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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 V
<br />Acidity, Total (mg/I as CaCO3)
<br />40
<br />2
<br />78
<br /><10
<br />26
<br />15
<br />21
<br />Alkalinity, Bicarbonate (mg/I as CaCO3)
<br />39
<br />18
<br />50.4
<br /><10
<br />12
<br />9
<br />11
<br />Alkalinity, Carbonate (mg/I as CaCO3)
<br />39
<br />0
<br />0
<br />0
<br />0
<br />0.0
<br />0.0
<br />Alkalinity, Total (mg/I as CaCO3)
<br />40
<br />19
<br />41.3
<br /><10
<br />10
<br />7
<br />9
<br />Aluminum, Dissolved (mg/I as Al)
<br />46
<br />0
<br />18.8
<br />0.235
<br />3.90
<br />3.61
<br />2.5
<br />Aluminum, Potentially Dissolved (mg/I as Al)
<br />119
<br />0
<br />18.8
<br />0.17
<br />4.63
<br />2.90
<br />4
<br />Arsenic,Total Recoverable in Water as As mg /I
<br />40
<br />39
<br />0.025
<br /><0.005
<br />0.003
<br />0.004
<br /><0.005
<br />Bicarbonate (mg/I as HCO3 ion)
<br />40
<br />19
<br />50.4
<br /><10
<br />11
<br />9
<br />10.6
<br />Cadmium, Dissolved (mg/I as Cd)
<br />46
<br />9
<br />0.01
<br /><0.001
<br />0.003
<br />0.002
<br />0.003
<br />Cadmium, Potentially Dissolved (mg/I as Cd)
<br />119
<br />10
<br />2.71
<br /><0.001
<br />0.027
<br />0.248
<br />0.004
<br />Calcium, Total (mg/I as Ca)
<br />112
<br />0
<br />292
<br />125
<br />209
<br />35
<br />211.5
<br />Carbonate (mg/I as CO3 ion)
<br />40
<br />40
<br /><10
<br /><10
<br />5
<br />ND
<br /><10
<br />Chloride,Total in Water mg/I
<br />40
<br />0
<br />220
<br />12.5
<br />75
<br />49
<br />60
<br />Chromium, Dissolved (mg/I as Cr)
<br />40
<br />35
<br />0.004
<br /><0.001
<br />0.001
<br />0.001
<br /><0.001
<br />Chromium,Total Recoverable in Water as Cr mg/I
<br />1
<br />1
<br /><0.001
<br /><0.001
<br />0.0005
<br />ND
<br />ND
<br />Copper, Dissolved (mg/I as Cu)
<br />44
<br />17
<br />0.055
<br /><0.005
<br />0.012
<br />0.012
<br />0.008
<br />Copper, Potentially Dissolved (mg/I as Cu)
<br />66
<br />12
<br />0.055
<br /><0.005
<br />0.015
<br />0.012
<br />0.01
<br />Cyanide Free, mg/I
<br />370
<br />345
<br />0.049
<br /><0.05
<br />0.01
<br />0.01
<br /><0.01
<br />Cyanide, Total (mg/I as CN)
<br />370
<br />8
<br />0.094
<br /><0.01
<br />0.03
<br />0.02
<br />0.029
<br />Flow, Rate Gallons /Min
<br />2144
<br />0
<br />700
<br />0
<br />13.5
<br />50.0
<br />0
<br />Fluoride, Total (mg/I as F)
<br />40
<br />0
<br />12.9
<br />2.54
<br />6.4
<br />2.5
<br />5.6
<br />Hardness, Total (mg/I as CaCO3)
<br />120
<br />0
<br />946
<br />0
<br />702
<br />122
<br />712
<br />Iron, Dissolved (mg/I as Fe)
<br />1
<br />1
<br /><0.05
<br /><0.05
<br />0.025
<br />ND
<br />ND
<br />Iron,Total Recoverable in Water as Fe mg/I
<br />119
<br />76
<br />4.06
<br /><0.05
<br />0.10
<br />0.38
<br /><0.05
<br />Lead, Dissolved (mg/I as Pb)
<br />40
<br />38
<br />0.002
<br /><0.001
<br />0.001
<br />0.0002
<br /><0.001
<br />Lead, Potentially Dissolved (mg/I as Pb)
<br />40
<br />32
<br />0.003
<br /><0.001
<br />0.001
<br />0.001
<br /><0.001
<br />Magnesium, Total (mg/I as Mg)
<br />112
<br />0
<br />64.3
<br />28.2
<br />44.2
<br />7.1
<br />43.45
<br />Manganese, Dissolved (mg/I as Mn)
<br />46
<br />0
<br />5.62
<br />0.096
