Well Profile ×
GAF-19R
Designation
Downgradient
Contaminant Status
76
exceedances foundTotal Exceedances / Total Samples
76 / 250 30%
Pollutant Details
NH3
Ammonia
Sb
Antimony
As
Arsenic
Ba
Barium
Be
Beryllium
B
Boron
Cd
Cadmium
Cr
Chromium
Co
Cobalt
Cu
Copper
CN
Cyanide
F
Fluoride
GAP
Gross Alpha
GBP
Gross Beta
Pb
Lead
Mn
Manganese
Hg
Mercury
Mo
Molybdenum
Ni
Nickel
NO3
Nitrate
NO2
Nitrite
Ra
Radium
Se
Selenium
Ag
Silver
Sr
Strontium
SO4
Sulfate
Tl
Thallium
T
Tritium
U
Uranium
Contaminant View ×
Chemical Symbol
Sb
Chemical Name
Antimony
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
0.006 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.001 mg/L
0.167
7/27/10
0.001 mg/L
0.167
10/5/10
0.001 mg/L
0.167
2/1/11
0.001 mg/L
0.167
4/22/11
0.001 mg/L
0.167
7/11/11
0.001 mg/L
0.167
10/12/11
0.001 mg/L
0.167
1/18/12
0.001 mg/L
0.167
4/4/12
0.001 mg/L
0.167
7/24/12
0.001 mg/L
0.167
10/11/12
0.001 mg/L
0.167
1/23/13
0.001 mg/L
0.167
4/16/13
0.001 mg/L
0.167
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
As
Chemical Name
Arsenic
No. Exceedances /
Monitoring Measurements
2 / 13 15%
Health-Based Standard
0.01 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.01 mg/L
1.000
7/27/10
0.01 mg/L
1.000
10/5/10
0.0012 mg/L
0.120
2/1/11
0.01 mg/L
1.000
4/22/11
0.005 mg/L
0.500
7/11/11
0.01 mg/L
1.000
10/12/11
0.001 mg/L
0.100
1/18/12
0.005 mg/L
0.500
4/4/12
0.001 mg/L
0.100
7/24/12
0.0011 mg/L
0.110
10/11/12
0.005 mg/L
0.500
1/23/13
0.135 mg/L
13.500
4/16/13
0.0141 mg/L
1.410
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Ba
Chemical Name
Barium
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
2 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.005 mg/L
0.003
7/27/10
0.056 mg/L
0.028
10/5/10
0.005 mg/L
0.003
2/1/11
0.005 mg/L
0.003
4/22/11
0.0195 mg/L
0.010
7/11/11
0.013 mg/L
0.006
10/12/11
0.023 mg/L
0.011
1/18/12
0.016 mg/L
0.008
4/4/12
0.011 mg/L
0.005
7/24/12
0.1 mg/L
0.050
10/11/12
0.05 mg/L
0.025
1/23/13
0.05 mg/L
0.025
4/16/13
0.025 mg/L
0.013
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Be
Chemical Name
Beryllium
No. Exceedances /
Monitoring Measurements
13 / 13 100%
Health-Based Standard
0.004 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.017 mg/L
4.250
7/27/10
0.017 mg/L
4.250
10/5/10
0.011 mg/L
2.750
2/1/11
0.0125 mg/L
3.125
4/22/11
0.0135 mg/L
3.375
7/11/11
0.015 mg/L
3.750
10/12/11
0.014 mg/L
3.500
1/18/12
0.014 mg/L
3.500
4/4/12
0.012 mg/L
3.000
7/24/12
0.0115 mg/L
2.875
10/11/12
0.014 mg/L
3.500
1/23/13
0.012 mg/L
3.000
4/16/13
0.013 mg/L
3.250
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
B
Chemical Name
Boron
No. Exceedances /
Monitoring Measurements
8 / 11 73%
Health-Based Standard
3 mg/L (CHA)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
4.2 mg/L
1.400
7/27/10
3.15 mg/L
1.050
10/5/10
3 mg/L
1.000
2/1/11
3.45 mg/L
1.150
4/22/11
2.95 mg/L
0.983
7/11/11
3.2 mg/L
1.067
10/12/11
3.3 mg/L
1.100
1/18/12
3.1 mg/L
1.033
10/11/12
3 mg/L
1.000
1/23/13
3.2 mg/L
1.067
4/16/13
3.6 mg/L
1.200
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Cd
Chemical Name
Cadmium
No. Exceedances /
Monitoring Measurements
6 / 13 46%
Health-Based Standard
0.005 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.0054 mg/L
1.080
7/27/10
0.0037 mg/L
0.740
10/5/10
0.0028 mg/L
0.560
2/1/11
0.00365 mg/L
0.730
4/22/11
0.00265 mg/L
0.530
7/11/11
0.0032 mg/L
0.640
10/12/11
0.0046 mg/L
0.920
1/18/12
0.0051 mg/L
1.020
4/4/12
0.00565 mg/L
1.130
7/24/12
0.0068 mg/L
1.360
10/11/12
0.0079 mg/L
1.580
1/23/13
0.00665 mg/L
1.330
4/16/13
0.0049 mg/L
0.980
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Cr
