0.50103.00
0.5014.00
1400.008.408.00
160.00--0.020.50
0.020.020.027.200.40
570.00120.0063.0089.001.603.307.20
560.000.305.70<1.00
<100.00140.00<2.00
<20.00<20.00<10.00<20.0038.75
<20.001.00
89.750.00
395.00984.25
<0.5043.00
0.004.86
665.006.907.70
96.80--0.000.31
0.000.000.014.920.10
248.0053.6026.2036.000.942.303.36
218.000.201.44
<1.00<100.00
92.00<2.00
<20.00<20.00<10.00<20.00<10.00<20.00<1.0024.250.00
80.00436.80
<0.5011.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
544751515151515151514649
REGRESSION COEFFICIENT
-899*.427.0848.0521.0895.000912**.486.809
2.00
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQKKKKKKKKKKQ
2,970*1.08
10.8-6.23
-20.6.560**
-64.0-76.251.6
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.62.19.91.85.88.83.54.31.19.83.97.92
0.0001.0020.0001.0001.0001.0001.0001.0001.0014.0001.0001.0001
STANDARD ERROR OF ESTIMATE
349*
74.519.310.321.8
.455^»-
*11871.2
104
39
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06317000 STATION NAME AND LOCATION: POWDER RIVER AT ARVADA, WYO. DRAINAGE AREA: 6,050 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, 'DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
1051085873302
4085244
4228585858585858585858585
14111411118
102
85
127
301780080005500
1218
47600
20
015
28002201208501314
6301650
1181
840<2
<203
120
.00
.00
.00
.00
.10
.40
.80
.00
.01
.02
.00
.95
.70
.90
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
.00
.00
.00
.00
.00
.00
0.2.
20.1000.
2.1.7.
120.0.0.0.
0.0.0.
270.70.22.91.2.0.3.
270.0.0.1.
310.<2.
<20.3.
20.<2.00 <2.
<10<20
54000
40780003530
<064200
.00
.00
.00
.00
.00
.00
.00
.50
.00
<10,<20.
5.1,0,
5700.610.
<0.200.
0000000090206000010183
0100010000000020607000,400000,00,00,00,00,00,00,00,00,00,00,00,00,00
.50,00
11.65758.981171.552935.48
8.52----
249.61------
--0.430.47
654.82147.7562.87
422.317.257.48
284.84878.24
0.948.83----------------------8.50--
1968.35
--16409.50
DEVIA- 95TION
9.15 27.002408.08 3238.001912.36 7525.00907.17 5060.00
2.00 11.77__
8.7971.17 381.20------
--0.37 1.580.84 1.84
276.71 875.0032.64 200.0018.31 95.70
141.06 666.001.95 10.702.42 12.00
129.80 522.00264.27 1370.00
0.19 1.202.74 13.70----------------------12.62 40.00--
544.44 2831.00
--18304.03 58919.80
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
19.50398.501225.003500.00
9.90--8.40
283.50------
--0.580.56
735.00170.0076.50
495.008.409.20
360.001100.00
1.0510.00----------------------
11.75--
2325.00
--27999.94
12.00161.00500.00
2800.009.10--8.30
240.00------
--0.430.17
630.00150.0062.00
420.007.307.20
280.00860.00
0.908.50----------------------3.50--
1930.00
--6050.00
1.0083.5087.50
2450.007.18--8.10
215.00-- --
--0.170.05
550.00130.0053.50
350.006.405.80
200.00715.00
0.807.30----------------------0.75--
1675.00
--1720.00
0.0013.0034.50
1474.004.38--7.61
128.40------
--0.000.01
333.0082.3032.60149.00
3.504.13
61.20389.00
0.604.54----------------------0.00--
830.00
--262.40
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
4868 -164646464646464646464
REGRESSION ] COEFFICIENT
,230*
***.0174.0155.00192*.127.271.611
[NDEPENDEI VARIABLE
QLOGQ
QQKKKKKKKK
IT REGRESSION COEFFICIENT OF SIGNIFICANCE rnwoTAvrr DETERMINATION PROBABILITY CONSTANT (r2 j OF F
*5,540
***
10.9-36.3
1.58*
-88.392.3167
0.14.56.24.22.49.68.88.73.41.72.73.91
0.0087.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*610
***
10.551.01.04*
69.2147169
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06320200 STATION NAME AND LOCATION: CLEAR CREEK BELOW ROCK CREEK, NEAR BUFFALO, WYO. DRAINAGE AREA: 322 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR
MINIMUM MEAN DEVIA- 95SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
1301167376747074743
6974
734
741
747474747474737474746
74666
726666
113
72
677
261240
261300
1798
240003
1000
5901306480
1127
4900
151
2105
<205
7003550
<201
1589000
913
<0674
.00
.00
.00
.00
.50
.40
.90
.00
.51
.94
.30
.20
.32
.33
.14
.00
.00
.00
.00
.50
.00
.60
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.0015.00
.80130.008.001.507.50
20.000.010.000.15
0.000.000.010.14
47.0012.004.205.700.400.500.80
31.000.006.00
<1.004.00<2.00
<20.00<2.00
<60.00<2.0020.00
<20.00<1.001.00
1500.0072.00
<0.503.00
8.75124.54
3.88778.8610.673.42--
149.61--0.220.95
0.16--0.14--
339.9779.2834.4141.990.973.024.23
273.570.1810.70--
80.82----------------6.91--
541.19
--35.30
TION
7.75 23193.93 5063.80 11
265.58 11831.60 131.69 7
850.11 210__0.22 00.58 2
0.18 0__0.08 0--
125.14 52028.54 12013.17 5316.28 640.24 11.51 41.55 7
110.30 4520.07 01.89 14__
38.60 170____
183______--4.68 15__
197.67 820
__88.77 141
75EQUAL TO THOSE50 25
SHOWN5
(MEDIAN)
.00
.60
.00
.00
.10
.56
.87
.50-.69.37
.41-.29-.00.00.25.50.30.60.09.50.30.00-.00---.50----.00-.00
-.10
15.00102.254.10
968.7511.404.028.50
180.00--0.361.10
0.23--0.19--
430.00100.0043.0053.251.103.305.20
350.000.2012.00--
90.00------
97.50--------
10.00--
684.75
--26.50
8.0054.003.00
820.0010.602.908.15
167.50--0.140.81
0.10--0.12--
355.0083.5035.5044.001.002.804.20
280.000.2011.00--
80.00------
60.00--------6.00--
553.50
--14.00
0.5038.252.00
650.009.502.277.80
120.00--0.040.63
0.05--0.08--
280.0066.0027.7535.000.902.503.50
220.000.109.48--
60.00------
<60.00---- --4.00--
455.00
--7.00
0.0018.851.00
215.508.501.607.50
41.25--0.010.35
0.00--0.03--
80.0019.757.489.450.481.421.35
52.500.107.10--
25.00------
<60.00--------1.00--
123.55
--4.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
66696767676767676766676524
REGRESSION COEFFICIENT
-589*
.172
.443
.101
.0461
.0575
.000806*.00468.400.716*
INDEPENDENT VARIABLE
LOGQLOGQ
KKKKKKKKKK
LOGQ
REGRESSION CONSTANT
*1,830
'13.8-8.73-.223
-1.88-3.19
.339*.507
-39.6-25.6
*
COEFFICIENT OF DETERMINATION
(r 2 )
0.08.63.86.91.91.89.91.86.20.71.96.96.49
SIGNIFICANCE PROBABILITY
OF F
0 .0252.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*14919.538.78.954.515.13.0928*.852
24.040.2
*
41
Table 1.--Statistical summaries of water-quality data from the Powder River coaJ basin, based on samples collected from October 1, 1974, to September 30, I981--Continued
STATION NUMBER: 06320400 STATION NAME AND LOCATION: CLEAR CREEK AT UCROSS, WYO.DRAINAGE AREA: 409 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,
DISSOLVEDMERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
1181006669655967662
6163
641
641
656565656566666666656
66666
646664
111
65
670
301410
951600
1479
290017
0000
75017079
1202
1917
6700
151
2105
<207
580265020
180
50001190
<0594
.00
.00
.00
.00
.20
.20
.20
.00
.34
.40
.60
.78
.40
.28
.10
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.006.600.00
205.007.801.407.40
48.000.050.010.38
0.000.400.010.1081.0020.007.509.800.500.501.30
50.000.102.60
<1.0030.00<2.00
<20.00<2.00
<10.00<2.0010.00
<20.00<1.001.00
5000.00131.00
<0.503.00
10.50123.24
9.781015.07
10.213.02--
194.00--0.141.08
0.13--0.08--
450.17101.9747.6458.901.184.475.04
371.330.208.54--
114.09----------------15.00--
712.32
--73.14
DEVIA- 95 75TION
823413
31511-
58-01
0-0-
150331622022
13602-
41--------
24-
243
-116
.59 24
.21 659
.41 28
.19 1535
.32 12
.38 68
.88 270-.20 0.05 3
.17 0-.05 0-.80 691.06 147.87 76.09 94.29 1.23 6.50 9.93 606.07 0.78 14-.10 190---
232----.02 80-.34 1121
-.57 401
.00
.90
.30
.00
.54
.00
.76
.00-.43.06
.48-.22-.00.00.50.50.57.63.21.00.30.00-.00---.50----.00-.00
-.65
18.1379.5011.00
1200.0011.253.808.30
240.00--0.161.20
0.17--0.09--
545.00120.0058.0072.001.405.205.60
450.000.2010.00--
140.00------
100.00--------
12.00--
860.00
--61.75
OR EQUAL TO THOSE50 25
(MEDIAN)
10.25 0.8849.50 26.355.00 2.15
1090.00 880.0010.00 9.352.50 2.008.10 7.90
210.00 167.50--0.08 0.040.82 0.62
0.05 0.01--0.07 0.03--
480.00 370.00110.00 87.0050.00 38.5061.00 47.501.20 1.104.30 3.404.95 3.78
385.00 315.000.20 0.208.40 6.60--
110.00 97.50------
50.00 30.00--------4.00 3.00--
729.00 589.00
--34.00 12.75
SHOWN5
0.009.621.00
360.008.201.607.50
68.35--0.010.48
0.00--0.01--
136.0031.9013.6016.300.601.941.84
100.000.103.60--
43.50------10.00--------1.00--
215.60
--6.65
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
54575454545454545454545416
REGRESSION COEFFICIENT
-681*
.177
.457
.0988
.0514
.0679
.000864
.00368*.418.748*
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQ
KKKKKKKKKKQ
2,*
16014.6-6.423.15-3.71-9.27
.315
.505*
-47.2-36.5
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0 .33.80.89.92.89.92.94.90.76.10.92.94.43
0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0192.0001.0001.0055
STANDARD ERROR OFESTIMATE
*14720.644.911.14.925.78.0930.680*
40.864.1
*
42
Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, based on samples collected from October 2, 2974, to September 30, 2982--Continued
STATION NUMBER: 06323500 STATION NAME AND LOCATION: PINEY CREEK AT UCROSS, WYO.DRAINAGE AREA: 267 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
7067656866
16664
15664
611
58166
6464646464646464646417561717175817171717871
64
175
231090
331160
1229
280003
000090
48010056741
166
3700
146
1403
<20<20990274040
12000
232300769
2217
.00
.00
.00
.00
.80
.30
.15
.00
.04-78.30
.82
.18
.70
.02
.00
.90
.00
.00
.00
.00
.50
.00
.20
.00
.30
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.20
.00
0.0010.000.00
120.007.102.307.30
35.000.040.000.13
0.000.180.000.023.300.30
49.0012.003.904.900.301.101.00
20.000.102.70
<1.00<20.00<2.00
<20.00<20.00<10.00<2.00
<10.00<20.00<1.0018.001.00
2300.0077.00
<0.5011.00
10.52140.69
3.88581.6210.05----
161.11--0.080.67
0.13--0.05------
247.0056.0325.9232.630.874.612.60
151.800.178.05--------------------------
378.59
----
DEVIA- 95TION
8.22 22221.59 736
5.39 15238.95 1002
1.33 12__
858.24 260__0.11 00.50 1
0.15 0__0.10 0--__--
102.04 42521.85 9611.73 4616.65 620.30 12.59 81.10 4
86.09 3050.06 02.96 12
6104
3<20<20290274040
1------
167.45 686
2--
75EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.22
.40
.00
.00
.40-.60.00-.18.45
.40-.20----.00.25.75.50.37.07.65.00.30.75.00.50.00.00.00.00.00.00.00.00---.50
.20-
18.00127.004.10
747.5010.85--8.30
196.75--0.100.84
0.20--0.05----
--310.0072.0032.7542.751.105.783.40
220.000.2011.001.00
77.502.00
<20.00<20.00100.00
4.7520.0020.00<1.00------
488.00
<0.50--
12.0054.002.00
595.0010.20--8. 10
160.00--0.050.61
0.06--0.02----
--260.0058.5027.0031.500.904.202.40
140.000.207.80
<1.0060.00<2.00
<20.00<20.0065.003.50
<10.00<20.00<1.00------
392.00
<0.50--
1.0026.001.00
396.259.00--7.78
120.75--0.030.38
0.03--0.02----
--160.0038.0016.2521.000.702.951.83
93.750.105.35<1.0050.00<2.00
<20.00<20.0037.50<2.00
<10.00<20.00<1.00------
247.75
<0.50--
0.0015.601.00
199.007.73--7.47
62.00--0.010.17
0.01--0.01----
--72.7518.006.737.600.401.731.10
26.000.103.25
<1.00<20.00<2.00<20.00<20.00<10.00<2.00
<10.00<20.00<1.00------
106.50
<0.50--
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
576056565656565656565656
REGRESSION COEFFICIENT
**0.197.407.0867.0463.0662.00120.00705.00337.347.672
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQLOGQ
KKKKKKKKKK
*-'.
44.49.685.48-1.09-5.74
.183
.273
.559-48.1-12.7
COEFFICIENT OF DETERMINATION
(r 2 )
0.21.24.70.93.92.91.90.84.90.71.90.95
SIGNIFICANCE PROBABILITY
OF F
0 .0004.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
.V-t-
28.925.85.943.264.94.118.525.491
26.136.0
A3
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06324000 STATION NAME AND LOCATION: CLEAR CREEK NEAR ARVADA, WYO.DRAINAGE AREA: 1,110 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MECURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
2642506686813284835869
69207454
83838383838383838381167
16161918191619193
101
82
19197
2935405002200
1358
39003
13090
97023099
2003
1148
9300
152
9803
<207
701360202
9618
67001650
21670
.00
.00
.00
.00
.00
.60
.80
.00
.42
.30
.20
.60
.33
.20
.80
.00
.00
.00
.00
.20
.00
.00
.00
.80
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.40
.00
0.004.401.00
230.007.101.007.30
50.000.010.10
0.000.000.005.500.30
92.0023-007.609.600.401.601.80
60.000.100.00<1.0060.002.00
<20.00<2-00
<10.00<2.00
<10.00<20.00<1.0026.000.00
6700.00143.00
<0.507.00
7.91266.8525.59
1160.3510.132.53
198.770.090.80
0.260.330.05----
490.75109.5153.1878.141.494.875.67
444.770.426.54 -- ---- -- --4.70--
826.02
141.33
DEVIA- 95TION
8.36 23461.74 131664.71 91
387.25 18821.55 121.06 4
858.92 3160.08 00.50 1
0.29 00.81 30.05 0----
168.76 83236.94 18820.09 9337.14 1580.50 22.02 95.54 14
184.46 8300.14 03.76 13
1--
3<20
7701360202
--5.76 18
310.07 1495
2253.90 631
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.87
.00
.25
.50
.80
.69
.50
.00
.26
.65
.86
.46
.18--.00.00.60.00.48.00.80.00.70.00.00-.00.00.00.00.00.00.00.00-.00-.50
.40
.80
14.00194.2520.00
1357.5011.353.078.30
230.000.110.93
0.480.250.06----
590.00130.0064.0093.001.706.006.10
530.000.508.901.00--2.00
<20.004.00
40.005.00
40.00<20.00
1.25--7.25
987.75
<0.50108.00
4.25105.009.50
1130.0010.002.408.20
197.000.070.67
0.130.060.03 --
470.00110.0052.0073.001.404.504.40
420.000.406.50<1.00--
<2.00<20.00
3.0030.002.00
30.00<20.00
1.00--2.00
785.50
<0.5056.00
0.0076.005.00
957.508.851.758.00
160.000.040.57
0.050.000.02----
390.0088.0041.0054.001.203.703.60
340.000.303.45<1.00--
<2.00<20.00<2.0020.00<2.00
<10.00<20.00<1.00 0.75--
631.75
<0.5028.00
0.0028.551.35
347-007.711.007.60
80.600.010.22
0.010.000.01--
154.0037.2014.6018.200.701.901.90
94.800.200.95<1.00--
<2.00<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00--0.00--
227.20
<0.5017.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
59797373737373737373737221
REGRESSION COEFFICIENT
-672*
.113
.389
.0752
.0494
.0863
.00114**.445.729.505
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQLOGQ
KKKKKKKQKKQ
*2,500
65.038.320.9-3.69
-23.1.157**
-72.8-25.2
6.64
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.04.64.68.87.75.89.86.77.48.17.91.91.83
0 .116.0001.0001.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001
STANDARD ERROR OFESTIMATE
*22328.054.915.96.3212.4
.224**
52.382.261.4
44
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October I, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06324500 STATION NAME AND LOCATION: POWDER RIVER AT MOORHEAD, MONT.DRAINAGE AREA: 8,088 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT JAM- ^^
SIZE
TEMPERATURE (DEC C) 109STREAMFLOW, INSTANTANEOUS (FT3/S) 104TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MECURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
5391894390908090
861
87148
89898989898990898890132
87131315841513151486
88
1553
26.0012100.0033000.003490.00
13.206.208.80
370.000.36
52.00
2.200.029.5019.0011.00
930.00220.00110.00490.00
8.9017.00
350.001300.00
0.8020.001.00
70.00890.00
2.00<20.00<20.00250.0010.0030.00180.00
3.000.000.00
2510.00
4.0049700.00
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEAN
0.0020.007.00
730.004.000.407.50
84.000.000.14
0.000.020.013.900.50
190.0050.0016.0074.001.703.100.10
290.000.202.90<1.0035.0070.00<2.00
<20.00<20.00<10.00<2.00
<10.00<20.00<1.000.000.00
570.00
<0.5076.00
10.10795.751345.132072.36
9.372.33--
221.080.092.84
0.36--0.799.20--
571.35131.5358.99
254.394.586.90
149.92675.96
0.467.68----
312.87--------------------
1422.36
--4853.71
DEVIA- 95 TION
8.57 24.1662.20 3652.4568.35 4740.562.52 2998.
2.04 12.1.27 5.
8.58.16 339.0.07 0.6.07 10.
0.34 0.--1.40 2.4.23 19.__
142.51 825.31.63 190.16.58 87.88.00 420.1.22 6.2.00 11.
67.67 253.204.13 1045.
0.13 0.2.69 13.
1.__
136.30 606.2.
<20.<20.110.10.30.
180.3.
____
386.36 2173.
4.8886.92 27139.
25490000554660002484
74
9800
0000000070005000750000
000000000000000000
00
0088
75
18.00578.751100.002450.00
11.253.008.40
250.000.132.85
0.50--0.86
12.25--
665.00150.0069.00
305.005.307.60
190.00765.00
0.508.901.00--
350.00<2.00
<20.00<20.0040.003.0010.0020.002.00----
1627.50
<0.504965.00
WHICH VALUESTO THOSE
50 25 (MEDIAN)
9.00307.00300.00
2150.009.502.208.20
217.000.071.10
0.31--0.318.70--
570.00130.0060.00
260.004.606.50
160.00650.00
0.407.051.00--
300.00<2.00
<20.00<20.0030.002.00
<10.0020.002.00----
1430.00
<0.501720.00
0.183.50.
1700.7.1.7.
189.0.0.
0.--0.5.--
485.110.48.
195.3.5.
100.540.
0.6.1.--
230.<2.
<20.<20.<10.<2.
<10.<20.
1.----
1130.
<0.339.
50000000655090000467
17
0993
0000000090850000400000
000000000000000000
00
5000
SHOWN5
0.0058.0013.50
978.006.200.407.60
118.200.010.27
0.01--0.033.90--
315.0078.5029.0090.002.304.00
39.60350.00
0.304.16
<1.00--
140.00<2.00
<20.00<20.00<10.00<2.00
<10.00<20.00<1.00--
690.65
<0.50127.60
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE REGRESSION SIZE COEFFICIENT
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
50848483838383838384838239
***0.210.0450.0236.140.00178*.0906.319.647*
INDEPENDENT VARIABLE
LOGQLOGQLOGQ
KKKKKKKKK
LOGQ
REGRESSION CONSTANT
***
13438.09.76
-37.8.872*
-40.212.968.3
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.02.30.26.72.67.67.83.67.34.60.72.87.16
0 .342.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0130
STANDARD ERROR OF ESTIMATE
**
74.418.09.49
36.9.716*
42.0111141
*
45
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06324890 STATION NAME AND LOCATION: DRAINAGE AREA:
LITTLE POWDER RIVER BELOW CORRAL CREEK NEAR WESTON, WYO. 204 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02-»-N03 TOTAL (AS N)NITROGEN, N02-»-N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,
DISSOLVEDMECURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
46453
40351
3937
13132
271330282136363536353736363636129
371313143713171312228
3536
1244
2440225
59201638
400009
000
241
3300420600600
75626
39001
242
1002200
8<2036100110360207
160026
220005710
<01120
.00
.00
.00
.00
.80
.00
.51
.00
.07
.41
.70
.42
.41
.19
.00
.20
.00
.00
.00
.00
.30
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.011.00
1700.005.403.007.40
190.000.070.000.06
0.000.000.013.100.00
670.00130.0083.00100.00
1.303.005.10
690.000.401.70
<1.00<100.00280.00<2.00<20.00<20.00<10.00<29.0020.00<20.00<1.0020.000.000.00
1570.00
<0.506.00
7.6916.27--
2788.409.21----
292.05--0.080.96
0.070.080.0410.870.50
1375.28280.28168.29201.11
2.2733.2912.73
1483.330.7112.38----
1075.95----------
105.29----
287.50--
1447.742366.94
--78.52
DEVIA- 95TION
8.07 2264.34 133__
823.22 53352.25 13__
856.98 382__0.09 01.63 4
0. 10 00.12 00.04 04.17 200.32 1
467.53 270551.35 37796.25 464110.14 506
1.13 511.81 545.59 23
619.91 33050.14 06.69 23
2__
367.09 19308
<203692110
94.61 360207
368.21 1502--
3782.28 9199828.49 4893
<0166.57 183
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.60
.70-.00.44-.40.00-.35.50
.37
.41
.15
.40
.19
.00
.50
.00
.50
.14
.20
.45
.00
.91
.15
.00-.00.00.00.00.00.00.00.00.00.49-.94.99
.50
.75
15.376.41--
3020.0010.40--8.00
335.00--0.080.85
0.060.130.0513.000.65
1500.00310.00190.00220.00
2.5039.5016.75
1575.000.8020.001.00--
1200.00<2.00
<20.00<20.0050.00<29.00170.0020.002.00
335.00--
1200.002485.00
<0.5077.00
4.000.56--
2600.008.90--7.90
290.00--0.050.68
0.010.050.0311.000.40
1300.00285.00150.00170.002.00
34.0011.00
1300.000.7011.001.00--
1100.00<2.00
<20.00<20.0040.00<29.0060.00
<20.001.00
150.00--
370.002200.00
<0.5048.50
0.000.23--
2278.757.90 7.60
246.50--0.020.50
0.010.000.028. 180.30
1125.00250.00120.00130.00
1.6029.508.38
1125.000.638.351.00--
865.00<2.00
<20.00<20.0030.00<29.0040.00
<20.00<1.0089.00--
90.001902.50
<0.5020.00
0.000.02--
1952.005.48--7.40
199.00--0.010. 16
0.000.000.013.820.01
695.50181.0090.20108.50
1.466.516.04
902.500.401.87
<1.00--
469.00<2.00
<20.00<20.00<10.00<29.0020.00
<20.00<1.0026.00--
16.001604.00
<0.509.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
393635353435343635353534
REGRESSION COEFFICIENT
*-t-
0.468*.114.113
..«_
*-,v
.712
.967*
INDEPENDENT VARIABLE
QKKKKKKKKKKQ
REGRESSION CONSTANT
**
44.3*
-152-120
**iV
-542-382
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.15.22.69.16.93.74.23.08.25.91.95.02
0 .0132.0037.0001.0190.0001.0001.0041.106.0025.0001.0001.475
STANDARD ERROR OF ESTIMATE
* /v
265-V
25.557.8
/'?
