2008-09-17_REVISION - M1980244 ‎(34)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 9/17/2008
• Doc Name: Table C16,GVMW-8A and Table C17, GVMW-8B; Water Chemistry Summarry Statistics
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Media Type: D
• Archive: No

V
Table C16 GVMW-8A Water chemistry summary statistics
•
Station Identification: GVMW 8A
Location: Grassy Valley
Station type: Groundwater
Period of record start: June 12, 1998
Period of record end: October 26, 2007

SFp ? ? 2008
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•
Laboratory Parameters Units Number of analyses Number of -
non-detected values Maxiumum
value Minimum
value Average Standard
deviation
Field Parameters .
Depth to Water R 50 0 162.77 81.04 108.33 18.44
Water Temperature C 49 0 9.7 7.2 8.0 0.6
Conductivity pmhos 49 0 441 190 306 46
pH su 49 0 11.8 6.6 7.3 1.1
Dissolved Oxygen mg/1 45 0 6.50 0.10 1.00 1.50
General Parameters
Total Dissolved Solids m g/1 43 0 245 172 201 12
Acidity mg/l 40 35 10.0 <0 5.5 1.9
Alkalinity as CaCO3 mg/1 26 0 58 48 54 2
Ammonia mg11 44 43 0.06 <0.05 0.03 0.01
Hardness mg/1 44 0 162 90 104 11
Total Suspended Solids mg/1 44 43 11 <10 5 I
Special Parameters
Cyanide, Free mg/1 44 44 <0.01 <0.01 <0.01 ID
WAD Cyanide mg/1 44 44 <0.01 <0.01 <0.01 ID
Major Anions
Bicarbonate ion (as CaCO3) mg/l 19 1 81 <10 65 16
Carbonate ion (as CaCO3) mg/1 19 17 13 <0 5 2
Chloride, Total mg/1 44 .0 14.30 2.00 6.00 2.97
Fluoride, Total m g/1 44 0 3.33 2.01 2.72 0.23
Nitrate, Total mg11 44 2 2.08 <0.05 0.36 0.39
Sulfate, Total mg/1 44 0 107.00 59.70 72.37 8.35
Major Cations
Calcium, Total mgt] 44 0 41.40 28.70 34.24 2.93
Magnesium, Total mgt] 44 0 5.42. 1.13 4.26 0.60
Potassium, Total mg/1 40 0 3.09 0.56 0.86 0.43
Sodium, Total mg/1 40 0 24.00 17.90 19.76 1.29
Trace Metals
Arsenic, Total recoverable mg11 . 20 20 <0.005 <0.005 <0.005 ID
Cadmium, Dissolved m 44 44 <0.001 <0.001 <0.001 ID
Chromium, Total recoverable mg/1 0 0 NA NA NA NA
Copper, Dissolved mg/1 44 43 0.006 <0.005 0.003 0.001
Iron, Dissolved mgt] 44 41 0.08 50.05. 0.03 0.01
Iron, Total recoverable mg/1 20 15 0.37 <0.05 0.06 0.09
Lead, Dissolved mg/1 44 43 0.0010 <0.00 1 0.0005 0.0001
Manganese, Dissolved mg/1 44 2 0.93 <0.05 0.60 0.19
Mercury, Total mg/1 44 44 <9,0002 <0.0002 <0.0002 ID
Nickel, Dissolved mgt] 44 44 <0.005 <0.005 <0.005 ID
Selenium, Dissolved m911 44 44 <0.005 <0.005 <0.005 ID
Silver, Dissolved mg/1 44 44 <0.001 <0.00 I <0.001 ID
Zinc, Dissolved mgt] 44 44 <0.05 <0.05 <0.05 ID
NA: Not analyzed
ID: Insufficient data
Nondetects set to Y, detection limit for calculations