water testing and treatment approaches for improving water quality for private wells presented by...
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Water Testing and TreatmentWater Testing and Treatment
Approaches for improving water quality forApproaches for improving water quality for
private wellsprivate wells
Presented byGary Hall, Extension Agent
El Paso County
OverviewOverview
Diagnosing water quality problemsDiagnosing water quality problems Water sampling and interpretationWater sampling and interpretation Water quality standardsWater quality standards Common water quality problemsCommon water quality problems Water quality treatment optionsWater quality treatment options
Alluvial aquifers are shown by dotted white polygonsBedrock aquifers are labeled either Lower Dawson or DenverProposed sample sites are the magenta colored flagsFlags with a colored circle next to them are sites where we can use Gary’s NetworkFlags not near a circle will need to be scouted out
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EL PASO
Denver Aquifer
Lower Dawson Aquifer
Fountain CreekSquirrel Creek
Big Sandy Creek
Black Squirrel Creek
Bracket Creek
Sand CreekEast Fork Sand River
Chico Creek
1 2 3
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5 876
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Example Water Test ReportExample Water Test ReportResultsResults Recommended LimitRecommended Limit
ConductivityConductivity 347347 µmhos/cm (E.C. x 1,000,000)µmhos/cm (E.C. x 1,000,000)
pHpH 7.17.1 6.5 to 8.56.5 to 8.5
mg/lmg/l mg/lmg/l
CalciumCalcium 38.238.2 N/AN/A
MagnesiumMagnesium 10.710.7 N/AN/A
SodiumSodium 29.729.7 2020
PotassiumPotassium 2.62.6 N/AN/A
CarbonateCarbonate <0.1<0.1 N/AN/A
BicarbonateBicarbonate 111111 N/AN/A
ChlorideChloride 25.225.2 250250
SulfateSulfate 77.677.6 250250
Nitrate-NitrogenNitrate-Nitrogen 5.55.5 1010
Total AlkalinityTotal Alkalinity 9191 400400
Total HardnessTotal Hardness 139139 300300
Total Dissolved SolidsTotal Dissolved Solids 295295 500500
IronIronManganeseManganese
< 0.01 0.03< 0.01 0.03 <0.01 0.05<0.01 0.05
COMMENTS:COMMENTS: Sodium exceeds the EPA suggested limit for domestic use.Sodium exceeds the EPA suggested limit for domestic use.
Red-primary standard
Blue-secondary standard
Black – other constituents
Water pHWater pH
Measure of intensity of alkali or acid Measure of intensity of alkali or acid contained in the water. contained in the water.
Pure water is 7.0, Recommend 6.5-8.5Pure water is 7.0, Recommend 6.5-8.5 Lower than 5.0 may cause excessive Lower than 5.0 may cause excessive
corrosion, bitter metallic tastecorrosion, bitter metallic taste Higher than 8.5 means there may be Higher than 8.5 means there may be
lots of sodium bicarbonate in the water, lots of sodium bicarbonate in the water, slippery feel, soda tasteslippery feel, soda taste
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pH
Samples
Water pH
Alluvial aquifers are shown by dotted white polygonsBedrock aquifers are labeled either Lower Dawson or DenverProposed sample sites are the magenta colored flagsFlags with a colored circle next to them are sites where we can use Gary’s NetworkFlags not near a circle will need to be scouted out
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EL PASO
Denver Aquifer
Lower Dawson Aquifer
Fountain CreekSquirrel Creek
Big Sandy Creek
Black Squirrel Creek
Bracket Creek
Sand CreekEast Fork Sand River
Chico Creek
1 2 3
11
4
109
5 876
12
16151413
Thank YouThank You
The following sources can provide more The following sources can provide more information:information:– your local extension office your local extension office
www.coopext.colostate.edu/elpasowww.coopext.colostate.edu/elpaso Gary Hall 636-8934, [email protected] Hall 636-8934, [email protected]
– the CSU water website: the CSU water website: www.csuwater.infowww.csuwater.info