186190
~v
46
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 2981--Continued
STATION NUMBER: 06324925 STATION NAME AND LOCATION: LITTLE POWDER RIVER NEAR WESTON, WYO. DRAINAGE AREA: 540 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUM SIZE
67648
58501
54542
4344
3815431
362952525251515352525151191353192021531927201927104846
1957
29425035005400
1438
77000
15
1010
259
20004003301100
154964
28000
172
3001800
4<20<2518040
480327
32000045
88004450
09130
.00
.00
.00
.00
.50
.10
.80
.00
.02
.39
.00
.00
.93
.40
.01
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.90
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.70
.00
MINIMUM MEAN
0.000.009.00
350.005.003.107.00
57.000.010.010.39
0.000.000.000.010.500.10
59.0014.005.9039.001.705.801.50
100.000.101.20
<1.00<100.00
70.00<2.00
<20.00<25.00<10.00<29.000.00
<20.00<1.0021.000.000.00
222.00
<0.5048.00
9.91151.12
--2955.78
9.64----
391.68 0.061.25
0.090.100.09--
12.191.52
737.81137.6295.95
474.437.71
18.0313.75
1341.920.538.01----
321.70----------
121.89--
12189.899.10
1364.652334.17
--653.63
STANDARD DEVIA TION
8.93632.90
--1328.29
2.16--
191.90--0.092.22
0.180.240.22--5.162.12
424.1872.7863.89
263.763.599.8410.49
703.240.184.14----
361.34 --------
113.76--
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95
24.501515.73
--4858.49
13.13--8.50
730.00 0.354.02
0.500.930.42
23.308.35
1805.00280.00229.00910.0014.0046.6037.00
2600.000.8416.402.00
300.001449.99
4.00<20.00<25.00113.0040.00
440.0032.007.00
6159.09193037.0613.89
1841.801192.50
--1584.30
45.005924.984256.00
0.704720.98
75
18.0017.75--
3950.0011.33--8.30
500.00--0.051.00
0.050.090.06
15.001.55
940.00180.00120.00660.0011.0020.0016.00
1800.000.7010.001.00
100.00320.00<2.00
<20.00<25.0050.00<29.00160.0020.001.00
400.0011.00
1375.003172.50
<0.50364.00
50 (MEDIAN)
9.001.45--
3125.009.55--8.15
405.00 0.040.79
0.020.020.04--
11.500.70
750.00135.00100.00480.00
7.7017.0013.00
1450.000.607.401.00
<100.00220.00<2.00
<20.00<25.0030.00
<29.0090.00<20.00<1.00160.004.00
640.002565.00
<0.50153.00
25
0.500.32--
1950.008.00--7.98
255.00--0.020.60
0.010.000.02 8.730.55
502.5083.7550.25
260.004.9011.507.15
717.500.405.601.00
<100.00165.00<2.00
<20.00<25.0020.00<29.0060.00<20.00<1.0087.001.50
217.501255.00
<0.5091.50
5
0.000.01--
462.556.30--7.45
59.25--0.010.40
0.010.000.01--2.790.15
101.9522.2511.1651.001.986.112.97
149.000.201.46
<1.00<100.0087.00<2.00
<20.00<25.00<10.00<29.000.80
<20 . 00<1.0025.800.0037.70
271.10
<0.5057.20
47
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06324925 STATION NAME AND LOCATION: LITTLE POWDER RIVER NEAR WESTON, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE SIZE
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
555048484847474948484247
REGRESSION INDEPENDENT REGRESSION COEFFICIENT VARIABLE CONSTANT
*0.126.235.0366.0348.180.00204* n
.497
.828*
LOGQKKKKKKKKKKK
*19.029.526.1-8.41
-60.31.67*U
*-148-138
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.27.82.57.50.54.87.60.28.32.91.98.29
0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*84.0
28451.744.998.82.32
»»_
*218168
*
Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06324970 STATION NAME AND LOCATION: LITTLE POWDER RIVER ABOVE DRY CREEK NEAR WESTON, WYO. DRAINAGE AREA: 1,235 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02 + N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL (COLS./ 100 ML)STREPTOCOCCI FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,
(DISSOLVED)MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE SIZE
179186108125112
5121120
5100105
8418
1072018
120119120119119120120120120120326
117323234
1163140323248
1375
120
32117
MAXIMUM
30.004210.005500.005500.00
14.203.208.80
600.000.020.7211.00
1.400.521.60
30.002.80
1500.00320.00200.00770.0012.0043.00
580.002400.00
2.4020.003.00
100.001200.00
5.00<20.0035.00
1100.0029.00
510.0040.003.00
780.00380.0034.00
81000.003910.00
<0.5013100.00
MINIMUM
0.000.001.00
690.005.502.607.50
77.000.010.010.21
0.000.000.003.800.10
41.0036.0010.0078.002.204.903.50
240.000.202.00
<1.0010.002.00
<2.00<20.00<10.00<10.00<15.00<10.00<20.00<1.0022.0026.000.0082.00
440 . 00
<0.508.00
MEAN
11.7963.66309.12
2827.839.23----
316.99--0.081.51
0.120.120.1113.470.89
798.59157.3398.85384.76
5.8819.0216.61
1272.830.628.44----
284.89-------- ------ --7.23
6188.022145.67
--1061.14
STANDARD DEVIA TION
8.64356.601014.581056.64
1.99----
110.21--0.091.98
0.200.170.246.280.80
336.8260.5244.53153.45
1.766.67
52.11531.97
0.243.33----
226.37---------------- --9.74
10930.70807.58
--2696.42
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95
25.50191.95
3049.984447.00
13.07--8.70
500.00--0.206.96
0.460.520.6329.602.80
1300.00260.00170.00630.00
8.7032.0023.95
2095.001.00
14.953.00--
831.005.00
<20.0034.70
218.0029.00
316.0040.003.00----
34.0019399.953286.50
<0.508873.99
75
198
633550
10-8
379-01
000171
1000200130490
72215
17000101-
2753
<20<1068
<15160201--
1165992775
<0225
.50
.65
.75
.00
.60-.30.75-.10.30
.15
.20
.07
.25
.48
.00
.00
.00
.00
.10
.00
.00
.00
.70
.00
.00-.00.00.00.00.00.00.00.00.00--.00.99.00
.50
.00
50 (MEDIAN)
12.003.20
35.003000.00
8.85--8.10
340.00--0.050.83
0.050.030.0513.000.55
785.00150.0097.00400.00
5.6018.0011.00
1300.000.608.001.00--
210.00<2.00
<20.00<10.0030.00
<15.00100.00<20.00
1.00----4.00
3700.002260.00
<0.50166.00
25
3.500.6410.00
2165.007.70--7.90
262.00--0.030.62
0.020.020.028.700.38
542.50110.0061.75280.005.0015.258.40
820.000.505.93<1.00--
170.00<2.00
<20.00<10.0020.00<15.0055.00
<20.001.00----1.00
1200.001590.00
<0.5084.00
5
0.000.024.00
907.506.27--7.60
110.00--0.010.41
0.010.000.013.910.10
210.5055.0019.0093.002.709.413.91
330.000.403.70
<1.00
99.00<2.00
<20.00<10.00<10.00<15.00<10.00<20.00<1.00----0.00
206.00591.00
<0.5031.30
49
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October I, 1974, to September 30, 1981 Continued
STATION NUMBER: 06324970 STATION NAME AND LOCATION: LITTLE POWDER RIVER ABOVE DRY CREEK NEAR WESTON, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE SIZE
REGRESSION INDEPENDENT REGRESSION COEFFICIENT VARIABLE CONSTANT
COEFFICIENT OF DETERMINATION
(r 2 )
SIGNIFICANCE STANDARDPROBABILITY ERROR OF
OF F ESTIMATE
TURBIDITY (NTU) 103 * KSPECIFIC CONDUCTANCE (MICROSIEMENS) 122 * LOGQALKALINITY (AS CAC03) 116 0.0809 KHARDNESS (AS CAC03) 116 .260 KCALCIUM, DISSOLVED 115 .0502 KMAGNESIUM, DISSOLVED 116 .0348 KSODIUM, DISSOLVED 115 .141 KSODIUM ADSORPTION RATIO 115 .00130 KPOTASSIUM, DISSOLVED 116 * KCHLORIDE, DISSOLVED 116 * KSULFATE, DISSOLVED 116 .471 KSOLIDS, SUM OF CONSTITUENTS, DISSOLVED 116 .747 KSEDIMENT, SUSPENDED 57 * K
*91.1 67.8 16.8 1.08
-6.34 2.28**
-46.9 52.7
*
0.26 .13 .56 .63 .72 .64 .86 .55. .37 .05 .82 .89 .39
0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0162.0001.0001.0001
74.820632.326.960.01.19
231269
50
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06364700 STATION NAME AND LOCATION: ANTELOPE CREEK NEAR TECKLA, WYO. DRAINAGE AREA: 959 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICS PERCENT OF SAMPLES INSAM- STANDARD WERE LESS THANPLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
5251
1474546463438
321635373445454545454545454545131144111315441219131319124445
1350
30805
2700118
44001
000
763
1200300110280
42131
12001
231
300540
52036
34033
79030
170026
200002120
01130
.00 0.
.00 0.
.00 5.
.00 435.
.70 5.
.30 7.
.00 56.
.13 0.
.50 0.
.29 0.
.11 0.
.30 0.
.00 5.
.00 0.
.00 140.
.00 33.
.00 13.
.00 28.
.00 1.
.00 5.
.00 3.
.00 150.
.10 0.
.00 4.
.00 <1.
.00 <100.
.00 50.
.00 <2.
.00 <20.
.00 <10.
.00 <10.
.00 <2.
.00 <10.
.00 <20.
.00 <1.
.00 20.
.00 1.
.00 39.
.00 272.
.40 <0 .
.00 5.
000200006030000016
000000201000000000005070002070000000000000000000000000000000
1000
12.527.33--
2156.818.68--
325.560.050.54
0.040.020.0411.980.49
910.22224.5684.60187.892.7114.4415.48
942.670.5615.74----
198.41---- ------
120.267.58
2013.501683.84
--111.68
DEVIA- 95TION
9.39 2714.60 37__
427.34 26381.71 11
891.73 4230.03 00.31 1
0.05 00.03 00.07 012.74 410.53 1
221.15 117051.21 28024.24 11042.96 2370.50 33.70 206.29 28
209.10 12000.17 05.36 23
1300
103.61 3975
2036
25833
79030
1173.07 700
8.13 264271.97 16474362.70 2087
0177.35 411
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.50
.00-.00.57.27.00.11.40
.16
.11
.28
.80
.65
.00
.00
.00
.00
.82
.40
.50
.00
.80
.00
.00
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.85
.00
.40
.85
19.756.50--
2440.0010.458.10
390.000.080.66
0.040.030.0313.000.63
1050.00255.00100.00220.00
3.0017.0019.50
1100.000.70
20.001.00
100.00240.00
2.00<20.00<10.0050.0012.50
680.0020.00<1.00120.0012.50
1400.001905.00
0.20112.75
13.750.32
2240.008.608.00
375.000.040.49
0.020.010.017.800.35
980.00240.0096.00
200.002.7015.0016.00
980.000.5017.001.00
<100.00220.00<2.00
<20.00<10.0030.002.50
415.00<20.00<1.0044.004.00
595.001790.00
<0.1055.50
3.000.15--
2120.007.407.80
250.000.020.33
0.010.000.016.400.20
820.00210.0073.50170.002.4012.0010.50
860.000.5011.00<1.00
<100.00110.00<2.00
<20.00<10.0020.00<2.0020.00
<20.00<1.0039.002.25
185.001595.00
<0.1034.25
0.330.03--
1090.006.107.40
131.000.000.22
0.000.000.005.470.10
387.0099.4019.5089.901.967.486.62
433.000.306.08<1.00
<100.0060.00<2.00
<20.00<10.00<10.00<2.00
<10.00<20.00<1.0020.001.00
58.00779.70
<0.1015.65
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
464645454545454545454544
REGRESSION COEFFICIENT
-34.8-90.0
.476
.113
.0466
.0907*
-3.21*.468.834
8.19
INDEPENDENT VARIABLE
QLOGQ
KKKKK
LOGQKKKQ
REGRESSION CONSTANT
2,320308
-112-18.5-15.4-6.74*
13.9*
-60.6-106
45.6
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.65.80.85.90.68.82.36.63.16.92.97.68
0 .0001.0001.0001.0001.0001.0001.0001.0001.0065.0001.0001.0001
STANDARD ERROR OF ESTIMATE
25541.485.616.313.918.4*2.27*
59.759.054.8
51
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1961--Continued
STATION NUMBER: 06365300 STATION NAME AND LOCATION: DRY FORK CHEYENNE RIVER NEAR BILL, WYO. DRAINAGE AREA: 128 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
54703131302827323030
301
31313231313032323232326
31666
32676715
30
638
25870320
26001378
62002
000
1700370190120
12373
15000
292
3005
<2012
120046
510602
15018
2450
115300
.00
.00
.00
.00
.20
.00
.20
.00
.20
.10
.41
.00
.15
.00
.00
.00
.00
.40
.00
.00
.00
.70
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.0.1.
630.6.0.6.
110.0.0.
0.0.0.
260.71.20.27.0.9.5.
110.0.0.1.
90.<1.
<20.<10,20,
<10,8.
<20.<1.
150.1.
679,
<0,4,
00000000606080000045
00000000000000,5010,30,0010,50.00,00,00,00,00,00.00,00.00.00.00.00.00
.50
.00
8.4414.8816.11
1768.399.482.53--
324.060.060.84
0.04--0.04
942.58210.34103.6873.551.02
13.9218.12
731.250.5012.28--
150.97------
121.25------------
1375.43
--1458.74
DEVIA- 95TION
7.80 24.12104.04 18.8056.71 144.20463.06 2600.00
1.59 12.651.87 6.86
8.1699.06 516.000.04 0.170.38 1.93
0.08 0.25--0.03 0.11
303.04 1580.0066.63 357.0036.78 184.0022.28 114.000.22 1.403.42 21.7012.59 49.60
316.68 1435.000.13 0.705.46 23.80--
42.61 252.00------
207.95 640.99------------
417.89 2246.50
__3576.76 10198.43
75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
13.500.839.00
2140.0010.603.778.00
367.500.090.98
0.05--0.05
1100.00255.00120.0090.001.20
16.0023.00
945.000.6016.00--
170.00------
120.00------------
1600.00
--167.25
8.000.163.00
1800.009.801.607.80
325.000.060.76
0.03--0.03
900.00200.0096.0073.001.00
13.0015.50
670.000.5011.50--
150.00------
70.00------------
1290.00
--47.00
1.000.042.00
1460.008.071.207.60
280.000.040.58
0.00--0.02
770.00165.0082.0058.000.8811.0011.25
525.000.509.28--
130.00------
40.00------------
1095.00
--25.00
0.000.001.00
852.006.870.737.04
116.500.000.46
0.00--0.01
410.0096.3535.0033.600.619.495.30
201.000.173.16--
90.00------
20.00------------
752.70
--8.75
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
31313130313030293131312914
REGRESSION ] COEFFICIENT
***0.617.135.0704.0415***.597.918*
[NDEPENDE1 VARIABLE
KQKKKKKKKKKKQ
JT RFrRFSSTON COEFFICIENT OF SIGNIFICANCErnwcTAWT DETERMINATION PROBABILITY CONSTANT (f2) QF F
***
-152-29.3-22.3-2.90***
-345-294
*
0.22.00.23.91.86.89.69.32.26.09.86.91.09
0 .0073.741.0066.0001.0001.0001.0001.0013.0033.0999.0001.0001.302
STANDARD ERROR OF ESTIMATE
***
93.725.911.411.8***
111127
*
52
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1982--Continued
STATION NUMBER: 06365900 STATION NAME AND LOCATION: CHEYENNE RIVER NEAR DULL CENTER, WYO. DRAINAGE AREA: 1,527 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE SIZE
94854571663769652
5455
501755161464646464646464646464156
6315151763142115159132264
1549
MAXIMUM
31.002030.001300.003800.00
12.005.608.70
527.000.030.572.20
0.800.080.60
41.001.40
1800.00400.00200.00500.00
5.1028.0042.00
2300.000.80
24.002.00
300.00270.00
5.0020.0036.00
540.0024.00
1100.0030.001.00
490.0013.00
9200.003810.00
1.5021500.00
MINIMUM
0.000.001.00
650.006.101.207.30
62.000.010.000.05
0.000.000.006.200.10
170.0041.0013.0045.001.501.704.40
190.000.002.70
<1.00<100.0050.00<2.00
<20.00<10.00<10.00<2.005.00
<20.00<1.0021.000.00
51.00348.00
<0.5013.00
MEAN
13.61.
109.2694.
9.2.--
262.--0.0.
0.0.0.
11.0.
1040.242.103.271.
3.15.23.
1281.0.
12.----
114.----------
316.------5.
2063.2109.
--1348.
984640080999
28
0976
060206933962914422614030874859
76
10
002319
24
STANDARD DEVIA TION
9289273779
11-
77-00
00080
345753895058
45103--
36-----
273---3
2564707
-3807
.35
.25
.50
.83
.51
.04-.32-.09.46
.11
.02
.10
.37
.36
.24
.72
.08
.28
.79
.05
.28
.61
.12
.68--.14-----.11---.56.72.19
-.04
PERCENT OF SAMPLES IN WERE LESS THAN OR EQUAL95
28.12237.40985.003585.00
11.705.068.40
384.00--0.232.04
0.160.080.29
41.001.40
1500.00357.50150.00400.00
4.6523.0038.00
1900.000.6018.002.00--
188.005.0020.0036.00176.0024.00
1063.0030.001.00--13.00
8854.983047.50
1.5010114.97
75
21.2510.0065.00
3200.009.983.758.20
300.00--0.110.90
0.060.030.0611.000.55
1200.00290.00130.00327.50
4.1018.7528.00
1600.000.6015.001.00--
130.002.00
<20.00<10.0060.007.50
490.0030.00<1.00--7.00
3600.002530.00
<0.50245.50
50 (MEDIAN)
15.000.2620.00
3000.009.002.908.10
273.00--0.070.69
0.040.010.049.850.30
1100.00250.00110.00290.00
3.8516.0024.00
1400.000.5012.001.00--
110.00<2.00
<20.00<10.0040.002.00
240.00<20.00<1.00--5.00
975.002260.00
<0.5079.00
WHICH VALUES TO THOSE SHOWN
25
4.750.124.00
2200.008.152.157.90
220.00--0.030.48
0.010.000.017.580.10
815.00210.0076.25
202.503.2013.0018.50
960.000.4010.25<1.00--
90.00<2.00
<20.00<10.0020.00<2.00120.00<20.00<1.00--2.50
297.501645.00
<0.5033.00
5
0.000.041.12
910.006.301.207.40
103.00--0.000.19
0.000.000.006.200.10
325.0080.0026.7574.751.907.357.20
345.000.306.55<1.00--
60.00<2.00
<20.00<10.00<10.00<2.006.80
<20.00<1.00--0.00
64.35627.75
<0.5014.00
53
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 2982--Continued
STATION NUMBER: 06365900 STATION NAME AND LOCATION: CHEYENNE RIVER NEAR DULL CENTER, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE SIZE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
35615958585858585858585822
rOFFFTCTFNT OF REGRESSION INDEPENDENT REGRESSION nFTFRMTWATTnw COEFFICIENT VARIABLE CONSTANT utitKniWAHUN
**0.0813.425.0921.0459.117.000954
_'_
.00889
.547
.866-.272
QLOGQ
KKKKKKKKKKK
47-79
-17-37
1
-160-175871
*.4.1.0589.2.8.08
if
.294
0.46.45.68.93.91.89.93.92.40.77.90.93.61
SIGNIFICANCE PROBABILITY
OF F
0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
V;
45.94.24.13.26.
-.';
4.146203142
78130239
05
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06375600 STATION NAME AND LOCATION: LITTLE THUNDER CREEK NEAR HAMPSHIRE, WYO. DRAINAGE AREA: 234 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
4142
1332532302324
18102524192829282828282929292997
2899
10289
1399
137
2827
741
2617815
7500138
55014
000
304
1000180140750102544
22000
102
200220
22033
31016
26030
16800
5210003660
03790
.00
.00
.00
.00
.80
.50
.00
.80
.10
.33
.68
.49
.00
.40
.00
.00
.00
.00
.00
.00
.00
.00
.90
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.70
.00
0.000.0015.00
240.006.007.40
40.000.010.47
0.010.000.015.700.20
95.0022.009.7015.000.703.002.00
82.000.100.10<1.00
<100.0050.00<2.00
<20.00<20.00<10.00<10.00<10.00<20.00<1.0044.001.00
110.00167.00
<0.1017.00
11.1110.99--
2049.309.60--
228.370.211.15
0.090.110.1313.391.27
468.0493.3458.85
280.075.1512.9414.74
771.450.484.49----
123.21--__--____--__--
956.92__
2880.361403.41
__750.56
DEVIA- 95TION
8.66 2532.05 92--
1504.68 52772.24 13
8131.71 4620.45 10.81 3
0.10 00.20 00.14 04.88 271.20 4
245.23 94643.62 17534.65 126
207.26 6642.83 95.01 2312.17 44
555.29 18990.17 02.30 8____
45.95 215____
33297
__260
__--
1870.98 6800__
4284.33 15869928.80 3275
__1121.35 3118
75 50TO THOSE
25SHOWN
5(MEDIAN)
.35
.65-.46.56.44.00.72.80
.33
.68
.48
.00
.40
.00
.00
.50
.50
.59
.65
.00
.99
.85
.85--.50--.00.00-.00--.00-.86.99
-.00
19.255.27--
2915.0011.708.20
342.500.131.28
0.120.120.1515.751.50
670.00125.0089.00
485.008.1315.7520.00
1250.000.606.20----
150.00----
<20.0050.00--
130.00----
1140.00--
3475.002150.00
--1063.00
12.000.26--
1800.009.608.10
210.000.070.90
0.050.060.0814.001.00
455.0096.0056.50240.00
5.1513.5011.00
680.000.404.80----
110.00----
<20.0035.00--
90.00----
230.00--
1250.001320.00
--148.00
2.000.04--
832.507.907.63
107.500.050.68
0.020.000.039.030.50
247.5054.5027.7593.502.659.635.90
280.000.402.50----
90.00----
<20.0020.00--
40.00----
80.00--
530.00535.00
--71.00
0.000.00--
262.406.037.40
43.850.010.47
0.010.000.016.050.20
115.2526.5012.5423.100.924.223.00
96.000.200.80----
54.50----
<20.00<10.00
--<10.00
----
44.00--
137.00201.40
--23.40
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
302826272626262627272526
REGRESSION COEFFICIENT
*
-,
*
J_
**
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQKKKK
LOGQLOGQ
QLOGQ
KKK
*
***** ! _u
*
*
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.24.34.27.15.27.36.47.14.08.31.30.11
0 .0061.0011.0068.0455.0063.0012.0001.0624.151.0024.0043.103
STANDARD ERROR OF ESTIMATE
55
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06378300 STATION NAME AND LOCATION: LODGEPOLE CREEK NEAR HAMPSHIRE, WYO. DRAINAGE AREA: 354 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER; DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
3031
1272025242323
181023232125242424242425252525108
259910247
119
10147
2425
731
23501330
5000139
140004
000
697
2703941
1200381433
160019
1020029011
<2070
5003
14070<1
130006
410003760
0713
.00
.00
.00
.00
.60
.10
.00
.32
.00
.11
.34
.41
.00
.40
.00
.00
.00
.00
.00
.00
.00
.00
.30
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.00
330.00695.00
1.008.00
200.000.000.88
0.010.000.056.300.400.009.805.10
130.006.303.103.60
140.000.200.101.00
<100.0050.00<3.00
<20.00<25.0020.00<3.00
<10.00<20.00<1.0050.001.00
280.00431.00
<0.1019.00
10.8321.89--
2788.339.22--
689.170.101.71
0.030.050.15
21.402.97
124.4422.2417.83
625.4223.387.27
16.65767.20
0.553.183.00--
122.00------
161.67--------
1287.71--
10376.251846.52
208.10
DEVIA- 95TION
7.98 2293.42 296-_
1284.47 49843.06 13
9305.48 1332
0.08 00.72 3
0.03 00.10 00.09 014.72 632.42 7
53.38 2496.38 378.31 38
311.41 11759.04 363.12 148.50 32
428.88 16000.27 12.21 82.62 10_-
57.37 275----
70114.35 462
--140
--<1
3396.46 13000--
12375.68 40499922.94 3640
-_182.20 633
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.72
.40-.00.59.07.50.30.76
.11
.34
.39
.40
.39
.00
.00
.75
.00
.50
.00
.10
.00
.24
.34
.00-.00--.00.50-.00-.00.00-.97.00
-.20
18.250.82--
3740.0011.508.80
895.000.132.20
0.050.040.17
27.004.30
150.0026.5021.00
875.0030.758.13
25.001150.00
0.704.353.25--
145.00----
<25.00227.50
--70.00--
<1.00630.00
15500.002630.00
--245.00
10.250.10--
2800.009.908.60
755.000.081.60
0.020.010.1318.002.20
120.0023.0017.50
630.0026.506.1016.00
730.000.503.002.00--
110.00----
<25.00145.00
--40.00--
<1.00240.00
4450.001780.00
134.00
1.000.04--
1750.007.608.40
422.500.051.20
0.010.010.1011.000.85
85.5017.2513.25
355.0015.005.639.60
405.000.401.301.75--
90.00----
<25.0075.00--10.00--
<1.00125.00
--1975.001116.00
--96.00
0.000.00--
775.001.238.00
210.000.000.90
0.010.000.056.340.4113.8010.355.35
140.006.973.254.38
152.000.200. 191.00--
53.00----
<25.0020.00
<10.00--
<1.0050.00
347.50467.60
24.40
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
262425242424242425252524
REGRESSION COEFFICIENT
*0.232.0309*.00606.243.00675*.00566.327.720*
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQKK
LOGQKKKKKKKQ
*47.539.7*1.27
-39.14.94*1.15
-128-128
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.30.92.52.29.85.98.89.42.68.89.94.14
0 .0036.0001.0001.0067.0001.0001.0001.0006.0001.0001.0001.0668
STANDARD ERROR OF ESTIMATE
J-
88.437.9--3.29
48.83.01*4.91
145240
*
56
Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, jbased on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 06386000 STATION NAME AND LOCATION: LANCE CREEK NEAR RIVERVIEW, WYO.DRAINAGE AREA: 2,070 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
921015862595658615861
571
5822
616161616161616161618
61888
618888
1161
951
352830120007500
1378
4200
20
304
100
15003701509001018
1703000
0202
3004
<2015
66059
620801
114680
<014800
.00 0.
.00 0.
.00 1.
.00 540.
.00 5.
.00 0.
.30 7.
.00 68.
.71 0.
.00 0.
.30 0.
.04 0.
.10 0.
.00 6.
.40 0.
.00 160.
.00 44.
.00 12.
.00 43.
.00 1.
.00 6.
.00 9.
.00 180.
.90 0.
.00 5.
.00 <1.
.00 <20.
.00 <2.
.00 <20.
.00 <2.
.00 <10.
.00 <10.
.00 100.
.00 <20.
.00 <1.
.00 0.
.00 347.
.50 <0.
.00 6.
