hydrogeologic data for the canal creek area, …

HYDROGEOLOGIC DATA FOR THE CANAL CREEK AREA,

ABERDEEN PROVING GROUND, MARYLAND,

APRIL 1986-MARCH 1988

By James P. Oliveros and Patrice Gernhardt

U.S. GEOLOGICAL SURVEY

Open-File Report 89-387

Prepared in cooperation with the

OFFICE OF ENVIRONMENTAL MANAGEMENT,

ABERDEEN PROVING GROUND, MARYLAND

Towson, Maryland

1989

DEPARTMENT OF THE INTERIOR

MANUEL LUJAN, JR., Secretary

U.S. GEOLOGICAL SURVEY

Dallas L. Peck, Director

For additional information write to:

District Chief U.S. Geological Survey 208 Carroll Building 8600 La Salle Road Towson, MD 21204

Copies of this report can be purchased from:

U.!f>. Geological SurveyBo<t»ks and Open-File Reports SectionBoX 25425, Federal CenterDenver, CO 80225

CONTENTS

PageAbstract............................................................... 1Introduction........................................................... 1

Description of study area......................................... 1Previous studies.................................................. 3Numbering system.................................................. 3Acknowledgments................................................... 3

Well construction...................................................... 4Data collection........................................................ 4Selected references.................................................... 7

ILLUSTRATIONS

Figure 1. Map showing location of the Canal Creek study area...... 22. Diagram showing typical well construction............... 53. Map showing site locations .............................. 6

4-11. Hydrographs showing water levels for4. Well 1A, April 1987 through March 1988 ........ 485. Well IB, September 1987 through March 1988 .... 486. Well 1C, July 1987 through March 1988 ......... 497. Well ID, June 1987 through March 1988 ......... 498. Well 7A, April 1987 through March 1988 ........ 509. Well 8C, April 1987 through March 1988 ........ 50

10. Well 16B, August 1987 through March 1988 ...... 5111. Well 18B, August 1987 through March 1988 ...... 51

12-20. Electric and gamma logs from borings drilled using the mud rotary method for12. Sites 1 and 2.................................. 5413. Sites 3 and 4.................................. 5514. Sites 5 and 6.................................. 5615. Sites 7 and 8.................................. 5716. Sites 11 and 15................................ 5817. Sites 29 and 104............................... 5918. Sites 117 and 121.............................. 6019. Sites 136 and TH1.............................. 6120. Sites TH2 and TH3.............................. 62

21-29. Gamma logs from borings drilled using the hollow-stem auger method for21. Sites 9, 10, 13, 14, 16, and 17................ 6322. Sites 18, 19, 20, 21, 22, and 23............... 6423. Sites 25, 26, 27, 28, 30, and 31............... 6524. Sites 32, 33, 34, 35, 36 and 37................ 6625. Sites 38, 39, 41, 43, 44, and 101.............. 6726. Sites 102, 106, 107, 108, 109, and 111......... 6827. Sites 112, 113, 114, 115, 118, and 120......... 6928. Sites 122, 123, 124, 126, 127, and 129......... 7029. Sites 130, 132, 133, 134, and 135.............. 71

iii

Table 1.2.3.

TABLES

Well-construction data..................................... 10Lithologic logs for well-cluster sites..................... 13Synoptic water-level measurements.......................... 44

For the convenience of readers who may prefer to use metric (International System) units rather than the inch-pound units used in this report, values may be converted by using the following factors:

Multiply inch-pound unit

inch (in.)

foot (ft)

by.

25.4

25,400.

0.3048

To obtain metric units

millimeter (mm)

micron

meter (m)

Sea level: In this report "sea level" defers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929)--a geodetic datum derived from a general adjustment of the first-order level nets of both the United States and Canada, formerly called "Sea Level Datun} of 1929."

IV

HYDROGEOLOGIC DATA FOR THE CANAL CREEK AREA,

ABERDEEN PROVING GROUND, MARYLAND,

April 1986-March 1988

By James P. Oliveros and Patrice Gernhardt

ABSTRACT

This report is a compilation of hydrologic and geologic data collected for the period April 1986 through March 1988 for the Canal Creek area of Aberdeen Proving Ground, Maryland. Geologic data include lithologic logs for 73 sites and geophysical logs for 71 sites. Hydrologic data consist of hydrographs and synoptic water-level measurements. The hydrographs were taken from eight wells that were equipped with continuous water-level recorders, and the synoptic water-level measurements were made four times during the study. Well-construction data also are included for 149 observation wells.

INTRODUCTION

Description of Study Area

The Canal Creek study area is located in the Edgewood area of Aberdeen Proving Ground (APG), Harford County, Maryland (fig. 1). The study area lies within the Coastal Plain physiographic province and is underlain by uncon- solidated sediments which thicken to as much as 400 ft (feet). The sediments are primarily of the Potomac Group of Cretaceous-age, but a thin veneer of sediments of the Talbot Formation of Pleistocene-age overlie the Potomac Group sediments for most of the study area.

The sediments are divided into discrete aquifers and confining units that from the surface downward, are called the (1) surficial aquifer, (2) upper confining unit, (3) Canal Creek aquifer, (4) lower confining unit, and (5) lower confined aquifer (Don Vroblesky, U.S. Geological Survey, written commun., 1988). The Canal Creek and lower confined aquifers were pumped heavily between 1950 and 1968 to supply water for manufacturing activities. From 1968 until 1984, wells screened in the aquifers were used only as standby water-supply wells. In 1984, the Maryland Department of Health detected volatile organic contaminants in the ground water and the standby water-supply wells were no longer used for drinking water purposes. The U.S. Geological Survey (USGS) and the U.S. Department of Defense, Office of Environmental Management, began investigating the effects of ground-water contamination within the Canal Creek area in 1985.

PENNSYLVANIA

39 25'

39 20

Base from U.S. Geological Survey, .1: 100, 000.

3 Kl LOMETERS

Figure 1. Location of the Canal Creek study area

Previous Studies

Previous geologic data from the study area were limited to drillers' logs of the water-supply wells and lithologic logs from shallow (less than 35 ft) monitoring wells installed by the U.S. Army Toxic and Hazardous Materials Agency (THAMA). Geologic data as well as some hydrologic data are presented in a report published by THAMA (Nemeth and others, 1983). The USGS has collected water-level data from one of the standby water-supply wells since 1949.

Numbering System

Each test-boring and well-cluster site was assigned a sequential number based on the order in which the site was originally chosen for investigation. A distinction was made between first- and second-phase well-cluster sites. The first-phase sites were given a one- or two-digit number, with the first site being assigned number 1 and the last site being assigned number 44. The second-phase sites were given a three-digit number, with the first site being assigned number 101 and the last site mentioned in this report being assigned number 138. Some sites were eliminated after numbers were assigned; consequently, some numbers are missing from the sequences.

Three sites were chosen specifically as test-boring sites where only geophysical data were collected and no wells were installed. The sites were numbered TH1, TH2, and TH3. The borings were logged and then sealed with cement without emplacement of well casing.

Each well-cluster site contains one or more observation well. Individual wells are assigned a site number followed by a letter, with the letter corre sponding to the relative depth of each well. For example, site 1 contains six wells--1A, IB, 1C, ID, IE, and IF--with well 1A being the shallowest and well IF being the deepest. Two exceptions to this rule are wells 7A.1 and 12A.1. In both these cases, four wells were drilled in phase 1--7A, 7B, 12A, and 12B. A shallower well was added at each site in phase 2--7A.1 and 12A.1. Preceding each well number are the letters "CC" for Canal Creek. These letters are used in order to distinguish wells in the Canal Creek study area from wells in other study areas. Each well is also assigned a county well-permit number, but because the permits were obtained after the local numbers were assigned, the local numbers were retained. The permit numbers are listed in table 3; however, not all the wells were assigned a permit number by the time this report was written (November 1988).

Acknowledgments

Many people outside the U.S. Geological Survey facilitated the collection of lithologic and geophysical data during drilling operations. Thanks are given to Cynthia L. Couch of the Office of Environmental Management (OEM), Aberdeen Proving Ground, and David Parks, formerly of OEM, for their support of the study. Thanks are also given to the Technical Escort Unit for providing support during drilling operations, and to the U.S. Army Corps of Engineers for collecting core samples and providing geophysical logging equipment. Special thanks are given to John Bush, William Krynor, James Stefano, and Samuel Pastor of the U.S. Army Corps of Engineers for assisting in the collection of geophysical data.

WELL CONSTRUCTION

Detailed well-construction records (table 1) were kept for all monitoring wells, and uniform well-construction procedures were followed for the majority of the wells. All wells consist of a 4-in.-outside-diameter polyvinyl chloride (pvc) casing, and most contain a 4-in.-outside-diameter pvc screen that is 5 ft in length. A sand pack was installed around the screened interval up to 1 ft above the top of the screen (fig. 2). Bentonite pellets were placed above the sand pack 12 to 24 in. thick; a grout seal was placed around the outside of the casing from the top of the bentonite plug up to the land surface.

DATA COLLECTION

Data collection began in April 1986 with drilling of the observation wells. From April 1986 through March 1988, 149 observation wells were installed at 75 sites (fig. 3) in two phases of drilling. Detailed geologic data (table 2) were collected at each site during drilling except at sites 12 and 121. Synoptic water-level measurements (table 3) were made four times and water-level recorders were installed on Selected wells for recording water levels at 15-minute intervals (figs. 4-11). Additionally, geophysical logs were run at 71 sites (figs. 12-29).

There was a total of 78 sites where borings were made in conjunction with the study. Wells were only installed at 75 of the sites. The other three sites were only used for test borings. At 37 of the well sites, test borings were drilled prior to the installation of wells. Geologic and geophysical data were generally collected from the test borings; therefore, the depths of the geologic data and geophysical logs in table 2 do not necessarily corre spond with the well depths in table 1. In other cases, core samples were not taken to the total depth of the boring.

The hydrogeologic data presented in this report are only part of the overall data base from the study. Chemical data from the sampling of the first-phase wells also were collected (Michelle M. Lorah and Don A. Vroblesky, U.S. Geological Survey, written commun., 1988) and the collection of hydrologic data is ongoing.

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SELECTED REFERENCES

Dingman, R.J., Ferguson, H.F., and Martin, R.O.R., 1956, The water resources of Baltimore and Harford Counties: Maryland Department of Geology, Mines and Water Resources 1 , Bulletin 17, 231 p.

Munsell Color, 1975, The Munsell soil color charts: Macbeth a division of Kollmorgen Corporation, Baltmore, Maryland.

Nemeth, Gary, Murphy, J.M., and Zarzycki, J.H., 1983, Environmental survey of the Edgewood area of Aberdeen Proving Ground, Maryland: Report no. DRXTH-AS-FR-82185, U.S. Army Toxic and Hazardous Materials Agency, Aberdeen Proving Ground, Maryland, 276 p.

Southwick, D.L., Owens, J.P., and Edwards, Jonathan, Jr., 1969, The geology of Harford County, Maryland: Maryland Geological Survey, 133 p.

1 The name of this agency was changed to the Maryland Geological Survey in June 1964.

TABLES 1 THROUGH 3

Drilling method: Auger

Well installed using hollow-stem auger. Mud

rotary Well

installed using mud rotary with bentonite mud.

Aquifer: S

Surficial aquifer CC

Canal Creek aquifer LC

Lower confined aquifer I

Unidentified isolated sand lense

Local Site Permit Altitude Drilling Depth of Screened number

identification number of land method boring interval Aquifer number

surface (in feet) (depth in feet)

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CM CM

CM CM

O

) O) O

) O)

O)

CO CO

CO CO

CO

03 o <

m <

r^ r^ oo oo O

)

1 1

1 1

1

Bo o

o o

o o

o o

Table 1. Well-construction data Continued

[ , data not available]

Site identification number: Latitude and longitude plus a 2-digit sequence number.

Altitude: In feet above sea level.

Drilling method: Auger Well installed using hollow-stem auger.Mud rotary Well installed using mud rotary with bentonite mud.

