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PARAMETER
<br />Number of
<br />Analyses
<br />Number of
<br />Non - Detect
<br />Analyses
<br />Maximum
<br />Value
<br />Minimum
<br />Value
<br />Average
<br />Value
<br />Standard
<br />Deviation
<br />Median
<br />Value
<br />Acidity, Total (mg/I as CaCO3)
<br />93
<br />88
<br />26
<br /><10
<br />5
<br />3
<br /><10
<br />Alkalinity, Bicarbonate (mg/I as CaCO3)
<br />76
<br />0
<br />69.4
<br />39.2
<br />50.0
<br />7.1
<br />50.4
<br />Alkalinity, Carbonate (mg/I as CaCO3)
<br />75
<br />0
<br />0
<br />0
<br />0
<br />0
<br />0
<br />Alkalinity, Total (mg/I as CaCO3)
<br />60
<br />0
<br />60
<br />33.3
<br />43
<br />7.5
<br />41
<br />Aluminum, Dissolved (mg/I as Al)
<br />98
<br />73
<br />0.221
<br /><0.1
<br />0.03
<br />0.02
<br /><0.05
<br />Arsenic, Dissolved (mg/I as As)
<br />48
<br />48
<br /><0.005
<br /><0.005
<br />0.0025
<br />ND
<br /><0.005
<br />Arsenic,Total Recoverable in Water as As mg/I
<br />50
<br />50
<br /><0.005
<br /><0.005
<br />0.0025
<br />ND
<br /><0.005
<br />Barium, Dissolved (mg/I as Ba)
<br />7
<br />7
<br /><0.05
<br /><0.05
<br />0.025
<br />ND
<br /><0.05
<br />Cadmium, Dissolved (mg/I as Cd)
<br />98
<br />96
<br />0.0001
<br /><0.005
<br />0.0005
<br />0.0004
<br /><0.001
<br />Calcium, Total (mg/I as Ca)
<br />95
<br />0
<br />253
<br />22
<br />122
<br />60
<br />98
<br />Chloride,Total in Water mg/I
<br />96
<br />1
<br />475
<br /><3
<br />113
<br />106
<br />90.75
<br />Chromium, Dissolved (mg/I as Cr)
<br />98
<br />92
<br />0.003
<br /><0.005
<br />0.001
<br />0.001
<br /><0.001
<br />Copper, Dissolved (mg /I as Cu)
<br />98
<br />93
<br />0.037
<br /><0.005
<br />0.003
<br />0.004
<br /><0.005
<br />Cyanide Free, mg /I
<br />98
<br />93
<br />0.12
<br /><0.1
<br />0.01
<br />0.02
<br /><0.02
<br />Cyanide, Total (mg /I as CN)
<br />98
<br />8
<br />0.57
<br /><0.1
<br />0.2
<br />0.1
<br />0.121
<br />Fluoride, Total (mg/I as F)
<br />97
<br />1
<br />2
<br /><0.5
<br />1.0
<br />0.3
<br />0.993
<br />Hardness, Total (mg /I as CaCO3)
<br />95
<br />0
<br />858
<br />78
<br />433
<br />207
<br />382
<br />Iron, Dissolved (mg /I as Fe)
<br />98
<br />12
<br />0.344
<br /><0.05
<br />0.08
<br />0.06
<br />0.07
<br />Lead, Dissolved (mg /I as Pb)
<br />98
<br />98
<br /><0.001
<br /><0.005
<br />0.001
<br />ND
<br /><0.001
<br />Magnesium, Total (mg /I as Mg)
<br />93
<br />0
<br />55
<br />5.6
<br />31.2
<br />14.9
<br />30.1
<br />Manganese, Dissolved (mg /I as Mn)
<br />98
<br />48
<br />0.482
<br /><0.1
<br />0.05
<br />0.07
<br />0.01
<br />Mercury, Total (mg /I as Hg)
<br />92
<br />87
<br />0.0007
<br /><0.0002
<br />0.0001
<br />0.0001
<br /><0.0002
<br />Molybdenum, Dissolved (mg/I as Mo)
<br />7
<br />6
<br />0.009
<br /><0.01
<br />0.006
<br />0.002
<br /><0.01
<br />Nickel, Dissolved (mg /I as Ni)
<br />98
<br />83
<br />0.009
<br /><0.05
<br />0.004
<br />0.003
<br /><0.005
<br />Nitrate Nitrogen, Total (mg /I as N)
<br />98
<br />0
<br />7.99
<br />0.53
<br />5.14
<br />1.72
<br />5.015