00000000907030000026
000400804000000000403090004090000000000000000000000000
5050
13.09135.64458.85
3336.619.202.46
288.950.081.62
0.16--0.21----
836.23206.9376.57
495.027.2713.18
104.851439.67
0.5613.17------------------ 3.09
2523.72
--1771.93
STANDARD DEVIATION
9.99399.331831.941369.86
1.821.42--
76.380.103.57
0.45--0.71----
317.8575.4730.69194.24
1.972.86
36.91632.89
0.123.16--------------------3.21
984.27
--3669.61
PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN95 75
OR EQUAL TO THOSE50 25
SHOWN5
(MEDIAN)
29.70975.70
4574.985455.00
12.305.598.30
399.000.228.30
0.83--1.87--
1400.00338.00130.00804.00
9.9518.00
168.002500.00
0.8018.00
280.00-- --
433.50--------11.00
4124.00
--11879.97
20.3826.5067.50
4000.0010.503.208.10
340.000.101.00
0.10--0.05----
980.00240.0095.00
635.008.6015.00
130.001850.00
0.6016.00
210.00------
110.00------ 5.00
3170.00
--409.00
13.254.5010.00
3380.009.102.308.00
290.000.070.73
0.06--0.03 --
840.00200.0077.00
530.007.8013.00
110.001500.00
0.5013.00--
190.00
51.00---- --2.00
2550.00
--117.00
2.750.284.98
2507.507.801.427.70
255.000.040.60
0.02--0.02----
655.00160.0056.00380.00
6.4511.0091.50
990.000.5010.50
150.00----
30.00--------1.00
1900.00
--48.00
0.000.001.70
611.006.300.787.39
132.000.010.43
0.00--0.01 --
272.0072.5022.20100.102.627.93
24.30293.00
0.408.62
120.00-- --
11.00---- 0.00
635.90
--17.60
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
55595858585858585858585822
REGRESSION COEFFICIENT
8.46-854
.0551
.220
.0510
.0214
.144
.00145-V
*.443.714
13.0
INDEPENDENT REPRESSION COEFFICIENT OF SIGNIFICANCE INDEPENDENT REGRESSION D£TE^NATION PROBABJLITY
QLOGQ
KKKKKKKKKKQ
833,620
10995354
122
-53124372
.5
.8
.0
.53
.7
.48-J-
*.8
0.66.52.74.76.72.79.85.79.26.38.80.84.80
0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
1,10087240.115038.813.673.2
.922*'-
*269386
1,650
57
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, I98I--Continued
STATION NUMBER: 06386500 STATION NAME AND LOCATION: CHEYENNE RIVER NEAR RIVERVIEW, WYO. DRAINAGE AREA: 5,270 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA '+ ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PHENOLS (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)
424542414238413939
413656
414141414141414141411441141414411414141447
41
14
30208
40006500
128
4200
20
0181
1800420180
12001216
1503600
0172
3904
<20<20
100020
2300402
4809
5810
<0
.00
.00
.00
.00
.50
.50
.00
.84
.00
.88
.90
.70
.80
.00
.00
.00
.00
.00
.00
.00
.00
.70
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
0.000.001.00
560.006.407.50
82.000.000.17
0.000.007.100.30
110.0029.0010.0050.001.705.307.00
160.000.403.60<1.0080.00<2.00
<20.00<20.00<10.00<2.00
<10.00<20.00<1.0080.000.00
333.00
<0.50
14.8919.63
272.073390.00
9.09--
258.900.131.90
0.150.22----
807.56194.4978.71
507.417.3912.0675.26
1507.070.579.94--
211.22---------- -- --
2541.07
--
STANDARD DEVIATION
8.7345.91773.49
1498.111.59--
80.580.143.51
0.190.49 --
404.2593.1742.95
279.622.582.6935.26
877.160.113.07
83.76--------------------
1356.77
--
PERCENT OF SAMPLES INWERE LESS THAN95 75
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
27.77170.00
2700.006159.00
11.758.40
412.300.418.90
0.671.73----
1600.00389.00169.00
1090.0011.9015.90
129.003400.00
0.7015.002.00
380.004.00
<20.00<20.00270.0020.00
2300.0040.002.00----
5324.00
<0.50
22.0014.50
111.004550.00
10.658.23
300.000.151.10
0.250.09----
1045.00245.00105.00660.00
9.4014.0097.00
1950.000.6512.001.00
240.002.25
<20.00<20.0080.003.00
395.0020.001.00--
3245.00
<0.50
17.252.508.25
3300.008.908.10
260.000.110.86
0.070.05----
740.00180.0076.00
480.007.6013.0080.00
1400.000.6010.00<1.00
200.00<2.00
<20.00<20.0040.002.00
170.00<20.00<1.00 --
2370.00
<0.50
8.130.003.00
2300.007.708.00
218.000.060.67
0.020.02--
515.00130.0048.50
280.005.4510.5049.00
795.000.507.60
<1.00170.00<2.00
<20.00<20.0025.00<2.0045.00<20.00<1.00 --
1470.00
<0.50
0.000.001.00
911.006.547.60
86.800.000.28
0.000.01----
166.0040.7015.5067.602.606.059.75
196.000.405.32<1.0090.00<2.00
<20.00<20.00<10.00<2.00
<10.00<20.00<1.00----
383.60
<0.50REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
252525252525252525252525
REGRESSION ] COEFFICIENT
***JL
*
JL
*
*
*
JL
*
*
[NDEPENDE1 VARIABLE
QQK
LOGQLOGQLOGQ
KKQK
LOGQLOGQ
COEFFICIENT OF SIGNIFICANCErnSSlxTT DETERMINATION PROBABILITY CONSTANT (r2) QF F
*« ** £
JU
*
*
*
*
*
*
0.27.01.19.31.28.32.33.28.12.21.35.31
0 .0075.647.0288.0039.0066.0031.0028.0070.0835.0209.0020.0036
STANDARD ERROR OF ESTIMATE
*~>\* ;V
*.1.
*"k
*~k
*
"
58
Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06425720 STATION NAME AND LOCATION: BELLE FOURCHE RIVER BELOW RATTLESNAKE CREEK NEAR PINEY, WYO. DRAINAGE AREA: 495 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVED (MG/L)OXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,
DISSOLVEDMERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
52813535332531293
2529
274
2922
2929292929292929292972
29777
29777753
29
728
281060
258000
1358
400002
000
150
35005305301200
84555
5400092
10081010
<207
4105
800402
20490007870
<0927
.50
.00
.00
.00
.80
.80
.40
.00
.07
.32
.70
.20
.05
.16
.00
.70
.00
.00
.00
.00
.80
.00
.00
.00
.90
.40
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.002.00
1100.006.301.207.20
90.000.010.010.43
0.010.000.0111.000.60
380.0095.0035.00
100.002.206.404.10
510.000.200.20<1.0050.0060.00<1.00
<20.00<2.00
<10.00<2.00120.00
4.00<1.000.00
210.00809.00
<0.5020.00
12.7316.279.32
4156.579.792.87--
236.83--0.081.05
0.06--0.06----
1483.45286.45187.62434.14
4.7316.8322.81
2121.380.474.28----
162.07--------------------
3216.17
--108.82
DEVIA- 95TION
9.63 27.17117.85 35.405.51 21.00
1747.83 7440.001.58 12.821.24 5.56
8.4083.29 380.00__0.07 0.270.41 2.10
0.05 0.19__0.04 0.14____
616.32 2849.9897.96 450.0098.40 435.00
225.40 954.991.55 8.008.39 42.5012.80 53.00
1003.51 4449.970.14 0.752.68 9.10____
135.45 534.99____
365.00____ ______
1451.86 6529.96
__168.78 594.44
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
22.0.
15.5500.
10.3.8.
300. 0.1.
0.--0.----
1750.345.235.515.
5.18.28.
2650.0.6.----
180.----
120.-------- --
3999.
--126.
0095000080651000
1120
07
09
00000000500050005065
00
00
99
00
14.000.017.00
4000.009.802.507.90
233.00--0.070.96
0.05 0.04----
1600.00320.00190.00400.00
4.6016.0022.00
2100.000.504.10----
140.00-- --
55.00---- ------
3240.00
--61.00
2.130.005.20
3300.008.751.957.60
187.50 0.040.86
0.02--0.04--
1200.00220.00135.00320.00
4.0011.5015.00
1650.000.401.40----
100.00------
30.00 --------
2530.00
--36.25
0.000.002.00
1100.007.071.267.26
90.00--0.010.49
0.01--0.02----
450.00107.5043.00110.002.207.454.60
575.000.200.25----
65.00------10.00---- -- --
919.50
--23.15
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
192019191919191919191919
REGRESSION ] COEFFICIENT
**0.0470.308.0522.0445.104.000776.00225.00548.520.756
tNDEPENDEl VARIABLE
LOGQQKKKKKKKKKK
«T REGRESSION S ?^ CONSTANT JJtifcKniNAiu
**
61.821687.1-2.98-2.151.546.09-.00366
-17.9112
0.38.39.76.86.60.93.92.80.51.80.96.96
OF SIGNIFICANCE )N PROBABILITY
OF F
0 .0046.0034.0001.0001.0001.0001.0001.0001.0006.0001.0001.0001
STANDARD ERROR OF ESTIMATE
**
34.316556.015.640.0
.5162.913.64
140196
59
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06425780 STATION NAME AND LOCATION: BELLE FOURCHE RIVER ABOVE DRY CREEK NEAR PINEY, WYO. DRAINAGE AREA: 594 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
78995160554054512
4546
436
4544
51515151515151515151123
51121213511216121289
48
1247
32250014006500
19108
430004
4700
204
2600550300700
65035
34000
201
2001700
102031
80031
200030227
80005280
<04020
.00
.00
.00
.00
.00
.00
.70
.00
.07
.59
.30
.00
.25
.59
.00
.20
.00
.00
.00
.00
.30
.00
.00
.00
.80
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.001.00
270.004.301.207.30
52.000.010.020.27
0.010.010.010.900.2072.0019.006.0013.000.505.802.0077.000.200.30
<1.00<100.00
60.00<2.00
<20.00<20.00<10.00<2.009.00
<20.00<1.000.00
550.00182.00
<0.503.00
11.5433.3852.92
3105.0510.453.29--
225.26--0.131.23
3.31--0.07----
1184.55259.90129.28275.98
3.3718.6414.46
1491.430.395.68----
379.41----------
298.06--------
2309.87
--580.36
DEVIA- 95TION
8.72 26252.01 59199.59 254
1480.57 57852.81 171.55 5
8103.58 430
--0.12 00.71 2
8.96 26--0.11 0----
584.09 2100121.88 43469.34 240152.51 574
1.21 59.36 377.29 32
796.65 28000.13 04.30 14
1--
284.52 980102031
60531
503.02 20003022
----
1132.05 4192
<01007.98 3478
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.00
.00
.00
.00
.48
.48
.52
.00-.42.73
.60-.42--.00.00.00.00.82.40.00.00.70.00.00-.00.00.00.00.00.00.00.00.00--.00
.50
.00
18.371.80
15.004175.00
11.404.158.10
280.00--0.131.30
1.40--0.06----
1600.00350.00180.00370.00
4.1024.0017.00
2100.000.407.301.00--
520.003.00
<20.00<20.00110.00<2.00
362.5020.002.00----
3075.00
<0.50996.00
12.000.108.10
3110.009.902.808.00
220.00--0.091.10
0.31--0.04----
1300.00280.00140.00280.00
3.4018.0014.00
1600.000.404.701.00--
330.00<2.00
<20.00<20.0060.00<2.0095-0020.001.00----
2435.00
<0.5073.00
3.880.015.00
2200.009.002.207.78
160.00--0.060.80
0.07--0.02----
710.00170.0074.00160.002.6012.009.40
870.000.302.001.00--
180.00<2.00
<20.00<20.0040.00<2.0022.50<20.00
1.00----
1420.00
<0.5036.00
0.000.002.60
415.356.121.617.37
62.40--0.040.37
0.02--0.01----
120.0031.609.26
36.001.625.924.16
88.600.200.40
<1.00--
72.00<2.00
<20.00<20.0012.00<2.009.00
<20.00<1.00----
337.70
<0.509.60
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
384844444444444444444441
REGRESSION COEFFICIENT
*JL
*
0.385.0787.0448.0964.000724*.00355.540.770
INDEPENDENT REGRESSION VARIABLE CONSTANT
QQKKKKKKKKKK
***
79.235.8-.878
-6.131.26*4.21
-64.389.9
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.39.21.38.87.81.88.88.73.35.51.93.93
0 .0001.0011.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
Vr
*
*
20652.422.148.3
.594*4.73
195286
60
Table 1.--Statistical summaries of water-guaJity data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 06425900 STATION NAME AND LOCATION: CABALLO CREEK AT MOUTH NEAR PINEY, WYO. DRAINAGE AREA: 260 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
2441201919191519
145
1919171919191919191919191978
19777
197777
164
1919
732
2410404780
128
37001
100
252
1800390250500
646
1902300
082
3441100
3<20<25120<251100130
28900
7540003580
014500
.50
.00
.00
.20
.30
.00
.23
.70
.60
.27
.35
.00
.10
.00
.00
.00
.00
.80
.00
.00
.00
.60
.70
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.30
.00
0.000.00
320.006.506.10
44.000.010.43
0.010.000.016.200.00
120.0024.0010.0016.000.607.304.40
110.000.100.10
<1.00<100.00110.00<3.00
<20.00<25.00<10.00<25.00<10.00<20.00<1.0025.001.00
170.00209.00
<0.105.00
9.7330.34
2385.909.33--
212.260.070.98
0.17--0.0813.920.81
962.63205.58107.68210.05
2.8120.1943.78
1116.840.374.04----
435.26----------------
1029.25--
8251.051835.79
--1857.34
DEVIA- 95TION
7.58 23162.04 44
1291.30 47461.93 12
8100.63 3700.06 00.30 1
0.43 1__0.08 05.45 250.54 2
533.56 1800116.97 39071.81 250147.49 500
1.59 611.80 4646.53 190
664.23 22990.17 02.52 8----
311.26 1100______
120-- ----
2227.67 8900--
14031.34 539991047.81 3579
__3696.91 11704
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.87
.95
.00
.20
.30
.00
.23
.70
.60-.35.00.10.00.00.00.00.80.00.00.99.60.70--.00---.00----.00-.68.99
-.96
16.375.25
3349.7511.208.10
300.000.101.00
0.09--0.0918.000.95
1400.00280.00160.00300.00
4.1026.0064.00
1700.000.505.80----
630.00------
60.00--------
667.50--
9200.002770.00
--1121.00
9.250.33
2525.009.708.10
210.000.060.93
0.01--0.0415.000.80
1000.00240.00110.00210.00
2.4017.0030.00
1200.000.404.20----
350.00------
40.00--------
220.00--
1800.002030.00
--39.00
2.380.00
1080.007.608.00
130.000.020.86
0.01--0.038.900.45
410.0082.0041.0072.001.60
11.0011.00
440.000.201.40----
180.00------
20.00--------
71.75--
650.00718.00
--23.00
0.000.00
325.006.506.10
44.000.010.43
0.01--0.016.200.00
120.0024.0010.0016.000.607.304.40
110.000.100.10----
110.00------
<10.00--------
25.00--
170.00209.00
--5.65
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
201919191919191919191918
REGRESSION COEFFICIENT
*0.0662.354.0796*.106.00107*.0252.482.773*
INDEPENDENT REGRESSION VARIABLE CONSTANT
QKKKKKKKKKK
LOGQ
*55.212416.7
J-
-42.3.265*
-16.0-25.7
2.00*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.35.76.77.81.47.91.80.28.52.92.96.08
0 .0059.0001.0001.0001.0013.0001.0001.0209.0005.0001.0001.254
STANDARD ERROR OF ESTIMATE
*50.7
26252.0*
44.7.729*
33.3189226
*
61
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06426400 STATION NAME AND LOCATION: DONKEY CREEK NEAR MOORCROFT, WYO. DRAINAGE AREA: 246 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM
PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/100/ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
5357
1484545453638
331439
1373245454545454545454544121144121213441218121229104343
1258
26.502530.00
30.006900.00
18.608.80
880.006.8011.00
1.103.004.500.01
110.006.00
1500.00250.00260.001400.0022.0049.00
250.003400.00
3.8023.003.00
200.00940.00<20.00<20.00<25.00160.00
<200.00700.0040.003.00
20000.0020.00
630000.005410.00
0.506040.00
0.000.01
30.00740.00
4.207.10
74.000.000.56
0.000.000.010.014.600.20
250.0045.0033.0047.001.103.2012.00
220.000.200.401.00
<100.00110.00<20.00<20.00<25.00<10.00
<200.00100.00<20.00<1.0024.000.0076.00
460.00
<0.1011.00
7.8586.99--
3717.089.35--
463.420.892.19
0.180.440.34--
17-281.72
952.67148.93141.02582.04
8.0315.9999.38
1571.331.066.661.75--
423.86----------
275.56----
1332.765.80
35029.582892.91
--
381.95
PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WEREDEVIA- 95TION
7.57 21.353.89 500.
__
1425.02 6484.2.77 14.
8.191.46 745.
1.81 6.2 . 05 7 .
0.29 1.0.87 3.0.76 1.__
16.75 39.1.37 5.
315.43 1400.51.20 237.58.15 254.
307.02 1170.3.84 14.7.26 26.
71.23 230.804.20 3280.
0.56 1.5.08 17.0.75 3.
200.209.94 885.
<20.<20.<25.107.
<200.177.21 700.
40.3.
3668.89 11549.6.70 20.
98966.00 150000.1242.20 5243.
0.937.69 2375.
LESS THAN OR EQUAL TO THOSE75 50 25
SHOWN5
(MEDIAN)
3000
999364003758
020090
800900000000708000008750000000000000000000000074000099
5099
13.504.00--
4617.5010.558.30
615.001.032.50
0.210.410.25--
17.502.68
1200.00190.00180.00750.00
9.7519.00
165.002000.00
1.209.352.00
200.00557.50<20.00<20.00<25.0052.50
<200.00412.5020.001.00
1150.0010.50
22000.003680.00
<0.10199.75
7.0.--
3665.9.8.
470.0.1.
0.0.0.--
13.1.
990.150.150.530.
7.16.75.
1400.1.4.2.
<100.360.<20.<20.<25.40.
<200.205.<20.<1.
350.2.
8700.2710.
<0.141.
00 0.73 0.
--
00 2685-40 7.10 7.00 335.10 0.35 1.
04 0.03 0.10 0.
--
00 11.40 0.00 750.00 110.00 93.00 375.40 6.00 12.00 38.00 980.10 0.70 2.00 1.00 <100.00 252.00 <20.00 <20.00 <25.00 30.00 <200.00 167.00 <20.00 <1.00 120.50 0.00 1400.00 2060.
10 <0.00 72.
5017
004585000508
010206
007300000000250050008055000050000000000050000000750000
1075
0.000.06--
1022.504.937.36
105.000.010.77
0.010.000.03--
7.570.27
323.0049.0047.6077.501.714.0418.90
335.000.231.071.00
<100.00152.50<20.00<20.00<25.00<10.00
<200.00100.00<20.00<1.0036.000.00
86.80614.20
<0.1017.95
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDEJSIZE COEFFICIENT VARIABLE
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
474444444444444444444244
*
0.104.177*
.0356
.203
.00227**
.521
.8341.76
LOGQKKQKKKKQKKQ
rr REGRESSION ^CONSTANT
*
73.6300
*
9.30-178
-.478**
-371-265
115
'OEI
i£TFvFICIENT 0;RMINATION(r 2 )
0.38.63.64.11.76.92.75.10.04.87.94.79
F SIGPRO
1NIFICANCELABILITYOF F
0.0001.0001.0001.0255.0001.0001.0001.0417.213.0001.0001.0001
STANDARDERROR OFESTIMATE
*
116195
*29.485.51.92**
29731066.3
62
Table 1.--Statistical summaries of water-eyuality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06426500 STATION NAME AND LOCATION: BELLE FOURCHE RIVER BELOW MOORCROFT, WYO. DRAINAGE AREA: 1,670 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE SIZE
1221236579762272726063
595
631
101072727271717272727272202
722020217220282020113471
2064
MAXIMUM
31.2400,1500.5500.
16,9.8.
710,6,6.
4,0.2.0,
30.2.
1400,280.180.740.14,26.
210,2000,
1.16.4,
100.870.
3,20.23.
640,24.
1000.30,13,49.
64000,3620,
<0,10500
.00
.00,00.00.20.80.90.00.30.70
.40
.95
.50
.01
.00
.70
.00
.00
.00
.00
.00
.00
.00
.00
.60
.00
.00
.00
.00
.00,00.00.00.00.00.00.00.00.00.00
.50
.00
MINIMUM MEAN
0.000.002.00
480.003.501.206.7074.000.000.42
0.000.000.000.010.800.00
140.0030.0012.0040.001.306.005.80
130.000.000.00
<1.0050.0070.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.000.00
230.00290.00
<0.509.00
10.7464.51138.30
2449.628.964.12--
352.880.421.70
0.37--0.23--10.121.27
604.86121.0773.56
356.386.2512.6670.56
895.970.606.80----
256.25----------------7.91
15075.591755.63
--735.22
STANDARD DEVIA TION
9.22275.82300.841142.67
2.431.87
156.230.921.14
0.89--0.37--8.180.83
308.6560.6340.56176.20
2.514.18
57.97456.03
0.252.88----
152.45----------------14.06
16061.84827.35
--1722.44
PERCENT OF SAMPLES IN WERE LESS THAN OR EQUAL95
25.85326.401055.004699.99
13.789.368.60
614.002.074.38
3.00--0.61--
30.002.70
1200.00243.50147.00646.0011.0020.75183.50
1670.001.07
12.353.90--
557.003.00
20.0023.00
455.5024.00779.4930.0013.0049.00
57249.863142.00
<0.502965.00
75
19.0012.0090.00
3310.0010.485.378.30
466.000.382.00
0.20--0.28--11.751.85
850.00160.00110.00500.00
7.8015.75
120.001300.00
0.788.181.75--
315.00<2.00
<20.00<2.00
100.004.00
220.00<20.00
2.007.00
26250.002470.00
<0.50465.00
50 (MEDIAN)
10.752.20
40.002400.00
8.453.458.10
340.000.131.50
0.06--0.13--9.651.45
560.00110.0063.50
340.006.5012.0044.50
870.000.606.751.00--
195.00<2.00
<20.00<2.0050.002.00
155.00<20.00
1.003.00
9900.001760.00
<0.50173.00
WHICH VALUES TO THOSE SHOWN
25
1.000.2413.50
1500.007.602.807.70
232.500.050.96
0.01--0.06--5.250.65
340.0069.2540.00
220.004.309.73
22.00517.50
0.504.73
<1.00--
152.50<2.00
<20.00<2.0030.00<2.0090.00
<20.00<1.001.00
2050.001060.00
<0.5069.25
5
0.000.023.86
670.005.271.397.43
92.050.010.61
0.00--0.02--0.800.00
200.0040.3016.2566.601.987.679.83
196.500.273.16
<1.00--
90.00<2.00
<20.00<2.00
<10.00<2.00<10.00<20.00<1.000.00
590.00406.00
<0.5010.50
63
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06426500 STATION NAME AND LOCATION: BELLE FOURCHE RIVER BELOW MOORCROFT, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE SIZE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
59746868686867676868686719
REGRESSION INDEPENDENT COEFFICIENT VARIABLE
**0.120.240.0417.0327.153.00166 k
*
.384
.72230.0
KQKKKKKKKKKKQ
REGRESSION CONSTANT
**
60.923.119.2-5.1815.72.21Vf
*-32.1-2.43
187
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.25.08.69.78.63.81.89.50.49.36.88.93.63
0.0001.0159.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
-<v
89.014335.717.760.31.84
-v
157214337
Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06645000 STATION NAME AND LOCATION: NORTH PLATTE RIVER BELOW CASPER, WYO.--Continued DRAINAGE AREA: 12,574 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)
SAM PLE MAXIMUMSIZE
159 22157 4130145 1100158 1600151 16141 999 170129 0144 3
142 224 1153 198 40098 7898 3298 11098 298 598 5098 34096 198 163 21 304 804 24 <34 44 304 54 <104 <204 7
47 376008 101 360
98 670
3 <0
.00
.00
.00
.00
.10
.30
.00
.68
.70
.40
.00
.30
.00
.00
.00
.00
.90
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
STATISTICS
MINIMUM
0.440.
2.425.
2.7.
90.0.0.
0.0.0.
170.42.14.29.0.2.4.
110.0.0.
<1.30.50.<2.<3.2.
<10.<2.
<10.<20.
3.20.0.
360.305.
<0.
000000003020000014
00050100000000901090002000000000000000000000000000000000
50
MEAN
8.841391.8735.44
719.489.84--
135.370.120.78
0.430.340.11
237.0459.2921.1751.281.453.4913.96
186.730.479.32-------------- __--
5782.06----
429.49
--
STANDARD DEVIATION
6.66743.68108.65154.36
2.05--12.340.100.47
0.310.250.12
32.727.053.2813.120.290.575.30
43.480.102.65-- -------------- --
7012.43----
73.02
--
PERCENT OF SAMPLES INWERE LESS THAN95 75
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
18.503014.99123.80992.0013.068.90
160.000.301.60
0.860.940.27
280.5070.1028.0076.202.004.4022.05
270.500.6013.00---- ----__----------
19699.96 --
567.05
--
15.401800.0020.00
778.7511.208.70
140.000.160.93
0.540.490.12
250.0064.0023.0057.251.603.9216.00
210.000.5011.00-------------- ------
9099.98----
469.50
--
9.001030.00
13.00700.00
9.408.50
136.000.100.66
0.410.240.09
240.0059.0021.0050.001.403.5014.00
190.000.509.70----------------------
4530.00----
429.50
--
2.00900.00
8.00617.50
8.308.30
130.000.040.48
0.240.160.06
210.0054.0019.0041.001.273.1011.00
150.000.408.27---- ------------ --
220.00----
372.75
--
0.00700.004.00
529.257.267.80
120.000.010.34
0.110.050.03
189.5048.8516.0035.001.102.497.40
130.000.303.55-- -------------- --
33.00----
320.00
--
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE REGRESSION INDEPENDE! SIZE COEFFICIENT VARIABLE
145156979696969696969696
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 96
* k
**
-25.*
-47.****
-272
6
7
KLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQ
JT PTrrpTTQQTnw COEFFICIENT OF SIGNIFICANCE CONSTANT DETERMINATION PROBABILITY
(r 2 ) OF F
****
139*
199*.X.