Aquifer: S Surficial aquiferCC Canal Creek aquiferLC Lower confined aquiferI Unidentified isolated sand lense

Local number

CC-19BCC-20ACC-20BCC-20CCC-20D

CC-21ACC-22ACC-22B

CC-22CCC-23ACC-23BCC-25ACC-25B

CC-26ACC-26BCC-26CCC-27ACC-27B

CC-28ACC-28BCC-28CCC-29A

CC-29B

CC-30ACC-31ACC-32ACC-32BCC-33A

CC-33BCC-34ACC-35ACC-36ACC-36B

CC-36CCC-36DCC-37ACC-38ACC-39A

CC-39BCC-40ACC-41ACC-42ACC-43A

CC-44ACC-101ACC-101BCC-101CCC-102A

CC-102BCC-102CCC-104ACC-104BCC-104C

Site identification

number

392348076181402392341076175401392341076175402392341076175403392341076175404

392358076182401392337076175701392337076175702

392337076175703392339076181301392339076181302392338076182301392338076182302

392342076182601392342076182602392342076182603392343076183301392343076183302

392340076183401392340076183402392340076183403392328076180201

392328076180202

392355076182201392350076184301392311076161601392311076161602392314076161401

392314076161402392312076161501392307076162801392340076180201392340076180202

392340076180203392340076180204392415076180001392416076175001392416076180301

392416076180302392417076180101392417076180201392415076175701392414076175801

392405076183701392341076174001392341076174002392341076174003392339076172201

392339076172202392339076172203392333076170201392333076170202392333076170203

Permit number

HA-81-3037HA-81-3038HA-81-3039HA-81-3040HA-81-3041

HA-81-3043HA-81-3048HA-81-3049

HA-81-3050HA-81-3051HA-81-3052HA-81-3056HA-81-3057

HA-81-3058HA-81-3059HA-81-3060HA-81-3061HA-81-3062

HA-81-3063HA-81-3064

HA-81-3065

HA-81-3066

HA-81-3067HA-81-4076HA-81-4046HA-81-4047HA-81-4048

HA-81-4049HA-81-4045HA-81-4044HA-81-4075

--

HA-81-4043HA-81-4042HA-81-4041

HA-81-4040HA-81-4039HA-81-4038HA-81-4037

--

HA-81-4077 --

--

Altitude of land surface

28.411.210.910.410.8

14.211.711.9

12.320.420.412.112.1

12.913.013.611.411.2

10.910.810.36.5

6.6

21.49.113.314.114.3

14.214.614.214.514.3

14.214.232.131.631.4

31.531.234.633.830.0

11.912.312.311.623.4

23.025.812.412.713.0

Drilling method

AugerAugerAugerAugerAuger

AugerAugerAuger


AugerAuger

Mud rotaryAugerAuger

AugerAugerAugerAuger

Auger







Depth of boring (in feet)

5816345974

352750

7021572745

2040

1492340

2150

13715

47

4237194319

7022502644

6293434829

6334574957

3714285674

891188799

129

Screened interval

(depth in feet)

53.0 - 58.011.0 - 16.025.0 - 30.054.0 - 59.068.0 - 73.0

30.0 - 35.022.0 - 27.045.0 - 50.0

65.0 - 70.016.0 - 21.052.0 - 57.022.0 - 27.040.0 - 45.0

15.0 - 20.035.0 - 40.0144.0 -149.018.0 - 23.035.0 - 40.0

16.0 - 21.045.0 - 50.0120.0 -125.0

7.7 - 9.712.5 - 15.042.0 - 47.0

36.0 - 41.025.0 - 30.010.5 - 15.521.0 - 26.011.0 - 16.0

62.0 - 67.014.0 - 19.024.0 - 29.010.0 - 15.039.0 - 44.0

56.0 - 61.088.0 - 93.023.0 - 28.034.0 - 39.020.0 - 25.0

35.0 - 40.026.0 - 31.039.0 - 44.022.0 - 38.033.0 - 38.0

16.0 - 21.05.0 - 10.017.0 - 22.045.0 - 50.065.0 - 70.0

81.0 - 86.0100.0 -105.076.0 - 81.091.0 - 96.099.0 -129.0

Aquifer

CCSSCCCC

CCSCC

CCSCCCCCC

CCCCLCCCCC

CCCCLCSSCC

CCCCSSS

SSSSCC

CCCCCCCCCC

CCCCCCCCCC

CCSCCCCCC

CCCCCCCCCC

11

Table 1. Well-construction data Continued

[ , data not available]

Site identification number: Latitude and longitude plus a 2-digit sequence number.

Altitude: In feet above sea level.

Drilling method: Auger Well installed using hollow-stem auger.Mud rotary Well installed using mud rotary with bentonite mud.

Aquifer: S Surficial aquiferCC Canal Creek aquiferLC Lower confined aquifer

Local number

CC-106A CC-107A CC-107B CC-108A CC-108B

CC-109A CC-109B CC-110A CC-111A CC-111B

CC-112A CC-113A CC-113B CC-114A CC-114B

CC-114C CC-115A CC-117A CC-117B CC-118A

CC-118B CC-120A CC-120B CC-121A CC-121B

CC-122ACC-123ACC-123BCC-124ACC-124B

CC-126ACC-127ACC-128ACC-129ACC-130A

CC-130BCC-131ACC-132ACC-133ACC-133B

CC-134ACC-134BCC-135ACC-136ACC-136B

CC-138A

I

Site identification

number

392320076175601 392404076180301 392404076180302 392358076180001 392358076180002

392357076181401 392357076181402 392353076182001 392352076182601 392352076182602

392351076183101 392345076182701 392345076182702 392344076182401 392344076182402

392344076182403 392346076182401 392343076170201 392343076170202 392401076181601

392401076181602 392406076175701 392406076175702 392348076170401 392348076170402

392425076181501392316076181501392316076181502392355076173401392355076173402

392314076164601392316076170401392314076165901392312076170301392359076182301

392359076182302392310076164101392309076163901392343076175401392343076175402

392323076182401392323076182402392309076164501392340076165101392340076165102

392351076181401

Unidentified isolated

Permit Altitude number of land

surface

22. 29. 29. 29. 29.

17. 17. 22. 15. 16.

9. 15. 15. 18. 17.

17. 27. 9. 9.

14.

15. 32. 32. 10. 10.

28.27.27.17.17.

24.24.22.27.14.

14.12.16.23.23.

21.20.20.23.23.

32.

8 7 3 6 4

0 2 8 1 2

8 3 1 2 0

8 4 1 1 7

0 0 1 4 1

99743

04358

28763

06405

5

sand

Dri me

Au Au Au Au Au

Au Au Au Av Av

At Av Av Av AU

AU Au AU AuAU

Au AU Au Avj Ai

lense

lling thod

ger ger ger ger ger

ger ger ger ger ger

ger ger ger ger ger

ger ger ger ger ger

ger ger ger ger ger

AugerAugerAv^gerAugerAviger

AugerAugerAugerAugerAv»ger


Av^gerAtjigerAugerAtAt

At

gerger

ger

Depth of boring (in feet)

96 58 88 60 74

47 69 53 32 43

39 40 64 20 44

64 60 83

103 39

59 64 74 93

105

4391

1091974

2418143341

5418182474

799933

104144

12

Screened interval

(depth in feet)

90 51 66 55 68

36 59 40 25 31

29 30 51 12 36

53 43 78 95 32

51 55 65 68 91

2277

1011367

1366

1732

4711111560

70931498

, 133

5

0 0 0 0 0

0 0 0 0 0

0 0 0 0 0

0 0 0 0 0

0 0 0 0 0

00000

00050

05000

00000

0

- 95 - 56 - 71 - 60 - 73

- 41 - 64 - 45 - 30 - 36

- 34 - 35 - 56 - 17 - 41

- 58 - 48 - 83 -100 - 37

- 56 - 60 - 70 - 93 - 96

- 27- 82-106- 18- 72

- 18- 11- 11- 22- 37

- 52- 16- 16- 20- 65

- 75- 98- 19-103-138

- 10

0 0 0 00

0 0 0 0 0

0 0 0 0 0

0 0 0 0 0

0 0 0 00

00000

00050

05000

00000

0

Aquifer

CC CC CC CC CC

CC CC CC CC CC

CC CC CC S CC

CC CC CC CC CC

CC CC CC CC CC

CCCCCCSCC

SSSSCC

CCSSSCC

CCCCSCCCC

I

12

Table 2. Lithologic logs for well-cluster sites

[Alphanumeric codes enclosed in brackets, at selected horizons, refer to color designations as specified in the Munsell Soil Color Charts (1975)]

Sand grade scale

Grain size Term(in microns)

1,410-2,000 vcU1,000-1,410 vcL

710-1,000 cU500- 710 cL350- 500 mU250- 350 mL177- 250 fU125- 177 fL88- 125 vfU62- 88 vfL

Description

SITE 1

Fill material, sand and gravelCrystalline material, black; with black nodular crystalsSand, clayey, brown, (mL)Sand, brown-gray, wet; brown mU near top and gray (fU) near bottom, sorting moderate

to goodClay, gray, plastic; with patches of maroon sandy claySand, gray to brown, well-sorted (mL-mU)Sand, same as above with maroon irregular banding and small lenses of light gray

clay and purple nodulesSand, tan, well-sorted (mU-cL) , wetSand and gravel, white, poorly sorted (mL-vcU to 2 in.), lignitic; with isolated

maroon stainingNo sampleClay, gray to light pink, friableNo sampleSand and gravel, white to tan, poorly sortedNo sampleSand, white, poorly sorted (vfL-vcU); with patches of purpleSand, clayeyNo sampleSand, light brown, well-sorted (mL-mU)Clay, gray to light pink; with floating gravel and black nodulesSand, tan, well-sorted (mU); alternating with darker clayey sand and gravelClay, dark gray to silver, friable; with sand and gravel lensesClay, brown, friableClay, black, friable, ligniticClay, dark gray, plasticClay, light gray and brick red mottled, friable; with dark green blotches at borders

between gray and redClay, silty, green to gray, friableSand, gray, poorly sorted (vfL-mL) , micaceousClay, sandy, dark gray, ligniticLignite, massive; with well preserved plant fragmentsClay, multicolored (gray, green, brown, red), plasticNo sampleSand, gray (fu-mL), clean, micaceousNo sampleSand, light gray, clean, well-sorted (mU), micaceousNo sampleSand, grayish tan, well-sorted (mU), micaceous

Depth(ft)

2.32.95.0

15.316.035.0

40.057.0

61.063.065.067.069.071.072.473.075.079.680.084.486.087.590.093.1

99.0100.0106.2107.5108.9130.0170.6170.9181.5182.0186.4186.8

Thickness(ft)

2.30.62.1

10.30.7

19.0

5.017.0

4.02.02.02.02.02.01.40.62.04.60.44.41.61.52.53.1

5.91.06.21.31.4

21.140.60.3

10.60.54.40.4

13

Table 2. Lithologic logs for well-cluster sites Continued


Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL

710-1,000 ell500- 710 cL350- 500 mU250- 350 ml,177- 250 ftf125- 177 fl88- 125 vl62- 88 vJ

TJT,

Description

SITE 2

Soil zone, brownSand, clayey, orange and gray-brown mottled, poorly sortedClay, sandy, brown, wetSand, clayey, light gray, poorly sorted (vfU-mL)Clay, gray; with thin sand lensesSand and gravel, white, orange-stainedSand, light gray, black-stainedSand and gravel, white, coarseClay, silty, brick-red and gray mottling, friableSand, silty, light gray, well-sorted (fL-fU), micaceousClay, sandy, red, brown, yellow, and gray mottled; friableSand, silty, light gray, poorly sorted (fL~fU)Clay, silty, mottled as before, friable, lignitic, denseSand, clayey, light gray, poorly sorted

Depth(ft)

2.04.06.2

10.012.036.940.048.058.067.768.068.782.283.0

Clay, silty, mottled as before, friable, micaceous; with thin gray sand lenses 92.0No sample 96.0Clay, silty, mottled as before, friable, micaceous; with thin gray sand lenses 98.0No sampleSand, silty, light gray (fU-mL); with thin gray clay lenses

110.0138.0

Sand, light gray, clean, well-sorted (mL-cL) , lignitic; with small gravel 151.1No sampleClay, sandy, dark brown, maroon and gray, friableNo sampleClay, silty, dark gray, friable, micaceousSand, silty, silver-gray (fL) micaceousSand, light gray, clean, well-sorted (mU)

164.0165.2176.0176.5179.9181.2

Thickness(ft)

2.02.02.23.82.0

24.93.18.0

10.09.70.30.713.5

.89.04.02.012.028.013.112.91.2

10.80.53.41.3

Note: Beginning at 16 ft, sample cores were taken every other 2 ft; therefore, the data were interpolated unless more than 2 ft of sample were missing.

Description Depth (ft)

Thickness (ft)

SITE 3

No sampleClay, silty, light gray and red, micaceousSilt, clayey, light gray, micaceousNo s ampleSilt, clayey, red and olive mottledNo sampleClay, silty, dark gray, friable, lignitic, micaceousSand and gravel, white, clean, coarseClay, white, plasticSand and gravel, buff to white, coarseClay, white; with iron concretions at sharp upper contact

56.057.060.086.090.0120.0129.0145.0148.0176.0177.0

56.01.03.0

26.04.0

30.09.0

16.03.0

28.01.0

14



Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL710-1,000 cU500- 710 cL350- 500 mU250- 350 mL177- 250 fU125- 177 fL88- 125 vfU62- 88 vfL

Description

SITE 4

Soil, silty, gray-brown to orangeSilt, clayey, graySand, silty, gray to orangeSilt, clayey, grayClay, red-brown and light gray mottled, plasticSilt, sandy, gray, micaceous; sand up to (fU)Clay, silty, brown, friableSilt, sandy, gray, micaceous; sand up to (mU)Clay, silty, red-brown, friableClay, silty, gray-brown, friable, finely laminatedSand, silty, gray, finely laminated; interbedded with lignitic, micaceous layers of

clayey siltSand, tan, clean, well-sorted (mU)Sand, white to yellow; with ochre and lavender bandingSand, yellow-brown, well-sorted (mL-mU)Sand, silty, red-brown; with lenses of gray claySilt, multicolored, clayeySand and gravel, yellow-orange; with multicolored bandsClay, white; with orange-rust lenses and hard iron concretions at sharp upper contactNo sampleClay, dark gray, lignitic

Description

SITE 5

Soil, clayey, brownSand, clayey, brown, micaceous, ligniticSand, light brown, well-sorted (mL)Silt, clayey, gray and brown mottledSand, tan to orange, well-sorted (mU)Sand, pink to gray, well-sorted (mL-cU)Clay, gray, plasticClay, red and gray mottled, plasticSand, silty, pink-gray, poorly sorted (fU-clay)Sand, light gray, well-sorted (mL-mU), loose, wetClay, gray; with fine laminae of lignitic sandSand, gray; with fine laminae of lignite-rich sandClay, graySand, gray; with fine laminae of lignitic sandSand, silty, gray, poorly sorted (mL-silt), micaceous, ligniticClay, sandy, yellow-ochre, micaceous; with multicolored bandingSand, wet (poor recovery)Sand and gravel, clean, white to pink, well-sorted (mil-gravel)Sand and gravel, silty, orange, poorly sorted with black coatings at lower contactClay, dark gray to brown, friable, thinly laminated; with sharp upper contactClay, brown to red, plastic; (no core, based on cuttings)

Depth(ft)

4.09.7

12.919.045.545.846.448.649.950.7

77.478.479.385.085.586.0

105.9107.5118.0120.0

Depth (ft)

