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Water Quality Statistics
Metals (mg/L)
Epa sets standards for a number of chemical compounds that
can affect our health.
| Substance |
MCL |
Hillsboro Water Treatment Plant
|
Aluminum (SMCL) |
50-200 ppb |
8 PPB |
Arsenic |
50 ppb |
1 ppb |
| Barium |
2 ppm |
.12 ppm |
| Nickel (SMCL) |
N/A |
.003 ppm |
| Selenium |
50 ppb |
1 ppb |
| Silica (SMCL) |
50 ppm |
.268 ppm |
Microbiological
Quality
Bacteria and other harmful organisms are removed by physical processes
and
disinfection chemicals. Efficiency of these treatment techniques are monitored
by
microbiological testing (4 times a month) and clarity of the finished
water (turbidity) which is continuously monitored.
| Substance |
MCL |
Hillsboro
Water Treatment Plant |
| Turbidity (NTU's) |
0.30 NTU |
0.05 avg. NTU's |
| Coliform- Distribution System |
One Will Trigger A Violation |
No Presence |
Residual Chlorine-
KDHE requires that cities maintain a chlorine residual in all distribution
systems for disinfection purposes. We test daily, in different areas
of the city to insure proper disinfection. |
Organic Compounds
(Pesticides/Volatile Organic Compounds/Disinfection By Products caused
by runoff from herbicides used on row crops and discharge of petroleum
products.) There are a number of organic compounds that are of concern
in drinking water. This group includes volatile organic compounds
(VOC's); pesticides and herbicides (SOC's)
| Substance |
MCL |
Hillsboro
Water Treatment Plant |
MCLG |
| Xylene |
10 ppm |
4.3 ppm |
10 ppm |
| Atrazine |
3 ppb |
1.1 ppb |
3 ppb |
| Chromium |
100 ppb |
2 ppb |
100 ppb |
| Ethylbenzene |
700 ppb |
.9 ppb |
700 ppb |
Lead and Copper
| Substance |
Detected |
Action Limit |
| Lead |
7.4 ppb |
15 ppb |
| Copper |
.31 ppm |
1.3 ppm |
Caused by corrosion of household
plumbing |
Disinfection By-Products
| Substance |
MCL |
Hillsboro
Water Treatment Plant |
MCLG |
| Total Trihalomethanes |
100 |
116.9 |
0 |
Physical Properties & Inorganic
Compounds
All natural waters contain some dissolved minerals. Quality standards
establish
limits for inorganics to protect public health. Caused by erosion of natural
deposits
| Substance |
MCL |
Hillsboro
Water Treatment Plant |
| Fluoride |
4 ppm |
.37 ppm |
| Nitrate as N |
10 ppm |
.61 ppm |
| pH (SMCL) |
6.5-9.5 |
7.79 pH units |
| Alkalinity (SMCL) |
60-300 ppm |
151.19 ppm |
| Hardness |
400ppm |
280.77 ppm |
| Calcium (SMCL) |
45-200 ppm |
72.52 ppm |
| Magnesium (SMCL) |
50-150 ppm |
24.25 ppm |
| Chloride (SMCL) |
250 ppm |
25.29 ppm |
| Potassium (SMCL) |
100 ppm |
5.38 ppm |
| Sulfate (SMCL) |
250 ppm |
183.81 ppm |
| Total Dissolved Solids (SMCL) |
500 ppm |
427 ppm |
| Total Phosphorus (SMCL) |
5.0 ppm |
.393 ppm |
| Sodium (SMCL) |
100 ppm |
25.4 ppm |
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