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 A20 SG-06 Water chemistry summary statistics
Station Identification:
Location
Station Type:
Period of Record Start:
Period of Record End:
•
SG-06
Squaw Gulch
Surface Water
August 4, 1998
March 3, 2005
Parameters Units Number of
analytes Number of
nondetected values Maximum
value Minimum
value
Average Standard
deviation
Field Parameters
Flow gpm 1 0 20.00 20.00 20.00 ID
Water Temperature C 5 0 18.5 11.0 13.8 2.9
Conductivity µmhos 5 0' 1875.00 870.00 1247.60 413.18
pH su 5 0 5.5 4.4 4.9 0.4
Dissolved Oxygen mg/l 5 0 15.56 5.50 8.87 4.29
General Parameters
Total Dissolved Solids mg/1 5 0 1754 762 1187 376
Acidity mg/l 4 0 78.0 42.0 57.5 16.0
Alkalinity as CaCO3 mg/l 1 1 <10 <10 5 ID
Ammonia mg/1 5 4 0.94 <0.05 0.21 0.41
Hardness mg/l 5 0 917.00 433.00 625.00 182.53
Total Suspended Solids mg/I 5 5 <10 <10 5.00 ID
Special Parameters
CN, Free mg/l 5 5 <0.01 <0.01 0.01 ID
WAD CN mg/l 5 5 <0.01 <0.01 0.01 ID
Major Anions
Bicarbonate ion (as CaCO3) mg/l 4 4 <10 <10 5 ID
Carbonate ion (as CaCO3) mg/1 4 4 <10 <10 5 ID
Chloride mg/l 5 0 82.00 20.00 39.40 25.61
Fluoride mg/l 5 0 14.50 5.06 8.86 3.48
Nitrate mg/l 5 0 5.10 3.16 3.87 0.73
Sulfate mg/l 5 0 984.00 449.00 659.40 200.67
Major Cations
Calcium mg/1 5 0 230.00 107.00 157.80 44.74
Magnesium mg/l 5 0 83.10 39.40 56.08 18.19
Potassium mg/1 4 0 5.76 3.62 4.47 1.03
Sodium mg/l 4 0 28.50 22.20 24.23 2.89
Trace Metals
Arsenic, (total recoverable) mg/I 5 4 0.022 <0.005 0.006 0.009
Cadmium, (dissolved) mg/1 5 0 0.019 0.004 0.008 0.006
Chromium, (total recoverable mg/l I 1 <0.001 <0.001 0.001 ID
Copper, (dissolved) mg/l 5 0 0.015 0.007 0.011 0.003
Iron, (dissolved) mg/l 5 2 0.42 <0.05 0.12 0.17
Iron, (total recoverable) mg/I 5 3 0.47 <0.05 0.12 0.19
Lead, (dissolved) mg/1 5 3 0.0020 <0.001 0.0009 0.0007
Manganese, (dissolved) mg/1 5 0 14.60 4.92 9.26 3.61
Mercury, (total) mg/1 5 5 <0.0002 <0.0002 0.0001 ID
Nickel, (dissolved) mg/l 5 0 0.18 0.05 0.10 0.05
Selenium, (dissolved) mg/l 5 4 0.0110 <0.005 0.0042 0.0038
Silver, (dissolved) mg/1 5 5 <0.001 <0.001 0.001 ID
Zinc, (dissolved) mg/l 5 0 4.20 0.84 1.74 1.41
NA: Not analyzed
ID: Insufficient data
Nondetects set to % detection limit for calculations
E