<br />2.16
<br />1.62
<br />1.85
<br />Manganese, Potentially Dissolved, water mg/I
<br />119
<br />0
<br />5.55
<br />0.087
<br />2.41
<br />1.4
<br />2.2
<br />Mercury, Total (mg/I as Hg)
<br />41
<br />40
<br />0.000006
<br /><0.0002
<br />7.8E -05
<br />2.7E -05
<br /><0.0002
<br />Nickel, Dissolved (mg/I as Ni)
<br />42
<br />3
<br />0.043
<br /><0.005
<br />0.023
<br />0.012
<br />0.0250
<br />Nickel, Potentially Dissolved, water mg/I
<br />66
<br />4
<br />0.064
<br /><0.005
<br />0.025
<br />0.013
<br />0.025
<br />Nitrate Nitrogen, Total (mg/I as N)
<br />67
<br />0
<br />19.5
<br />1.45
<br />13.4
<br />3.6
<br />14.2
<br />Nitrite Nitrogen, Total (mg/I as N)
<br />42
<br />42
<br /><0.05
<br /><0.05
<br />0.025
<br />ND
<br /><0.05
<br />Nitrite plus Nitrate, mg/I as Nitrogen
<br />41
<br />0
<br />19.1
<br />1.45
<br />13.0
<br />3.9
<br />13.6
<br />Nitrogen, Ammonia, Total (mg/I as N)
<br />121
<br />116
<br />0.221
<br /><0.2
<br />0.03
<br />0.02
<br /><0.05
<br />Oil and Grease Visual (No =0, Yes =1)
<br />457
<br />0
<br />0
<br />0
<br />0
<br />0
<br />0
<br />Oxygen, Dissolved mg/L
<br />211
<br />0
<br />12.3
<br />2.4
<br />7.7
<br />1.3
<br />7.9
<br />pH, Field, Standard Units
<br />547
<br />0
<br />7.09
<br />5.23
<br />6.02
<br />0.36
<br />6.06
<br />Potassium, Total mg/I as K)
<br />40
<br />0
<br />10.1
<br />5.26
<br />7.8
<br />1.32
<br />8.06
<br />Selenium, Dissolved (mg/I as Se)
<br />40
<br />34
<br />0.007
<br /><0.005
<br />0.003
<br />0.001
<br /><0.005
<br />Silver, Dissolved (mg/I as Ag)
<br />40
<br />38
<br />0.002
<br /><0.001
<br />0.001
<br />0.0003
<br /><0.001
<br />Sodium, Total (mg/I as Na)
<br />40
<br />0
<br />94.7
<br />26.8
<br />63.6
<br />14.6
<br />65.5
<br />Specific Conductance,Field (umhos /cm @ 25C)
<br />211
<br />0
<br />2350
<br />822
<br />1397
<br />277
<br />1397
<br />Sulfate, Total (mg/I as 504)
<br />40
<br />0
<br />803
<br />471
<br />665
<br />71
<br />666
<br />Temperature, Water (Degrees Centigrade)
<br />548
<br />5
<br />17.4
<br /><0.2
<br />7.3
<br />4.0
<br />7.9
<br />Total Dissolved Solids, mg/I
<br />62
<br />0
<br />1496
<br />884
<br />1246
<br />140
<br />1260
<br />Total Suspend Solids, mg/I
<br />123
<br />86
<br />87
<br /><10
<br />9
<br />9
<br /><10
<br />Weak Acid Dissociable Cyanide, mg /I
<br />370
<br />201
<br />0.068
<br /><0.013
<br />0.012
<br />0.010
<br /><0.01
<br />Zinc, Dissolved (mg/I as Zn)
<br />44
<br />0
<br />0.802
<br />0.05
<br />0.33
<br />0.2
<br />0.32
<br />Zinc, Potentially Dissolved (mg/I as Zn)
<br />119
<br />0
<br />0.802
<br />0.085
<br />0.392
<br />0.169
<br />0.38
<br />Zinc, Total (mg /I as Zn)
<br />115
<br />0
<br />0.914
<br />0.091
<br />0.425
<br />0.186
<br />0.405
<br />TABLE 5 -13
<br />SAMPLE LOCATION: AG -1.5
<br />DRAINAGE: AREQUA GULCH
<br />PERIOD OF RECORD: 1996 -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 from 2002. Both forms are provided to indicate the entire analytical history
<br />Potentially dissolved analyses for Al, Cd, Cu, Pb, Mn, NI, and Zn are included due to the their extensive analytical record Since 2001 all analyses are for the dissolved form.
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