**
1,275
0.07.29.28.33.53.41.51.46.10.24.48.55
0 .0011.0001.0001.0001.0001.0001.0001.0001.0017.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*&**
4.77 >v
9.15****
48.8
65
Table 1. Statistical summaries of water-quality data from the Powder River coaj basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06646800 STATION NAME AND LOCATION: NORTH PLATTE RIVER NEAR GLENROCK, WYO. DRAINAGE AREA: 13,538 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE SIZE
MAXIMUM MINIMUM MEANSTANDARD DEVIA TION
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN 95 75 50 25 5
(MEDIAN)
TEMPERATURE (DEC C) 75 26.50 0.00STREAMFLOW, INSTANTANEOUS (FT3/S) 84 3970.00 465.00SPECIFIC CONDUCTANCE (MICROSIEMENS) 4 845.00 550.00PH (UNITS) 4 8.70 8.20ALKALINITY (AS CAC03) 82 170.00 98.00NITROGEN, AMMONIA + ORGANIC TOTAL 1 0.29 0.29
(AS N)NITROGEN, N02+N03 DISSOLVED (AS N) 26 1.80 0.09PHOSPHORUS, TOTAL (AS P) 80 0.64 0.00HARDNESS (AS CAC03) 82 450.00 170.00CALCIUM DISSOLVED 82 92.00 44.00MAGNESIUM, DISSOLVED 82 37.00 14.00SODIUM, DISSOLVED 82 140.00 32.00SODIUM ADSORPTION RATIO 82 3.50 1.00POTASSIUM, DISSOLVED 82 4.70 0.30CHLORIDE, DISSOLVED 82 26.00 5.30SULFATE DISSOLVED 82 450.00 130.00FLUORIDE, DISSOLVED 82 0.80 0.30SILICA, DISSOLVED 82 17.00 1.50SELENIUM, DISSOLVED (UG/L) 1 3.00 3.00SOLIDS, SUM OF CONSTITUENTS, 82 963.00 308.00DISSOLVED
SEDIMENT, SUSPENDED 2 144.00 11.00
14.091508.64
138.02
0.560.12
250.8562.0622.7354.951.503.3514.56
204.270.528.83
6.49 23.50799.44 3489.99
0.400.11
45.0610.324.7918.730.400.744.32
56.980.102.45
20.00 14.001902.50 1210.00
9.00950.50
1.550.40
330.0079.7032.0090.852.204.60
23.00328.50
0.7012.00
0.890.13
272.5069.0025.0060.251.703.8017.00
222.500.6010.00
0.440.09
250.0062.0022.0053.001.503.3514.00
200.000.509.05
0.280.05
220.0053.0019.0041.751.203.0012.00160.000.507.57
3.40605.00
14.55 160.00 150.00 140.00 130.00 110.00
0.090.03
190.0046.0016.0036.001.102.118.09
140.000.403.94
458.12 101.33 642.95 501.50 455.50 384.50 340.00
66
Table 2. Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981
[Water-quality constituent:
Regression statistics:
Independent variable:
STATION NUMBER: 06630000
Values in milligrams per liter, except as indicated;DEC C, degrees Celsius; FT3/S, cubic feet per second; NTU, Nephelometric turbidity units;MICROSIEMENS, microsiemens per centimeter at 25 degrees Celsius; UG/L, micrograms per liter;UG/KG, micrograms per kilogram; COLS/100 ML, colonies per 100 milliliters of water.*, value not included in table because coefficient of determination was less than 0.50,or significance of probability of the F-value was greater than 0.05, where F equals theratio of the regression mean square to the error mean square.K, specific-conductance value, in microsiemens per centimeter at 25 degrees Celsius;Q, instantaneous-streamflow value, in cubic feet per second; LOGQ, base 10 logarithm ofinstantaneous-streamflow value, in cubic feet per second]
STATION NAME AND LOCATION: NORTH PLATTE RIVER ABOVE SEMINOE RESERVOIR NEAR SINCLAIR, WYO. DRAINAGE AREA: 4,175 SQUARE MILES
DESCRIPTIVE STATISTICSCAM_
WATER QUALITY CONSTITUENT £££
SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N).NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDCOLIFORM, FECAL, (COLS/ 100 ML)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
8475835282528499
8227383838383838383838383799
83
MAXIMUM
24.008780.00600.00640.0013.208.70
180.000.552.20
0.182.200.47
280.0067.0028.0057.001.604.70
22.00210.00
0.7020.00160.000.002.00
463.00
MINIMUM
0125
1200
67
5000
000
631848001
2400100
109
.00
.00
.00
.00
.10
.60
.00
.05
.37
.00
.00
.00
.00
.00
.40
.00
.40
.30
.20
.00
.20
.00
.00
.00
.00
.00
MEAN
8.111270.65
19.07446.02
9.73
121.42
0.250.06
174.1246.5814.0328.500.932.7311.0798.230.4912.85 --
287.81
STANDARD DEVIA TION
7.591898.4566.48123.40
1.55
29.91 --
--0.560.07
52.2713.914.759.810.230.814.53
40.230.114.79 --
86.61
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95
21.375818.00
61.00622.0012.088.60
164.00 --
2.090.19
248.0066.0021.8041.001.304.1618.00
176.000.7019.80------
411.00
75
15.001070.0020.00
548.7510.858.38
140.00
0.140.06
210.0058.0017.0036.001.103.3014.00
130.000.6017.00-- --
349.00
50 (MEDIAN)
6.75382.00
6.00465.00
9.758.15
130.00 --
--0.000.03
190.0050.0015.0031.000.902.8011.00
110.000.5013.00--
311.00
25
0.50280.00
3.00331.00
8.407.90
107.00 --
--0.000.02
130.0035.0010.0021.000.802.207.30
64.000.4010.00--
210.00
5
0.00171.60
1.00215.45
7.517.67
60.75--
--0.000.0176.4021.205.8411.000.501.324.2633.800.301.02
127.60
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDENT REGRESSION SIZE COEFFICIENT VARIABLE CONSTANT
SIGNIFICANCE STANDARDPROBABILITY ERROR OF
OF F ESTIMATE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVED
404141404040404040404040
*-196
.231
.433
.108
.0381
.0695
.00135**.279.695
LOGQLOGQ
KKKKKKKKKK
*99317.1
-21.7-2.90-3.02-4.20
.282**
-29.7-31.5
0.08.64.86.93.90.79.85.60.29.46.68.91
0.0748.0001.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001
*77.812.214.54.572.453.70.139**
23.927.2
67
Table 2. Statistical summaries of water-quality data from the Hanna coal field, based on saopJes collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 06630300 STATION NAME AND LOCATION: BIG DITCH NEAR COYOTE SPRINGS, WYO. DRAINAGE AREA: 110 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVED (MG/L)OXYGEN DEMAND, BIOCHEMICAL,
5 DAY (MG/L).PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N).NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLESIZE
17231717153
15171616
161
16171717171717171717171217121212171212121217
1212
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MAXIMUM
21.0039.00
15000.006500.00
11.3010.00
8.60490.00
1.1013.00
6.800.7312.00
1800.00290.00280.00850.0012.0018.0083.00
3000.001.806.902.00
3100.003.00
<20.0019.00
4000.0017.0050.0060.002.00
4740.00
<0.5027300.00
MINIMUM MEAN
0.000.0078.00
1000.006.608.10
7.9078.000.031.30
0.020.730.06
300.0047.0013.00
100.002.505.7010.00
390.000.200.501.00
60.00<2.00
<20.002.00
40.00<2.00
<10.00<20.00
1.00674.00
<0.50534.00
10.746.15
1635.182933.53
8.77
277.59
0.404.02
1.60 1.84
812.35126.94119.47375.88
5.549.1534.12
1275.880.543.571.33
352.94 5.92
355.88 1.08
2113.65
4050.17
DEVIA- 95TION
6.66 219.11 34
3569.04 150001750.75 6500
1.33 11
8135.14 4900.35 12.85 13
1.75 6 3.05 12
479.56 180062.94 29080.45 280
245.54 8502.62 122.95 18
22.45 83781.26 3000
0.37 11.45 60.49 2
712.57 31003
<20.00 <204.70 19
950.19 4000175060
0.29 21240.83 4740
<o7490.57 27300
.00
.60
.00
.00
.30-
.60
.00
.10
.00
.80-.00.00.00.00.00.00.00.00.00.80.90.00.00.00.00.00.00.00.00.00.00.00
.50
.00
75
15.259.40
1300.004800.00
9.60
8.60417.00
0.604.75
2.70 2.05
1050.00150.00165.00575.00
7.4510.0051.00
1750.000.554.502.00
235.00<2.00
<20.008.00
200.002.75
50.0030.001.00
2965.00
<0.503092.50
OR EQUAL50
(MEDIAN)
12.003.20
480 . 002360.00
8.90
8.40250.00
0.343.30
0.92 0.73
730.00110.00110.00310.00
4.908.80
28.001100.00
0.403.301.00
180.00<2.00
<20.004.50
60.00<2.0040.0020.001.00
1860.00
<0.501505.00
WHICH VALUESTO THOSE
25
3.0.
185.1385.
7.--
8.155.
0.2.
0. 0.
460.81.63.170.
3.6.
15.615.
0.2.1.
115.<2.
<20.3.
40.<2.
<10.<20.
1.1065.
<0.826.
5002000090
00001300
26
20005000003590500035550000000025000000000000
5075
SHOWN5
0.000.0078.00
1000.006.60
7.9078.000.031.30
0.02--0.06
300.0047.0013.00
100.002.505.7010.00
390.000.200.501.00
60.00<2.00
<20.002.00
40.00<2.00
<10.00<20.00
1.00674.00
<0.50534.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE REGRESSION SIZE COEFFICIENT
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
171717 017171717171717171711
**.0685.244.0308.0394.132.00120*.00944.420.674*
INDEPENDENT REGRESSION VARIABLE CONSTANT
KLOGQ
KKKKKKKKKKK
**
76.797.836.53.92
-10.42.01*
6.4243.6138
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r2 ) OF F
0.14.37.79.79.74.73.88.65.38.54.89.90.30
0....
.
.
132009700010001000100010001000100800007000100010802
STANDARD ERROR OF ESTIMATE
**
64.422733.442.887.21.60*
15.7272398
*
68
Table 2.--Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981--Coo.tin.ued
STATION NUMBER: 06634990 STATION NAME AND LOCATION: HANNA DRAW NEAR HANNA, WYO.DRAINAGE AREA: 22 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
3545343330123232
13132
311
31323232323232323232321632161616321616161632
1630
2645
200003800
1268
39600
24
209
1700310240300
312
1602000
0143
14003
2035
31018
48040
13050
125800
.00
.00
.00
.00
.00
.40
.70
.00
.12
.72
.00
.00
.01
.40
.00
.00
.00
.00
.20
.00
.00
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.80
.00
0.000.002.00
615.005.600.707.00
81.000.120.000.48
0.010.010.01
270.0060.0024.0027.000.705.404.00
220.000.204.00<1.0050.00<2.00
<20.00<2.0010.00<2.0020.00
<20.00<1.00
415.00
<0.509.00
10.412.72
998.982239.24
9.593.02--
284.69--0.121.97
0.30--0.52
1090.00207.28140.00175.28
2.208.30
20.831110.94
0.376.11--
130.00------
68.44--
262.50----
1840.00
--1948.33
DEVIA- 95 75TION
6.73 248.06 24
3596.59 11749934.89 3765
1.41 111.97 6
8102.48 392
__0.14 04.12 11
0.42 1__1.74 5
466.94 170082.15 31066.99 23385.81 2930.75 31.71 12
26.78 78524.43 1870
0.08 01.71 9
3232.71 587
32035
66.29 27718
138.15 480401
815.70 2933
16479.80 25744
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.00 15.
.70 1.
.80 247.
.00 2900.
.95 10.
.40 4.
.70 8.
.10 379._.50 0..19 1.
.52 0._.56 0..00 1500..00 280..50 190..50 247..14 2..00 9..10 26..00 1575..50 0..77 6..00 1..49 100..00 2..00 <20..00 4..50 80..00 5..00 360..00 <20..00 1..00 2557.
.80 <0.
.98 329.
5040500070653000
1635
34
30000000508030500040680000000000000000000050
5075
10.000.2215.00
2400.009.552.358.20
318.50--0.100.97
0.14--0.04
1150.00230.00145.00195.00
2.408.3515.00
1150.000.406.001.00
90.00<2.00
<20.003.00
45.003.50
305.00<20.00
1.001950.00
<0.5095.50
5.500.107.50
1330.008.871.577.93
200.00--0.020.71
0.05--0.02
607.50122.5077.0084.501.437.338.65
565.000.305.30<1.0070.00<2.00
<20.002.00
30.00<2.00125.00<20.00<1.00
989.75
<0.5051.00
0.800.002.00
737.506.530.707.20
90.75--0.010.50
0.02--0.01
309.0064.5529.2036.750.835.474.39
259.000.204.07<1.0056.50<2.00
<20.00<2.0010.00<2.0020.00<20.00<1.00
480.00
<0.5020.55
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
31313030303030303030303027
REGRESSION COEFFICIENT
1120*
.0837
.435
.0781
.0594
.0832
.000721**.495.780*
INDEPENDENT REGRESSION VARIABLE CONSTANT
KLOGQ
KKKKK
KLOGQ
KKKQ
*1980
95.195.329.23.79
-12.9.583
**
-16.764.9
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.15.75.62.86.89.79.89
.83.45.19.87.89.46
0
.0001
.0336
.0001
.0001
.0001
.0001
.0001
.0001
.0001
.0161
.0001
.0001
.0001
STANDARD ERROR OF ESTIMATE
JU
48964.8
17127.330.429.5
.324**
188270
*
69
Table 2.--Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 06635000 STATION NAME AND LOCATION: MEDICINE BOW RIVER ABOVE SEMINOE RESERVOIR NEAR HANNA, WYO. DRAINAGE AREA: 2,338 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM
PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)SPECIFIC CONDUCTANCE (MICROSIEMENS)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
91791611862482
11
86868686868686868684888888888
86
886
2722201950
8221
5241
1100270110200
31480
110001242
<20<20190
430308
1720
03770
.00 0.
.00 3.
.00 700.
.90 8.
.00 81.
.50 0.
.20 0.
.10 4.
.30 1.
.00 160.
.00 31.
.00 13.
.00 26.
.70 0.
.00 0.
.00 3.
.00 130.
.90 0.
.00 0.
.00 <1.
.00 <2.
.00 <20.
.00 <20.
.00 10.
.00 <2.
.00 <10.
.00 <20.
.00 <1.
.00 269.
.20 <0.
.00 3.
0080002000000010300000000090206000200000000000000000000000
1000
8.58266.551378.13
--
149.710.710.14----
497.33115.9950.6696.621.863.61
29.69504.58
0.546.08-------------- --
901.58
--
336.02
STANDARD DEVIATION
7.94432.37366.10
--
36.661.220.34----
191.1543.5621.5840.860.561.67
16.16217.75
0.142.52---- ------ --
338.62
--
556.43
PERCENT OF SAMPLES INWERE LESS THAN95 75
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
22.701399.991950.00
8.90211.95
4.720.60
769.50180.0089.50170.002.906.29
55.65780.000.809.95 -- ----
1349.50
--
1422.50
14.00345.001621.25
8.50180.000.850.09--
630.00140.0064.50120.002.204.00
41.00645.00
0.607.90---- ------ ----
1127.50
--
412.00
8.5054.00
1440.008.40
150.000.270.04----
535.00130.0053.5093.501.903.40
31.00540.00
0.606.10------ ----------
977.00
--
92.00
0.5031.00
1097.508.30
120.000.040.02 --
337.5083.5033.2571.501.402.8716.00
337.500.404.30-- ----------
641.25
--
52.00
0.009.20
700.008.20
90.000.000.01----
173.5043.7017.3532.351.001.505.57
153.500.300.90 ------ --
317.70
--
17.40
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
SIZE
131212121212121212121212
REGRESSIONCOEFFICIENT OF SIGNIFICANCE
INDEPENDENT REGRESSION TMTTFRMTNATTnN PRORARTLTTYCOEFFICIENT
-480*.495
-78.8.0514****.572.837*
VARIABLE
LOGQLOGQ
KLOGQ
KKKKKKK
LOGQ
CONSTANT
2140
-71
272-9
-161-85
*
.3
.09JL
*
*
*
.2*
(r 2 )
0.50.04.80.69.91.44.12.37.37.88.91.21
0
OF F
.0070
.524
.0001
.0009
.0001
.0181
.271
.0352
.0355
.0001
.0001
.136
STANDARD ERROR OFESTIMATE
294*
10932.47.25***/v
92.6117
*
70
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981
[Water-quality constituent:
Regression statistics:
Independent variable:
Values in milligrams per liter, except as indicated; DEC C, degrees Celsius;FT3/S, cubic feet per second; NTH, Nephelometric turbidity units; MICROSIEMENS, microsiemensper centimeter at 25 degrees Celsius; UG/L, micrograms per liter; UG/KG, micrograms perkilogram; COLS/100 ML, colonies per 100 milliliters of water. CELLS PER ML, cells permilliliter of water.*, value not included in table because coefficient of determination was less than 0.50,or significance of probability of the F-value was greater than 0.05, where F equals theratio of the regression mean square to the error mean square.K, specific-conductance value, in microsiemens per centimeter at 25 degrees Celsius;Q, instantaneous-streamflow value, in cubic feet per second; LOGQ, base 10 logarithm ofinstantaneous-streamflow value, in cubic feet per second]
STATION NUMBER: 09188500 STATION NAME AND LOCATION: GREEN RIVER AT WARREN BRIDGE, NEAR DANIEL, WYO. DRAINAGE AREA: 468 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE SIZE
MAXIMUM MINIMUMSTANDARD
MEAN DEVIA TION
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95 75 50
(MEDIAN)25 5
SUMMARY OF DATA COLLECTED AT PERIODIC INTERVALS
TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA, DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
137124126135872
4789325
179553
8989898989898788878921
2022262522
1888
254
203620
156801188
150005
0000
3601002611042
210081
<100320<2
<20<2
5703
20<20<1
1100438
0216
.00
.00
.00
.00
.00
.20
.80
.00
.16
.30
.00
.06
.73
.14
.14
.00
.00
.00
.00
.30
.40
.70
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.70
.00
0.0065.000.00
116.007.100.507.50
33.000.010.010.11
0.060.000.000.01
49.0015.002.801.300.100.600.1018.000.100.60
<1.00<100.00<20.00<2.00
<20.00<2.0020.00<2.00
<10.00<20.00<1.0029.0070.00
<0.102.00
6.62574.40
2.04380.26
9.35----
98.01------
--0.070.02--
214.4562.7213.953.400.101.301.25
117.810.264.88------ --------------
308.83266.18
--18.94
6.51695.67
2.26155.69
1.00----
32.89------
--0.090.02--
88.4825.995.731.340.020.570.51
59.030.112.04----------------------
366.72109.83
32.90
17.552005.00
6.00620.0010.70--8.70
140.50------
--0.190.07
325.0097.0021.004.850.102.202.22
200.000.407.45----
306.00----------------
1100.00410.55
--
68.50
12.50829.50
2.00520.0010.20--8.20
123.00------
--0.090.03--
290.0086.0019.004.150.101.501.50
170.000.306.80----
30.00 --------------
380.00367.25
--25.00
6.00261.50
1.00390.00
9.70--8.10
110.00------
--0.060.02--
220.0064.0015.003.500.101.201.20
120.000.305.10----
<20.00-- ---- ------
140.00274.00
--7.00
0.00122.50
1.00240.00
8.60--7.80
67.00-- --
--0.010.01--
130.0039.008.852.450.101.000.90
63.000.202.95----
<20.00----------------
68.25160.25
--4.00
0.0085.000.00
139.007.62--7.54
40.50------
--0.000.01--
70.0021.004.251.550.100.700.40
25.350.101.80----
<20.00----------------
29.0085.60
--2.00
71
Table 3.--Statistical summaries of water-guaJity data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09188500 STATION NAME AND LOCATION: GREEN RIVER AT WARREN BRIDGE, NEAR DANIEL, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDENT REGRESSION SIZE COEFFICIENT VARIABLE CONSTANT
COEFFICIENT OF SIGNIFICANCE STANDARDDETERMINATION PROBABILITY ERROR OF
(r 2 ) OF F ESTIMATE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
1131217373737373737371727252
*-259
.203
.582
.171
.0371
.00645*-%.*.366.713*
QLOGQ
KKKKKQQQKKQ
*1,010
17.8-19.8-6.10-1.02
.761-i-
**
-32.0-22.8
/v
0.41.64.75.93.93.90.74.00.14.16.88.93.27
0.0001.0001.0001.0001.0001.0001.0001.604.0012.0005.0001.0001.0001
-U
91.417.524.07.211.81.561
&
"V
19.829.8
-V
72
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09192600 STATION NAME AND LOCATION: GREEN RIVER NEAR BIG PINEY, WYO.DRAINAGE AREA: 1,260 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
SEDIMENT, SUSPENDED
8382347739812
2260
182828282828278828181121
80
42
206680
50760
8221
1
000
32088408923
19250
110
<20608
562
406
.00
.00
.00
.00
.90
.00
.20
.73
.22
.01
.00
.00
.00
.00
.40
.90
.00
.00
.80
.00
.00
.00
.00
.00
.00
0.006.500.00
180.007.60
62.000.15
0.000.000.01
59.0017.004.003.300.100.200.209.900.100.10
<20.00<10.00
8.0086.00
2.00
6.51637.40
5.56449.14
--146.40
0.070.03--
223.1362.6316.1911.610.341.483.93
92.450.325.89-- --
287.94
42.29
DEVIA- 95TION
6.94 191033.99 2100
11.09 35125.56 623
832.00 180
0.16 00.05 0--
62.48 30018.14 855.27 2211.98 290.31 00.62 23.85 14
42.82 1400.19 02.07 8__--__
88.39 444
82.72 251
75EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.40
.00
.00
.00
.50
.00-
.66
.20-.00.00.85.55.87.77.00.00.50.79---.10
.95
13.50513.25
2.00550.00
8.30170.00
--
0.060.03--
280.0079.0019.0012.000.301.824.75
120.000.407.25------
341.75
32.00
4.50230.00
1.00460 . 00
8.10160.00
0.010.01--
240.0066.5016.508.600.201.402.35
100.000.306.20------
317.00
12.00
0.00164.00
1.00340.00
7.90120.00
--
0.000.01
170.0044.0012.756.500.201.101.70
58.000.204.30------
231.50
6.00
0.00105.80
0.75229.00
7.7082.80--
0.000.00--
120.0033.608.134.360.200.540.79
27.150.102.22-- --
142.35
2.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
34777677777777777773777541
REGRESSION COEFFICIENT
0.00832*~u
.408
.109
.0315****.258.562*
INDEPENDENT VARIABLE
QLOGQ
KKKKKKKKKKQ
REGRESSION CONSTANT
-0.246.'.
