2008-04-15_REVISION - M1980244 ‎(318)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 4/15/2008
• Doc Name: VOL II Appendix 2, Attachment A- Main Project Area Hydrologi Monitoring Data Summaries
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Media Type: D
• Archive: No

Table A17 WCMW-03 Water chemistry summary statistics
Station Identification:
Location:
Station type:
Period of Record Start:
Period of Record End:

WCMW-03
Wilson Creek
Groundwater
March 15, 1992
March 11, 2008
Parameters Units Number of
analytes Number of
nondetected values Maximum
value Minimum
value
Average Standard
deviation
Field Parameters
Water Level ft bgl 93 0 79.12 54.10 62.60 3.38
Water Temp, C C 96 4 17.8 1.2 9.1 1.5
Conductivity gmhos 91 0 834.00 226.00 422.26 75.31
pH su 91 0 8.1 6.8 7.7 0.2
Dissolved Oxygen mg/l 77 0 2.80 0.02 0.44 0.45
General Parameters
Total Dissolved Solids mg/I 88 0 346 204 236 20
Acidity mg/l 90 85 16.0 <1 3.7 2.6
Alkalinity as CaC03 mg/l 61 0 240 150 202 11
Ammonia mg/1 95 95 <0.2 <0.05 0.05 ID
Hardness mg/l 91 0 225 160 203 10
Total Suspended Solids mg/1 92 85 250 <5 7 26
Special Parameters
CN, Free mg/1 97 97 <0.1 <0.01 0.01 ID
WAD CN mg/1 97 97 <0.01 <0.005 0.004 ID
Major Anions
Bicarbonate ion (as CaC03) mg/l 72 0 290 180 246 16
Carbonate ion (as CaC03) mg/l 62 62 <10 <5 4 ID
Chloride mg/l 94 34 5.00 <0.5 1.18 0.76
Fluoride mg/1 94 1 1.10 0.08 0.84 0.12
Nitrate mg/1 95 13 0.21 <0.05 0.08 0.03
Sulfate mg/l 96 1 44.00 <10 22.28 5.59
Major Cations
Calcium mg/l 95 0 68.10 49.40 57.77 3.66
Magnesium mg/l 94 0 17.30 13.10 14.50 0.80
Potassium mg/l 93 0 3.30 0.86 1.39 0.27
Sodium mg/l 93 0 21.00 8.23 9.69 1.58
Trace Metals
Arsenic, (dissolved) mg/I 46 46 <0.005 <0.005 0.003 ID
Cadmium, (dissolved) mg/l 97 91 <0.005 <0.0001 0.001 0.001
Chromium, (dissolved) mg/1 97 96 0.005 <0.001 0.001 0.001
Copper, (dissolved) mg/l 97 93 0.011 <0.005 0.003 0.001
Iron, (dissolved) mg/l 96 75 0.35 <0.01 0.02 0.04
Lead, (dissolved) mg/I 97 95 <0.005 <0.001 0.0013 0.0010
Manganese, (dissolved) mg/l 96 41 0.26 <0.01 0.03 0.03
Mercury, (dissolved) mg/1 24 23 <0.0002 <0.0001 0.0001 0.00002
Nickel, (dissolved) mg/l 96 95 <0.05 <0.001 0.01 0.005
Selenium, (dissolved) mg/l 95 91 <0.01 <0.005 0.0027 0.0009
Silver, (dissolved) mg/1 97 94 0.07 <0.0001 0.001 0.01
Zinc, (dissolved) mg/l 97 71 <0.05 <0.005 0.02 0.01
NA: Not analyzed
ID: Insufficient data
Nondetects set to %z detection limit for calculations