Chemical Name
Chromium
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
0.1 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.02 mg/L
0.200
7/27/10
0.02 mg/L
0.200
10/5/10
0.02 mg/L
0.200
2/1/11
0.02 mg/L
0.200
4/22/11
0.01 mg/L
0.100
7/11/11
0.02 mg/L
0.200
10/12/11
0.02 mg/L
0.200
1/18/12
0.01 mg/L
0.100
4/4/12
0.01 mg/L
0.100
7/24/12
0.001 mg/L
0.010
10/11/12
0.01 mg/L
0.100
1/23/13
0.02 mg/L
0.200
4/16/13
0.002 mg/L
0.020
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Co
Chemical Name
Cobalt
No. Exceedances /
Monitoring Measurements
12 / 13 92%
Health-Based Standard
0.0047 mg/l (RSL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.15 mg/l
31.915
7/27/10
0.125 mg/l
26.596
10/5/10
0.092 mg/l
19.574
2/1/11
0.13 mg/l
27.660
4/22/11
0.125 mg/l
26.596
7/11/11
0.16 mg/l
34.043
10/12/11
0.26 mg/l
55.319
1/18/12
0.25 mg/l
53.191
4/4/12
0.255 mg/l
54.255
7/24/12
0.001 mg/l
0.213
10/11/12
0.32 mg/l
68.085
1/23/13
0.305 mg/l
64.894
4/16/13
0.23 mg/l
48.936
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Cu
Chemical Name
Copper
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
1.3 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.02 mg/L
0.015
7/27/10
0.02 mg/L
0.015
10/5/10
0.02 mg/L
0.015
2/1/11
0.02 mg/L
0.015
4/22/11
0.01 mg/L
0.008
7/11/11
0.02 mg/L
0.015
10/12/11
0.002 mg/L
0.002
1/18/12
0.01 mg/L
0.008
4/4/12
0.015 mg/L
0.012
7/24/12
0.0028 mg/L
0.002
10/11/12
0.02 mg/L
0.015
1/23/13
0.026 mg/L
0.020
4/16/13
0.013 mg/L
0.010
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
F
Chemical Name
Fluoride
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
4 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.59 mg/L
0.147
7/27/10
0.25 mg/L
0.063
10/5/10
0.34 mg/L
0.085
2/1/11
0.1 mg/L
0.025
4/22/11
0.29 mg/L
0.072
7/11/11
0.4 mg/L
0.100
10/12/11
0.47 mg/L
0.117
1/18/12
0.36 mg/L
0.090
4/4/12
0.37 mg/L
0.092
7/24/12
0.38 mg/L
0.095
10/11/12
0.145 mg/L
0.036
1/23/13
0.755 mg/L
0.189
4/16/13
0.28 mg/L
0.070
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Pb
Chemical Name
Lead
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
0.015 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.0038 mg/L
0.253
7/27/10
0.0022 mg/L
0.147
10/5/10
0.0026 mg/L
0.173
2/1/11
0.0021 mg/L
0.140
4/22/11
0.0031 mg/L
0.207
7/11/11
0.0028 mg/L
0.187
10/12/11
0.0012 mg/L
0.080
1/18/12
0.0018 mg/L
0.120
4/4/12
0.002 mg/L
0.133
7/24/12
0.001 mg/L
0.067
10/11/12
0.00185 mg/L
0.123
1/23/13
0.002 mg/L
0.133
4/16/13
0.0025 mg/L
0.167
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Mn
Chemical Name
Manganese
No. Exceedances /
Monitoring Measurements
11 / 11 100%
Health-Based Standard
0.3 mg/L (LHA)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
14 mg/L
46.667
7/27/10
12 mg/L
40.000
10/5/10
11 mg/L
36.667
2/1/11
14 mg/L
46.667
4/22/11
12 mg/L
40.000
7/11/11
15 mg/L
50.000
10/12/11
22 mg/L
73.333
1/18/12
23 mg/L
76.667
10/11/12
33 mg/L
110.000
1/23/13
29 mg/L
96.667
4/16/13
23 mg/L
76.667
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Hg
Chemical Name
Mercury
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
0.002 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.0002 mg/L
0.100
7/27/10
0.0002 mg/L
0.100
10/5/10
0.0002 mg/L
0.100
2/1/11
0.0002 mg/L
0.100
4/22/11
0.0002 mg/L
0.100
7/11/11
0.0002 mg/L
0.100
10/12/11
0.0002 mg/L
0.100
1/18/12
0.0002 mg/L
0.100
4/4/12
0.0002 mg/L
0.100
7/24/12
0.0002 mg/L
0.100
10/11/12
0.0002 mg/L
0.100
1/23/13
0.0002 mg/L
0.100
4/16/13
0.0002 mg/L
0.100
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Mo
Chemical Name
Molybdenum