*40.813.92.10j.***
-24.931.6*
COEFFICIENT OF DETERMINATION
(r 2 )
0.62.41.49.70.59.58.20.11.21.10.70.72.48
SIGNIFICANCE PROBABILITY
OF F
0 .0001.0001.0001.0001.0001.0001.0001.0027.0001.0068.0001.0001.0001
STANDARD ERROR OF ESTIMATE
6.91»'-
*33.611.43.38*j.**
21.343.3
*
73
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 09196500 STATION NAME AND LOCATION: PINE CREEK ABOVE FREMONT LAKE, WYO. DRAINAGE AREA: 76 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
49493439213
1323862
13131313131113136
1322
1322
1328222
112
41
171680
2230
807
1500000
1551100070319
<20<1
<10120<10<10<3<10
26<015
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
31391010101010101010101036
.00
.00
.00
.00
.10
.80
.70
.00
.06
.07
.11
.02
.01
.00
.40
.20
.40
.20
.70
.10
.40
.10
.70
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.004.200.0010.007.200.807.503.000.000.020.010.010.015.001.500.100.300.000.200.101.400.000.60<1.006.00
<20.00<1.00
<10.00<10.00<10.00<10.00<3.00<1.000.008.00<0.501.00
REGRESSION COEFFICIENT
*************
5.80288.47
.7626.82------7.46----------9.153.060.360.730.120.460.413.06 2.09------ ------ ------15.36--4.85
STANDARD DEVIATION
4.89411.19
0.5034.11 ----3.62----------3.671.040.390.420.060.160.241.93--0.82----------------------5.94 3.52
REGRESSION
PERCENT OF SAMPLES INWERE LESS THAN OR EQUAL95 75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
15.001389.99
1.2552.00------15.00-- ------15.005.401.201.400.200.701.107.40--3.70----
<20.00----
120.00---- ----
26.00--12.90
9.00353.00
1.0025.00------9.00----------13.003.900.411.150.150.600.504.90 2.55----
<20.00----
60.00---- ----
21.00--7.00
5.00106.00
1.0022.00------7.00----------8.002.800.200.600.100.500.402.00--2.30----
<20.00----
30.00---- ----13.00--4.00
1.2522.000.0018.00------5.00------ --6.502.350.100.350.100.300.301.55--1.45----
<20.00----
20.00---- --
10.00--2.00
0.006.450.0012.00 ----3.00----------5.001.500.100.300.000.200.101.40--0.60----
<20.00----
<10.00----------8.00--2.00
STATISTICS
INDEPENDENT REGRESSION ^FT VARIABLE CONSTANT
LOGQLOGQLOGQ
KKKKQKKKKK
****« * « *-Ar
***"
FFICIENT ( ERMINATIOJ (r 2 )
0.44.00.23.29.18.33.28.19.32.06.18.29.21
)F SIGNIFICANCE f PROBABILITY
OF F
0 .0001.715.0933.107.225.0816.119.202.0882.497.224.109.0052
STANDARD ERROR OF ESTIMATE
k*******">~ &***
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 2982--Continued
STATION NUMBER: 09203000 STATION NAME AND LOCATION: EAST FORK RIVER NEAR BIG SANDY, WYO. DRAINAGE AREA: 79 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTALNITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
SEDIMENT, SUSPENDED
SAM PLE SIZE
51524044314
112332664
11111111111111116
11111182
11
49
MAXIMUM
21.00886.00
2.00165.0011.805.307.80
29.000.020.060.700.021.20
12.000.03
46.0015.002.704.200.302.502.60
25.000.108.30
30.00310.0030.00
390.0074.00
37.00
MINIMUM
0.001.200.0012.008.405.306.606.000.020.020.300.010.020.010.018.002.400.400.400.000.300.201.600.102.70
<20.0060.00<10.00370.0012.00
1.00
STANDARD MEAN DEVIA
TION
6177
143---
15-------
216110007-4-
120--
33
7
.37
.58
.10
.98---.73-------.00.45.18.75.16.92.89.13-.69-.00--.36
.08
6.39285.28
0.3829.07-- --8.61--------------12.924.120.791.240.080.640.706.95--1.78--
68.70----
19.97
7.37
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95
19.20860.20
2.00113.75 ----
29.00--------------
46.0015.002.704.200.302.502.60
25.00--8.30
30.00310.00
----
74.00
28.50
75
12.00194.00
1.0051.50------
25.00--------------
32.009.801.902.500.201.301.20
11.00--6.30
<20.00140.00
----
52.00
8.00
50 (MEDIAN)
5.0022.001.00
39.00------
12.00--------------13.004.600.801.200.200.600.804.40--4.50
<20.00100.00
----
27.00
4.00
25
0.0010.501.00
24.25------8.00--------------12.003.500.700.800.100.500.302.60--3.20
<20.0070.00----
18.00
3.00
5
0.002.481.00
14.25------6.00--------------8.002.400.400.400.000.300.201.60--2.70
<20.0060.00----
12.00
1.50
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDENT SIZE COEFFICIENT VARIABLE
COEFFICIENT OF SIGNIFICANCE STANDARDDETERMINATION PROBABILITY ERROR OF
(r 2 ) OF F ESTIMATE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
36441111111111111111111142
-A-
-A-
0.157.264.0848.0123.0225*JL
n
.145
.415*v
QLOGQ
KKKKKKKKKKQ
*-A-
8.068.112.30.581.653
-A-
-A-
*
.021713.0*
0.04.18.68.86.87.50.68.24.41.36.90.89.25
0.227.0040.0017.0001.0001.0149.0017.124.0338.0531.0001.0001.0008
-A-
5.125.121.55.587.732
-A--vVr
2.326.95
75
Table 3. Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 09205000 STATION NAME AND LOCATION: NEW FORK RIVER NEAR BIG PINEY, WYO. DRAINAGE AREA: 1,230 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM SIZE
STANDARD MINIMUM MEAN DEVIA
TION
SUMMARY OF DATA COLLECTED AT PERIODIC
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTALNITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED, UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
1029042100
21
49821232
24758282828282818082798112311231321
1582
150
255660
153401069
123000010
140341219039
460
23<1
<10030<2
<202
80<23020<1
1500173
<0476
.00
.00
.00
.00
.80
.20
.00
.00
.02
.08
.74
.03
.60
.18
.00
.00
.00
.00
.80
.50
.30
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.10
.00
0.00165.000.00
65.009.706.207.10
23.000.020.060.110.010.000.00
23.006.701.503.000.200.100.500.000.001.10
<1.00<100.00<20.00<2.00
<20.00<2.0030.00<2.00
<10.00<20.00<1.0066.0036.00
<0.102.00
8.02896.32
2.71192.88
----
87.93--------0.110.03
84.3323.955.819.390.451.642.9512.360.238.46----------------------
584.07119.13
--30.42
7.411241.27
3.4157.42------
23.08--------0.330.03
22.006.262.052.900.110.491.867.170.082.92---------------- ----
451.9830.26
--70.68
PERCENT OF SAMPLES INWERE LESS THAN95
INTERVALS
19.923931.99
14.25269.80
----8.85
114.55--------1.300.10
110.0031.009.4813.850.602.307.09
26.550.3012.00-- ------------------
1500.00160.00
--115.05
75
15.00873.25
3.00230.00
----8.10
100.75--------0.070.03
98.0028.006.7211.000.501.903.6014.000.309.70----------------------
930.00136.25
--31.00
OR EQUALWHICH VALUESTO THOSE
50 25 (MEDIAN)
8.50335.00
2.00210.00
----7.90
98.00--------0.030.02
89.0026.005.759.900.501.602.2012.000.208.40----------------------
510.00126.50
--8.00
0.00259.50
1.00160.00
----7.60
82.00--------0.000.01
80.0022.005.027.970.401.401.808.900.206.85----------------------
190.00115.00
--5.00
SHOWN5
0.00177.750.1575.00----7.30
29.90--------0.000.0034.008.301.833.500.300.800.903.000.103.97----------------------
66.0050.15
--2.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
42876565656565656463656550
REGRESSION COEFFICIENT
-105*
.465
.409
.119*.0481****.570*
INDEPENDENT VARIABLE
LOGQLOGQ
KKKKKKKKKKK
COEFFICIENT OF SIGNIFICANCE CONSTANT DETERMINATION PROBABILITY
469-42
-
5
*
.54
.78
.164*.194 n
*
"&
*
.50*
0.13.61.85.73.81.46.66.39.33.04.37.77.13
0,.0204.0001.0001.0001.0001.0001.0001.0001.0001.105.0001.0001.0101
STANDARD ERROR OF ESTIMATE
*35.510.012.62.95*1.74*
JL
*
15.9*
76
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 2982--Continued
STATION NUMBER: 09208000 STATION NAME AND LOCATION: LA BARGE CREEK NEAR LA BARGE MEADOWS RANGER STATION, WYO. DRAINAGE AREA: 6 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
STATISTICSSTANDARD
MINIMUM MEAN DEVIA-SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
SEDIMENT, SUSPENDED
50503747413
13311
11085
13131313131313131313131395
13
44
17.00126.00
7.00350.00
8.800.108.40
180.000.040.010.30
0.050.210.030.06
210.0058.0016.003.300.100.802.60
31.000.206.80
<20.00130.00150.00590.00227.00
66.00
0.2.1.
130.7.0.8.
88.0.0.0.
0.0.0.0.
97.27.7.0.0.0.0.
12.0.4.
<20.20.
<10.0.
109.
2.
0030000000102000010130
05010201000010800030500010100000000000
00
5.6022.262.00
268.26-- --
126.00------
--0.09----
143.3839.6910.711.570.050.480.88
20.850.154.98--
50.00----
155.31
10.70
TION
5.1030.371.83
55.19------
27.66------
--0.08----
34.469.342.800.790.050.170.557.210.050.77--
36.51----
35.75
11.07
PERCENT OF SAMPLES INWERE LESS THAN OR95 75
EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
15.1296.007.00
348.00------
180.00------
--0.21----
210.0058.0016.003.300.100.802.60
31.000.206.80--
130.00--
227.00
29.00
10.6230.252.00
300.00------
145.00
--0.16--
165.0046.5012.501.850.100.651.00
28.000.205.35--
85.00----
177.50
13.00
4.006.651.00
280.00-- --
128.00 ----
0.05----
150.0040.0011.001.300.000.400.70
24.000.204.80--
30.00 --
158.00
7.00
1.003.901.00
238.00------
104.00------
0.03--
115.0031.508.001.100.000.350.6014.000.104.25--
20.00----
122.50
4.00
0.003.001.00
151.00------
88.00------
--0.01
97.0027.007.100.800.000.300.5012.000.104.10--
20.00----
109.00
2.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE REGRESSION SIZE COEFFICIENT
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
36471212121212121212121241
2.68*.286.353.0970.0307****.0762.381*
INDEPENDENT VARIABLE
LOGQLOGQ
KKKKQKQQKKQ
COEFFICIENT OFCONSTANT DETERMINATION
(r 2 )
-0.*
53.53.15.2.***JL
1.
58.*
682
18092
406
0.52.30.57.55.58.64.06.05.27.07.61.60.39
SIGNIFICANCE PROBABILITY
OF F
0 .0001.0001.0043.0055.0040.0018.448.508.0842.401.0026.0029.0001
STANDARD ERROR OF ESTIMATE
1.30*
19.124.56.391.79***i\
4.6923.9*
77
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 09209400 STATION NAME AND LOCATION: GREEN RIVER NEAR LABARGE, WYO.DRAINAGE AREA: 3,910 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PCB, TOTAL (UG/L)
SAM PLE SIZE
161144137147722582842
5463
602870
164
84848484848184848382152
151515181517151578
PCB, TOTAL IN BOTTOM MATERIAL (UG/KG) 9PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,
DISSOLVEDMERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
483
1592
MAXIMUM
22.0011100.001100.00710.0011.807.708.70
220.000.150.281.90
0.850.830.460.0111.001.00
330.0084.0023.0075.002.304.0012.00
200.000.8015.002.00
40.005.00
<20.0018.0080.006.00
30.00<20.00<1.00100.000.000.00
4400.00458.00
1.30880.00
MINIMUM
0.00228.00
0.00160.006.200.907.30
77.000.050.000.12
0.000.000.000.012.400.10
88.0023.006.706.000.200.100.40
20.000.000.80
<1.0040.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0021.000.000.00
330.00121.00
<0.502.00
STANDARD MEAN DEVIA
TION
9.022058.26
23.16367.56
9.383.07--
139.61--0.050.54
0.090.090.04-- --
167.8544.3813.3216.970.571.764.31
56.260.286.83__--------------------
228.96
--63.23
7.612416.90100.4288.391.261.60--
27.26--0.050.35
0.150.180.06------
42.4710.763.339.170.280.652.13
24.330.102.36--__------------------ ----
57.67
--121.29
PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN OR EQUAL TO THOSE SHOWN95
208342
954961178
178-01
000---
220581930
138
790
102-5
<2018806
30<20<1----
291
1291
.00
.48
.00
.40
.47
.19
.40
.00-.14.30
.35
.65
.13---.00.75.75.75.07.26.72.75.40.77.00-.00.00.00.00.00.00.00.00----.40
.30
.29
75
16.002797.50
15.00430.0010.373.758.20
160.00--0.070.68
0.110.080.04------
200.0052.7516.0019.000.602.005.4771.750.308.121.00--2.00
<20.004.00
42.503.00
<10.00<20.00<1.00 ------
265.00
<0.5072.25
50 (MEDIAN)
9.00839.50
3.00370.00
9.502.808.00
144.00--0.040.43
0.040.020.02------
170.0043.5013.0016.000.501.704.00
55.000.307.101.00--
<2.00<20.00
2.0030.00<2.00
<10.00<20.00<1.00--------
239.00
<0.5015.00
25
0.00582.00
2.00300.00
8.322.107.87
120.00--0.030.28
0.020.000.01------
140.0037.0011.0012.250.401.402.82
40.250.205.50<1.00--
<2.00<20.00<2.0015.00<2.00
<10.00<20.00<1.00--------
187.00
<0.509.00
5
0.00420.00
1.00220.00
7.260.907.52
86.00--0.010.14
0.000.000.00------
100.0027.258.077.150.300.801.80
23.250.102.63
<1.00--
<2.00<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00--------
135.60
<0.503.00
78
Table 3.--Statistical summaries of water-quality data from the Green River coa2 region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09209400 STATION NAME AND LOCATION: GREEN RIVER NEAR LABARGE, WYO.--Continued
WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDENT REGRESSION SIZE COEFFICIENT VARIABLE CONSTANT
COEFFICIENT OF SIGNIFICANCE STANDARDDETERMINATION PROBABILITY ERROR OF
(r 2 ) OF F ESTIMATE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
1191276666666666666366666574
**0.305*.103.0293j.**rT
.182
.544*
LOGQLOGQ
KKKKKKK
LOGQKK
LOGQ
**
25.5*5.432.14****
-15.022.0
*
0.06.32.76.48.61.56.40.25.19.12.60.69.27
0.0102.0001.0001.0001.0001.0001.0001.0001.0004.0045.0001.0001.0001
**
12.3 k
5.951.89***-n
10.626.6
*
79
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 09210500 STATION NAME AND LOCATION: FONTENELLE CREEK NEAR HERSCHLER RANCH, NEAR FONTENELLE, WYO.DRAINAGE AREA: 152 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
SEDIMENT, SUSPENDED
5151415111
101
561
10101010101010101010101061
10
49
2144560
1000108
1900
000
230601910087
6307
4015040
280279
304
.00 0.00
.00 9.10
.00 0.00
.00 46.00
.00 10.00
.70 8.70
.00 138.00
.15 0.15
.32 0.01
.30 0.01
.01 0.01
.00 160.00
.00 44.00
.00 11.00
.00 3.60
.30 0.10
.20 0.80
.30 2.10
.00 16.00
.20 0.10
.40 4.20
.00 <20.00
.00 <10.00
.00 <10.00
.00 280.00
.00 167.00
.00 3.00
7.76111.189.34
388 . 45----
158.60
------
190.0051.5014.706.920.221.844.20
37.000.136.08 ------
217.70
55.59
STANDARD DEVIATION
6.41128.5714.06
112.23 --
14.71
----
22.615.282.672.410.082.261.61
16.040.050.91 ------
33.47
77.31
PERCENT OF SAMPLES INWERE LESS THAN OR95 75
EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
1841239
474--
190-
---
230601910087
6307
40150
--
279
243
.50
.60
.50
.00--.00-
---.00.00.00.00.30.20.30.00.20.40.00.00--.00
.00
13.00162.0015.00
420.00----
162.25
------
202.5055.2516.759.330.301.705.25
47.750.206.7832.0087.50----
237.50
92.50
7.5040.002.00
385.00----
160.00--
------
195.0052.0014.006.650.201.004.40
35.500.106.2030.0035.00----
223.50
18.00
0.5024.001.00
340.00----
147.50--
----
167.5045.7512.754.630.180.902.75
24.750.105.60
<20.0015.00----
191.75
6.00
0.0016.001.00
266.00 --
138.00--
------
160.0044.0011.003.600.100.802.1016.000.104.20
<20.00<10.00
----
167.00
3.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
41511010101010101010101049
REGRESSION COEFFICIENT
0.0898*-.0791.320
-.0288-4.67***
-2.47.244.490.501
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQ
QKQ
LOGQKK
LOGQLOGQ
KKQ
0.*
17073.55.23.
***
8.-51.39.
650
476
92950568
COEFFICIENT OF DETERMINATION
(r2 )
0.62.29.60.77.62.94.48.44.03.72.89.82.71
SIGNIFICANCE PROBABILITY
OF F
0 .0001.0001.0086.0008.0071.0001.0259.0367.633.0018.0001.0003.0001
STANDARD ERROR OF ESTIMATE
8.77*9.8711.43.46.705***.894
5.5914.942.1
80
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09211200 STATION NAME AND LOCATION: GREEN RIVER BELOW FONTENELLE RESERVOIR, WYO. DRAINAGE AREA: 4,280 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUMSIZE
142 22143 8520130 35140 75085 1325 691 886 170
1 051 064 2
63 025 074 21 06 63 0
86 23086 6186 3586 3886 184 685 3086 13086 185 1817 21 <1002 40
17 817 <2017 918 29017 2818 3017 3017 <11 48
16 1400082 35717 <057 27
.00
.00
.00
.00
.40
.60
.70
.00
.03
.25
.60
.52
.39
.40
.01
.90
.70
.00
.00
.00
.00
.20
.30
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
MINIMUM MEAN
1.00302.00
0.00120.006.601.407.60
110.000.030.000.03
0.000.000.000.013.200.40
120.0011.007.605.100.200.101.20
26.000.000.001.00
<100.0040.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0048.0076.00161.00<0.501.00
9.761668.85
2.42416.8610.142.84--
138.59--0.070.50
0.110.080.05----
173.9545.6914.6521.150.691.755.2872.440.306.221.18-- -- -- ----------
2002.25254.01
--5.61
STANDARD DEVIATION
5.981672.78
4.1590.561.421.34--
16.99--0.050.37
0.090.080.28-- --
26.458.633.366.600.190.723.50
23.730.172.170.39----------------------
3335.4046.11--4.69
PERCENT OF SAMPLES INWERE LESS THAN OR EQUAL95 75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
195688
85591268
164-01
000---
220591934129
116082--8
<209
290283030<1-
14000331<017
.42
.00
.00
.50
.34
.18
.64
.00-.18.15
.32
.32
.07---.00.65.00.00.00.77.66.50.40.81.00--.00.00.00.00.00.00.00.00-.00.00.50.50
14.501630.00
2.00470.0011.003.208.40
150.00--0.100.61
0.130.110.03------
190.0051.0016.0026.000.802.075.75
88.250.307.301.00----2.00
<20.004.0035.002.50
20.00<20.00<1.00--
2125.00282.25<0.507.00
10.001020.00
1.00420.0010.302.508.20
139.00 0.050.44
0.090.070.02 ----
170.0046.0014.0021.000.651.604.7072.500.306.301.00-- 2.00
<20.002.00
20.002.00
<10.00<20.00<1.00--
1070.00262.50<0.504.00
4.00749.00
1.00360.00
9.101.808.00
122.25--0.030.29
0.050.010.01------
150.0040.0013.0017.000.601.403.60
55.500.205.301.00----
<2.00<20.00<2.0015.00<2.00
<10.00<20.00<1.00--
360.00219.50<0.502.50
2.00364.00
1.00280.50
7.331.437.80
110.00--0.010.13
0.010.000.01------
130.0034.0010.0010.350.400.921.96
30.700.203.091.00----
<2.00<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00--
76.00170.60<0.502.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
129140858585858585838485
REGRESSION COEFFICIENT
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 81SEDIMENT, SUSPENDED 56
*j.j.
0.295.0888*** k*.262.515*
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQLOGQ
KKKKKKKKKK
LOGQ
**.u
50.8.*****
-37.38.
*
660
09
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.10.30.43.69.59.18.47.31.02.10.68.72.04
0 .0003.0001.0001.0001.0001.0001.0001.0001.222.0028.0001.0001.130
STANDARD ERROR OF ESTIMATE
**j.
14.85.60*****
13.424.6
*
81
Table 3.--Statistical summaries of water-quality data from tAe Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 09213500 STATION NAME AND LOCATION: BIG SANDY RIVER NEAR FARSON, WYO. DRAINAGE AREA: 322 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR
MINIMUM MEAN DEVIA- 95SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA + ORGANIC TOTALNITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,SEDIMENT, SUSPENDED
757352698
1011561
10101010101010109
10101062
1075
27804
3200390
86700000
57212
18123
300
1350780<10570128
4160
.50
.00
.00
.00
.90
.00
.01
.06
.17
.44
.01
.00
.00
.30
.00
.00
.50
.90
.00
.20
.00
.00
.00
.00
.00
.00
.00
0.004.501.00
42.007.2012.000.010.060.010.030.0115.004.600.801.900.200.600.404.300.105.30
<20.0020.00
<10.00460.0026.004.00
12.99175.69250.29141.14
--35.00----------
36.4012.281.386.770.471.131.74
14.35 7.47--
186.00----
67.20355.93
TION
7.10 24186.30 553652.42 210578.43 290__15.53 67__ __--__
14.05 575.12 210.50 24.75 180.24 10.55 21.20 38.81 30__2.60 13
50222.32 780
____
30.60 128630.49 1616
75EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.80
.20
.00
.00-.00-----.00.00.30.00.00.50.90.00-.00.00.00--.00.00
18 . 00309.00106.25192.50
42.75-- ------
48.2516.251.738.230.601.223.0519.25--8.75
40.00212.50
--
90.00386.00
14.0096.0027.50120.00
--36.50--------
39.0013.001.356.900.451.151.35
12.50--6.55
<20.00130.00
--
66.50176.00
9.0029.004.2572.50__
23.25 --__--__
21.757.150.902.700.270.750.777.35--5.58
<20.0060.00--
41.0049.00
0.0014.701.65
45.00 12.00__ __----15.004.600.801.900.200.600.404.30 5.30
<20.0020.00--
26.0010.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
47661010101010101010101065
REGRESSION COEFFICIENT
j.*0.291.252.0938
-.00190.0877.00414.00990.0189.142.561
~f\
INDEPENDENT VARIABLE
QQKKKQKKKKKKQ
REGRESSION CONSTANT
**5.58
10.92.791.70
-2.10.0508.129
-.174-.0506
10.5*
COEFFICIENT OF DETERMINATION
(r2 )
0.17.18.94.86.90.51.91.83.87.67.70.90.41
SIGNIFICANCE PROBABILITY
OF F
0 .0039.0004.0001.0001.0001.0212.0001.0003.0001.0039.0026.0001.0001
STANDARD ERROR OF ESTIMATE
-.»-
JL
4.085.601.73.370
1.49.104.206.733
5.1210.3
k
82
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09214500 STATION NAME AND LOCATION: LITTLE SANDY CREEK ABOVE EDEN, WYO. DRAINAGE AREA: 134 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
STANDARD MINIMUM MEAN DEVIA-
SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
13812182
1332
365985
19
1848531
5959595959595959595945444945441
58
4102
2449332001080
88
166000
0205
3209720120
33
24390
0301
603
<206
2301820
<20<1
400760
<01560
.50
.00
.00
.00
.10
.60
.00
.07
.04
.85
.18
.00
.77
.80
.00
.00
.00
.00
.00
.70
.00
.00
.90
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.001.00
95.007.707.101.000.000.000.05
0.000.000.015.80
34.0011.001.705.700.400.801.20
16.000.101.80
<1.00<20.00<2.00
<20.002.00
40.00<2.00
<10.00<20.00<1.00
400.0064.00
<0.502.00
8.3639.41142.96394.80
----
73.73 --0.47
0.040.110.09--
109.1033.036.40
40.461.601.978.63
108.150.269.83__--__-------- ----__
255.00
--132.44
TION
7.5861.14
475.40211.17
----
32.54-- 0.21
0.040.300.12
54.6916.553.47
24.760.660.765.8571.310.134.57 __----__ -- ------
139.58
--225.26
PERCENT OF SAMPLES INWERE LESS THAN OR EQUAL95 75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
21.00141.90
1295.00863.00
--8.43
157.00----0.85
0.180.580.31__
240.0072.0014.0089.002.903.50
21.00230.00
0.4018.00--__ ____------------
546.05
__609.95
15.0059.0035.00
490.00 8.10
85.00__--0.59
0.060.070.11--
130.0039.008.20
55.002.002.3013.00
140.000.3012.00__-- __---------- --
330.75
__161.25
8.509.607.50
360.00--7.70
74.00----0.51
0.030.030.04--
98.0029.005.8035.001.601.808.20
96.000.309.40------------------
239.50
__36.50
0.005.202.00
245.00__7.50
56.00----0.29
0.020.010.03--
78.0024.004.00
22.001.101.504.00
60.000.206.30------------ --------
162.75
10.00
0.000.561.00
120.00--7.19
23.00----0.05
0.000.000.02--
37.0011.002.007.400.500.901.50
20.000.104.50__---------- --------
67.90
4.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
661154646464646464646464581
REGRESSION COEFFICIENT
**0.137.270.0800.0169.121.00292.00322.0234.349.686*
INDEPENDENT VARIABLE
QLOGQ
KKKKKKKKKKQ
COEFFICIENT OF SIGNIFICANCE CONSTANT DETERMINATION PROBABILITY
**
17.1.1.-.
-7.
-.-30.-20.
JU
380263728941669159705
0.37.40.78.95.94.94.97.82.77.62.94.98.45
0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
**
15.513.14.39.882
4.30.284.368
3.8918.222.0
~"
83
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 --Continued
STATION NUMBER: 09216000 STATION NAME AND LOCATION: BIG SANDY RIVER BELOW EDEN, WYO.DRAINAGE AREA: 1,610 SQUARE MILES
DESCRIPTIVE STATISTICSCAM-
WATER QUALITY CONSTITUENT JAM ^^ ^^ ^
SIZE
TEMPERATURE (DEC C) 140 25 STREAMFLOW, INSTANTANEOUS (FT3/S) 130 1250 TURBIDITY (NTU) 117 4200SPECIFIC CONDUCTANCE (MICROS IEMENS) 132 4300OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
55 1265 976 29045 054 2
54 123 266 11 05 145 1
76 140076 41076 14076 60076 976 2576 8476 180075 375 1714 71 450
14 514 <2014 916 26014 1315 3014 4014 54 2408 07 11 2700
75 2910
14 <093 3030
.50 0.
.00 14.
.00 0.
.00 340.
.50 7.
.10 7.
.00 120.
.29 0.
.10 0.
.50 0.
.90 0.
.70 0.
.01 0.
.00 4.
.90 0.
.00 280.
.00 70.
.00 26.
.00 110.
.60 2.
.00 0.
.00 18.
.00 360.
.60 0.
.00 0.
.00 1.
.00 450.
.00 <2.
.00 <20.
.00 <2.
.00 <10.
.00 <2.
.00 <10.
.00 <20.
.00 1.
.00 40 .
.00 0,
.00 0,
.00 2700,
.00 670.
.50 <0,
.00 3,
00 00 00003080000022
020800018010000000,0080100000,2020,000000,00,00,00,00.00.00.00.00.00.00.00.00
.50
.00
9.17 64.16 107.95
2565.539.75--
225.090.070.82
0.580.690.09------
857.50208.8681.28
343.685.184.02
48.591275.66
1.0411.252.64----------------2.29--------
2110.80
--187.29
STANDARD DEVIA TION
7.15 113.52 491.52737.65
1.18--
31.960.060.40
0.420.570.24------
260.5165.9927.6286.671.152.6211.25
349.520.442.721.95----------------1.49--------
533.89
--489.11
PERCENT OF SAMPLES INWERE LESS THAN95
21 151 357
3600118
26401
120---
1300313131481
75
671700
1157-5
<209
2601330405----
2764
<0872
.00
.65
.00
.00
.86
.50
.05
.24
.67
.42
.56
.44---.00.00.50.50.01.23.30.00.30.00.00-.00.00.00.00.00.00.00.00----.00
.50
.30
75
15.37 66.00 15.00
3000.0010.608.20
250.000.080.99
0.920.890.06------
1100.00250.0099.50
390.005.774.35
56.001600.00
1.1013.004.00--3.00
<20.005.25
50.005.25
30.0020.003.25--------
2580.00
<0.50107.50
OR EQUALWHICH VALUESTO THOSE
50 25 (MEDIAN)
8.75 44.50 4.00
2700.009.408.10
230.000.050.76
0.500.560.03------
905.00220.0085-00350.00
5.153.80
48.501400.00
1.0012.002.00--2.00
<20.003.50
25.00<2.0020.0020.002.00--------
2260.00
<0.5049.00
2.50 28.00 2.00
2000.009.008.00
201.250.030.54
0.230.390.01------
650.00160.0058.50282.50
4.423.35
42.25927.50
0.9010.001.00--
<2.00<20.00<2.00
<10.00<2.00
<10.00<20.00
1.00--------
1610.00
<0.5027.50
SHOWN5
0.00 17.55 1.00
1213.007.867.80
160.000.010.29
0.030.090.01------
415.5094.4037.85197.00
3.441.60
29.85697.00
0.705.921.00--
<2.00<20.00<2.00
<10.00<2.00
<10.00<20.00
1.00--------
1216.00
<0.5011.40
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
108122656565656565656565
REGRESSION COEFFICIENT
3.551960.