0.710.412.414.818.627.231.547.049.050.353.055.155.460.267.369.275.085.686.993.0120.0

Thickness(ft)

4.05.73.26.1

26.50.30.62.21.30.8

26.71.00.95.70.50.5

19.91.6

10.52.0

Thickness (ft)

0.79.72.02.43.88.64.3

15.52.01.32.72.10.34.87.11.95.8

10.61.36.1

27.0

15



Sand grade scale


1,410-2,000 vc1,000-1,410 vc

710-1,000 cU500- 710 cL350- 500 mU250- 350 mL177- 250 fU125- 177 fL88- 125 vf62- 88 vf

UL

UL

Description Depth(ft)

SITE 6

Soil, siltySilt, clayey, orange and gray mottledSand, orange and tan, well-sorted (mL)Clay, gray and lavender mottled, friableSilt, clayey, gray and lavender mottled; with lenses of orange anClay, red, yellow and gray mottled; with silty lensesSilt, sandy, orange and gray mottledSilt, clayey, white and orange-stainedClay, red, plastic; with irregular white silt lenses

1.05.05.57.5

d gray silty sand 14.018.724.025.826.8

Silt, clayey, white, orange-stained 31.0Silt, sandy, light blue-gray, micaceous 32.7Sand, silty, white, orange-stained, micaceous 44.0Clay, dark gray, micaceous, lignitic; with lenses of light gray clayey sand 56.1Sand, tan and orange, well- sorted (mL) 58.7Sand, white and multicolored, well-sorted (mL) 65.3Silt, clayey, multicolored; with thin lignitic laminae 66.3Sand, white to tan and multicolored, well-sorted (mL) 77.1Sand, silty, poorly sorted 77.3Clay, silty, pink-brown, friable 77.6Sand, white to tan and multicolored, well-sorted (mL-cU) 82.5Sand and gravel, tan to white, coarse, well-sorted (ell-gravel); with occasional

white clay lenses 92.1Sand, silty, white to brown, lignitic 92.4Clay, pink-gray, plastic; with floating gravel 97.0Sand, brown, well-sorted (mU); with floating gravel 100.6Clay, pink-gray, plastic 105.3Sand, white, well-sorted (mL-cL) 113.0Clay, pink-gray, plastic 113.4Sand, silty, white 114.5No sample 116.5Sand, multicolored (white, pink, brown, tan) 118.5


SITE 7

Fill material 19.0Clay, chocolate-brown, plastic 19.8Sand, clayey, gray 22.3Clay, gray-brown, friable 23.0Sand, clayey, gray-brown; with lenses of dark gray clay 29.0Clay, red, brown, gray, and white marbled, friable 34.9Clay, sandy, light gray; with lithified sandstone fragmentsClay, red and gray mottledClay, sandy, light grayClay, gray, plastic, massiveClay, sandy, light grayNo sampleSand, silty, gray, poorly sorted (fU-mL), micaceous, lignitic, py

clay layersSand, dark gray-brown, well-sorted (mU)Sand and gravel, reddish-brown to yellow-brownSand, light gray, clean, well-sorted (mL-mU)Sand and gravel, yellow-brown; with black coatings on sandstone g

36.239.045.646.254.060.0

ritic; with some82.084.686.687.1

ravel 98.0Clay, sandy, light gray, friable 98.5Sand and gravel, white and orange- stained 114.0

Thickness(ft)

1.04.00.52.06.54.75.31.81.04.21.7

11.312.12.66.61.0

10.80.20.34.9

9.60.34.63.64.77.70.41.12.02.0

Thickness (ft)

19.00.82.5.7

6.05.91.32.86.60.67.86.0

22.02.62.00.510.90.515.5

16



Sand grade scale



Description

SHE 8

Silty soilClay, red, yellow and gray mottled, plastic, denseClay, red, plastic, dense; with irregular white, silty zonesClay, gray, friable, micaceous; mixed with red clay as aboveClay, red, plastic, dense; with irregular, white silty zones and an olive green,

mineralized front at the contactsSand, silty, light gray, poorly sorted, micaceousClay, red, plastic, dense; with irregular white zones, and green mineralization

as aboveSand, gray, well-sorted (fU-mL); with alternating lenses of dark gray, plastic claySand, gray to tan, well-sorted (mil)Sand, silty, gray, ligniticSand, gray, well-sorted (mL)Sand, silty, wet, brown; with red-black concretionsSand, clayey, white, (fU); with yellow and lavender laminaeSand, silty, multicolored, micaceousSand, brown, clean, well-sorted (mU); with multicolored laminae and gravel (1-4 in.)No sampleSand, gray (mL) cleanClay, gray and tan mottled, plastic, dense, micaceousNo sampleClay, sandy, dark gray, ligniticNo sampleClay, gray, micaceous, lignitic; with some floating gravel up to 0.5 in.

Description

SITE 9

Soil, brownSand, silty, gray and orange mottled, poorly sorted (fL-mlJ); with thin clay lensesClay, brown, red and gray marbled, plastic; with thin sand lensesClay, sandy, light gray; becoming more sandy with depthClay, sandy, chocolate-brown, friable; with thin sand lensesClay, marbled (gray, red, brown, yellow), hard, plastic; with sand lenses and

less distinct marbling near bottomClay and sand, thinly laminated, interbedded; with clayey, poorly sorted sand

and friable, sandy clayNo sample*Sand, clayey, light gray, micaceous; becoming more sandy with depthNo sampleSand, silty, light gray, micaceousNo sampleSand, pink to orange, clean, well-sorted (vfU-fL)No sampleSand and gravel, tan to orange, clean (fU-mL to gravel)No sampleSand and gravel as before

Depth(ft)

3.019.040.142.7

48.452.5

54.064.066.767.169.071.472.074.789.0168.4168.7170.7188.1190.1199.1199.8

Depth (ft)

0.49.7

12.429.035.0

83.7

94.0100.0102.8108.0108.9114.0115.0120.0121.0128.0128.8

Thickness(ft)

3.016.021.12.6

5.74.1

1.510.02.70.41.92.40.62.714.379.40.32.017.42.09.00.7

Thickness (ft)

0.49.32.716.66.0

48.7

10.36.02.85.20.95.11.05.01.07.00.8

* Moved boring location where land surface was at a slightly different altitude.

17

Table 2. Lithologic logs for well-clustler sites Continued


Sand grade scale



Description

SITE 10

Soil, silty, brown

Depth(ft)

0.4Silt, clayey, grayish-brown; with gravel and hard, black concretions 1.2Silt, clayey, orange-brown and gray mottled; with sand lenses 4.2

Thickness(ft)

0.40.83.0

Sand and gravel, tan to orange; clean, well-sorted sand (mL-mU) , and angulargravel (0.5-4.0 in.) 14.0

Sand, clayey, dark to light gray, orange-stained, poorly sorted, wet 29.9Clay, red, plastic; with irregular, white, silty lensesClay, red, lavender and yellow mottled, plastic; with irregular, v

silty lensesClay, gray, green and pink mottled, plastic; with some floating giClay, dark brown, red and gray mottled, plastic; with small iron <Clay, red, plastic; with irregular white silty lenses and olive mi

fronts at contactsClay, dark gray, plastic, ligniticClay, red and gray mottled, plasticClay, red and olive, plastic, tightSilt and clay, interbedded; white micaceous clayey silt with red,

plastic claySilt, sandy, wet, whiteClay, dark gray, friable

Description

SITE 11

No sampleSand, white, orange-stained, clean, well-sorted (mL-mU)No sampleClay, silty, white, friable, micaceousSand, multicolor-banded, white, clean, poorly sorted (£L-cL)

34.0hite,

39.0avel 42 . 0oncretions 60 . 0neralized

68.071.084.087.4

tight,97.2101.0104.0

Depth (ft)

134.0135.6156.0156.2157.3

9.815.94.1

5.03.0

18.0

8.03.0

13.03.4

9.83.83.0

Thickness (ft)

134.01.6

20.40.21.1

18



Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL


Description

SITE 13

Soil, sandy, grayish -brownSandy silt and clay, gray to grayish-brown, orange-mottled, lignitic; wet

below 1.4 ftSand, clayey, light gray and orange mottlingSand, gravelly, tan, well-sorted (mU); with thin, orange, clay lenses

Sand, gray and orange mottled, well-sorted (mU); with lenses of clayey sandClay, pinkish-gray to dark gray, friable, hard, micaceous; with white and orange

mottling, and lenses of sandy claySand and gravel, white, well-sorted (mU-cL); with purple and orange bands, and

thin layers of white, clayey sandSand and gravel, white, coarse (cL-cU to gravel)Sand and gravel, tan to white, poorly sortedNo sampleSilt, sandy, light gray to tan, micaceous; having less sand with depthClay, silty, dark gray, friableSand, silty, orange, poorly sortedSilt and sand, pink, lavender and tan mottled; grading from sandy silt to clayey

silt with depthClay, pink, lavender and tan mottled, friableSand, clayey, pink and tan mottled, poorly sortedSand, silty, orange to tan, well- sorted (mL)Clay, pink and tan mottled, friableSand, silty, pale-orange, well-sorted (mL)Sand, tan to orange, well-sorted (mU-cU)Clay, light gray, plastic; with small purple blotchesClay, light gray, brown, red and yellow-green marbled, friableSand, clayey, light gray, (vfU)Clay, silty, reddish-brown, friable, hard, micaceous; with small specks of lignite

Description

SITE 14

Soil, siltySilt, clayey, light brownSand, silty, orange-brown, well-sorted (fU-mL)Sand and gravel, orange-brown to tan, poorly sorted (mil-gravel); with gravel

up to 5 in.Sand, clayey, and gravel, orange-brown and graySand, silty, white to tan, well-sorted (fU-mL)Sand and gravel, orange, poorly sorted (silt to gravel); with gravel up to 4 in.,

and iron-cemented gravelSilt, sandy, light gray, micaceous; with thin lenses of red to lavender claySilt, orange-tan, clayey; with small iron concretionsSand, tan, clean, well-sorted (mL-cU)Sand and gravel, lavender to yellow-orange; with large cobbles, and white clay

lenses containing floating sand and gravelNo sampleSilt, sandy, tan-orange; with small maroon blotchesNo sampleSand and gravel, tan to whiteNo sampleSand and gravel, gray, poorly sorted (fL-gravel), ligniticNo sampleSand and gravel, clean, coarse*No sampleSand and gravel, clean, coarse*No sampleSand and gravel, clean, coarse*

Depth(ft)

0.6

4.05.0

1.58.2

13.5

19.020.729.039.042.744.044.9

46.347.748.650.350.754.058.259.066.474.979.0

Depth (ft)

1.22.93.6

10.011.412.6

16.417.719.020.2

24.033.5 '35.538.540.543.545.548.550.553.555.558.560.5

Thickness(ft)

0.6

3.41.06.5

1.7

5.3

5.51.78.3

10.03.71.30.9

1.41.40.91.70.43.34.20.87.48.54.1

Thickness (ft)

1.21.70.7

6.41.41.2

3.81.31.31.2

3.89.52.03.02.03.02.03.02.03.02.03.02.0

* Hole was washed prior to spoon drive and clay- to silt-sized particles probably were washed from the sample.

19



Sand grade scale

Grain size Term (in microns)

1,410-2,000 vc 1,000-1,410 vc

710-1,000 cU 500- 710 cL 350- 500 mU 250- 350 mL 177- 250 fU 125- 177 fL 88- 125 vf 62- 88 vf

U L

U t

Description

SITE 15

Sand, silty, brown, orange-stainedSand, clayey, gray, orange-stainedSand, gray-brown, orange-stained, clean, well-sorted (mU)Sand, gray, orange-stained, well-sorted (mU); with thin layers of clayey sandSand and gravel, orange; with quartz sand (mL-mll) and gravel (0.5-3.0 in.) mixed

with reddish-black, iron-cemented sandstone fragments up to 4 in.No sampleClay and sand, interbedded; with mostly gray clay containing (mL)

and floating gravelSand and gravel, multicolored (mL-cU); with some sandstone

orange sand lenses

Clay, white; with sand and gravel lenses and some red stainingSand and gravel, white, coarse (mU-vcL to gravel)Sand and gravel, maroon, coarse (mL-mll to gravel); with thin lenses of white claySand and gravel, silty, orange-brownSand and clay, interbedded; with dark gray clayey to silty sand (yfU-mL) and thin,

micaceous, lignitic clay layers containing floating gravelClay, multicolored (gray, brown, red, yellow, ochre), variegated

Description

SITE 16

Fill material, multicolored; mixture of clay, sand and gravelClay and sand, interbedded; with thin layers of orange, micaceous sand (fL-fU) in

light gray clay Sand, orange (mL-mll); interbedded with gray-brown sandy clay containing gravel and

iron concretionsClay, sandy, gray and orange mottled, friable; with gravelSand and gravel, wet, multicolored; with well-sorted (mU) sand, and consolidated

sand lensesSand, clayey, white and orange mottledSand and gravel, silty, light brown to yellow, poorly sorted (mL-

(0.1-0.2 in.) gravelSand and gravel, pink, maroon and orange; with (cL-cU) sand, and

on grainsSand, clayey, multicolored, thinly laminated (fU)Sand and clay, interbedded; with gray, fine (fU-mL) sand and dark

lignitic, micaceous claySand and clay, interbedded; with orange and pink fine clayey sane

lignitic claySand, multicolored, clean, well-sorted (mU-cL)No sampleSand and clay, pink-gray, finely laminated; with fine sand (vfU)

veil); with small

yellow clay coatings

gray, plastic,

, and pink-gray,

and friable, dense,lignitic and micaceous clay

Sand, clayey, brown-gray, poorly sorted (fU-mL), micaceousSand, light brown, clean, well-sorted (mL)No sampleSand, gray-brown, clean, well-sorted (mL); with thin layers of lignitic, micaceous,

sandy clayNo sampleSand and clay, gray-brown; mixed in indistinct lensesSand, gray-brown, clean, well-sorted (fU-mL); with lenses of clayClay, dark gray, friable, hard, micaceousSand, clayey, gray (fU-mL) micaceous

Depth (ft)

4.4.6.7.

