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 A9 ESPMW-01 Water chemistry summary statistics
Station Identification: ESPMW-1
Location: Arequa Gulch
Station type: Groundwater
Period of Record Start: March 28, 2001
Period of Record End: March 12, 2008
C
Parameters Units Number of
analytes Number of nondetected
values Maximum
value Minimum
value Average Standard
deviation
Field Parameters
Water Level ft bgl 63 0 196.10 26.03 69.87 53.06
Water Temp, C C 54 0 8.5 6.1 7.2 0.5
Conductivity µmhos 54 0 434.00 190.00 293.20 43.00
pH su 54 0 8.3 7.3 7.9 0.2
Dissolved Oxygen mg/l 52 0 10.00 0.10 4.99 2.74
General Parameters
Total Dissolved Solids mg/l 32 0 287 141 182 23
Acidity mg/l 32 32 <10 <10 5.0 ID
Alkalinity as CaCO3 mg/l 24 0 116 104 109 3
Ammonia mg/l 32 29 1.49 <0.05 0.10 0.29
Hardness mg/l 32 0 142 120 131 6
Total Suspended Solids mg/l 32 13 252 <10 37 54
Special Parameters
CN, Free mg/l 42 42 <0.01 <0.01 0.01 ID
WAD CN mg/I 42 42 <0.01 <0.01 0.01 ID
Major Anions
Bicarbonate ion (as CaCO3) mg/l 5 0 131 129 130 1
Carbonate ion (as CaCO3) mg/l 5 5 <10 <0 3 ID
Chloride mg/l 32 2 3.25 <0.5 1.32 0.65
Fluoride mg11 32 0 1.41 1.25 1.32 0.04
Nitrate mg/l 32 29 0.11 <0.05 0.03 0.02
Sulfate mg/l 32 0 47.10 32.00 40.36 3.70
Major Cations .
Calcium mg/l 32 0 40.30 33.70 36.94 1.70
Magnesium mg/1 32 0 11.20 8.42 9.34 0.59
Potassium mg/l 32 0 1.77 0.62 1.08 0.23
Sodium mg/1 31 0 15.50 7.88 10.77 2.26
Trace Metals
Arsenic, (dissolved) mg/1 24 24 <0.005 <0.005 0.003 ID
Cadmium, (dissolved) mg/l 32 32 <0.001 <0.001 0.001 ID
Chromium, (dissolved) mg/1 32 32 <0.001 <0.001 0.001 ID
Copper, (dissolved) mg/l 32 7 0.021 <0.005 0.009 0.005
Iron, (dissolved) mg/l 32 27 0.09 <0.05 0.03 0.02
Lead, (dissolved) mg/l 32 28 0.0010 <0.001 0.0006 0.0002
Manganese, (dissolved) mg/l 32 27 0.10 <0.01 0.03 0.02
Mercury, (dissolved) mg/l 2 2 <0.0002 <0.0002 0.0001 ID
Nickel, (dissolved) mg/l 32 31 0.01 <0.005 0.003 0.001
Selenium, (dissolved) mg/I 32 31 0.0050 <0.005 0.0026 0.0004
Silver, (dissolved) mg/l 32 32 <0.001 <0.001 0.001 ID
Zinc, (dissolved) mg/l 32 4 0.58 <0.05 0.19 0.12
NA: Not analyzed
ID: Insufficient data
Nondetects set to '/ detection limit for calculations
The wide range in observed water levels is due to water level measurements taken after purging the well.
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