.0414
.325*.0355.126**.0147.522
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 64 -2,030SEDIMENT, SUSPENDED 77 *
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQ
KKKKKKKKK
LOGQQ
-1215870112-49.
*-17.
3.**
9.-159
5,350*
2
034
85
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.74.63.56.61.47.66.69.22.00.55.79.77.31
0 .0001.0001.0001.0001.0001.0001.0001.0001.805.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
26244722.0157
*15.351.4**8.02
161261
*
84
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, I981--Continued
STATION NUMBER: 09216050 STATION NAME AND LOCATION: BIG SANDY RIVER AT GASSON BRIDGE, NEAR EDEN, WYO. DRAINAGE AREA: 1,720 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
11310847
10732
2757134
213542
575757575757575756571211141311
1757
161
25277650
60001418
320001
0110
1600360200730235
1502600
4222
510<2
<202
90<260
<204
35004040
<02190
.50 0.
.00 19.
.00 1.
.00 1200.
.40 8.
.20 1.
.50 7.
.00 139.
.04 0.
.12 0.
.60 0.
.76 0.
.60 0.
.80 0.
.01 0.
.00 75.
.00 19.
.00 6.
.00 280.
.00 4.
.60 0.
.00 4.
.00 690.
.50 0.
.00 0.
.00 2.
.00 450.
.00 <2.
.00 <20.
.00 2.
.00 30.
.00 <2.
.00 20.
.00 <20.
.00 4.
.00 70.
.00 1440.
.50 <0.
.00 6.
0000000020007000040139
2600000100009000503090009020000000000000000000000000
5000
9.6765.6856.72
3597.01------
250.61-- --
--0.520.12
1101.32226.51130.30513.16
6.963.66
54.721826.14
1.6111.25--------------------
1208.242906.67
--194.48
PERCENT OF SAMPLES INSTANDARD WERE LESS THANDEVIATION
8.3143.19127.50
1023.23 ----
40.12--
--0.440.28--
307.0259.9140.88122.262.390.98
21.32482.43
0.813.07---------- ------
1005.03702.28
--333.00
95 75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
23.50126.00410.00
5300.00----8.46
311.00------
--1.600.69
1510.00320.00191.00730.00
8.525.10
111.002500.00
4.0316.10--------------------
3500.003942.00
--888.00
17.0079.5040.00
4199.99 --8.20
290.00-- --
--0.830.09
1350.00270.00165.00610.00
7.604.10
59.002250.00
1.5013.00-------- ----------
1900.003520.00
--212.50
9.0057.5010.00
3500.00----8.20
250.00----
--0.400.04
1200.00240.00130.00510.00
6.703.80
52.001800.00
1.3511.00-- --------------
830.002910.00
--83.00
0.5039.006.00
2800.00 --8.00
220.5------
--0.200.02--
875.00185.0098.50
410.005.953.50
44.001450.00
1.2010.00-------- ---- --
370.002350.00
--46.50
0.0023.002.00
2088.00----7.82
171.80------
--0.000.01--
659.00129.0073.90
327.004.781.21
35.601090.00
1.005.31 ------------------
70.001778.00
--26.20
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
46-984444444444444444444453
REGRESSION COEFFICIENT
**0.0390.333.0576.0456
-552------.534.756*
INDEPENDENT REGRE VARIABLE CONS
QLOGQ
KKKK
LOGQLOGQ
KQKKQ
101-163
7-42
1,460
-20727
COEFFICIENT OF SIGNIFICANCE SJi!: DETERMINATION PROBABILITY 1AN1 (r 2 ) OF F
*if
.55
.0
***
.7*
0.27.49.73.81.66.83.77.24.10.17.87.84.34
0 .0002.0001.0001.0001.0001.0001.0001.0007.0382.0056.0001.0001.0001
STANDARD ERROR OF ESTIMATE
**
20.414135.518.159.2
-V
**
183285
*
85
Table 3.--Statistical summaries of water-guaJity data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 09216300 STATION NAME AND LOCATION: GREEN RIVER AT BIG ISLAND, NEAR GREEN RIVER, WYO. DRAINAGE AREA: 7,300 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
SEDIMENT, SUSPENDED
86733781382
5184
122
124701
848484848483848484812222
1584
42
2277101509501218
172000
0200
31081339526
21330
112
10060
<1032
2200634
549
.00 0.
.00 389.
.00 1.
.00 340.
.20 7.
.40 1.
.90 7.
.00 107.
.10 0.
.06 0.
.97 0.
.07 0.
.40 0.
.84 0.
.01 0.
.00 130.
.00 32.
.00 11.
.00 16.
.50 0.
.30 0.
.00 3.
.00 46.
.20 0.
.00 0.
.00 80.
.00 20.
.00 <10.
.00 14.
.00 440.
.00 191.
.00 3.
0000000060309000100325
0700000100000000601000000000000000000000
00
9.241441.16
14.08624.42
9.61--
143.27------
--0.200.04--
224.1755.6420.9849.821.411.938.37
172.900.375.65-- --
1029.33403.10
45.50
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN ORDEVIA- 95TION
7.33 211253.19 486732.71 123139.15 897
1.23 11__
817.07 167__--__
__0.52 20.11 0--
43.47 2909.62 705.44 3119.33 850.45 20.74 23.54 15
64.66 2870.14 02.19 9 ------
598.44 2200103.12 569
. 97.58 322
75EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.00
.99
.00
.00
.63-.70.75---
-.07.15-.00.25.00.75.27.96.00.50.60.68----.00.50
.65
16.63 9.001670.00 1010.00
10.00730.0010.65--8.50
159.00------
--0.110.03--
257.5062.0025.0062.001.702.3010.00
220.000.406.90--------
1500.00477.50
46.00
2.00630.00
9.55 8.30
149.00------
--0.040.02--
230.0057.0021.0046.501.401.907.75
165.000.405.90-- ----
780.00401.00
16.00
2.00821.00
1.00515.00
8.47--8.20
130.00------
--0.020.01--
200.0050.2517.0037.251.101.605.60
140.000.304.35------
520.00348.50
8.00
0.00400.60
1.00395.50
7.79--7.90
120.00 --
--0.000.00--
142.5037.2512.0018.250.621.023.80
59.250.202.52-- --
440.00213.50
3.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
37696767676767676667676730
REGRESSION COEFFICIENT
*-374
*-121
.0498-15.7
.116
.00258V"
.0175
.410
.655*
INDEPENDENT REGRESSION VARIABLE CONSTANT
KLOGQ
KLOGQ
KLOGQ
KKKKKKK
*1,770
*59524.869.2-23.8
-.226*
-2.73-84.1-7.37
*
COEFFICIENT OF DETERMINATION
(r 2 )
0.00.57.16.61.55.65.74.66.03.52.79.80.01
SIGNIFICANCE PROBABILITY
OF F
0 .736.0001.0010.0001.0001.0001.0001.0001.135.0001.0001.0001.610
STANDARD ERROR OF ESTIMATE
*90.7
*27.16.133.199.44.250*2.29
28.344.5*
86
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09216527 STATION NAME AND LOCATION: SEPARATION CREEK NEAR RINER, WYO. DRAINAGE AREA: 53 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT SAM- STANDARD PLE MAXIMUM MINIMUM MEAN DEVIA-SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
45762939201024225
1518
187
193
222222222222222222226
22666
2267663
226
31
2162
7602390
1058
360003
0010
1100150180200
21344
12000
102
1704
<209
5806
90201
530001970
<01820
.00
.00
.00
.00
.20
.10
.60
.00
.10
.22
.20
.53
.15
.60
.03
.00
.00
.00
.00
.70
.00
.00
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.005.00
220.007.501.607.80
91.000.020.010.49
0.000.010.030.01
95.0024.008.6015.000.703.202.50
48.000.102.80
<1.0050.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00
460.00163.00<0.5011.00
8.025.45
127.431088.92
9.012.99--
230.27--0.081.37
0.11--0.33--
467.0574.4168.5780.451.525.5113.16
385.360.286.91--
110.91-------- ------
773.95--
363.06
TION
6.549.51
177.78587.67
0.811.08--
84.21--0.060.84
0.12--0.43--
271.1334.4146.3956.350.652.08
10.47303.54
0.112.10--
33.93---- ------ ----
490.18--
436.91
PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN95 75
OR EQUAL TO THOSE50 25
SHOWN5
(MEDIAN)
19.3525.15
630.002379.99
10.205.108.58
358.50--0.223.20
0.53--1.60--
1085.00147.00178.50200.00
2.7012.1342.95
1170.000.4810.00--
170.00------
512.50----------
1941.50<0.50
1808.00
13.508.17
135.001580.00
9.673.828.37
300.75--0.121.95
0.13--0.37--
612.5096.0091.25117.50
1.976.3817.75
560.000.328.30--
132.50 ----
85.00----------
1070.00<0.50
454.00
8.001.05
50.00975.00
9.052.608.20
238.50--0.060.99
0.07--0.15--
370.0067.0049.5064.001.405.159.35
275.000.307.00--
110.00------
40.00----------
598.00<0.50
212.00
1.500.00
22.50670.00
8.282.208.10
167.50--0.030.77
0.04--0.10--
285.0052.7536.2536.000.973.885.95
160.000.205.47--
80.00------
27.50----------
415.50<0.50
104.00
0.000.007.20
240.007.511.607.80
91.15--0.010.49
0.00--0.03--
103.2524.7510.3116.500.703.282.89
58.800.102.81--
53.00------
<10.00----------
180.85<0.5023.60
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
26372121212121212121212124
REGRESSION COEFFICIENT
**0.115.449.0557.0773.0941.00103*.0173.511.828*
INDEPENDENT VARIABLE
KLOGQ
KKKKKKKKKKK
COEFFICIENTCONSTANT DETERMINATK
(r 2 )
**
103-25.13.
-16.-22.
*-5.
-169-129
*
4403397
59
0.34.49.66.98.92.98.97.86.43.92.96.99.34
OF SIGNIFICANCE )N PROBABILITY
OF F
0 .0018.0001.0001.0001.0001.0001.0001.0001.0012.0001.0001.0001.0029
STANDARD ERROR OF ESTIMATE
* >v
48.642.19.476.679.54.247
>v
3.0559.156.1
~/;
87
Table 3.--Statistical summaries of water-quality data from the Green River coal region, jbased on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09216545 STATION NAME AND LOCATION: BITTER CREEK NEAR BITTER CREEK, WYO. DRAINAGE AREA: 308 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUMSIZE
150 29143 157141 7200148 450079 1167 880 978 5303 0
70 076 4
74 06 0
77 63 0
78 34078 7178 3978 84078 2678 778 9278 140078 278 186 2
77 4606 46 <206 8
76 7706 3
12 406 206 16 4600
78 2740
6 0104 21900
.00
.00
.00
.00
.90
.70
.30
.00
.05
.46
.70
.95
.22
.20
.03
.00
.00
.00
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
MINIMUM MEAN
0.0.1.
280.6.0.7.
91.0.0.0.
0.0.0.0.
66.15.5.
58.1.1.4.
56.0.0.1.
10.<2.
<20.2.
<10.<2.
<10.<20.<1.12.
295.
<0.22.
0000400070808000010005
00030101.00,00,0000,60,30,900030.50,00000000.000000,00.00.00.00.00
.50
.00
10.616.28
341.381754.39
9.333.32--
304.38--0.091.17
0.14--0.36--
211.0839.6327.23
348.2210.762.95
38.72589.82
0.867.85--
209.35------------------
1239.05
--1859.30
STANDARD DEVIATION
8.8718.32
854.44612.65
1.321.60--
78.49--0.090.80
0.16--0.84--
63.1414.628.14
124.154.111.12
15.30200.44
0.313.82--
72.35------------------
383.79
--4193.91
PERCENT OF SAMPLES INWERE LESS THAN95 75
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
25.0043.00
2180.002600.00
11.606.589.30
410.50--0.252.74
0.42--1.62--
310.5063.0538.05
532.0018.055.51
63.40845.00
1.4013.00--
324.00------
331.50--
40.00-- --
1807.50
10954.96
18.122.60
220.002100.00
10.404.408.80
350.00--0.131.38
0.17--0.24--
260.0052.0034.00
422.5013.003.30
47.00700.00
1.1011.00--
250.00------
130.00--
<10.00------
1440.00
--649.50
10.501.10
99.001765.00
9.303.008.50
316.50--0.060.93
0.08--0.15--
210.0041.0028.00
350.009.902.80
38.00600.00
0.808.30--
200.00------
70.00--
<10.00 --
1265.00
--252.00
1.000.56
55.001500.00
8.202.208.30
280.00--0.030.68
0.03--0.08--
160.0027.7523.00
280.008.202.17
29.50477.50
0.605.90--
170.00------
40.00--
<10.00------
1010.00
--147.25
0.000.2515.40
569.007.201.128.00
120.00--0.000.38
0.01--0.04--
99.2516.009.95
109.155.291.60
12.81170.000.400.98--
98.00------
<10.00--
<10.00------
400.55
--67.50
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
121130656565656565656565
REGRESSION COEFFICIENT
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 65SEDIMENT, SUSPENDED 83
**0.113***.196
.*-*.0234.320.610*
INDEPENDENT REGRESSION COEFFICIENT OF SIGNIFICANCE INDEPENDENT REGRESSION DETERJ^NATION PRoBABILITY
LOGQLOGQ
KK
LOGQKKK
LOGQKKK
LOGQ
99
-6
-311
135
**.7***.41**.41.4
*
0.30.47.59.03.05.16.76.49.08.63.79.79.45
0 .0001.0001.0001.136.0749.0009.0001.0001.0253.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
**
44.6***
52.0**8.50
79.6149
rt
88
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09216562 STATION NAME AND LOCATION: BITTER CREEK ABOVE SALT WELLS CREEK NEAR SALT WELLS, WYO. DRAINAGE AREA: 836 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
11311211193545055555053
542
5411
555454555455555555556
55666
556666
55
682
26776
340008000
1288
8500
16
41380
560059010002700
2234
19006400
1151
17003
2012
12006
3303010
12300
051800
.50 0.
.00 0.
.00 1.
.00 600.
.10 6.
.40 0.
.80 7.
.00 57.
.45 0.
.00 0.
.50 0.
.50 0.
.60 0.
.50 8.
.40 0.
.00 0.
.00 32.
.00 19.
.00 100.
.00 2.
.00 2.
.00 14.
.00 230.
.20 0.
.00 0.
.00 <1.
.00 110.
.00 <2.
.00 <20.
.00 <2.
.00 <10.
.00 <2.
.00 50.
.00 10.
.00 <1.
.00 530.
.60 <0.
.00 22.
00000000308060000028
0016005040000000000070000010000000000000000000000000
5000
8.4322.07
1980.533468.60
9.783.48
313.090.111.92
0.73--0.43----
1260.55159.91215.00708.55
8.2711.63
495.931750.18
0.695.30--
494.55 -- --------
3527.11
--5074.46
STANDARD DEVIATION
7.9487.56
4873.611946.23
1.511.65--
141.340.112.68
1.14--0.83----
948.0295.18179.56551.67
3.936.34
438.421319.92
0.213.66--
340.37---- ---- --
2569.37
--10552.99
PERCENT OF SAMPLES INWERE LESS THAN95 75
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
22.15106.05
10920.007030.00
11.806.608.70
570.800.397.73
4.17--2.70----
2900.00307.50602.50
2040.0016.2522.80
1620.004539.99
1.0213.20--
1300.00------
476.00--------
9483.99
--29059.93
15.757.15
1400.005000.00
11.204.258.50
370.000.171.70
0.90--0.25
1800.00200.00277.50890.00
9.7315.00
670.002300.00
0.907.60--
590.00 ----
100.00------
4580.00
--3387.50
8.001.40
110.003000.00
9.853.008.30
310.000.081.30
0.31--0.09----
1100.00135.00170.00610.00
7.2011.00
380.001400.00
0.704.40--
410.00------
60.00--------
2860.00
--634.50
0.000.10
20.001700.00
8.502.278.20
230.000.040.83
0.03--0.05
660.00117.5096.00
330.005.586.30
180.00910.00
0.602.60--
260.00------
30.00------
1750.00
--201.50
0.000.003.6
964.007.221.117.80
110.000.000.31
0.00--0.01----
168.0033.7525.00118.00
3.452.94
45.20260.00
0.280.40--
138.00------
<10.00--------
619.20
--34.75
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
78783838373738373838383858
REGRESSION COEFFICIENT
***0.254.0293.0454.140.00100*.116.349.702
84.1
RFfRFScjTOW COEFFICIENT OF SIGNIFICANCEINDtPENDEJNl KtURtSSION r,pTpRMTVATTnV PRORiRTTTTVVARIABLE CONSTANT DETERMINATION PROBABILITY
LOGQLOGQ
KKKKKKKKKKQ
-1928
-19-5
3
-88-51-48
3010
** *.2.3.9.82.51*.6.2.1
0.28.46.37.63.54.77.86.50.39.86.85.91.69
0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
**»*.»
35250.246.3102
1.85A.
86.6266408
6800
89
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09216565 STATION NAME AND LOCATION: SALT WELLS CREEK NEAR SOUTH BAXTER, WYO. DRAINAGE AREA: 35 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUMSIZE
208 29174 19199 9000198 400063 1359 566 863 4905 0
53 058 9
58 010 060 35 0
63 100063 17063 14063 34063 663 1263 19063 80062 063 218 32 <100
63 2508 38 <208 7
63 5208 10
10 4408 <208 27 120000
63 1630
8 1144 18800
.50
.00
.00
.00
.60
.70
.80
.00
.05
.25
.80
.47
.33
.00
.03
.00
.00
.00
.00
.60
.00
.00
.00
.70
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL
MINIMUM MEAN DEVIA- 95
0.0.1.
440.6.0.7.
170.0.0.0.
0.0.0.0.
200.39.24.43.1.2.4.
74.0.4.1.
<100.70.<2.
<20..<2.
<10.<2.10.
<20.<1.
100.343.
<0.6.
0000000030706000010015
00010101000000003060600010,2000,0000,000000,0000,00,00.00.00.00
.50
.00
9.041.42
392.231090.08
9.502.22--
269.25--0.071.05
0.100.130.26--
482.5487.3064.4091.521.825.4115.74
382.210.3211.25----
139.21----------
169.00------
822.63
--875.08
TION
8.21 232.57 6
1006.20 2300339.11 1500
1.57 111.03 4
850.58 326--0.07 01.39 3
0.12 00.13 00.57 1--
142.51 67827.87 13019.04 9040.89 1660.73 21.85 9
22.77 22146.44 596
0.11 02.96 15----
36.65 226------
366--
151.98 440__----
248.04 1136
--2268.96 4797
75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.00
.30
.00
.00
.78
.60
.70
.80-.23.08
.43
.33
.49-.00.00.20.00.70.68.20.00.50.80--.00---.00-.00---.00
-.50
15.001.40
260.001282.50
10.802.608.50
300.00--0.101.01
0.170.280.15
590.00110.0077.00100.00
1.806.2017.00
480.000.4013.00----
150.00------
120.00--
267.50--_ --
997.00
--623.50
8.500.50
25.001100.00
9.602.008.30
270.00--0.040.69
0.040.040.06--
480.0085.0064.0085.001.705.0012.00
370.000.3011.00----
140.00-- --
70.00--
135.00------
807.00
--106.00
0.000.165.00
907.508.201.508.10
230.00--0.020.44
0.010.020.03--
390.0065.0054.0075.001.604.3010.00
300.000.209.10--
120.00 --
40.00
45.00------
668.00
28.00
0.000.012.00
600.006.680.907.93
200.40--0.000.33
0.000.010.01--
242.0045.6029.0046.201.302.845.24
112.000.205.52----
82.00 --
20.00--10.00------
399.60
10.50
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
154160505050505050505050
REGRESSION COEFFICIENT
***0.479.0911.0616**.00521
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 50SEDIMENT, SUSPENDED 105
*.507.836 £
INDEPENDENT VARIABLE
QLOGQ
KKKKKKK
LOGQKK
LOGQ
REGRESSION CONSTANT
*^*
-63.6-16.0-6.07* if
-.479*
-190-125
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r2 ) OF F
0.37.41.44.86.75.82.24.08.56.09.84.79.27
0 .0001.0001.0001.0001.0001.0001.0003.0511.0001.0380.0001.0001.0001
STANDARD ERROR OF ESTIMATE
* k
~k
49.913.57.36**1.19*
56.4111
*
90
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 09216576 STATION NAME AND LOCATION: GAP CREEK BELOW BEANS SPRING CREEK NEAR SOUTH BAXTER, WYO. DRAINAGE AREA: 36 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAM PLE MAXIMUM MINIMUM MEANSIZE
64 25.00 0.0066 14.00 0.2050 800.00 1.0060 2020.00 270.0019 12.80 7.1016 7.30 1.0025 8.90 7.9021 364.00 153.006 0.08 0.01
15 0.12 0.0117 1.80 0.24
17 0.21 0.028 0.20 0.01
18 0.85 0.024 0.03 0.01
21 790.00 290.0021 120.00 59.0021 120.00 30.0021 110.00 16.0021 1.70 0.4021 9.00 3.4021 27.00 12.0021 610.00 120.0021 0.60 0.3021 14.00 7.704 3.00 1.001 <100.00 <100.00
21 260.00 80.004 2.00 <2.004 <20.00 <20.004 3.00 <2.00
21 1700.00 <10.004 8.00 <2.005 160.00 70.004 <20.00 <20.004 2.00 <1.009 4600.00 11.00
21 1210.00 382.00
4 <0.50 <0.5053 13200.00 10.00
SAMPLE REGRESSION SIZE COEFFICIENT
49 51.860 *21 *21 .41621 .037121 .079221 .078721 .0010921 3.4021 .0093921 .456
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 21 .719SEDIMENT, SUSPENDED 48 701
PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR EQUAL TO THOSE SHOWNDEVIA- 95 75 50 25 5TION (MEDIAN)
9.061.65
64.92909.92
9.892.61--
243.52--0.050.77
0.09 0.19--
442.3886.2955.1940.670.795.0517.00
255.710.4410.80--
129.05-- ------------
617.76
--642.53
7.67 24.25 15.752.47 5.70 1.70
129.93 318.00 61.25401.24 1795.00 1020.00
1.84 12.80 11.301.54 7.30 3.30
8.84 8.4549.05 361.00 269.00__0.04 0.12 0.070.47 1.80 1.15
0.07 0.21 0.15__0.20 0.85 0.22__
151.82 790.00 510.0016.05 120.00 97.0028.70 120.00 68.0028.81 109.00 55.500.41 1.68 1.151.73 8.93 6.004.23 26.80 19.50
164.97 609.00 340.000.08 0.60 0.501.62 13.90 12.00____
45.04 254.00 155.00 __
1556.00 70.00__ ______
259.72 1209.00 725.00
__2127.96 3860.92 343.50
REGRESSION STATISTICS
INDEPENDENT REGRESSION nF?!^MTNA?To!f VARIABLE CONSTANT DETERMINATION
QLOGQ
KKKKKK
LOGQKKKQ
-19.6 0.77* .46* .44
62.4 .9652.4 .68
-17.1 .97-31.1 .95
-.205 .895.26 .748 . 43 .63
-161 .97-38.9 .98
-635 .77
8.250.66
21.00745.00
9.302.408.30
239.00 0.030.59
0.07 0.12--
400.0087.0044.0027.000.604.3016.00
190.000.4011.00----
110.00 ----
60.00------ --
520.00
--98.00
1.00 0.000.50 0.314.75 1.00
642.50 512.508.30 7.101.40 1.008.20 7.93
208.50 156.90 0.02 0.010.44 0.24
0.04 0.02__0.07 0.02__
325.00 291.0073.50 59.8034.50 30.2018.00 16.200.50 0.403.85 3.4113.50 12.00
130.00 120.000.40 0.309.35 7.80 __
95.00 81.00 __
30.00 <10.00__-- __
424.00 382.00
35.00 17.40
SIGNIFICANCE STANDARD PROBABILITY ERROR OF
OF F ESTIMATE
0.0001.0001.0010.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
61.0**
32.99.345.346.75.140.911
2.6528.142.0
1080
91
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09216750 STATION NAME AND LOCATION: SALT WELLS CREEK NEAR SALT WELLS, WYO. DRAINAGE AREA: 526 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
831187477282530272727
273
272
282828282828282827284
28444
2846441
27
468
24823
912006700
1188
3530
90
22
270
1800290250660
725
440220C
1121
9706
<2017
21003
30<20
20
3900
<080700
.00
.00
.00
.00
.60
.20
.60
.00
.37
.00
.80
.60
.00
.02
.00
.00
.00
.00
.40
.00
.00
.00
.90
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.0015.00
420.004.501.407.70
100.000.000.46
0.010.360.110.01
370.0081.0041.00100.002.001.40
49.00420.00
0.203.801.00
240.00<2.00
<20.002.00
<10.00<2.00
<10.0020.001.000.00
827.00
<0.50175.00
10.1920.44
6781.762532.21
8.914.07
194.740.118.85
0.58--3.83--
951.43174.29126.71265.00
3.6513.48
156.541090.36
0.517.30--
569.29-- --------------
1921.96
--13627.46
DEVIA- 95TION
6.51 2083.78 54
12466.40 253241074.71 5000
1.68 111.92 7
861.71 3170.11 018.11 66
0.64 2__5.64 22
325.53 166550.63 29053.82 232122.28 570
1.14 65.19 24
85.94 363440.99 2065
0.30 12.00 11--
212.98 943------
1263---- ----
744.02 3700
--17015.39 47659
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.00
.85
.90
.00
.51
.84
.60
.40
.35
.40
.48-.60-.00.00.00.00.41.10.50.00.38.55-.00---.00-----.00
-.93
15.0011.00
8700.003000.00
10.555.558.50
240.000.216.20
0.75 5.10--
1200.00205.00170.00307.50
4.1015.75
200.001375.00
0.508.48--
787.50------
107.50----------
2270.00
--22274.96
11.502.15
2100.002300.00
8.503.808.35
220.000.063.20
0.36--2.20--
970.00170.00120.00255.00
3.6514.00
135.001050.00
0.507.10
515.00-- --
70.00---- --
1850.00
--5389.99
3.500.00
942.501800.00
8.022.458.20
150.000.031.60
0.16--0.78--
712.50145.0083.50190.002.9010.0095.50765.00
0.405-68--
405.00------
30.00---- --
1380.00
--1725.00
0.000.00
76.251299.00
5.531.587.81
102.800.000.48
0.02--0.12--
419.5086.4049.55109.002.052.30
52.60429.00
0.243.89--
244.50------
<10.00-- ------
838.60
--267.30
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
66682424242424242424242456
REGRESSION COEFFICIENT
***0.321.0421.0530.135.00118*.0939.477.813*
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQLOGQLOGQ
KKKKKKKKK
LOGQ
***
10363.1-13.0-97.0
.438*
-98.5-185-219
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.11.01.22.78.55.75.91.80.40.90.92.92.34
0 .0064.315.0221.0001.0001.0001.0001.0001.0008.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
***
15834.627.737.8
.533*
29.0129212
*
92
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October I, 1974, to September 30, 1981 --Continued
STATION NUMBER: 09216810 STATION NAME AND LOCATION: KILLPECKER CREEK AT ROCK SPRINGS, WYO. DRAINAGE AREA: NOT AVAILABLE
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)
57335728574
57555255
555566
55555555555555555455165416161655161616169
5516
283
15008000
1999
26402743
49
345
550040011003000
21180
33006900
2147
51005
2015
610027
4200100
3560015000
<0
.00
.00
.00
.00
.20
.00
.00
.00
.00
.00
.30
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
0.000.002.00
2600.000.604.706.80
176.000.010.90
0.000.0415.000.60
520.0071.0075.00
210.004.004.00
150.00500.00
0.300.20
<1.00410.00<2.00
<20.00<2.00
<10.00<2.008.00
<20.00<1.00
500.001210.00
<0.50
11.060.48
82.395332.14
9.27 --
460.252.435.01
0.631.05--
2086.73226.42368.961160.18
10.8959.65
1197.642464.73
0.836.04
1992.78 --------
1441.75------
5763.27--
DEVIA- 95TION
8.38 260.70 2
237.82 6281753.32 8000
3.59 16__
8333.48 776
4.21 86.22 16
0.79 21.83 5__--
1018.03 360095.06 372
200.14 640577.19 2060
3.61 2036.09 124
675.03 24001237.03 4220
0.30 13.85 13
71006.41 3700
52015
176027
1052.00 4200100
3--
2758.04 9911<0
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.15
.93
.00
.00
.19-.90.00.98.00
.66
.44--.00.00.00.00.00.00.00.00.47.00.00.00.00.00.00.00.00.00.00.00-.99.50
17.500.52
40.007000.00
10.95--8.30
520.003.004.90
0.901.00----
2800.00310.00500.001500.00
12.0083.00
1600.003200.00
0.909.104.75
2700.003.00
20.006.00
320.004.00
1875.0030.001.00
7440.00<0.50
11.000.30
20.005700.00
8.80--8.00
410.000.943.60
0.410.32--
2100.00230.00350.001200.00
11.0059.00
1200.002400.00
0.805.101.50
2000.002.00
<20.004.00
110.003.00
1450.0025.001.00--
5790.00<0.50
2.250.1010.00
3500.006.95 7.80
310.000.192.00
0.120.16----
1200.00140.00180.00670.00
8.3033.00
630.001400.00
0.703.301.00
1000.00<2.00
<20.002.0070.002.00
475.0020.001.00
3460.00<0.50
0.000.003.72
2780.003.80--7.39
199.600.031.00
0.010.06--
552.0083.6088.80344.00
5.3612.50
256.00630.00
0.380.70
<1.00512.50<2.00
<20.00<2.0030.00<2.008.00
<20.00<1.00--
1654.00<0.50
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
2020ia181818181818181818
REGRESSION COEFFICIENT
341**.307.0369.0516.132*.00904.163.328.745
INDEPENDENT REGRESSION VARIABLE CONSTANT
QQKKKKKKKKKK
-86.6**
-248-11.7-50.9-17.8
*-10.8
-163-196-370
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.58.14.49.70.62.71.69.24.66.71.67.76
0 .0001.103.0013.0001.0001.0001.0001.0389.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
248**
37755.062.6167
*12.2
196437796
93
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09216880 STATION NAME AND LOCATION: BITTER CREEK BELOW LITTLE BITTER CREEK NEAR KANDA, WYO. DRAINAGE AREA: NOT AVAILABLE
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS
(FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE
(MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL,
(5 DAY)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED
(AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC
TOTAL (AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED
(AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED
(AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHYTOPLANKTON , TOTAL
(CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUM SIZE
6950
6969
6724
69663
6565
644
673
109
6666666666666767676718671818186618211818102
66
187
31.00222.00
5600.007000.00
19.8016.00
9.30919.0013.00
29.0029.00
2.701.50
21.006.70
38.0014.00
1500.00210.00250.00990.0014.0034.00
1100.001900.00
1.6018.00
250.001600.00
2.0020.009.00
1900.006.00
320.0050.003.00
1780000.00130000.00
4000.00
<0.502290.00
MINIMUM
0.000.00
1.001500.00
3.402.50
6.60160.009.20
0.011.10
0.020.06
0.002.70
7.200.90
250.0048.0032.00190.00
3.402.70
100.00230.00
0.300.802.001.00
<2.00<20.00<2.00
<10.00<2.001.00
<20.00<1.00
50000.00420.00
756.00
<0.5023.00
MEAN
10.7912.49
441.133256.52
9.127.49
--308.42
--
9.3013.66
0.66--
6.00--
17.82--
618.79101.8888.26
486.368.7616.17
445.67743.28
0.688.5619.89
732.10----------
146.24----
591199.70--
2075.70
----
STANDARD DEVIA TION
8.8032.13
1150.151046.81
3.842.73
--106.22
--
8.208.19
0.60--
4.16--
8.57--
257.1833.4543.34157.972.394.37
191.20329.96
0.193.33
57.57233.23
----------
93.27----
564344.73--
654.56
----
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95
25.48.