10.12.

14.24.24.28.28.30.

53.64.

0345

00

769063

00

Depth (ft)

9.

10.

14.17.

23.24.

38.

40.44.

48.

51.60.75.

81.84.91.

100.

105.120.124.136.146.147.

0

9

08

80

0

73

1

200

0500

318583

Thickness (ft)

2021

22

290301

2211

0311

50

793167

70

Thickness (ft)

9

1

33

60

14

23

3

38

15

6369

5144

11100

0

9

18

02

0

76

8

180

0550

387735

20



Sand grade scale


1,410-2,000 vcU1, 000-1, A10 vcL


Description

SITE 17

Soil, silty, brownSand, clayey and silty, orange and gray mottled (vfU-fL); with sand becoming coarser

at depthSand, multicolored, well-sorted (mil); with thin laminae of light gray clayClay, sandy gray, maroon and orange mottledSand, clayey, white and orange to purple mottled; with small purple concretionsSand and gravel, white and multicolor banded; with well-sorted sand (mil), and gravel

becoming gravel becoming more abundant with depthNo sampleSand and gravel, wet, clean, coarseNo sampleSand and gravel, wet, clean, coarseClay, dark gray, plastic, micaceous; with gradational upper contactClay, brick-red and silver-gray mottled, friable, hard, micaceous; with red clay

becoming dominant with depthSand, gray, medium to fine (fU-mL); with dark gray clay lensesSand, dark gray, clean well-sorted (mL-mll), wetClay, dark grayNo sampleClay, dark gray, micaceous; with some small sand lenses

Description

SITE 18

Soil, brown; with orange mottlingClay, silty, orange and gray mottledSand, clayey, light gray and orange mottled, (fL-fU)Clay, sandy, red-brown, friable, micaceousSandy clay, dark gray to brown, thinly laminated; with thin laminations

of (vfU-fL), yellow sandClay, gray-brown; with orange streaksSand, multicolored, well-sorted (mL-mll), wet; with black-purple concretionsSand, white, clean, coarse (mU-cL); with small pebblesNo sampleClay, multicolored, mottled, friableNo sampleSand, silty, white, orange and red bandedNo sampleSand, silty, multicolor banded, mediumNo sampleSand and clay, laminated; with coarse (cL~cU) gray sand in dark gray

lignitic clayNo sampleClay, red-brown and gray marbled, hard, plasticNo sampleClay, red-brown and gray mottled, hard, friable; with some gray, silty zonesNo sampleClay, red-brown and gray mottled, hard, plastic

Depth(ft)

5.0

9.012.916.019.0

29.034.035.839.0A0.6Al.O

77.099.0

106.9107.0109.0115.0

Depth (ft)

1.917.018.83A.O

39.039.9AA.O5A.257.058.067.069.071.073.075.0

77.083.085.087.089.097.099.0

Thickness(ft)

5.0

A.O3.93.13.0

10.05.01.83.21.6O.A

36.022.07.90.12.06.0

Thickness (ft)

1.915.11.8

15.2

5.00.9A.I10.22.81.09.02.02.02.02.0

2.06.02.02.02.08.02.0

21

Table 2. Lithologic logs fox well-cluster sites Continued


Sand grade scale


1,410-2,000 voU1,000-1,410 VQL710-1,000 cU500- 710 cl*350- 500 mU250- 350 mL177- 250 fU125- 177 fL88- 125 vfU62- 88 vfL

FillSoilSand,Clay,Sand,Clay,SandSand,Sand

Soil,Sand,

Description

SHE 19

material; containing sand, asphalt and concretezone (prior to filling); with gray loamy soil and rootssilty, light gray, poorly sorted (silt-mL)silty, blue-gray, slightly plasticsilty, light gray, poorly sorted (silt-cL); with thin claysilty, dark gray and brown-pink banded, ligniticand clay, interbedded; with multicolored silty sand and siltmulticolored, (mL-mU) ; with abundant gravel near baseand clay, interbedded; with multicolored silty sand and clay

Description

SHE 20

sandy; with some clay

Depth(ft)

2.34.04.96.0

lenses 20 . 829.0

y, multicolored clay 53.059.064.0

Depth (ft)

1.3

Thickness(ft)

2.31.70.91.1

14.88.2

24.06.05.0

Thickness (ft)

1.3white (fL-fU) clean; with large iron concretions (up to 2 in.), and sandbecoming orange near bottom

No sampleClay,Sand,

sandy, whitesilty; with some clay

No sampleSilt,Sand,

clayey, and sand, white and orangeorange-stained, coarse (cU)

No sampleSand,Clay,Sand

Sand,

Sand

gray-brown, coarse (cU)white, hard, plasticand gravel, dry, poorly sorted (vfU sand to 0.5 in. gravel);of hard, plastic, white claywhite, wet, well-sorted (fl)-mL); with small purple concreticoarser, gravelly, and multicolored with depthand clay, interbedded; with numerous thin, alternating bedsmulticolored sand and gravel; with friable, silty clay

Description

SoilClay,Clay,

Clay,Clay,Sand,Silt,

SHE 21

silty, gray-brown to orange mottled, friable

14.021.522.023.530.031.231.760.565.065.3

with lenses66.4

ons , becoming74.5

of poorly sorted,89.7

Depth (ft)

0.810.2

12.77.50.51.56.51.20.5

28.84.50.3

1.1

8.1

15.2

Thickness (ft)

0.89.4

silty, multicolored (brown, red, purple, yellow, pink), mottled, hard, friable;with dark brown concretions 18.4silty, light gray to white; mixed with (vcL) sand near bottom 20.8silty, white; with purple lenses 23.4silty, multicolored, fine; with purple lenses bordered by yellow 26.6clayey, white; with yellow mottling 29.0

8.22.42.63.22.4

22



Sand grade scale



Description

SITE 22

Soil, light gray to brownSand, clayey, dark brown, (mL-mU)Sand, tan to buff,(mU), fairly cleanClay, white, plasticSand, white, (fL-fU), cleanNo sampleSand, tan, (mL), cleanNo sampleSand, tan,(mL), clean,; with some pebbles up to 0.3 in.No sampleSand, tan,(mL), cleanNo sampleSand, tan to gray, (mL-cU)No sampleSand, tan to gray, (mL-cU)No sampleSand, tan to gray,(vcU)No sampleSand and gravel, tan to gray; with medium sand and gravel up to 0.3 in.No sampleSand and gravel, tan to gray, coarseNo sampleSand and gravel, tan; coarse with cobbles up to 5 in. , and iron-cemented gravel

near bottom, coated with dark gray, plastic clayNo sampleClay, silver, soft, plastic; stuck to bottom of auger

Description

SITE 23

Soil, brown; with rootsClayey fill material, orange-brown; with asphalt and woodSand, clayey, orange to tan, (mL)Clay, silty, white, friable, micaceous; with abundant small red-purple concretionsSand, silty, multicolored, (mL-mU) ; with small lenses of white clay and small purple

concretionsSand, tan, wet, clean, (mL); with some orange staining and lenses of clayey silt

near bottomSand, clayey, light gray to orange, (fL-fU) ; with small, pink, silty clay lenses and

purple concretionsSand, pinkish-brown, poorly sorted (fU-mlJ); with green and ochre bands, and thin

lenses of white silty clay

Depth(ft)

1.35.9

18.519.020.523.025.027.532.537.539.541.545.949.251.254.556.559.661.664.766.770.0

73.090.090.0

Depth (ft)

0.47.8

10.311.1

14.0

29.3

34.0

39.0

Thickness(ft)

1.34.612.60.51.52.52.02.55.05.02.02.04.43.32.03.32.03.12.03.12.03.3

3.017.0

Thickness (ft)

0.47.42.50.8

2.9

15.3

4.7

5.0

23



Sand grade scale


1,410-2,000 voU1,000-1,410 vqL710-1,000 cU500- 710 cL,350- 500 mU250- 350 mL177- 250 fU125- 177 fL88- 125 v£U62- 88 vfL

SoilFillSiltSandSand

Sand

Sand

SoilFillSiltClaySand

Description

SITE 25

, brownmaterial, brown to gray; with clay, sand and gravel

, clayey, orange-brown and gray mottled, clayey, light gray and orange mottled, (mL); with red-black, white to gray and orange, clean, well-sorted (mL-mll); withconcretions, and thin clay lenses

Depth(ft)

0.64.0

11.5concretions 14 . 0red-black

17.3

Thickness(ft)

0.63.47.52.5

3.3, clayey, light gray, (mU); with small red-black concretions and some clay coatingson grains 19.0 1.7

, tan, wet, clean, well-sorted (mU); with small, white clay lenses, and sandturning gray near bottom

Description

SITE 26

, dark brown; with roots

29.0

Depth (ft)

0.3material containing silt, quartz pebbles, and brick fragments 2.0

, clayey, orange, silty, brown, sltly plastic, orange to tan,(mL-cL)

No sampleSand , pink, clean, well-sorted, micaceous; with small iron concri

near bottomNo sampleSilt , clayey, whiteNo sampleClaySandClay

, silty, dark gray, lignitic, gray, coarse; with some pebbles, dark gray, lignitic

Description

FillSiltSiltSandSandClaySiltSandSand

ClaySandSand

SITE 27

material containing rock and industrial slag material, gray to orange-brown, dry, clayey, gray, sandy, micaceous, light gray, medium to coarse (mL-cL), light gray to orange-brown, poorly sorted (silt-vfU), gray, very plastic, gray to orange-brown, clayey; with some sand, tan to orange, clean, medium (mL-mll); with some gravel, gray to orange-brown, silty; with upper contact markedby iron concretion

, dark gray, plasticand silt, gray to orange, clayey

, orange to tan, fine to medium (fU-mll); with some largecobbles

3.75.59.9

35.0itions, and gravel

49.363.069.0114.0125.2125.5126.3

Depth (ft)

4.07.6

10.411.314.015.018.322.4

23.826.930.6

34.0

10.0

Thickness (ft)

0.31.71.71.84.4

25.1

14.313.76.0

45.011.20.30.8

Thickness (ft)

4.03.62.80.92.71.03.34.1

1.43.13.7

3.4

24


Alphanumeric codes enclosed in brackets, at selected horizons, refer to color designations as specified in the Munsell Soil Color Charts (1975)

Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL


Description

SITE 28

Sand, brown, loamy; with cobbles and rootsSand, brown, clean, well-sorted (cL); clayey near bottomClay, white to pink-brown, friableSand, gray and brown; with irregular purple banding, and purple concretionsSand, tan to white, clean, (fU-mL) , micaceousNo sampleSand, tan, clean; becoming coarser with depth

Description

SITE 29

Soil, brown, loamyFill material; containing rock fragments, glass, and brickClay, gray, plasticSand, clayey, brown and gray, poorly sortedSand, wet, clean, well- sorted (mL)Sand, clayey, brown and gray, poorly sortedClay, purple to black, plasticSand, brown, wet, clean, well-sorted (ml))Clay, sandy, lavender-gray, plastic, ligniticSand, multicolored; with lenses of lavender gray claySand, brown-orange, wet, clean, well- sorted (mU)Sand, reddish-brown, poorly sorted (mU); containing pebblesNo sampleClay, multicolored, hard; containing some sand lenses and gravel

Description

SITE 30

SoilFill material; containing rock fragments, sand, and claySand, clayey, pink, brown and orange, (mL -mU); with purple nodulesClay, silty, gray-brown, hard, friable; with orange and pink mottlingSand and clay, gray and orange mottled; with layers of mixed sand and clayClay, multicolored, marbled, plastic, micaceousSilt, clayey, orange and maroon mottled, laminated, micaceousSand, multicolored, wet,(mU-vcU)Sand, multicolored, wet,(mL); with thin layers of white clay

Depth(ft)

3.88.0

15.315.623.828.838.8

Depth (ft)

3.79.1

10.713.715.216.918.119.740.043.759.260.273.775.7

Depth (ft)

0.15.15.8

17.625.226.231.741.042.5

Thickness(ft)

3.84.27.30.38.25.0

10.0

Thickness (ft)

3.75.41.63.01.51.71.21.6

20.33.7

15.51.0

13.52.0

Thickness (ft)

0.15.00.711.87.61.05.59.31.5

25



Sand grade scale


1,410-2,000 vc1,000-1,410 vc710-1,000 ell500- 710 cl

UL

350- 500 mil250- 350 mL177- 250 fti125- 177 fL88- 125 v£U62- 88 vf|L

Description Depth(ft)

SITE 31

Soil 2.8Sand, brown to tan, clean, poorly sorted (cL-vcU); with some gravel and cobbles 5.0Clay, gray-brown, lignitic; with some brown, (cL-vcU) sand lenses 9.0Clay, brown-gray, plastic, lignitic 16.5Sand, clayey, gray-tan, poorly sorted (mL-cL); with gravel and aSand, gray and orange-stained, well-sorted (mL-mU)Sand and gravel, gray to tan; well- sorted in zones of different c

with depth

Description

SITE 32

sharp upper contact 18.519.0

oarseness, coarser29.0

Depth (ft)

Soil, clayey 0.4Clay, sandy, orange-brown and gray mottled 3.5Sand, gray and orange-brown mottled, (mL) ; with some small clay lenses and some lignite 14.0Sand and gravel, red-brown, poorly sorted, (cL)to cobbles 15.6Sand and clay, lavender; with plastic clay, and(fL)sand 17.5Sand, lavender to tan.(fU-mL), well-sorted 22.0Sand and clay, interbedded, lavender; with plastic clay and fineClay, silty, gray-brown, dense

Description

SITE 33

sand 34.244.0

Depth (ft)

