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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 />Standard
<br />Deviation
<br />Median
<br />Value
<br />Acidity, Total (mg/I as CaCO3)
<br />18
<br />16
<br />16
<br /><10
<br />5
<br />3
<br /><10
<br />Alkalinity, Bicarbonate (mg/I as CaCO3)
<br />14
<br />0
<br />70.4
<br />34.4
<br />54
<br />12
<br />59.05
<br />Alkalinity, Carbonate (mg/I as CaCO3)
<br />14
<br />0
<br />0
<br />0
<br />0
<br />0
<br />0
<br />Alkalinity, Total (mg/I as CaCO3)
<br />14
<br />0
<br />120
<br />26
<br />48
<br />23
<br />46.75
<br />Aluminum, Dissolved (mg/I as Al)
<br />24
<br />23
<br />0.133
<br /><0.1
<br />0.04
<br />0.02
<br /><0.05
<br />Arsenic,Total Recoverable in Water as As mg/I
<br />23
<br />15
<br />0.018
<br /><0.005
<br />0.004
<br />0.004
<br /><0.005
<br />Cadmium, Dissolved (mg/I as Cd)
<br />27
<br />26
<br />0.0001
<br /><0.005
<br />0.001
<br />0.001
<br /><0.001
<br />Calcium, Total (mg/I as Ca)
<br />22
<br />0
<br />170
<br />51.7
<br />104
<br />29
<br />107.5
<br />Chloride,Total in Water mg/I
<br />24
<br />0
<br />16.8
<br />4
<br />9.5
<br />3.4
<br />9.25
<br />Chromium,Total Recoverable in Water as Cr mg/I
<br />10
<br />6
<br />0.016
<br /><0.01
<br />0.006
<br />0.005
<br /><0.001
<br />Chromium, Dissolved (mg/I as Cr)
<br />23
<br />23
<br /><0.001
<br /><0.005
<br />0.0015
<br />ND
<br /><0.001
<br />Copper, Dissolved (mg/I as Cu)
<br />26
<br />23
<br />0.009
<br /><0.005
<br />0.003
<br />0.002
<br /><0.005
<br />Cyanide Free, mg/I
<br />38
<br />26
<br />0.31
<br /><0.05
<br />0.04
<br />0.06
<br /><0.01
<br />Cyanide, Total (mg/I as CN)
<br />43
<br />12
<br />0.55
<br /><0.05
<br />0.08
<br />0.12
<br />0.022
<br />Flow, Rate Gallons /Min
<br />53
<br />0
<br />1000
<br />0
<br />32
<br />140
<br />0
<br />Fluoride, Total (mg/I as F)
<br />25
<br />5
<br />1.2
<br /><0.5
<br />0.7
<br />0.3
<br />0.739
<br />Hardness, Total (mg/I as CaCO3)
<br />19
<br />0
<br />580
<br />180
<br />352
<br />98
<br />376
<br />Iron, Dissolved (mg/I as Fe)
<br />25
<br />11
<br />0.38
<br /><0.05
<br />0.08
<br />0.10
<br />0.02
<br />Iron,Total Recoverable in Water as Fe mg/I
<br />19
<br />0
<br />5.92
<br />0.052
<br />0.797
<br />1.34
<br />0.193
<br />Lead, Dissolved (mg/I as Pb)
<br />27
<br />27
<br /><0.001
<br /><0.005
<br />0.001
<br />ND
<br /><0.001
<br />Magnesium, Total (mg/I as Mg)
<br />21
<br />0
<br />39
<br />12.3
<br />25.6
<br />7.5
<br />27
<br />Manganese, Dissolved (mg/I as Mn)
<br />24
<br />4
<br />0.8
<br /><0.05
<br />0.22
<br />0.22
<br />0.115
<br />Mercury, Total (mg/I as Hg)
<br />25
<br />22
<br />0.0007
<br /><0.0002
<br />0.0001
<br />0.0001
<br /><0.0002
<br />Molybdenum, Dissolved (mg/I as Mo)
<br />10
<br />8
<br />• 0.008
<br /><0.01
<br />0.005
<br />0.002
<br /><0.0075
<br />Nickel, Dissolved (mg/I as Ni)