3750.5499.
17.15.
9.430.
--
26.28.
2.--
13.--
38.--
1100.176.166.801.12.22.
746.1420.
1.15.
250.1100.
2.20.9.
370.6.
318.50.3.
1780000.--
3766.
<0.--
5030
0098
2025
1000
5070
15
80
00
005050506565000000800000000000000000000000
00
50
75
17.5010-00
85.003750.00
10.208.30
8.40360.00
__
15.0019.50
0.92--
8.10--
20.75--
782.50120.00112.50590.0011.0018.00
560.00950.00
0.8010.008.00
850.002.00
<20.006.25
152.505.00
210.0032.502.00
784999.25--
2422.50
<0.50--
50 (MEDIAN)
10.004.00
20.003100.00
8.407.05
8.20295.00
__
6.7015.00
0.46--
6.10--
16.50--
540.0093.0074.00
470.008.6516.00
430.00620.00
0.708.105.50
750.00<2.00
<20.004.00
80.002.00
140.0020.00<1.00
460000.00--
1960.00
<0.50--
25
1.252.50
10.002500.00
6.206.45
7.90247.50
--
1.705.35
0.25--
2.40--
11.00--
427.5078.0055.75
380.007.2515.00
310.00520.00
0.606.204.00
620.00<2.00
<20.00<2.0040.00<2.0070.00
<20.00<1.00
225500.00--
1625.00
<0.50--
5
0.000.27
2.501925.00
4.702.70
7.60184.90
--
0.092.88
0.04--
0.28--
7.20--
334.0062.3541.00
247.004.519 . ?*>
124.00384.00
0.443.442.00
304.00<2.00
<20.00<2.00
<10.00<2.002.90
<20.00<1.00
50000.00--
1291.00
<0.50--
94
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER; 09216880 STATION NAME AND LOCATION: BITTER CREEK BELOW LITTLE BITTER CREEK NEAR KANDA, WYO. Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVED
SAMPLE SIZE
484846454545454545464646
REGRESSION COEFFICIENT
j~**0.184*.0338.149**.146.250.618
INDEPENDENT VARIABLE
LOGQQQKKKKK
LOGQKKK
REGRESSION CONSTANT
***
18.0JL
-21.7-13.9
**
-46.8-58.137.3
COEFFICIENT OF DETERMINATION
(r 2 )
0.23.04.01.53.33.59.88.34.28.70.58.90
SIGNIFICANCE PROBABILITY
OF F
0.0006.172.545.0001.0001.0001.0001.0001.0002.0001.0001.0001
STANDARD ERROR OF ESTIMATE
**j-
169*
27.654.5
J-
-V
97.2216203
95
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09217000 STATION NAME AND LOCATION: GREEN RIVER NEAR GREEN RIVER, WYO. DRAINAGE AREA: 14,000 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE SIZE
15914814214781297479185968
6828673101179797979797979797978229
622222227122242222148
1578
2180
MAXIMUM
23.8410.400.
1350.12.6.9.
176.0.0.9.
0.0.0.0.
10.2.
330.78.33.
110.2.
12.22.
350.0.8.2.
200.200.23,
<20.16,
1300,1660,70,1,
400100,
19000687,
16570
00,0000,00,70,701000,14,73,40
,32,69,41,04.00,30.00.00.00.00.80.00.00.00.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00
.10
.00
MINIMUM
0.00275.00
0.00310.00
6.201.407.80
107.000.000.000.12
0.000.000.000.003.300.20
130.0034.0011.0016.000.601.402.90
47.000.100.30
<1.0050.00<20.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0028.006.00
160.00186.00
<0.502.00
MEAN
9.561817.9820.20
626.549.942.98__
144.330.030.070.89
0.080.150.05--5.830.77
226.3355.2221.4153.461.522.389.15
178.720.255.31 ---- -------- ----
82.71
2933.33411.87
--181.49
STANDARD DEVIA TION
7.451808.2552.26176.98
1.421.36--
17.410.040.111.38
0.060.180.07--2.100.57
43.279.404.99
21.260.491.263.70
70.390.071.68-------------- ----
95.63--
4835.85112.28
--806.25
PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95
21.006739.48100.00950.0012.386.158.73
166.000.140.181.70
0.200.650.15--10.002.30
290.0068.0031.0099.002.503.8016.00
320.000.407.802.00--
128.5020.60
<20.0016.00
254.0014.9552.5068.501.00
400.00--
19000.00619.45
1.00381.95
75
16.001867.50
15.00740.0011.004.108.53
160.000.060.080.95
0.120.140.05--7.181.00
250.0063.0024.0064.001.802.4011.00
210.000.306.401.00--
80.002.25
<20.005.2570.004.00
<10.0020.00<1.0086.00--
2600.00462.50
<0.5081.50
50 (MEDIAN)
9.501040.00
5.00600.0010.202.608.30
150.000.020.040.59
0.070.090.03--5.750.60
230.0055.0021.0050.001.502.108.20
170.000.205.751.00--
60.00<2.00
<20.002.50
30.002.00
<10.00<20.00<1.0054.50--
1300.00404.00
<0.5027.00
25
1.00768.25
2.00510.00
8.751.858.20
130.000.010.020.41
0.030.050.02--3.550.50
200.0050.0018.0042.001.201.906.90
140.000.204.301.00--
50.00<2.00
<20.00<2.0020.00<2.00
<10.00<20.00<1.0031.50--
450.00353.50
<0.5011.25
5
0.00362.35
1.00360.00
7.811.407.98
110.000.000.000.19
0.000.000.01--3.300.20
150.0038.0013.0019.000.701.603.70
61.000.201.90
<1.00--
31.50<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0028.00
160.00228.00
<0.506.00
96
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09217000 STATION NAME AND LOCATION: GREEN RIVER NEAR GREEN RIVER, WYO.--Continued
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT SAMPLE
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED
SIZE
1271357070707070707070707064
REGRESSIONCOEFFICIENT
*-428
/v
.249
.0502
.0300
.126
.00280*.0186.427.688-v
INDEPENDENTVARIABLE
KLOGQ
KKKKKKKKKKK
REGRESSION (CONSTANT
*1,950
*66.222.72.32
-25.9-.239*
-2.52-93.0-25.4
*
:OEFFICIENT 01DETERMINATION
(r 2 )
0.08.63.37.80.71.84.82.75.04.59.86.88.19
SIGNIFICANC!
OF F
0.0013.0001.0001.0001.0001.0001.0001.0001.0883.0001.0001.0001.0003
r STANDARDj O 1 rtil LJt\£\±J
CDDriD ATTC.KKUK Ur
ESTIMATE
/' r
110 k
20.25.112.069.55.259 k
2.5127.440.4
k
97
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09217010 STATION NAME AND LOCATION: GREEN RIVER BELOW GREEN RIVER, WYO. DRAINAGE AREA: NOT AVAILABLE
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT p
PERCENT OF SAMPLES INAM- STANDARD WERE LESS THAN OR EQUALLE MAXIMUM MINIMUM MEAN
SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
92768484837175816971
711771119
82828282828282828282187318181865181818182099
1381
182
2377003001000
1389
20005
000
102
3307834
15043
34330
0153
24013
<2010
470354050<1
170001
5900665
296620
.00
.00
.00
.00
.20
.80
.10
.00
.31
.00
.34
.49
.59
.00
.20
.00
.00
.00
.00
.30
.50
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
0.00298.00
1.00340.00
6.200.807.60
108.000.000.08
0.000.020.013.900.30
130.0034.0012.0016.000.081.502.60
49.000.100.20<1.00
<20.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0066.000.000.00
710.00190.00
<0.5042.00
9.241630.35
30.60657.8010.032.75--
145.730.090.79
0.100.120.106.38--
229.1555.4422.0457.071.592.1912.12
183.680.255.27------ -- -- ----
677.20----
1722.31423.83
--
DEVIA- 95TION
7.49 211467.00 5022
63.12 225152.91 965
1.53 121.32 5
818.95 1710.07 00.68 2
0.09 00.12 00.10 02.07 10--
43.95 3009:55 705.11 30
24.60 1000.61 20.46 36.28 24
69.36 3200.08 02.07 7
312313
<2010
2303540502
454.64 1695----
1375.88 5900116.83 645
29--
75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.35
.49
.00
.00
.60
.18
.92
.80
.23
.16
.33
.49
.29
.00-
.00
.85
.85
.00
.60
.09
.70
.00
.38
.69
.00
.50
.00
.00
.00
.00
.00
.00
.00
.00
.00--
.00
.60
.00-
16.001820.0020.00
750.0011.003.308.60
160.000.130.90
0.130.160.107.90--
260.0062.2525.0068.251.902.4016.25
220.000.306.551.25
90.002.00
<20.004.00
80.006.00
20.0022.50<1.00
860.00----
1550.00492.00
<0.50
9.001030.00
8.00632.5010.102.508.40
150.000.060.64
0.080.080.075.70--
230.0055.5022.0053.001.502.1010.50
180.000.205.701.00
70.00<2.00
<20.002.00
40.002.50
<10.00<20.00<1.00
695.00--
1300.00414.00
<0.50--
0.63822.75
3.78572.50
8.901.908.20
130.000.040.47
0.040.040.045.10--
200.0048.7518.7542.501.201.807.55
140.000.203.981.00
60.00<2.00
<20.00<2.0020.00<2.00
<10.00<20.00<1.00
342.50----
955.00357.50
<0.50--
0.00384.30
1.00392.50
7.821.268.00
110.000.010.23
0.000.020.013.90--
150.0037.4513.0021.300.631.604.75
66.800.201.80
<1.0027.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.0067.10----
710.00230.90
<0.50--
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
686966676767676767676766
REGRESSION COEFFICIENT
-413*
*
.257
.0518
.0313
.137
.00296*
.0301
.422
.712
INDEPENDENT REGRESSION VARIABLE CONSTANT
LOGQLOGQ
KKKKKKKKKK
*
1,930*
55.120.11.02
-35.0-.403
JL.
-8.08-98.4-54.3
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.04.63.43.87.79.91.90.72.44.61.90.94
0 .0917.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
J-
98.5*
16.04.311.587.52.299J-
3.9122.530.4
98
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09218500 STATION NAME AND LOCATION: BLACKS FORK NEAR MILLBURNE, WYO. DRAINAGE AREA: 152 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
54543850212
12113
1832
12121212121212124
1222
11222
1226222
12
251
161150
825010
.00 1.
.00 6.
.00 0.
.00 30.
.40 9.2.60 2.8
84000
0200
912572011
1305
<1<100
40<2
<20<2
1802
60<20<1
1100101
<0354
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED (MG/L)
37501111111111111111111149
.20 8.
.00 23.
.02 0.
.19 0.
.93 0.
.06 0.
.30 0.
.02 0.
.02 0.
.00 28.
.00 8.
.00 2.
.10 1.
.10 0.
.00 0.
.80 0.
.00 3.
.10 0.
.90 3.
.00 <1.
.00 <100.
.00 <20.
.00 <2.
.00 <20.
.00 <2.
.00 20.
.00 <2.
.00 <10.
.00 <20.
.00 <1.
.00 440.
.00 35.
.50 <0.
.00 2.
5010000070600000021915
060201010000000010408000102000000000000000000000000000
5000
REGRESSION COEFFICIENT
0.00662-57.2
***********
6.94243.88
2.24117.10
----
50.25------
------
56.9215.954.171.480.100.611.126.10--4.36 ---- ----
84.17----------
65.25
--14.63
STANDARD DEVIATION
4.47323.59
1.8850.47 ----19.76------
----
20.695.601.690.390.000.210.332.77__0.95________----
46.80----------
21.63
--48.76
REGRESSION
PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN OR EQUAL TO THOSE95 75 50 25
SHOWN5
(MEDIAN)
15.251092.50
7.05214.50
----
84.00------
--------
91.0025.007.002.100.101.001.80
13.00--5.90----
40.00----
180.00--------
101.00
--23.80
9.75423.00
3.00150.00
----
67.50 --
--
71.0020.005.301.850.100.681.407.10--5.25----
<20.00------
120.00-- -- --
80.75
--11.00
6.0067.501.50
110.00------
51.50 ----
------
55.0016.003.951.400.100.601.005.45 4.15 --
<20.00 ----
75.00---- ----
63.00
--7.00
2.8825.501.00
70.00----
30.50--
--------
36.5010.282.601.080.100.430.834.30 3.38----
<20.00------
42.50------ --
43.75
._4.00
1.506.770.95
45.50------
23.00------
------
28.008.002.001.000.100.400.803.00--3.20--
<20.00------
20.00----------
35.00
--2.00
STATISTICS
INDEPENDENT REGRESSION ^ VARIABLE CONSTANT
QLOGQLOGQLOGQLOGQLOGQ
KKKQK
LOGQK
1.12229
***********
FFICIENT C ERMINATIOJ (r2 )
0.71.63.34.30.28.29.25.05.03.35.42.24.00
)F SIGNIFICANCE I PROBABILITY
OF F
0 .0001.0001.0576.0812.0924.0847.118.0001.596.0557.0307.124.696
STANDARD ERROR OF ESTIMATE
1.0330.9****-«
*
*
*
*
k
*
99
Table 3.--Statistical summaries of water-quality data from tAe Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 09221650 STATION NAME AND LOCATION: SMITHS FORK NEAR LYMAN, WYO. DRAINAGE AREA: NOT AVAILABLE
DESCRIPTIVE STATISTICSCAM-
WATER QUALITY CONSTITUENT ^ MAVTMITV. PLE MAXIMUM MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
8476808484418411
805684848484848484848484
11711121111
121
84
141
26350
45003400
159
390000
1341011034
650219
260850
1274
2000<25
<240<2
<10<20
3228
02000
<016200
.00
.00
.00
.00
.10
.20
.00
.05
.09
.67
.00
.00
.00
.00
.00
.00
.20
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.901.00
400.006.307.50
130.000.050.090.000.02
52.0016.003.00
36.001.302.10
23.0037.000.203.404.00
100.00<2.005.00<2.00
<10.00<2.00
<10.00<20.00
3.0042.000.00
242.00
<0.5022.00
8.6851.85186.87
1190.139.69--
240.11----0.110.70
206.5654.4817.08
187.925.923.76
95.57236.06
0.6013.17
316.47 ---- --------
121.17--
753.35
--800.97
STANDARD DEVIATION
8.1986.44
594.44618.04
1.45--
57.84 --0.142.04
54.7515.835.71
137.524.761.04
55.10185.49
0.394.04--
449.96---- -- ----
60.58--
396.80
--2653.04
PERCENT OF SAMPLES INWERE LESS THAN95 75
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
22.37277.551177.502400.00
11.808.89
337.50----0.475.12
280.0079.5026.75
465.0015.505.38
225.00617.50
1.4020.75--
2000.00-- ------------
228.00--
1532.50
--5726.96
15.0046.5095.00
1515.0010.708.55
283.75----0.150.24
230.0062.0020.00
270.007.784.18
127.50357.50
0.9015.75--
310.00 -- -- ------
177.50--
1027.50
--407.00
8.2514.0023.50
990.009.758.30
229.50----0.060.08
210.0057.0016.00
135.004.003.65
80.00155.00
0.4013.50--
190.00----------------
100.00
639.50
--120.00
0.504.7010.00
752.758.608.10
205.00 --0.030.05
180.0041.2514.0084.502.603.20
57.50100.00
0.3011.00--
120.00-- ---- ----
82.50
459.50
--56.00
0.001.302.10
495.007.507.61
130.00----0.010.02
112.5028.757.45
48.251.702.40
28.2550.250.205.83
100.00-- ------ ----
42.00
297.00
--27.20
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSUSPENDED SEDIMENT
72767676767676767676767637
REGRESSION INDEPENDE] COEFFICIENT VARIABLE
-611*
.0710***.221.00691*.0804.299.642*
LOGQLOGQ
KQQKKKKKKK
LOGQ
*T RFCRFSSTON COEFFICIENT OF SIGNIFICANCE »cTAxrr DETERMINATION PROBABILITY CONSTANT ^j) OF F
*1,880
154**-V
-74.-2.
*-.
-118-10.
*
332
386
9
0.06.56.57.25.14.44.97.84.15.80.96.98.06
0 .0378.0001.0001.0001.0010.0001.0001.0001.0005.0001.0001.0001.157
STANDARD ERROR OF ESTIMATE
*37935.4***
20.81.72J.
22.833.250.5*
100
Table 3.--Statistical summaries of water-qruality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09222000 STATION NAME AND LOCATION: BLACKS FORK NEAR LYMAN, WYO.DRAINAGE AREA: 821 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)
SAM PLE MAXIMUMSIZE
17 21151 26133 2200133 8700144 600075 121 7
43 886 3302 02 03 1
1 079 33 2
87 130087 30087 15087 69087 1186 687 16087 230086 187 202 71 <100
86 19002 <22 <202 9
87 4302 33 202 <202 49 650
PCB, TOTAL IN BOTTOM MATERIAL (UG/KG) 1 0PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
1 61086 3650
2 <091 13800
.00
.50
.00
.00
.00
.40
.80
.90
.00
.19
.06
.40
.03
.00
.00
.00
.00
.00
.00
.00
.60
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
STATISTICS
MINIMUM
0.0.2.1.
300.6.7.6.
66.0.0.0.
0.0.0.
140.36.7.
62.1.0.
23.120.
0.4.3.
<100.100.<2.
<20.<2.
<10.<2.
<10.<20.
3.20.0.
610.373.
<0.3.