Soil 0.6Clay, sandy, gray and orange-brown mottled sandy 5.0Sand, clayey, gray and orange-stained, (fU) , clayey 9.0Sand, tan to orange, well-sorted 11.5Clay, sandy, gray and orange-brown mottled 12.1Sand, tan to orange, well-sorted 13.0Sand, clayey, gray and orange-brown mottled 18.6Sand and clay, lavender; with some gravel and ligniteSand, tan to orange, (mil); with some large cobblesClay, sandy, lavender and orange-tan mottledSand, tan to orange, (mil), well-sorted, ligniticClay, lavender, dense, lignitic; with small sand layersSand, orange and lavender, (mil) , well-sorted, lignitic; with some

layers near bottom

19.022.224.025.228.0

distinct clay59.0

Thickness(ft)

2.82.24.07.52.00.5

10.0

Thickness (ft)

0.43.110.51.61.94.512.29.8

Thickness (ft)

0.64.44.02.50.60.95.60.43.21.81.22.8

31.0

26



Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL

710-1,000 cU500- 710 cL350- 500 mU250- 350 mL177- 250 flJ125- 177 fL88- 125 vfU62- 88 vfL

Description

SITE 34

SoilSilt, clayey, yellow-brown and orange mottled, with lenses of dark red-brown, hard,

friable claySand, gray and orange-brown mottled, (fU-mL) , clean, well-sorted; wet near bottomSand and gravel, reddish-black; with large cobbles (up to 6 in.)Sand, white, wet, clean, well-sorted (mL)Sand, clayey, white and orange laminated, (mL)Clay, lavender, hard, plasticSand and clay, interbedded; with gray, (fU-mL) sand, and lavender claySand, orange, clean, well-sorted (mL)

Description

SITE 35

SoilFill material; containing clay, sand, gravel, and fragments of ceramic materialSand, clayey, and silt, light gray and orange-stained, micaceous; with hard iron

concretions and wet near bottomSand, gray and orange-brown mottled, well-sorted (mL-mU), wet; with a few lenses

of clayey sandClay, sandy, lavender and orange-stained, micaceousSand, light pink to tan, well-sorted (mL-mU), wetSand, bright-orange, (mL) ; with red-black iron concretions

Description

SITE 36

SoilClay, brownSand, clayey, orange-brown, well-sorted (mL); becoming more sandy toward bottomSand, tan, poorly sorted (fU-mU); with gravel and cobbles and some red-purple nodulesSand, gray,(mL), micaceousSand and clay, interbedded, lavender and orange-stained; with (mL) sand and plastic claySand, tan, well-sorted (cU); with orange staining

Depth(ft)

0.2

7.015.416.417.920.622.123.624.0

Depth (ft)

0.22.2

16.6

19.522.228.629.0

Depth (ft)

0.52.53.512.017.022.029.0

Thickness(ft)

0.2

6.88.41.01.52.71.51.50.4

Thickness (ft)

0.22.0

14.4

2.92.76.40.4

Thickness (ft)

0.52.01.08.55.05.07.0

27



Sand grade scale


1,410-2,000 vcU1,000-1,410 vet


Description

SITE 37

Fill materialSoilSand, silty, tan and gray mottled, (mU)

Depth(ft)

0.51.06.0

Thickness(ft)

0.50.55.0

Clay, sandy, lavender; containing thin sand lenses and becoming red, white andgray near bottom 19.0

Sand, tan to gray, poorly sorted (mL-cU); with some clay lenses and iron oxide layers 34.0Sand, silty, tan to gray, (fU-mU) 36.7Sand and clay, interbedded; with white to lavender sandy clay lenses 39.0Sand, pinkish- tan, poorly sorted (fU-mU) 42.0Sand and clay, interbedded; with tan sand and white, plastic, micaceous clay 43.0

Description

SITE 38

Fill material and soilClay, brown to gray, plastic, lignitic

Depth (ft)

2.06.0

Clay, sandy, lavender, gray and white; with distinct thin sand lenses 11.0Clay, dark gray, dense, plastic 18.5Sand and clay, interbedded; with lavender and orange sand, and dark gray, plastic clay 19.5Clay, dark gray, dense, plastic 32.5Clay and sand, interbedded; with lavender sand and dark gray-green, plastic clay 37.0Sand, tan and orange-stained, poorly sorted (mL-cU) 45.0

13.015.02.72.33.01.0

Thickness (ft)

2.04.05.07.51.0

13.04.58.0

Clay and sand, interbedded; with lavender and white, lignitic clay, and lavender,gray and white

Sand, clayey, gray to white and orange-stained, well-sorted (mU)

Description

SITE 39

Fill materialSoilSand, tan and orange-stained, (mlF-cL) ; with brown-gray clay

48.049.0

Depth (ft)

1.02.06.0

3.01.0

Thickness (ft)

1.01.04.0

Clay and sand, interbedded; with lavender, friable, thinly laminated clay andlavender to gray, fine to medium sand

Clay, lavender and white-streaked, massiveSand, tan and orange-stained, wet, well-sorted (mL-mll), micaceous

sparse clay lenses

Description

SITE 40

Fill materialClay, gray, plasticClay, sandy, gray and orange mottledClay, blue-gray to lavender, friable; with sand lensesClay, sandy, lavender and orange mottledClay, dark gray; with interbedded sand lensesSand, tan to lavender and orange-stained, well-sorted (mL-mU)Clay, lavender and orange mottled, dense; with sand lenses

14.018.5

and lignitic;49.0

Depth (ft)

1.02.14.08.2

19.024.033.034.0

8.04.5

30.5

Thickness (ft)

1.01.11.94.210.85.09.01.0

28



Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL


Description

SITE 41

SoilClay, brown, gray, and orange mottled, lignitic; with sand lenses and cobblesSand, tan.(cL-cU), well-sortedSand, silty, orange, ligniticSand and clay, interbedded; with tan to orange (mL-mU) sand and lavender to white

sandy clayClay, lavender, gray and orange mottled, dense; with iron nodules and iron-cemented

gravelSand, tan and lavender, orange-stained, poorly sorted (vfU-fU); with thin clay

lenses near bottomSand, tan to lavender, well-sorted (fU-mL), micaceous, lignitic; with thin clay

lenses near bottomClay and sand, interbedded; with lavender sandy clay, and orange-stained, lavender

(mL -mU) sandSand, lavender, orange-stained L-mU)

Description

SITE 42

SoilClay, brown; with some cobblesSand, clayey, tan to brown, (mL-mU)Sand, tan and brown-stained, fairly well-sorted (mU-cL)Clay, lavender and orange mottled; with some lenses of red-gray plastic clayClay, sandy, lavender and orange mottled; with thin sand lensesSand, lavender to tan, (mL -ml)); with thin clay lensesSand and clay, interbedded; with tan to lavender, (mL-mU) sand, and lavender

and orange mottled clay

Description

SITE 43

Fill materialSand and clay, interbedded; with tan, (fU-mL) sand and tan silty claySand, tan, orange-stained, well-sorted (mU-cL); with clay lenses that increase in

frequency and thickness with depth, also gravel and cobbles near bottomSand and gravel, yellow-orange, coarse; with cobbles up to 2 in. commonSand, tan and orange-stained, (cL-vclJ); coarsening upwards

Description

SITE 44

SoilSand and clay, interbedded with tan to orange clayey sand, and brown, micaceous

sandy clayClay, gray and orange mottledSand, tan, orange, and purple mottled, (cL-cU); with thin clay lensesSand and gravel, tan and orange mottled, poorly sorted; with numerous large cobbles

Depth(ft)

0.57.59.510.1

17.5

23.1

32.6

51.0

53.059.0

Depth (ft)

0.52.57.0

17.024.026.530.0

34.0

Depth (ft)

2.05.5

20.529.034.0

Depth (ft)

0.5

7.09.510.513.5

Thickness(ft)

0.57.02.00.6

7.4

5.6

9.5

18.4

2.06.0

Thickness (ft)

0.52.04.5

10.07.02.53.5

4.0

Thickness (ft)

2.03.5

15.08.55.0

Thickness (ft)

0.5

6.52.51.03.0

29



Sand grade scale

Grain size Tern) (in microns)

1, A 10-2, 000 vctj 1,000-1,410 vcL

710-1,000 cU 500- 710 cL 350- 500 mU 250- 350 mL 177- 250 fU 125- 177 fL 88- 125 vfll 62- 88 vflj

Description

SIT! 101

Silt, sandy, brownFill material, sand and silt with large fragments of rock and smaller gravel,

orange-brown, rootsSilt, clayey, dark red-brown and brown mottling, with lenses of fine sand, roots,

and orange staining, moistSand, dark red to orange-brown, (fU-mU), wet; with sparse gravel (<0.2 in.)Sand, dark red to orange-brown, (fU-mU) , interbedded with sandy, light gray clayClay, sandy, dark gray, soft, friable, micaceous; with streaks of light gray

fine (fL) sand, grades to pinkish gray color in placesSilt, clayey, light gray to pink, hard; with fine (fL), micaceous j clayey sand

lenses, and orange silt lensesSand, dark brown-orange, micaceous, wet; with dark mineral grains and a

fragment of red sandstone at 16 ftSilt, clayey, pink, orange-streaked, soft, micaceousSand, dark brown-orange, poorly sorted, (fU-mU) (mainly mL)Sandstone, maroon, orange and red, fine-grainedSand, dark brown-orange, poorly sorted, (fU-mu) (mainly mL)Sand, multicolored, poorly sorted (fU-mU) (mainly mU), wet; with red to black

sandstone, and light gray, micaceous clayNo sample

Description

SITE 102

Soil zone, silty, brown-orange-tanClay, silty, orange-brown-tan mottledClay, silty, gray-green-orange mottledClay, silty, orange-tan mottled; with brick-red clay lensesClay, red, denseNo sampleClay, red, denseClay, red, dense; with white silt lenses, increasing with depthSilt, sandy, whiteSilt, sandy, white, micaceous; wet near bottomSand, clayey, light gray, yellow-orange stained, [10YR 7/1] (fL-fll), fairly tight,

micaceousSand, silty, light gray, light yellow, and red mottled, [10YR 7/1] (fL-mL)

(mostly fU), micaceous, wetNo sampleSand, silty, light gray, (fU-mL) (mostly fU); with clayey sand lenses, and

purple and orange bandingSand, dark gray, (fU-mL) (mostly mL), micaceous; with black staining and yellow

mottling; top 1.4 ft wet; lignite specks in thin bands near bottomClay, dark gray, friable; with light gray and orange, (fU-mL) , micaceous,

sand lenses, [10YR 3/]Sand, light gray and orange mottled, (fU-mL) , moistClay, dark gray, friable; with orange and light gray , ( fU-mL ) , sand lensesNo sampleSand, silty, multicolored, (fL-mU) , micaceous, wet; with well-rounded quartz grains,

dark mineral grains, and iron concretionsNo sampleSand, multicolored, (fL-mU) , wet

Depth (ft)

0.3

4.0

6.310.511.5

14.0

14.9

16.016.218.218.319.0

22.824.0

Depth (ft)

1.54.05.79.011.514.019.027.029.034.0

39.5

42.344.0

49.0

51.4

51.952.453.054.0

57.759.063.7

Thickness (ft)

0.3

3.7

2.34.31.0

2.5

0.9

1.10.22.00.10.8

3.81.2

Thickness (ft)

1.52.51.73.32.52.55.08.02.05.0

5.5

2.81.7

5.0

2.4

0.50.50.61.0

3.71.34.7

30



Sand grade scale

Grain size(in microns)

1,410-2,0001,000-1,410

710-1,000500- 710350- 500250- 350177- 250125- 17788- 12562- 88

Description

SITE 104

Clay, brick-red, hard, friable; with silty mottling of brown,ochre-yellow and light gray

Sand, clayey, light gray, (fL-fU) , micaceousClay, dark gray-orange mottledSand, clayey, light gray, micaceousSand, silty, dark brownClay, dark gray and orange mottledSand, silty, light gray, micaceousClay, dark gray and orange mottledSand, silty, light gray, micaceousSand, clayey, light gray-orange mottledSand, silty, light gray; with some orange bandsSand, silty, pink- tan, fine- to medium-grainedSand, white-buff, fine- to medium-grainedSand, orange-red, fine- to medium-grainedSand, white-buff, fine- to medium-grainedSand and gravel, red-orange, coarse (to 2 in.)