No. Exceedances /
Monitoring Measurements
0 / 11 0%
Health-Based Standard
0.04 mg/L (LHA)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.005 mg/L
0.125
7/27/10
0.005 mg/L
0.125
10/5/10
0.005 mg/L
0.125
2/1/11
0.05 mg/L
1.250
4/22/11
0.005 mg/L
0.125
7/11/11
0.025 mg/L
0.625
10/12/11
0.025 mg/L
0.625
1/18/12
0.0066 mg/L
0.165
10/11/12
0.05 mg/L
1.250
1/23/13
0.0125 mg/L
0.313
4/16/13
0.005 mg/L
0.125
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Ni
Chemical Name
Nickel
No. Exceedances /
Monitoring Measurements
13 / 13 100%
Health-Based Standard
0.1 mg/L (LHA)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.17 mg/L
1.700
7/27/10
0.16 mg/L
1.600
10/5/10
0.12 mg/L
1.200
2/1/11
0.13 mg/L
1.300
4/22/11
0.14 mg/L
1.400
7/11/11
0.15 mg/L
1.500
10/12/11
0.18 mg/L
1.800
1/18/12
0.18 mg/L
1.800
4/4/12
0.17 mg/L
1.700
7/24/12
0.17 mg/L
1.700
10/11/12
0.19 mg/L
1.900
1/23/13
0.195 mg/L
1.950
4/16/13
0.15 mg/L
1.500
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Se
Chemical Name
Selenium
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
0.05 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.001 mg/L
0.020
7/27/10
0.005 mg/L
0.100
10/5/10
0.001 mg/L
0.020
2/1/11
0.01 mg/L
0.200
4/22/11
0.005 mg/L
0.100
7/11/11
0.01 mg/L
0.200
10/12/11
0.001 mg/L
0.020
1/18/12
0.005 mg/L
0.100
4/4/12
0.001 mg/L
0.020
7/24/12
0.001 mg/L
0.020
10/11/12
0.01 mg/L
0.200
1/23/13
0.01875 mg/L
0.375
4/16/13
0.001 mg/L
0.020
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Ag
Chemical Name
Silver
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
0.1 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.001 mg/L
0.010
7/27/10
0.0167 mg/L
0.167
10/5/10
0.001 mg/L
0.010
2/1/11
0.001 mg/L
0.010
4/22/11
0.001 mg/L
0.010
7/11/11
0.001 mg/L
0.010
10/12/11
0.001 mg/L
0.010
1/18/12
0.001 mg/L
0.010
4/4/12
0.001 mg/L
0.010
7/24/12
0.0005 mg/L
0.005
10/11/12
0.001 mg/L
0.010
1/23/13
0.001 mg/L
0.010
4/16/13
0.001 mg/L
0.010
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Sr
Chemical Name
Strontium
No. Exceedances /
Monitoring Measurements
0 / 11 0%
Health-Based Standard
4 mg/L (LHA)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
1.3 mg/L
0.325
7/27/10
1.35 mg/L
0.338
10/5/10
1.2 mg/L
0.300
2/1/11
1.3 mg/L
0.325
4/22/11
1.25 mg/L
0.313
7/11/11
1.2 mg/L
0.300
10/12/11
1.2 mg/L
0.300
1/18/12
1.2 mg/L
0.300
10/11/12
1.15 mg/L
0.287
1/23/13
1.15 mg/L
0.287
4/16/13
1.2 mg/L
0.300
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Formula
SO4
Chemical Name
Sulfate
No. Exceedances /
Monitoring Measurements
11 / 11 100%
Health-Based Standard
500 mg/L (DWA)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
5000 mg/L
10.000
7/27/10
4500 mg/L
9.000
10/5/10
4000 mg/L
8.000
2/1/11
3600 mg/L
7.200
4/22/11
3350 mg/L
6.700
7/11/11
3200 mg/L
6.400
10/12/11
3200 mg/L
6.400
1/18/12
3300 mg/L
6.600
10/11/12
3850 mg/L
7.700
1/23/13
2950 mg/L
5.900
4/16/13
3100 mg/L
6.200
1Calculated by dividing the sample concentration by the health-based standard.
Contaminant View ×
Chemical Symbol
Tl
Chemical Name
Thallium
No. Exceedances /
Monitoring Measurements
0 / 13 0%
Health-Based Standard
0.002 mg/L (MCL)
Monitoring History
Date
Concentration
Magnitude1
1/20/10
0.001 mg/L
0.500
7/27/10
0.001 mg/L
0.500
10/5/10
0.001 mg/L
0.500
2/1/11
0.001 mg/L
0.500
4/22/11
0.001 mg/L
0.500
7/11/11
0.001 mg/L
0.500
10/12/11
0.001 mg/L
0.500
1/18/12
0.001 mg/L
0.500
4/4/12
0.001 mg/L
0.500
7/24/12
0.001 mg/L
0.500
10/11/12
0.001 mg/L
0.500
1/23/13
0.001 mg/L
0.500
4/16/13
0.001 mg/L
0.500
1Calculated by dividing the sample concentration by the health-based standard.