000030000070808000040568
03000300003000905000002020000000000000000000000000000000
5000
MEAN
10.749.49
139.83225.17
2237.749.47----
210.20------
--0.16--
677.59168.0362.33
273.324.514.14
79.14914.94
0.7311.05----
431.63----------------------
1631.76
--804.29
STANDARD DEVIATION
6.668.29
299.781024.651174.56
1.33----
46.51------
--0.35--
321.2774.2033.26148.03
1.781.09
31.20563.19
0.302.93----
266.48----------------------
836.41
--2089-54
PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN95 75
OR EQUAL50
TO THOSE25
SHOWN5
(MEDIAN)
21.0022.20
615.701015.004299.99
11.60--8.76
286.50------
--0.47--
1200.00290.00120.00542.00
8.026.07
140.002000.00
1.2016.00----
872.50------
276.00--------------
3205.50
--5400.00
15.2517.00
123.5040.00
3000.0010.80--8.30
240.00------
--0.19--
920.00230.0084.00
360.005.404.83
98.001300.00
1.0013.00----
582.50------
100.00--------------
2185.00
--267.00
12.009.00
36.0010.00
2100.009.30--8.20
210.00------
--0.06--
650.00160.0059.00
260.004.304.30
78.00830.00
0.7011.00----
380.00------
60.00--------------
1500.00
--90.00
3.500.0014.504.00
1312.508.30--8.10
187.00------
--0.02--
400.00100.0036.00160.003.203.50
58.00430.00
0.509.00----
237.50------
30.00--------------
959.75
--34.00
0.000.006.491.00
677.507.60--7.52
133-50------
--0.01--
194.0052.2015.4083.002. 102.30
27.80232.00
0.306.30----
150.00------
<10.00--------------
514.40
--9.20
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
113125676868686868676868
REGRESSION INDEPENDENT REGRES COEFFICIENT VARIABLE CONST
1500
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 67SUSPENDED SEDIMENT 75
*
*.265.0593.0282.128.00115*.0238.496.732"
LOGQLOGQ
QKKKKKKKKK
LOGQ
*4,710
if
72.31.-1.-9.2.*
26.-192
*
COEFFICIENT OF SIGNIFICANCE .^ DETERMINATION PROBABILITY Mti (r 2 ) OF F
11324506
6
242
0.02.57.10.87.83.90.92.50.20.73.95.95.11
0 .140.0001.0094.0001.0001.0001.0001.0001.0001.0001.0001.0001.0030
STANDARD ERROR OF ESTIMATE
*806
*12531.911.545.11.38if
17.4141196
101
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Coo.tio.ued
STATION NUMBER: 09222300 STATION NAME AND LOCATION: LITTLE MUDDY CREEK NEAR GLENCOE, WYO. DRAINAGE AREA: 416 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPOHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUMSIZE
119 28109 343117 5400117 550058 1156 661 961 378
1 056 960 10
59 72 0
60 12 0
61 150061 40061 14061 47061 561 1861 9361 190060 161 178 2
60 70008 28 <208 <20
61 4708 39 1008 308 121 650
61 2970
8 <075 3680
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEAN DEVIA- 95 75TION
.00
.00
.00
.00
.80
.20
.10
.00
.01
.40
.00
.30
.23
.80
.02
.00
.00
.00
.00
.90
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.000.931.00
600.006.800.807-30
40.000.010.000.27
0.010.210.010.01
240.0052.001.00
43.000.801.00
15.00170.000.200.30<1.00150.00<2.00
<20.00<20.00<10.00<2.00
<10.00<20.00<1.00
650.00401.00
<0.508.00
8.1318.43
135.721753.16
9.132.63--
189.51 0.671.46
0.74 0.15--
725.74173.1171.16126.98
1.957.01
39.11731.80
0.615.45--
2167.50------ ----------
1271.31
--289.36
746
568896
11-
80-11
1-0-
262722697
13
19394
03-
1435---------
598
-579
.15 21
.11 74
.57 425
.45 3720
.35 11
.19 48
.03 346-.58 3.61 4
.25 4-.28 0-.71 1380.72 363.47 130.23 339.16 4.45 15.08 88.84 1790.18 0.54 11-.72 5484---
322-----.96 2918
-.42 1348
.00
.50
.00
.00
.61
.91
.69
.00-.84.98
.30-.50-.00.00.00.00.19.90.40.00.90.90-.99---.00-----.00
-.00
13.5013.0055.00
1900.0010.203.158.20
235.00--0.311.50
0.84--0.16--
810.00205.0084.00145.002.457.70
49.00850.00
0.788.10--
2700.00 --
80.00-- ------
1440.00
--279.00
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
8.007.40
20.001480.00
9.202.308.00
190.00--0.080.99
0.27--0.07--
650.00160.0064.0085.001.405.7034.00
630.000.605.30--
1850.00 ----
40.00------ --
1070.00
--88.00
0.504.257.50
1250.007.901.907.80
137.50--0.020.62
0.07--0.04--
575.00130.0055.0065.501.204.8524.50
495.000.502.65--
1200.00 ----
30.00------
899.00
--47.00
0.001.802.36
879.506.901.087.60
56.40--0.010.40
0.01--0.01--
430.0081.0040.1047.200.913.6116.20
251.000.310.41--
251.50------
<10.00------ --
619.10
--14.20
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
104106565656565656565656
REGRESSION COEFFICIENT
<
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 56SUSPENDED SEDIMENT 66
).52**.303.0771.0266.115.00122.00356*.475.735*
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQLOGQ
KKKKKKKKK
LOGQ
-27.9**
20941.226.2
-66.1-.109.852*
-70.226.4*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.56.09.18.85.72.62.90.72.69.47.90.95.40
0 .0001.0022.0011.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
403j.*
10539.216.832.0
.6201.94*
128138
x
102
Table 3.--Statistical summaries of water-quality data from the Green River coal region, jbased on samples collected from October 1, 1974, to September 30, 1981 Continued
STATION NUMBER: 09222400 STATION NAME AND LOCATION: MUDDY CREEK NEAR HAMPTON, WYO.DRAINAGE AREA: 963 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUM MINIMUM MEANSIZE
135 25125 455123 4400130 500064 1257 765 963 410
1 055 563 8
62 33 0
64 42 0
63 120062 27062 14063 45062 663 2163 40063 220061 163 148 91 <100
61 65008 48 <208 <20
63 8208 198 208 208 63 3400
63 2800
8 <086 7780
.00 0.
.00 0.
.00 1.
.00 340.
.20 7.
.00 0.
.80 7.
.00 50.
.23 0.
.00 0.
.70 0.
.00 0.
.64 0.
.80 0.
.01 0.
.00 0.
.00 37.
.00 14.
.00 22.
.10 0.
.00 3.
.00 27.
.00 30 .
.00 0.
.00 0.
.00 1.
.00 <100.
.00 50.
.00 <2.
.00 <20.
.00 <20.
.00 <10.
.00 <10.
.00 <10.
.00 <20.
.00 <1.
.00 610.
.00 223.
.50 <0.
.00 4.
0000000020605000230030
000201010000000090800000202000000000000000000000000000
5000
9.3446.37
221.631671.35
9.492.79--
204.57--0.211.22
0.40--0.45--
581.90123.8168.48154.56
2.6111.06
108.10576.05
0.495.30----
1534.10-------------- --
1169.35
866.74
STANDARD DEVIATION
7.9578.03
522.21846.67
1.241.43
83.41--0.681.17
0.60--0.91
263.2759.0829.6297.241.164.99
69.78422.12
0.183.28 --
1284.64------ ----
590.36
--1633.35
PERCENT OF SAMPLES INWERE LESS THAN OR EQUAL95 75 50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
21.232.1100.3300.
11.5.8.
341. 0.3.
1. 3.
1100.248.130.384.
4.20.
228.1500.
0.9.----
4040.-- --
540.---- ----
2390.
--5100.
6070000055928460
8052
78
07
00500000908000008096
00
00
00
00
16.0043.00160.00
2000.0010.503.208.40
250.00--0.141.20
0.41 0.39
710.00160.0081.00190.00
3.1315.00
150.00670.00
0.607.80 --
2150.00------
90.00----------
1370.00
--650.00
10.009.60
40.001525.00
9.452.608.20
200.00--0.050.93
0.18--0.10--
580.00120.0065.00140.00
2.5011.0097.00
460.000.405.50--
1300.00------
40.00------ --
1040.00
--136.00
0.003.9015.00
1187.508.601.758.00
137.00--0.030.71
0.05--0.04--
420.0077.5053.7589.001.686.70
50.00300.00
0.401.90----
670.00--
20.00------ --
798.00
~56.00
0.000.223.00
511.007.400.987.60
63.60--0.000.46
0.01--0.01--
182.0044.3020.1537.001.124.28
28.6069.600.200.50 --
160.00------
<10.00---- --
327.20
--8.70
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
107117515150505150515151
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 51SUSPENDED SEDIMENT 72
REGRESSION COEFFICIENT
*-706
**.0622.0385.116.00140**.496.710
14.1
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQLOGQLOGQ
KKKKKKKKQ
*2360
**
21.7.
-44.
**
-233-28.185
3062236
8
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.32.50.14.31.56.76.90.69.45.24.83.93.55
0,.0001.0001.0060.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001
STANDARD ERROR OFESTIMATE
J_
581#*
37.814.729.7
.650..i.
*178154
1,190
103
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09224050 STATION NAME AND LOCATION: HAMS FORK NEAR DIAMONDVILLE, WYO. DRAINAGE AREA: NOT AVAILABLE
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
75627575747375756772
737498
75757574747573747575187518181875181818181273
1811
198262108001379
21012
11
103
330942543
13
16200
083
19003
<207
9708
170401
4900478
<020
.50
.00
.00
.00
.40
.00
.10
.00
.60
.00
.20
.30
.00
.70
.00
.00
.00
.00
.10
.40
.00
.00
.60
.20
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.004.801.00
310.004.201.507.20
94.000.010.21
0.000.024.200.30
130.0038.009.204.900.200.902.20
26.000.100.10
<1.00<20.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00
400.00185.00
<0.504.00
6.94121.7610.83
501.538.763.15
156.810.280.93
0.190.25----
235.4766.5316.9514.760.411.806.97
99.300.273.86--------------------
2788.33304.62
8.27
DEVIA- 95TION
6.69 17200.93 73227.67 56106.12 692
1.93 121.25 5
826.35 1990.32 00.36 1
0.19 00.21 0--__
49.19 31413.75 894.02 246.76 280.17 00.45 23.06 13
42.29 1620.09 02.17 7
3963
<207
3728
17040
11776.07 4900
74.99 420
<04.76 20
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.80
.30
.00
.00
.40
.78
.90
.20
.87
.67
.65
.70--.00.60.00.75.72.54.00.50.40.04.00.00.00.00.00.00.00.00.00.00.00.30
.50
.00
13.50101.25
6.00570.00
9.703.808.20
180.000.431.10
0.250.31----
280.0079.0019.0018.000.502.008.70
130.000.305.702.00
60.00<2.00
<20.003.25
90.004.00
95.00<20.00<1.00
4725.00359.50
<0.5012.00
5.5041.503.70
510.008.852.807.90
160.000.160.92
0.140.20----
230.0066.0018.0014.500.401.906.90
110.000.303.801.00
50.00<2.00
<20.00<2.0050.002.00
40.00<20.00<1.00
2550.00308.00
<0.507.00
0.0020.502.00
400.007.672.207.60
140.000.070.68
0.060.11----
190.0054.0014.009.780.301.504.45
64.000.202.101.00
30.00<2.00
<20.00<2.0030.00<2.0027.50
<20.00<1.00
1220.00233.00
<0.505.00
0.007.321.00
360.005.021.707.38
110.000.020.39
0.010.03----
170.0048.8010.805.880.201.082.74
32.000.100.30
<1.0020.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00<1.00
400.00200.40
<0.504.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSUSPENDED SEDIMENT
62626262626262626261616111
REGRESSION COEFFICIENT
*j. ;V
0.408.106.0343.0526iV*.0229.340.656.337
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQ
KKKKKKKKKKQ
***
26.311.7-.409
-11.6**
-4.52-72.1-28.6-2.16
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.26.33.42.86.78.82.68.46.20.61.75.92.77
0 .0001.0001.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001.0004
STANDARD ERROR OF ESTIMATE
**-'.
17.46.041.693.87**1.97
21.121.12.39
104
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09224450 STATION NAME AND LOCATION: HAMS FORK NEAR GRANGER, WYO.DRAINAGE AREA: 670 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
STATISTICS PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEANSIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY, DISSOLVED (UG/L)
SEDIMENT, SUSPENDED
8380547521
4081111
1267781818181817881818176211222222221
80
2
81
2213504001180
818
270000
021
44011046
12025
51360
1242
<100703
<2013202
40<20<1
760827
<0
1500
.50
.00
.00
.00
.10
.60
.60
.00
.09
.14
.55
.04
.30
.80
.00
.00
.00
.00
.50
.00
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.0.1.
340.5.1.7.
98.0.0.0.
0.0.0.
130.32.7.
11.0.0.1.
41.0.0.1.
<100.70.<2.
<20.3.
20.<2.5.
<20.<1.
760.217.
<0.
3.
0000000000605000091455
0400000000800030409000201000000000000000000000000000
50
00
8.43135.7527.46
650.72------
183.78------
--0.220.12
274.6971.7723.2242.351.092.0419.11
152.930.433.49-------- ------------
428.02
92.60
DEVIA- 95TION
7.75 20.80252.34 820.7062.62 148.75165.55 970.00
____
8.6030.21 230.00----__
__0.50 1.840.26 0.45
62.43 389.0015.43 99.907.15 36.0019.23 76.700.40 1.970.65 3.009.98 39.00
62.69 285.000.17 0.603.65 6.90__________--------__--__
117.57 666.50
__
195.63 422.00
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
16.00105.7520.00
740.00----8.40
200.00------
--0.140.11
310.0083.5028.0050.001.252.30
23.00185.000.504.10----------------------
483.50
--
67.00
8.0027.008.00
660.00----
8.20189.00
------
--0.030.04
280.0070.0023.0040.001.001.95
18.00150.00
0.402.70------------------------
423.50
--
36.00
0.5014.005.75
530.00----
8.10164.00
------
--0.000.02
225.0060.0018.5032.000.801.60
12.00120.00
0.301.50------------------------
340.75
--
17.00
0.000.061.00
416.00----
7.50136.30
------
--0.000.01
190.0050.0013.0019.100.601.193.64
57.200.300.80------------------------
251.60
--
9.00
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSUSPENDED SEDIMENT
47686666666666666366666565
REGRESSION COEFFICIENT
-195*
*.319.0677.0371.100.00192*.0480.342.657*
INDEPENDENT REGRESSION j^E] VARIABLE CONSTANT
LOGQLOGQ
KKKKKKKKKKQ
*975
*59.226.1-1.90
-24.4-.184*
-13.3-76.6-16.4
*
JTICIENT iRMINATIO (r 2 )
0.20.57.41.80.63.82.89.76.03.74.88.92.29
OF SIGNIFICANCE 'N PROBABILITY
OF F
0 .0016.0001.0001.0001.0001.0001.0001.0001.215.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*112
*}?
27.28.822.976.06.182*4.88
21.531.7*
105
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, I981--Continued
STATION NUMBER: 09224700 STATION NAME AND LOCATION: BLACKS FORK RIVER NEAR LITTLE AMERICA, WYO. DRAINAGE AREA: 3,100 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL (COLS/ 100 ML)PCB, TOTAL (UG/L)
SAM
PLE MAXIMUMSIZE
164 27152 3450144 10200147 450086 122 5
45 888 3202 02 04 1
2 083 44 12 0
88 110088 22088 15088 62088 888 1288 31088 190087 088 132 31 200
87 14002 42 302 20
88 13002 44 602 602 39 6209 0
PCB, TOTAL IN BOTTOM MATERIAL (UG/KG) 8 0PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
2 2100088 31902 <0
94 8780
.00
.00
.00
.00
.60
.20
.90
.00
.41
.05
.80
.08
.20
.40
.01
.00
.00
.00
.00
.20
.00
.00
.00
.80
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
STANDARD MINIMUM MEAN DEVIA-
0.000.200.00
470.006.301.707.70
75.000.020.020.27
0.030.000.020.01
180.0040.0016.0041.001.202.6016.00
120.000.200.102.00
200.00110.00<2.00
<20.00<2.00
<10.00<2.00
<10.00<20.00
1.0023.000.000.00
18000.00361.00<0.502.00
9.05312.76256.431583.20
9.70----
192.19------
--
0.17----
499.32117.2650.16191.02
3.605.0172.92
603.520.496.40----
431.03------------------------
1163.73--
690.70
TION
7.87562.491011.54734.98
1.65----
45.34------
--
0.47 --
200.8143.9023.86106.96
1.421.67
47.47355.07
0.152.70----
267.57------------------------
557.56--
1526.87
PERCENT OF SAMPLES INWERE LESS THAN95 75
OR EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
22.1568.1525.2960.
12.--
8.277.
----
--
0.----
903.200.95.
427.6.8.
172.1355.
0.11.----
1100.------
371.-- -------- --
2306.
5022.
7550000036
6450
58
00007550937000007055
00
00
00
50
15.00307.75100.00
2000.0011.20
8.40220.00
----
--
0.16----
627.50140.0064.00
240.004.255.75
82.50777.500.607.90----
530.00------
87.50-------- ------
1450.00--
502.00
9.0074.0010.00
1500.009.55--
8.20185.50 ----
--
0.07----
490.00120.0046.00170.00
3.304.65
64.00545.00
0.506.50----
380.00------
40.00------------
1085.00--
79.00
0.5021.505.00
980.008.37--
8.10160.00
------
--
0.02----
340.0084.0032.00120.00
2.803.90
46.00315.00
0.404.70----
250.00------
20.00------------ --
745.25--
34.75
0.005.091.00
620.007.17--
7.70120.00
------
--
0.01----
224.5054.9018.4555.001.503.05
24.45153.500.241.55----
120.00------
<10.00----------------
412.45--
8.75
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
128134737373737373737373
REGRESSION COEFFICIENT
-768
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 73SUSPENDED SEDIMENT 81
*
*.245.0472.0307.142.00174.00180.0571.463.742*
INDEPENDENT VARIABLE
QLOGQ
QKKKKKKKKKQ
COEFFICIENT OF SIGNIFICANCE CONSTANT DETERMINATION PROBABILITY
*3050
*94.37.
-35.
2.-18.
-141-32.
*
992412855143
4
0.09.65.05.82.67.87.90.75.59.72.89.92.37
0,.0004.0001.0623.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*452
*88.825.49.09
35.6.761
1.1527.3123166
w
106
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued
STATION NUMBER: 09229500 STATION NAME AND LOCATION: HENRYS FORK NEAR MANILA, UTAHDRAINAGE AREA: 520 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENT
STATISTICS PERCENT OF SAMPLES IN WHICH VALUESSAM- STANDARD WERE LESS THAN OR EQUAL TO THOSEPLE MAXIMUM MINIMUM MEAN DEVIA- 95SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
SEDIMENT, SUSPENDED
8077397111
106612
16462
66656566656566656566616011
66
52
231300700
2700748
36901
71800
1600310200140
11976
15001
29590720160
25002470
4740
.00 0.
.00 0.
.00 1.
.00 370.
.30 7.
.90 4.
.40 7.
.00 118.
.02 0.
.60 0.
.20 7.
.00 0.
.11 0.
.02 0.
.00 0.
.00 46.
.00 14.
.00 13.
.60 0.
.00 3.
.00 3.
.00 80.
.80 0.
.00 11.
.00 80.
.00 <10.
.00 160.
.00 2500.
.00 247.
.00 6.
00450000309080000277
20010101000000004050800020000000000000
00
10.59108.6495.67
1392.18------
231.06----
--1.37----
751.52166.8384.5268.701.05
10.5426.98
589.480.5417.95
254.92------
1112.62
537.87
TION
7.51 21234.79 630176.62 700618.77 2540
____
838.58 280____
__2.84 6____
342.50 136565.33 28442.04 15032.65 1260.29 13.38 1613.28 49
333.24 12000.27 13.49 23
134.36 490339
__--
511.53 1979
987.40 3125
75 50 25SHOWN
5(MEDIAN)
.97
.70
.00
.00--.40.00--
-.77--.00.00.00.50.50.00.00.00.11.65.00.00--.00
.49
16.3768.0070.00
2000.00----8.40
250.50----
--1.50----
1100.00235.00120.0096.751.30
13.0039.00
855.000.60
20.00395.00127.50
----
1615.00
575.00
12.2533.0020.00
1210.00----8.25
238.50----
--0.27----
655.00150.0070.0056.501.009.60
22.00470.00
0.5017.50
190.0065.00----
948.50
135.50
2.004.353.00
950.00----8.00
216.00----
--0.13----
507.50120.0056.0044.750.807.85
18.00360.00
0.4016.00
155.0040.00----
750.00
38.25
0.001.591.00
458.00----7.80
144.00----
--0.04----
235.0071.4031.3026.000.605.8911.35193.000.3013.00
110.00<10.00
----
463.80
7.95
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSUSPENDED SEDIMENT
39685757565657565657565752
REGRESSION COEFFICIENT
*-683
*.507.0963.0631
-42.6-.358
-4.39.0203.520.730*
INDEPENDENT VARIABLE
LOGQLOGQ
QKKK
LOGQLOGQLOGQ
KKKQ
REGRESSION CONSTANT
*2,360
*.0728
22.8-8.81
1241.52
16.4-2.63
-15532.1*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.21.73.30.81.83.81.80.69.77.79.83.74.40
0 .0038.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*329
*14826.418.214.7
.1671.686.36
142260
*
107
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 2982--Continued
STATION NUMBER: 09235300 STATION NAME AND LOCATION: VERMILLION CREEK NEAR HIAWATHA, COLO. DRAINAGE AREA: 196 SQUARE MILES
DESCRIPTIVE STATISTICS
WATER QUALITY CONSTITUENT
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED
MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED
SAM PLE MAXIMUMSIZE
133 28125 75126 23000134 320066 1161 667 865 524
1 058 163 20
65 55 0
63 123 0
65 150064 52064 10064 31064 566 1664 3964 160065 064 747 21 <100
64 4807 47 <207 6
63 42007 79 7107 307 13 4400
65 2560
7 189 13200
.00
.00
.00
.00
.60
.80
.80
.00
.08
.10
.00
.80
.56
.00
.04
.00
.00
.00
.00
.00
.00
.00
.00
.60
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
PERCENT OF SAMPLES INSTANDARD WERE LESS THAN
MINIMUM MEAN
0.0.1.
700.6.0.7.
100.0.0.0.
0.0.0.0.0.
40.27.87.1.2.3.
220.0.4.1.
<100.10.<2.
<20.<2.
<10.<2.30.
<20.<1.
1300.185.
<0,9.
0000000070806000080025
00010101000000002010600020700000000000,00,0000.00,00,00.00.00
,50.00
9.813.34
775.431626.60
9.292.81--
354.54--0.071.76
0.30--0.76--
566.77115.8869.31200.89
3.684.5924.97
599.690.3413.14----
172.97------------------
1226.46
--1238.47
DEVIA- 95TION
9.19 258.08 15
2417.16 4190446.85 2600
1.55 111.55 6
875.86 483 0.15 02.68 6
0.73 0--1.84 4--
223.71 106775.28 29014.16 9253.51 2970.67 41.83 78.19 37
296.93 14500.07 08.18 17----
60.49 275------
1372__--------
427.89 2265
--2316.50 5989
75OR EQUAL
50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
.65
.40
.00
.00
.30
.40
.56
.50-.16.18
.89-.42-.00.00.00.50.80.60.75.00.47.50--.00---.00-----.00
-.98
18.002.65
562.501850.00
10.623.608.40
410.00--0.081.90
0.27--0.79--
625.00127.5081.00
240.004.105.0031.75
687.500.4014.00----
180.00------
110.00-- ----
1425.00
--1380.00
8.501.60
91.001500.00
9.602.408.30
350.00--0.051.10
0.18--0.12--
510.0094.5068.50190.003.654.30
25.00520.00
0.3012.00----
165.00------
60.00----------
1130.00
--256.00
0.000.5429.75
1350.007.801.658.10
310.00--0.020.60
0.05--0.06--
455.0078.2561.00160.003.303.6819.25
392.500.3010.00----
140.00------
30.00----------
953.00
--126.50
0.000.022.00
960.006.800.917.90
231.60--0.000.32
0.00--0.02--
325.0058.5044.25112.502.432.7010.25
302.500.207.80----
120.00------
<10.00----------
674.80
--13.50
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (MG/L AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
113120555554545454565454
REGRESSION COEFFICIENT
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 55SUSPENDED SEDIMENT 81
***0.435.133.0228.0944***.617.892*
INDEPENDENT REGRESSION VARIABLE CONSTANT
QLOGQ
QKKKK
LOGQKKKK
LOGQ
* k
k
-167-107
30.539.2
***
-439-283
*
COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY
(r 2 ) OF F
0.35.38.21.69.57.50.60.36.29.27.81.81.43
0 .0001.0001.0004.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001
STANDARD ERROR OF ESTIMATE
*~n
*
13353.210.536.0* k
*
139201
-A-
108
Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Contiimed
STATION NUMBER: 09253000 STATION NAME AND LOCATION: LITTLE SNAKE RIVER NEAR SLATER, COLO. DRAINAGE AREA: 285 SQUARE MILES
DESCRIPTIVE
WATER QUALITY CONSTITUENTSAM PLE MAXIMUM
STATISTICS PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR
MINIMUM MEAN DEVIA- 95SIZE
TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA + ORGANIC TOTAL
(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED
6938
14369
362
12135
111
36363636363536363635
111212222221
3526
211950
1300139
1100
000090
95329
18026
230
229
<100402
<20<2
11011
<10<20<1
510160<0
156
.50
.00
.00
.00
.10
.80
.00
.21
.01
.65
.83
.01
.00
.20
.00
.00
.80
.00
.90
.50
.20
.00
.40
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.00
.50
.00
0.15.1.
60.7.7.
15.0.
0.0.0.0.9.0.
18.4.1.1.0.0.0.0.0.0.9.
<100.40.<2.
<20.<2.40.<2.
<10.<20.<1.
510.34.<0.2.
0000000000200013
01000101002000900010102040000000000000000000000000000000005000
7.62324.52
--167.47
----
63.44--
--0.080.05------
59.1416.974.069.560.521.323.5311.320.2213.36------------------------
98.41----
TION
7.13 20.50530.35 1760.00
__55.47 238.00____
24.89 93.00__
__0.14 0.610.14 0.33______
20.76 89.056.43 26.051.73 7.845.04 17.150.23 0.810.54 2.261.63 6.035.62 22.150.09 0.405.21 22.00__________----------__--
36.19 154.40----
75EQUAL50
WHICH VALUESTO THOSE
25SHOWN
5(MEDIAN)
13.50407.50
--205.00
----
82.00--
--0.080.03------
74.5022.004.6512.750.701.804.6714.750.3019.00------------------------
129.00----
6.5036.75--
180.00----
70.00--
--0.040.02------
63.5018.004.2011.000.601.403.8011.500.2013.00------------------------
106.00----
0.5023.50--
125.00----
36.75--
--0.010.01------
43.7512.253.204.550.320.902.406.950.209.50------------------------
60.00----
0.0015.00--
61.00----19.25--
--0.000.01------
18.855.321.171.610.100.280.480.680.084.40------------------------
37.20----
REGRESSION STATISTICS
WATER QUALITY CONSTITUENT
SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (MG/L AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED
SAMPLE SIZE
SOLIDS, SUM OF CONSTITUENTS, DISSOLVED
1910101010101010101010
REGRESSION COEFFICIENT
-68 .1.412.263.0791J-
.0815
.00379***.475
INDEPENDENT VARIABLE
LOGQKKKKKKQ
LOGQKK
COEFFICIENT OFREGRESSION nFTR-RMTMATTHWCONSTANT ^TERMINATION
285-4.1716.13.39*
-4.16-.123***
17.8
0.82.99.89.88.36.91.79.31.05.25.93
SIGNIFICANCE PROBABILITY
OF F
0 .0001.0001.0001.0001.0682.0001.0006.0930.522.146.0001
STANDARD ERROR OF ESTIMATE
21.92.305.091.61*1.44.110***7.51
109U.S. GOVERNMENT PRINTING OFFICE: 1988 575-623/85,002 REGION NO. 8