Term

vcUvcLcUcLmUmLfUfLvfUvfL

Depth(ft)

58.759.561.564.064.567.568.770.371.074.089.091.094.094.797.099.0

Thickness(ft)

9.70.82.02.50.53.01.21.60.73.0

15.02.03.00.72.32.0

Sand and gravel, red-orange, coarse (to 2 in.); sharp lower contact bounded byrusty iron concretion

Clay, gray-orange mottled; with sharp lower contactSand and gravel, coarse, rust-stainedNo sampleClay, gray-orange mottledNo sample, (probably sand)Sand, red-brown, medium- to coarse-grained; with some gravelClay, grayClay, light gray, plastic

100.2103.0104.0106.0109.0114.0118.4119.0124.0

1.22.81.02.03.05.04.50.55.0

31



Sand grade scale

Grain size (in microns)

1,410-2,0001,000-1,410

710-1,000500- 710350- 500250- 350177- 250125- 17788- 12562- 88

Term

vclvclcUcLmU

I

mLfUfLvfUvfL


Thickness (ft)

SITE 106

Soil zone; with rootsSand, clayey and silty, light gray, tan and, brown-orange (iron stain)

mottled,(mL-mU) Silt, light tan-gray,(fL), micaceous; with subrounded, quartz pebbles

up to 2 in.Sand, clayey and silty, light gray, iron-stained,(fU-mL); with peobles Sand, silty, gray,(fU-mL), micaceous Sand, silty, brown-orange and light gray layered,(fU-mL), micaceous;

with some pebblesSilt, clayey, light tan-gray, micaceousSand, clayey, orange, poorly sorted, wet; with some pebbles Clay, silty, orange, wetSilt, clayey, medium gray, wet; coarsening downward Sand, silty, light gray and iron-stained, well-sorted; with thin,

fine-grained gray, clayey sand layers Silt, clayey, dark gray, micaceous Sand, silty, dark gray,(mL-fU), wetSand, clayey, dark gray,(mL-mU), wet; coarsening down Sand, light to dark gray, (mil), clean well-sorted Sand, silty, gray, micaceous,(mL), wet; with dark mineral grains Sand, silty and clayey, gray, hard, friable Sand, dark gray,(mU-cL), poorly sorted; with pebbles, a large cobble,

and clayey sand lensesSilt, clayey, tan-gray, micaceous; with some pebbles and lignite fragments Clay, light tan-gray, plastic, micaceous; with lignite specks Clay, dark gray; with abundant lignitized twigs and branches, some

layers composed entirely of lignitized woodSand, clayey, tan-gray,(fU), wet; with sparce lignite fragments No sample Sand, light olive-gray [5Y 5/2], (mU-cL), wet; light gray {5Y 6/6} sand nodule

found at base, with light olive-brown center, 0.1 ft diameter Clay, moderate brown [5YR 4/4], hard; with medium light gray silt stringer No sample Silt, clayey and sandy, red-brown and olive-gray, mottled; with sbme

lignite, and with a cobble at base Clay, silty, gray-brown [SYR 3/2], moist; with moisture diminishing downward;

sparsely scattered lignite 1.2 ft to base, up to 0.2 in. fragments Silt, light gray; with dark gray chert-like nodule Siltstone, light graySilt, gray-brown, with gravel, rock fragments, and lignite No sample Sand, clayey and silty, light gray,(fU-fL); interbedded with dark gray clay

and silt containing lignite fragments, some pebbles and graysiltstone cobbles

Clay, silty, dark gray; with occasional lignite fragments, and abundantsandy (vfL) silt stringers

Silt, clayey, dark brown-gray, micaceous, hard, friable; with one rockfragment at top

Silt, clayey, dark brown-gray, tight, micaceous; with irregular silt layers Silt, clayey, dark brown-gray, hard, friable, micaceous; with some tiny lignite

fragments, interbedded with fine laminae of tan-gray,(fL-mU), silty sand No sample Silt, clayey, dark brown-gray, hard, micaceous; interbedded with sandy,

light tan-gray siltSand, silty, light tan-gray,(fU); with tiny, sparse lignite fragments Silt, clayey, dark brown-gray, micaceous Silt, clayey, dark brown-gray, hard, micaceous; mixed with light tan-gray,

(mL-mU) silty sandSand, silty, dark gray-brown,(mU-cL); with sub-rounded quartzite pebbles Sand, yellow to gray [5Y 7/6-7/2], mil; with occasional quartz pebbles

0.8

4.6

5.4 5.6 7.2

7.8 8.5 9.0 9.3

10.9

12.513.216.917.719.020.821.7

23.524.025.8

31.834.044.0

46.447.349.0

54.0

57.557.858.058.359.0

63.0

64.0

69.074.0

77.78.

80.281.582.2

84.8488.5

0.8

3.8

0.8 0.2 1.6

0.6 0.7 0.5 0.3 1.6

1.6 0.7 3.7 0.8 1.3 1.8 0.9

1.8 0.5 1.8

6.0 2.210.0

2.41.3 1.7

5.0

3.5 0.3 0.2 0.3 0.7

4.0

1.0

5.0 5.0

3.50.6

2.1 1.3 0.7

1.8 0.5 3.0

32



Sand grade scale


1,410-2,0001,000-1,410710-1,000500- 710350- 500250- 350177- 250125- 17788- 12562- 88

Term



Thickness (ft)

SITE 107

Soil zone, loamy, dark brown; with roots, organic material, recent debris,glass, and a A-in.-long piece of steel 0.5 0.5

Silt, yellow-brown, hard; with roots, sporadic white mineralized zones, andfine sand near bottom 7.0 6.5

Sand, gray-brown, orange-stained,(mL-mU), micaceous; with plant roots 8.5 1.5 Sand, dark brown,(mL); with black staining of unknown origin, and silt lense at base 9.0 0.5 Clay, pink-red, hard; with brown-red laminae that include black staining; stringers

of reduced light gray clay, and gray to mustard,(fL-fU), sand lenses 17.2 8.2 Clay, dark red, dense, plastic 19.0 1.8 Clay, brick-red, dense, tight; with some lignite, black staining, and white mottled

mineralized zones 25.0 6.0 Sand, silty, pink-gray, yellow-brown stained,(fL-fU) (mostly fL), quartzose, micaceous 28.3 3.3 Clay, brick-red, micaceous; with some white mottling 29.0 0.7 Clay, silty, red-brown, hard, dense, micaceous; with white reduced zones, and hard,

brown semiconsolidated inclusions 41.8 12.8 Silt, sandy, dark gray, laminated, fissile, micaceous; becoming more consolidated

with depth 45.0 3.2 Sand, medium gray,(mL-mU), micaceous; with lignite and silt lenses 45.8 0.8 Silt, sandy, gray, lignitic, micaceous; with gray,(fU fL), semiconsolidated

sand lenses 46.0 0.2 Sand, silty, red-orange to buff,(mU-cL), quartzose; with iron-cemented

sandstone-siltstone rock fragments, (0.2-3.0 in.), and clay inclusions 47.3 1.3 Clay, silty, light gray to white, highly plastic, micaceous, homogeneous 48.3 1.0 No sample 49.0 0.7 Sand, buff to orange,(cU), quartzose; with gravel as subrounded quartz fragments

(1.0-1.5 in.), and sparse iron-cemented conglomeratic sandstone 52.5 3.5 No sample 87.0 34.5 Silt, clayey, orange and light buff, friable; with sparse quartz gravel, and

interfingered with gray clay, sand lenses, and thick layers of lignite 89.0 2.0

33



Sand grade scale


1,410-2,000 vc0 1,000-1,410 vcj.

710-1,000 cU 500- 710 cL 350- 500 mU 250- 350 mL 177- 250 fU 125- 177 fL 88- 125 vfU 62- 88 vfL

Soil,Sand,

Sand,

Silt,

Description

SITE 108

silty, zone, light gray; with roots

Depth (ft)

0 5

Thickness (ft)

0 5light orange, (mL-mU); becoming moist at 3 ft, with quartz pebbles (<0.2 in.),and small clay lenses 7 3 6 8clayey, orange and light gray, (mL-mU) , micaceous; with irregular color bands,maroon iron concretions, and quartz pebbles 9 0 1 7clayey, multicolored; with tight, micaceous, (mL-mU) , multicolored, sand inirregular lenses, and some clay; also with small maroon nodules

Sand,Sand,Sand,

No saiSand,

dark orange, red-stained, (fU-mL) , clean, wetsilty, orange to red-orange, (fU-mL) ; with iron-cemented red sandstone

131415

509

401

559

yellow to red-orange, (mU-cL) ; with 0.3 in. pebbles mixed with soft, micaceous,light gray and pink silty claynple

1819

light tan to orange, (mL-clI) (mostly mU), quartzose, micaceous; with some darkmineral grains

No sampleClay,Clay,Clay,

Clay,

Silt,Clay,Silt,Sand,

silty, multicolored; with small, hard, friable, micaceous, 'silty, multicolored; with small lenses of fine-grained lighsandy, light gray to pink, (fL-fU) , micaceous; with a gradatyellow to orange, red-stained, (fU-mL) sand in thin lensessandy, purple and light gray; mixed with micaceous, (fU-fL) ,clayey sand; sand diminished at bottom 2 ftclayey, mustard, red, brown and light gray mottled, micaceosilty, dark gray, dense, micaceous

white stringers. gray sand.onal contact with

brown-green mottled

CIS

sandy, olive gray and mustard, micaceous; with medium-grained sand layers

22242937

39

44484952

00

0003

0

0005

21

3258

1

5413

10

0003

7

0005

multicolored, (mU-vcU), conglomeratic, micaceous; with semiconsolidated maroonsandstone nodules, sparse clay lenses, and quartz pebbles up to 1.5 in. long 54 0 1 5

34



Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL


Description

SITE 109

Soil zone, medium brownFill material, light orange-brown; containing large pebbles, cobbles, and

organic-rich, orange-brown, clayey silt hard packNo sampleClay, red-brown and light gray mottled (light gray possibly due to reducing

conditions); gray increasing near base, and containing plant fragmentsClay, silt, and silty sands, multicolored, mottled, hard, tight; gradationally

coarsening downward, with sand lenses up to(fUrmL)Silt, mustard, gray-brown, and light olive-gray, soft, plasticSand, gray, (fU-mL), organic-rich, finely laminated; with fairly tight mustard

to red clay stringersSand, silty, gray, mustard, and purple, finely laminated, wet; with wet, lignitic,

micaceous clay stringersSilt, dark olive-gray, micaceous, hard, friable; with sparse orange staining

and ligniteSand, multicolored, mottled, (mL), quartzose; with black grains throughout (possibly

lignite or mineral grains), maroon stringers, and consolidated silt fragmentsSilt, clayey, brownSand, maroon, tan, mustard, (mU-cU) (coarsening downward), micaceous; with pebbles

at base, abundant small black fragments throughout, and consolidated siltfragments

No sampleClay, silty, dark gray, plastic; with lignite fragments up to 0.4 in.No sampleSandClay, dark gray to purple-gray, hard, plastic; with lignite up to 1.2 in. long

Description

SITE 110

Soil, silty, zone, dark brown to yellow-brown, orange-mottled; with abundant rootsSand, silty and clayey, light gray, orange-mottled, (fU-mU) (coarsening downward);

with dark gray clay lensesSilt, clayey, pink-gray, dark gray, and orange mottled; with small ,( fU-mL) ,

friable, bright-orange sand lensesClay, multicolored (hues darkening with depth), lignitic; with hard, friable,

micaceous, fine-grained sand lensesClay, sandy, mottled, (fL~fU); with irregular bands and thin layers of sand, and

some large lignite fragmentsClay, sandy, gray-red mottled, (fL-fU), lignitic, micaceous; becoming more sandy

and fairly clean with depthSand, light gray-tan, (fU-mL) , micaceous, moist; with some light brown clay lensesSilt, clayey, and sand, yellow-orange, micaceous; with (fU-mL) sandSand, white, (mL), wet, with sparse pebbles (0.2 in.), small balls of clayey sand,

and orange staining in thin bandsClay, white, micaceous, plastic; interlayered with white sand containing small

red-maroon nodulesSand, white, (mil), micaceous, wet; with patches of black staining, and thin layers

of micaceous, clayey sandSand, clayey, white, (mil), tight, micaceousSand, multicolored, (mll-cU), looseSand, silty, multicolored, (mL-mU), micaceous; with some thin clay layers, and

irregular multicolored banding

Depth(ft)

0.5

2.04.0

14.0

24.827.3

29.0

30.5

31.7

34.034.5

39.054.057.059.065.069.0

Depth (ft)

1.0

3.4

4.0

14.0

19.0

31.132.032.9

33.7

34.0

36.236.737.5

39.0

Thickness(ft)

0.5

1.52.0

10.0

10.82.5

1.7

1.5

1.2

2.30.5

4.515.03.02.06.04.0

Thickness (ft)

1.0

2.4

0.6

10.0

5.0

12.10.90.9

0.8

0.3

2.20.50.8

1.5

35



Sand grade scale

SandySand,

Sand,Clay,

Clay,Silt,

Sand,Sand,Sand,

Sand,Sand,

SoilSilt,

Sand,Silt,

Clay


1, A 10-2, 000 VCU 1, 000-1, AID v<|:L

710-1,000 cO 500- 710 cl. 350- 500 mU 250- 350 ml. 177- 250 fir 125- 177 fl. 88- 125 vJtt 62- 88 vliL

Description

SITE 111

soil zone, medium brown, with grass rootssilty, orange-brown, (fU-mL); with numerous small (O.A in.] , mU, white sandlenses, red to gray discontinuous clay lenses, and abundant, quartzite pebblesorange-brown, (mU); with fragments of concrete (0.8-4.0 in,), and fill materialsilty, light gray, tight; with abundant maroon, orange-brovm, discontinuousclay stringerssilty, multicolored, mottled, tight, friable; generally coarsening downwardsandy, light gray; generally coarsening downward, with sand (fL-mL), andabundant yellow-brown stainingsilty, light gray, yellow-brown stained, (fL-mL); generally coarsening downwardlight gray, (mU-cL)silty, light gray, (fU-mU); with abundant orange-brown and maroon staining, andsome clay contentlight gray and maroon mottled, (mU)multicolored, mottled, (cL-vcL)

Description

SITE 112

zone, dark brownclayey, orange-brown; with medium-grained sand lenses, sparse pebbles, andsmall rootspale orange, (mL-mU), dry; with thin, white-pink silt lensesclayey, dark black and brown, organic-rich; with sharp upper contact; orangeto brown medium-grained sand stringers common, also some light gray silt

and silt, dark gray, micaceous, friable; with fine-grained, light gray sandlenses, and becoming more clayey near bottom

No sampleSilt,SandClay,

Soil

sandy, orange and gray, finely laminated, lignitic, micaceous; with some clayand gravel, white to pink, orange-stained, coarsewhite, plastic; bounded by hard, red iron concretions

Description

SITE 113

zone, brown; with roots

Depth(ft)

0.3

2.12.7

A.O6.3

9.01A.O15.0

2A.726.529.0

Depth (ft)

0.2

1.43.7

14. 0

23.024.029.031.532.0

Depth (ft)

0.2

Thickness(ft)

0.3

1.80.6

1.32.3

2.75.01.0

9.71.82.5

Thickness .(ft)