<br />25
<br />22
<br />0.01
<br /><0.05
<br />0.01
<br />0.005
<br /><0.005
<br />Nitrate Nitrogen, Total (mg/I as N)
<br />20
<br />0
<br />13
<br />0.11
<br />4.9
<br />4.2
<br />2.97
<br />Nitrite Nitrogen, Total (mg /I as N)
<br />23
<br />17
<br />5.2
<br /><0.05
<br />0.49
<br />1.31
<br /><0.05
<br />Nitrite plus Nitrate, mg/I as Nitrogen
<br />15
<br />0
<br />11
<br />0.11
<br />4.3
<br />3.6
<br />2.28
<br />Nitrogen, Ammonia, Total (mg/I as N)
<br />24
<br />20
<br />0.4
<br /><0.2
<br />0.1
<br />0.1
<br /><0.05
<br />Oil and Grease Visual (No =0, Yes =1)
<br />2
<br />0
<br />0
<br />0
<br />0
<br />0
<br />0
<br />Oxidation Reduction Potential (my)
<br />5
<br />0
<br />217.8
<br />111
<br />148
<br />43
<br />140.8
<br />Oxygen, Dissolved mg/L
<br />18
<br />0
<br />11.8
<br />4
<br />6.6
<br />1.8
<br />6.7
<br />pH, Field, Standard Units
<br />26
<br />0
<br />7.6
<br />6.4
<br />7.1
<br />0.3
<br />7.15
<br />Potassium, Total mg/I as K)
<br />20
<br />0
<br />7.6
<br />1.78
<br />3.2
<br />1.3
<br />3.01
<br />Selenium, Dissolved (mg/I as Se)
<br />25
<br />25
<br /><0.005
<br /><0.005
<br />0.0025
<br />ND
<br /><0.005
<br />Silica, Total (mg /I as Si02)
<br />3
<br />1
<br />9.1
<br />7.8
<br />8.6
<br />0.7
<br />9
<br />Silver, Dissolved (mg/I as Ag)
<br />27
<br />24
<br />0.0012
<br /><0.001
<br />0.0004
<br />0.0002
<br /><0.001
<br />Sodium, Total (mg/I as Na)
<br />20
<br />0
<br />78
<br />21.5
<br />47.1
<br />13.5
<br />47.5
<br />Specific Conductance,Field (umhos /cm @ 25C)
<br />32
<br />0
<br />1440
<br />150
<br />811
<br />268
<br />857
<br />Strontium, Total (mg/I as Sr)
<br />4
<br />0
<br />0.82
<br />0.54
<br />0.74
<br />0.13
<br />0.795
<br />Sulfate, Total (mg/I as SO4)
<br />36
<br />0
<br />540
<br />55
<br />323
<br />123
<br />300
<br />Temperature, Water (Degrees Centigrade)
<br />27
<br />0
<br />45.1
<br />5
<br />13.3
<br />7.7
<br />12.4
<br />Total Dissolved Solids, mg/I
<br />28
<br />0
<br />1100
<br />253
<br />622
<br />196
<br />606
<br />Total Suspend Solids, mg /I
<br />25
<br />18
<br />138
<br /><10
<br />12
<br />27
<br /><5
<br />Turbidity,Lab Nephelometric Turbidity Units, NTU
<br />9
<br />0
<br />6.2
<br />0.3
<br />2.18
<br />2.21
<br />1
<br />Weak Acid Dissociable Cyanide, mg/I
<br />26
<br />13
<br />0.26
<br /><0.1
<br />0.03
<br />0.06
<br />0.0015
<br />Zinc, Dissolved (mg/I as Zn)
<br />28
<br />14
<br />0.156
<br /><0.05
<br />0.03
<br />0.03
<br />0
<br />TABLE 4 -2
<br />SAMPLE LOCATION: T -2
<br />DRAINAGE: NORTH FORK WILSON CREEK
<br />PERIOD OF RECORD: 1986 -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 chromium was analyzed until 2001 Total recoverable chromium was analyzed in 1986 -1990 and from 2005 Both forms are provided to indicate the entire analytical history.
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