Contaminant |
MCLG (Goal) |
MCL (Limit) |
Average of All Samples |
Maximum of All Samples |
System Wide Range |
Compliance Achieved |
Possible Source |
Inorganics |
|
|
|
|
|
|
|
Barium (ppm) |
2 |
2 |
0.33 |
0.33 |
ND - 0.33 |
Yes |
Erosion of natural deposits |
Fluoride (ppm) |
4 |
4 |
0.62 |
0.75 |
0.41 - 0.75 |
Yes |
Natural deposits; water treatment additive |
Nitrate (ppm) |
10 |
10 |
0.52 |
0.78 |
0.41 - 0.78 |
Yes |
Fertilizer, septic tank leachate |
Secondary Drinking Water Standards |
MCLG (Goal) |
SMCL |
|
*Secondary standards are non-mandatory guidelines established by the EPA to assist utilities in managing drinking water for aesthetic considerations, such as taste, odor, and color. These contaminants are not considered to present a risk to human health at the SMCL |
Chloride (ppm) |
N/A |
250 |
26 |
28 |
23 - 28 |
N/A |
Natural deposits; water treatment additive |
Hardness (ppm) |
N/A |
N/A |
408 |
450 |
360 - 450 |
N/A |
Erosion of natural deposits; leaching |
Iron (ppm) |
N/A |
0.3 |
0.032 |
0.032 |
0.032 (1 sample) |
N/A |
Erosion of natural deposits; leaching |
pH (Standard Units) |
N/A |
6.5 - 8.5 |
7.75 |
7.98 |
7.27 - 7.98 |
N/A |
|
Silver (ppb) |
N/A |
100 |
2.4 |
7.0 |
ND - 7.0 |
N/A |
Naturally present in the environment |
Sodium (ppm) |
N/A |
N/A |
9.4 |
11 |
8.2 - 11 |
N/A |
Erosion of natural deposits; leaching |
Sulfate (ppm) |
N/A |
250 |
48 |
50 |
43 - 50 |
N/A |
Erosion of natural deposits; leaching |
Disinfectant Residual |
MRDLG |
MRDL |
|
|
|
|
|
Chlorine (as Cl2) (ppm) |
4 |
4 |
1.8 |
2.2 |
1.1 - 2.2 |
Yes |
Water additive used to control microbes |
Copper and Lead |
MCLG |
AL |
|
|
|
|
|
Copper (ppm) [2018 Data] |
1.3 |
1.3 |
0.27 |
1.5 |
0.17 ppm is the 90th Percentile
(1 of 8 > AL) |
1.5 |
Corrosion of customer plumbing |
Lead (ppb) [2018 Data] |
0 |
15 |
2.5 |
9.7 |
8.5 ppb is the 90th Percentile
(0 of 8 > AL) |
9.7 |
Corrosion of customer plumbing |
Organic Disinfection By-products |
Total Trihalomethanes (TTHMs) (ppb) |
N/A |
80 |
8.5 |
9.5 |
7.4 - 9.5 |
Yes |
By-product of chlorination treatment |
Haloacetic acids (HAA5) (ppb) |
N/A |
60 |
4.7 |
5.0 |
4.4 - 5.0 |
Yes |
By-product of chlorination treatment |
Microorganisms |
|
|
|
|
|
|
|
E coli |
0 |
1 |
ND |
ND |
ND |
Yes |
Human and animal fecal waste |
Total Coliforms |
N/A |
5.0% |
N/A |
1 Sample |
0 - 1 |
Yes |
Naturally present in the environment |
Radionuclides [2019 Data] |
|
|
Combined Radium -226 & -228 (pCi/L) |
0 |
5 |
N/A |
1.3 |
1 Sample |
Yes |
Erosion of natural deposits |
Combined Uranium (ppb) |
0 |
30 |
N/A |
2.2 ug/L |
1 Sample |
Yes |
Erosion of natural deposits |
Gross Alpha excluding Radon and Uranium (pCi/L) |
0 |
15 |
N/A |
1.1 |
1 Sample |
Yes |
Erosion of natural deposits |