0.2

1.22.3

10.3

9.01.05.02.50.5

Thickness (ft)

0.2Fill material; with rock fragments, pebbles, (fL-mU) sand, and orange-brown mottled

Sand,Sand,

Silt,

Sand,

Sand,Sand,Silt,

Sand,

siltclayey, mottled orange-brown and gray-brown, (fL -mU) , micaceous, odd smellbright orange, (fU-cL), moist; with red, maroon, and black iron concretions,quartz cobblesclayey, tight; interbedded with thin layers of (fU-cL) sand, and claydecreasing with depthsilty, brown-orange, poorly sorted; with gravel lenses held together byclayey silt, and fragments of red-black sandstoneclayey, pink-tan, (fL-fU), micaceous; with thin orange bandinggray-tan; interbedded with dark gray clayey siltclayey, pink-tan, micaceous; interbedded with tan clay and fine-grained.light gray sand; contains some orange stainingsilty, bleached white, wet; with some thin purple, yellow, and orangebanding in upper 0.5 ft; sharp upper contact and iron concretions atbase

2.34.0

9.3

12.2

14.316.818.2

21.6

29.0

2.11.7

5.3

2.9

2.12.51.4

3.4

7.4

36



Sand grade scale



Description

SITE 114

Soil zone, brownFill material; with brown, (mL-cL) sand, gravel, rock fragments, sandstone,

asphalt, and metalSand, light brown-gray, (fL-mU), with thin, black layer at top, and clayey,

brown silt lenseSand, multicolored, (fU-mU), wet; with irregular bsnding; and gray, clayey

sand lensesSand, light yellow-tan, (fU-cL), clean; with sparse light gray clay lensesNo sampleSand and gravel, purple, orange, and tan, (mil-ell); with white to light gray.

silty, micaceous claySilt, clayey, and sand, pink and orange-mottled, micaceous; sand (fL-fU), coarsening

downward

Description

SITE 115

Sandy soil zone, medium brown, (mU), hard; with some silt and fill materialNo sampleSilt, sandy, light tan-brown, with large slag pebblesSand, light yellow-gray, (mU-cL) ; with some clayey and silty zonesNo sampleSand, quartzose, light orange-tan, (mU-cL) , moist; with maroon silty stringers,

and consolidated clay stone pebbles at baseNo sampleSand, quartzose, orange-tan, (mU-cL) ; maroon mottling near baseSand, silty, light yellow-tan, (mU-cL) ; with some maroon silt layers, and

consolidated siltstone fragmentsNo sampleSand, silty, light tan to orange and gray, (mL-cL) , micaceous, wet; with some

silt layersNo sampleSand, light gray and tan, (mL-cL); with maroon staining, and clayey silt

stringers

Description

SITE 117

No sampleClay, yellow-red mottled [SYR 4/6], hard, friable; with thin, light gray silt

lenses, and thin, fine-grained partings of (mL) , yellow-red sand, also somethin lenses of wet, light gray, clayey sand

No sampleSand and gravel, light red-brown [SYR 6/4], (mL-vcU); sand has black staining and

contains red-yellow bands [7. SYR 6/8]No sample

Depth(ft)

0.1

7.7

9.0

10.817.019.0

24.0

29.0

Depth (ft)

2.04.05.0

13.214.0

18.419.022.1

28.329.0

41.244.0

48.0

Depth (ft)

34.0

44.079.0

83.898.8

Thickness(ft)

0.1

7.6

1.3

1.86.22.0

5.0

5.0

Thickness (ft)

2.02.01.08.20.8

4.40.63.1

6.20.7

12.22.8

4.0

Thickness (ft)

34.0

10.035.0

5.015.0

Sand and gravel, light red-brown [SYR 6/4], (mL-vcU); gravel disappears with depth

sand has black staining, and103.8 5.0

37



Sand grade scale


1,410-2,000 vcU

Sandy

1,000-1,410 v710-1,000 c500- 710 c350- 500 m250- 350 m177- 250 f125- 177 f88- 125 v62- 88 v

Description

SHE 118

soil zone, light tan-gray; with pebbles and fill materialNo sampleSandySilt,Silt

Sand,Sand,

soil zone, light tan-gray; with pebbles and fill material

:LJ

J

J

bCL

Depth(ft)

1.04.04.4

clayey, olive-gray, lignitic; with light gray reduced zones 9.0

Thickness(ft)

1.03.00.44.6

and clay, red, yellow, and brown, lignitic, micaceous, dense; with maroonnodulessilty, gray to brown, (fU-mL); with finely laminated light

21.3and dark gray layers 25 . 3

12.34.0

yellow, brown, and purple, (mL-cU) (coarsening downward), micaceous,quartzose; with clayey lenses near top, and iron-cemented sandstone and

SoilSand,Silt,

Sand,Clay,Clay,Clay,Iron

siltstone layer at upper contact; bottom 0.5 ft wet

Description

SITE 120

zone, tan, dry; with rootssilty, tan to cream, (mil); with olive, silty clay lenses

29.0

Depth (ft)

0.54.3

3.7

Thickness (ft)

0.53.8

clayey, white, dense, hard; with red, dense clay that contains orangemottling near basesilty, white, (fU-mL), damp

25.729.0

dark red and olive mottling; with white silt in alternating bands with clay 42.3dark brown, layered with sand, silty, light gray 46.0dark gray, dense, hard; containing silt and sand that increases with depth 54.0concretion, hard, followed by running sands

Description

SITE 122

Fill material, loose; with black gravelly debrisSilt,

Sand,Silt,

clayey, light gray and orange mottled, micaceous; with thiisand lensesand gravel, orange to light grayclayey, light pink-gray and orange mottled, hard, friable

No sampleSilt,

Sand,Clay,Sand

54.1

Depth (ft)

0.7L, (fL-mU),

5.06.67.59.0

21.43.313.33.78.00.1

Thickness (ft)

0.7

4.31.60.91.5

clayey, light pink, hard, friable; with some imbedded quartz gravel, andpale-orange, (mL) sand lensessilty, white, (fU-mL), wet; with some clay

9.811.7

silty, pink-gray [7. SYR 7/2], hard, friable; with orange-white mottling 13.9

0.81.92.2

and gravel, red-yellow, orange-stained, micaceous, wet; with (mil-veil) sand,and white, sandy clay 29.0 15.1

38



Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL


Description

SITE 123

Soil, silty, zone, gray-brown; somewhat clayeySilt, sandy, orange-brown [10YR 6/6], gray, and rust [2. SYR 4/7], dry; with

sparse clay lensesSand, orange-brown [10YR 6/3], fine-grained, wetSilt, mottled, dense, dry, sharp contact with sand above, iron concretions

with pebbles at contactSand, silty, gray, (vfL-mL), poorly sorted, micaceous, wet; intermixed with

clay near baseClay, silty, red [2. SYR 3/4], ochre, and light gray marbled, soft, plastic,

micaceousSand, clayey, light gray, (vfU-fU), micaceousClay, silty, multicolored marbled, soft, plasticClay, yellow-ochre, light gray, and red marbled, hard; with silt and sand

lenses, and iron concretionsSand, clayey, light gray, (vfU-fL), micaceous; intermixed with hard, olive-green

to gray, silty clay; with thin partings of clean, fU, orange-red sandNo sampleSand and gravel, multicolored, poorly sorted, micaceous; with iron-cemented

sandstone, small nodules of white silty claySand, multicolored, (fU-mL), micaceous, wet; color banded; includes silty fine

grained layers, and dark mineral grainsNo sampleSand, silty, white, (fU-mL), micaceous; multicolored at top, becoming predominantly

white towards bottomSilt, clayey, white, micaceous, banded; with small purple nodules and poorly

sorted, clean, micaceous, (fL-mL), white and orange sandSand, white, purple, and orange-brown, banded, (mL-mU), micaceous, wet; with some

dark mineral grains

Description

SITE 124

No sampleSand, silty, orange-brown, (fL-mL), micaceous; coarsening downwardSilt, sandy, gray, quart zose, micaceousSand and silt, orange, brown, tan, and maroon mottled, (mL), micaceous, poorly

sorted; with iron-cemented nodules at upper contactSand, orange and brown, (mL-mU), quart zose, wet; coarsening downward, iron-

cemented nodules, and small black mineral grains presentSand, orange-brown, (mll-cL), quart zose, wetNo sampleSand, orange-brown, (cL), quartzoseSilt, buff to brown, dense; with orange-brown sandy partingsSand, silty, buff and mustard, micaceous; with iron-cemented sand nodulesSilt, sandy, mustard and brown, (fL-mL), finely laminated, lignitic, micaceous;

with purple, semi-consolidated silt nodulesSilt, sandy, dark gray, (fL), micaceous, lignitic; with top marked by abundant

medium-grained, orange-brown sand laminaeSilt, sandy, dark gray, dense, medium grained, micaceousSand, silty, dark gray, (mL), micaceous; dark gray silt laminae in lower 0.3 ftSand, light gray to multicolored, (mL-mU), micaceous; with clayey lenses near

top, and semi -consolidated siltstone nodules in maroon zonesSand, multicolored, (ml)); with silt lenses, (0.3 ft thick)Sand, light gray, light tan, and orange-brown, (mL-cU), micaceous; coarsening

downward, iron-cemented sandstone nodules, and occasional clay lenses

Depth(ft)

0.8

18.223.7

26.1

43.5

46.948.049.0

64.0

71.874.0

79.0

85.089.0

99.0

99.6

102.7

Depth (ft)

4.07.08.0

9.0

14.017.319.021.523.724.0

33.2

34.037.840.0

49.054.0

64.0

Thickness(ft)

0.8

17.45.5

2.4

17.4

3.41.11.0

15.0

7.82.2

5.0

6.04.0

10.0

0.6

3.1

Thickness (ft)

4.03.01.0

1.0

5.03.31.72.52.20.3

9.2

0.83.82.2

9.05.0

0.0

39

Table 2. Lithologic Logs for well-cluster sites Continued


Sand grade scale


1,410-2,000 vcU1,000-1,410 v

710-1,000 cl500- 710 c!350- 500 ml250- 350 m

:LJ.1

J.»

177- 250 fU125- 177 fL88- 125 vfU62- 88 vfL

Description

SITE 126

Soil, clayey, brown; with rootsSand, clayey, dark brown-orange [10YR 4/6], (fU), moistSilt, orange [10YR 4/6] and gray (5Y 6/1) mottled, hard, dry

Depth(ft)

0.73.34.0

Silt, clayey, green, brown, and orange mottled, (fU); with thin sand lenses 6.1Sand, white, yellow, and orange [10YR 7/8] mottled, dry 9.0

Thickness(ft)

0.72.60.72.12.9

Sand, white to pink, (mL-mU), orange- streaked, micaceous; increasing wetnesswith depth

Sand, light orange [10YR 7/6], (mL-mU), wetSand, orange [10YR 6/8], (mL-mU), micaceous, wetNo sample

13.114.017.519.0

Sand, orange [10YR 6/8], (mL); with thin, gray clayey sand lenses 19.6Sand, gray [2. SYR 4/0], (mL) , lignitic, clayey sand lenses 20.0Sand, clayey, dark gray [2. SYR 3/0], micaceous, lignitic, soft, wet 24.0

Description

SITE 127

Soil zoneSand, silty, orange-brown [7.5 YR 5/8], (mL-mU); moist near base

Depth (ft)

0.77.0

4.10.93.51.50.60.44.0

Thickness (ft)

0.76.3

Sand, pale brown [10YR 7/3] and orange mottled, (mU), well-sorted, subrounded;with large cobbles and sandstone fragments 8.8 1.8

Sand, silty, light gray and orange mottled, (fU-fL), micaceous, lignitic;with gradational color change to mottled pink-gray and pink-orangebottom 1.3 ft

Sand, light red-brown [SYR 6/3], (cU-mU)Silt, sandy, orange and light gray mottled, (fU-fL), micaceousSilt, clayey, and sand, dark gray, (fU-fL), micaceousClay, brown and light gray to mottled pink-gray, red, yellow and

Description

SITE 128

Sand, silty, light olive-brown [2.5Y 5/4], subrounded, quart zoseSand, clayey, yellow-brown [10YR 5/4] (mU), quartzoseSand, brown-yellow [10YR 6/6], (raL-fL), subrounded, quartzose

10.311.513.314.5

dark gray 19 . 0

Depth (ft)

1.62.63.8

1.51.21.81.24.5

Thickness (ft)

1.61.01.2

Sand light gray [10YR 7/1] and brown-yellow [10YR 6/6] mottled, (cL), subangular,quartzose, clean 6.0

Sand, yellow-red [SYR 5/8], (mL-fL), quartzose; with abrupt upper contact 6.2Sand, silty, yellow-red [SYR 5/8] and light gray [10YR 7/1] banded, quartzose 6.8Sand, dark gray [SYR 4/1], (fU), quartzose, micaceous; with abrupt upper contact 11.0

2.20.20.64.2

Clay, silty, light gray [10YR 8/1], red [10R 4/8], and olive-grefen, tight; withabrupt upper boundary, and thin sand lenses 19.0 8.0

40



Sand grade scale


1,410-2,000 vcU1,000-1,410 vcL


Description

SITE 129

Sand, silty, dark yellow-brown [10YR 4/4], (fU), subrounded, quartzoseSand, clayey, brown [7. SYR 4/6], (mU), subroundedSand, yellow-brown [10YR 5/8] to pink-white [7. SYR 8/2], (mL-mU), quartzoseClay, silty, light gray [10YR 7/1], brown-yellow [10YR 6/8], (fU), quartzoseSand, brown-yellow [10YR 6/6], (mL), subangular, quartzoseSand, silty, brown-gray [10Y/R 6/2] and brown [7.5YR 5/6] banded, (fU), quartzoseClay, sandy, dark gray [5Y 3/1], (fU), quartzoseSand, silty, dark gray, (fU-mU), quartzoseSand, dark gray, (ell-veil), rounded, quartzose; with trace feldspar, and organic odorNo sampleClay, sandy, light gray [5Y 6/1], (fU), quartzose; distinct upper contact