<br />Nitrite Nitrogen, Total (mg /I as N)
<br />96
<br />95
<br />0.05
<br /><0.05
<br />0.025
<br />0.003
<br /><0.05
<br />Nitrite plus Nitrate, mg/I as Nitrogen
<br />50
<br />0
<br />7.99
<br />3.48
<br />6.06
<br />1.23
<br />6.235
<br />Nitrogen, Ammonia, Total (mg/I as N)
<br />97
<br />96
<br />0.092
<br /><0.2
<br />0.04
<br />0.03
<br /><0.05
<br />Oil and Grease Visual (No =0, Yes =1)
<br />37
<br />0
<br />0
<br />0
<br />0
<br />0
<br />0
<br />Oxidation Reduction Potential (mv)
<br />15
<br />0
<br />258
<br />64
<br />198
<br />51
<br />212.4
<br />Oxygen, Dissolved mg/L
<br />90
<br />0
<br />67.4
<br />0.27
<br />7.6
<br />10.1
<br />5
<br />pH, Field, Standard Units
<br />99
<br />0
<br />7.9
<br />5.99
<br />7.3
<br />0.3
<br />7.33
<br />Potassium, Total mg/I as K)
<br />93
<br />0
<br />3.58
<br />0.6
<br />1.5
<br />0.5
<br />1.48
<br />Selenium, Dissolved (mg/I as Se)
<br />97
<br />75
<br />0.012
<br /><0.025
<br />0.004
<br />0.002
<br /><0.005
<br />Silica, Total (mg/I as Si02)
<br />1
<br />0
<br />6.9
<br />6.9
<br />6.9
<br />ND
<br />ND
<br />Silver, Dissolved (mg/I as Ag)
<br />97
<br />95
<br />0.002
<br /><0.005
<br />0.001
<br />0.0004
<br /><0.001
<br />Sodium, Total (mg/I as Na)
<br />93
<br />0
<br />26.4
<br />6.3
<br />16.0
<br />5.3
<br />14.8
<br />Specific Conductance,Field (umhos /cm @ 25C)
<br />97
<br />0
<br />1547
<br />217
<br />903
<br />385
<br />865
<br />Strontium, Total (mg /I as Sr)
<br />3
<br />0
<br />0.09
<br />0.08
<br />0.09
<br />0.01
<br />0.09
<br />Sulfate, Total (mg /I as 504)
<br />96
<br />0
<br />554
<br />28
<br />239
<br />129
<br />200
<br />Temperature, Water (Degrees Centigrade)
<br />99
<br />0
<br />17.7
<br />6.9
<br />10.6
<br />2.5
<br />9.8
<br />Total Dissolved Solids, mg /I
<br />90
<br />0
<br />1442
<br />130
<br />670
<br />353
<br />701.5
<br />Total Suspend Solids, mg /I
<br />95
<br />86
<br />525
<br /><10
<br />16
<br />60
<br /><10
<br />Turbidity,Lab Nephelometric Turbidity Units, NTU
<br />6
<br />0
<br />83
<br />0.9
<br />38
<br />40
<br />37.75
<br />Water Level,Distance From Measuring Point (Feet)
<br />99
<br />0
<br />48.18
<br />24.42
<br />36.29
<br />5.14
<br />35.95
<br />Weak Acid Dissociable Cyanide, mg /I
<br />98
<br />40
<br />0.19
<br /><0.01
<br />0 02
<br />0.03
<br />0 0135
<br />Zinc, Dissolved (mg /I as Zn)
<br />98
<br />82
<br />0.124
<br /><0.05
<br />0.02
<br />0.01
<br /><0.05
<br />TABLE 4-7
<br />SAMPLE LOCATION: WCMW -2
<br />DRAINAGE: WILSON CREEK
<br />PERIOD OF RECORD: 1992 -2011
<br />ND = Not determined. Applicable in two cases: number of analyses = 1; or all analyses are non - detect
<br />Non - detect analyses are set at 1/2 the detection limit for average and standard deviation calculations
<br />Median calculations use the laboratory analyses with less than detection values as negative.
<br />Dissolved arsenic was analyzed since 2002. Total recoverable arsenic was analyzed until 2001. Both forms are provided to indicate the entire analytical history.
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