Description

SITE 130

Soil zone, dark gray; with fill material containing large rock fragmentsSilt, light orange and white, (fU-fL), hard, drySilt, clayey, red, orange, light gray, and white marbled, (fL-fU); with small

maroon nodules, and thin sand lensesSand, white to light gray, orange-mottled, (fU-fL), micaceous; with sparse

clayey sand lensesClay, sandy, orange, brown, white, and gray marbled, (fL-fU), hard; with patches

of maroon sandSand, light gray-tan, (fL-fU), micaceous, moist; with thin, dark gray clay layersSand, clayey, light pink-tan, orange-stained, (fL-fU), micaceous, ligniticSand, white, yellow, purple, orange banded, (fU-mU), wet; with small sandstone

nodules

Description

SITE 131

Clayey and silty soil zone, dark brown [10YR 3/3]Sand, light brown-gray [10YR 7/1] and orange [10YR 6/8] mottled, (fU-mL);

interbedded with clayey sandNo sampleSand, clayey, and silt, interbedded, orange and gray mottled; with some bandingSilt, clayey, orange [.5YR 5/8], micaceousSand, clayey, dark grayish-brown [7.5 YR 4/0], wetSand, light gray, (mL), clean, micaceousSand, clayey, dark gray, (vfU-mL), micaceous; with some thin, brown laminae

Depth(ft)

1.03.08.59.0

12.013.614.017.019.021.034.0

Depth (ft)

0.73.1

6.3

9.9

22.928.229.3

34.0

Depth (ft)

0.4

1.84.08.29.0

12.312.819.0

Thickness(ft)

1.02.05.50.53.01.60.43.02.02.013.0

Thickness (ft)

0.72.4

3.2

3.6

13.05.31.1

4.7

Thickness (ft)

0.4

1.42.24.20.83.30.56.2

41



Sand grade scale


1,410-2,000 vbU1,000-1,410 v710-1,000 c500- 710 c350- 500 m

cL[)LU

250- 350 ml177- 250 fU125- 177 ft88- 125 vfU62- 88 v

Description

SITE 132

Soil

fL

Depth(ft)

0.1Sand, silty, brown [7. SYR 4/4], (fU) 1.8Sand, yellow [10YR 7/4], (fU-mL), dry; with some iron concretions 8.6Silt, clayey, and sand, light gray to orange, interfingered 14.0Sand, dark gray, (mU-mL) , soupy 15.7Sand, clayey, and gravel, dark gray, interfingered with dark graClay, silty, dark gray, micaceous, soft

Description

SITE 133

f silty clay 16.319.0

Depth (ft)

Soil 0.2Sand and gravel, brownish-orange, (fU-mU); with fill material 4.6Sand, yellow [10YR 7/6], (fU-cL), well-sorted; coarsening downward 24.0No sample 34.0Clay, silty, pinkish-white [2. SYR 6/0]; with small red concretions 40.1Sand, tan [7.5 YR 8/2], (fL-cL), poorly sorted 44.0


SITE 134

Soil, clayey, dark brown, plastic, organic-rich 1.2Silt, clayey, orange-brown, plastic; with some sand 4.3Silt, sandy, gray-orange-mottled 9.0Sand, tan to gray, (fU-cU), clean 11.0Sand, silty, orange to tan; with sand up to (cL) 14.0Clay, silty, dark gray, dense and plastic 25.7Sand and clay, orange-gray to light gray, interfingered 26.6Sand, multicolored, (fU-mL); with large iron concretions 32.2Clay, pinkSand, white multicolored-banded, (fU-mL), wetNo sampleClay, silty, dark gray [SYR 4/1] to reddish-brown [SYR 3/3], lig

with some fine sandSand, light gray, (mL-mll), well-sortedSand, clayey, white to light gray, multicolor-banded, micaceous,

32.639.844.0

litic, hard;51.553.2

hard 62 . 4Clay, sandy, white, hard 62.8Sand, multicolored, (mil), clean, soupy 67.2Sand, clayey, white, purple, and yellow, micaceous 67. 5


SITE 135

Soil, gray-brown [10YR 3/2], organic-rich 0.4Sand, silty and clayey, brown [7. SYR 5/8], (mU) 2.5Clay, sandy, light yellow-brown [10YR5/6], (mL) 3.8Sand, yellow-brown [10YR 6/8], (fU-mU), micaceous 17.7Sand, dark gray [5Y 4/1], (mU) , micaceous 21.3Sand, clayey and silty, dark gray, (fL-fU) 34.0

Thickness(ft)

0.11.76.85.41.70.62.7

Thickness (ft)

0.24.4

19.410.06.13.9

Thickness (ft)

1.23.14.72.03.0

11.70.95.60.47.24.2

7.51.79.20.44.40.3

Thickness (ft)

0.42.11.3

13.93.6

12.7

42



Sand grade scale


1,410-2,0001,000-1,410

710-1,000500- 710350- 500250- 350177- 250125- 17788- 12562- 88

Term


Description Deptn Thickness ______________________________________________________________________(ft)______(ft)

SITE 136

No sample 125.0 125.0Sand, gravelly, multicolor-banded, (mL-cL), soupy 140.5 15.5Clay, silver-gray, micaceous, hard, plastic 145.0 4.5

DescriptionDepthThickness ______________________________________________________________________(ft)______(ft)

SITE 138

Soil, dark brown 0.7 0.7Sand, silty, orange to orange-brown, (mil) 4.0 3.3Sand, buff, (fU-mU), clean 9.3 5.3Sandy silt and clay, orange and gray 19.0 9.7Clay, silty, dark gray; with large lignite fragments 57.5 38.5Silt, clayey, light gray, micaceous; with some sand 62.0 4.5

43

Table 3. Synoptic water-leveX measurements

[ , data not collected]

Local number

CC-1ACC-1BCC-1CCC-1DCC-1E

CC-1FCC-2ACC-2BCC-2CCC-3A

CC-3BCC-4ACC-4BCC-5ACC-5B

CC-5CCC-6ACC-6BCC-6CCC-7A


CC-8DCC-8ECC-9ACC-9BCC-10A

CC-11ACC-11BCC-12A.1CC-12ACC-12B

CC-13ACC-13BCC-14ACC-14BCC-15A

CC-16ACC-16BCC-16CCC-16DCC-17A

CC-17BCC-17CCC-18ACC-18BCC-19A

CC-19BCC-20ACC-20BCC-20CCC-20D

CC-21ACC-22ACC-22BCC-22CCC-23A


Hater levels,

11/18/86

5.015.415.467.357.08

8.471.497.135.073.84

4.234.694.727.424.74

4.775.11

4.80

4.81 4.784.794.81

4.835.88

13.414.823.82

0.082.73

6.406.525.685.555.40

2.552.5210.4810.502.64

2.6910.317.157.16

20.45

5.855.876.396.506.63

2.995.466.336.336.67

5.744.974.945.484.91

in feet above sea level

02/17/87

6.6.6.7.7.

8.1.6.6.3.

4.5.5.

11.5.

5.6.--

5.

5.-

5.5.5.

5.6.

14.12.12.

3!

4.4.

7.7.6.6.6.

3.2.

10.112.

21078

2970906871

7949134670

8344490165

6604--59

61-565358

6310481271

3239-2631

4459505910

9864878980

75703841

25.90

8 147.207.998.478.51

3.227.998.388.389.51

7.476.046.016.415.92

08/25/87

4.125.315.567.247.38

8.321.167.184.553.33

4.564.714.737.864.72

4.755.10

4.81

4.825.154.294.844.84

4.885.9212.994.8811.56

3.223.23

3.903.93

6.346.435.236.285.23

3.222.8710.0910.092.99

2.759.947.087.11

20.85

6.475.666.496.746.78

3.335.466.496.517.11

5.794.894.865.414.75

03/18/88

5.896.436.617.727.84

8.841.817.675.194.01

5.005.405.41

10.605.53

5.565.956.046.186.04

5.555.885.515.525.55

5.606.18

14.275.4512.82

3.563.569.734.304.34

7.417.566.437.516.17

3.672.9310.9110.933.01

2.9410.748.318.34

25.45

7.726.807.627.898.38

3.416.817.957.979.14

7.265.925.896.295.81

44

Table 3. Synoptic water-level measurements Continued


Local number

CC-26CCC-27ACC-27BCC-28ACC-28B

CC-28CCC-29ACC-29BCC-30ACC-31A


CC-35ACC-36ACC-36BCC-36CCC-36D

CC-37ACC-38ACC-39ACC-39BCC-40A

CC-41ACC-42ACC-43ACC-44ACC-101A


CC-104ACC-104BCC-104CCC-106ACC-107A


CC-110ACC-111ACC-111BCC-112ACC-113A

CC-113BCC-114ACC-114BCC-114CCC-115A


CC-120BCC-121ACC-121BCC-122ACC-123A

Water

11/18/86

9.323.624.274.094.11

2.844.703.008.22

0.981.00.11.78.93

-4.07------

12.7012.9012.7412.8112.86

13.5613.7112.969.26--

----

--------

--------

----

---- --

--------

------

levels, in feet

02/17/87

9.714.174.984.764.81

3.675.603.299.34

.69

.70

.65

.29

.76

-3.389.30--

13.5714.7314.5414.6114.59

15.6015.7915.0210.56

----

------

--------

------

---- --

--------

__------

above sea

08/25/87

9.043.494.184.243.96

2.444.663.348.54

1.061.31.97

1.411.12

-3.816.71 --

13.7913.9713.7813.8613.94

14.6414.8213.959.49

--

----

4.17--

----

6.716.17

5.063.003.052.814.54

4.569.014.784.815.03

--

6.626.65

----

level

03/18/88

9.784.184.964.714.76

10.053.455.503.469.46

.79

.86

.69

.67

.73

-3.488.738.507.967.87

14.7614.8214.7214.7914.79

15.7915.9815.2410.357.11

6.776.325.888.399.00

3.625.175.164.988.41

8.438.548.487.877.19

3.983.033.032.675.60

5.5910.895.935.906.16

5.575.577.707.7610.89

10.885.575.58

21.153.83

45

Table 3. Synoptic water-level measurements Continued


Local Water levels, in feet above sea level number ______________________________________

11/18/86 02/17/87 08/25/87 03/18/88

CC-123B 5.76CC-124A 12.59CC-124B 7.34CC-126A 14.29CC-127A 18.71

CC-128A 18.53CC-129A 17.06CC-130A 6.28 7.35CC-130B 12.00 7.26CC-131A 7.70

CC-132A 8.24CC-133A -- 9.64CC-133B -- 9.72CC-134A ~ 3.77CC-134B 3.76

CC-135A 10.56CC-136A 5.14CC-136B 5.14CC-138A -- dry

46

HYDROGRAPHS

(figures 4 through 11)

47

LU

LU

LU COLU

oQQ

LU LU

LU

LU _JC£ LU!<

I I I I I I I I I

Data not available

V1 1 1 1 1 1 1 1

AMJJASONDJFM 1987 1988

Figure 4. Water levels for well 1A, April 1987

through March 1988.

LU

LU

LU CO

oQQ

LU LU

LU

LU

SEP OCT NOV DEC JAN FEB MAR 1987 1988

Figure 5. Water levels for well 1B, September 1987 through March 1988.

48

LU

L±J

L±J CO

oCD

L±J U_

L±J

L±J

I \

I_____I

JUL AUG SEP OCT NOV DEC JAN FEB MAR 1987 1988

Figure 6. Water levels for well 1C, July 1987 through March 1988.

UJ

UJ

UJ COUJ

OCD

UJu_

UJ

UJ_)01 UJ

- - - Data not available

\_____]_____I_____I J____I

JUN JUL AUG SEP OCT NOV DEC JAN FEB MAR 1987 1988

Figure 7. Water levels for well 1D, June 1987 through March 1988.

49

LU

LU

LU COLU

OCD

LU LU U_

LU

LU

LU

I I I I I I I I I I T

- - - Data not available

i i i i i __ i___i___i___i___i___i


Figure 8. Water levels for well 7A, April 1987 through March 1988.

LU

LU

LU COLU

OCD

LU LU

LU

LU

LU

7 i i i i

Data not available

I i I I I T

i i___i___i i i


Figure 9. Water levels for well 8C, April 1987 through March 1988.

50

bJ

bJ

bJ"bJ

O

bJ

bJ 2

bJ

ffi 1

AUG SEP OCT NOV DEC JAN FEB MAR 1987 1988

Figure 10. Water levels for well 16B, August 1987 through March 1988.

LU

10LU 00bJ > O GO

R LU 8LU

LU

LU

LU

AUG SEP OCT NOV DEC JAN FEB MAR 1987 1988

Figure 11. Water levels for well 18B, August 1987 through March 1988.

51 . 53

GEOPHYSICAL LOGS

(figures 12-29)

53

bJ O Q 3 LJ m LJ

LJ Q_

LJ

Q

0 -

40

-

80

-

120

-

160

20

0

SP

ON

TAN

EO

US

P

OTE

NTI

AL

SP

ON

TA

NE

OU

S

PO

TEN

TIA

LR

ES

ISTA

NC

E

Ohm

s

- o

- 40

- so

- 12

0

- 160

20

0

Fig

ure

12. E

lectr

ic

and

g

amm

a lo

gs

fro

m

bo

rin

gs

dri

lle

d

usin

g th

e

mud

ro

tary

m

eth

od

fo

r s

ite

s

1 an

d

2.

Ui

Ui

LU

O 01 ID

Ul

Q 3 LU

CD LU

LU Q_

LU

Q

0

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5.

hydrogeologic data for the canal creek area, …

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