What was found in ZIP 63368
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 7900 µg/L 79% of the EPA limit 10000 µg/L | 2/3 | SYR4 |
| Copper | 1120 µg/L 86% of the EPA limit 1300 µg/L | 3/3 | SYR4 |
| Fluoride | 640 µg/L 16% of the EPA limit 4000 µg/L | 2/3 | SYR4 |
| Barium | 147 µg/L 7.4% of the EPA limit 2000 µg/L | 2/3 | SYR4 |
| TTHM | 82 µg/L 102% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Chloroform | 68.3 µg/L No EPA limit set | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 57.4 µg/L 96% of the EPA limit 60 µg/L | 2/3 | SYR4 |
| Lithium | 47.5 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Dichloroacetic Acid | 37.1 µg/L No EPA limit set | 3/3 | SYR4 |
| Lead | 31.5 µg/L 210% of the EPA limit, in the worst sample — 15 µg/L | 3/3 | SYR4 |
| Trichloroacetic Acid | 24.3 µg/L No EPA limit set | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 15 pCi/L 100% of the EPA limit 15 pCi/L | 1/3 | SYR4 |
| Bromodichloromethane | 13.5 µg/L No EPA limit set | 3/3 | SYR4 |
| Monobromoacetic Acid | 10.4 µg/L No EPA limit set | 3/3 | SYR4 |
| Monochloroacetic Acid | 9.7 µg/L No EPA limit set | 1/3 | SYR4 |
| Dibromochloromethane | 5.03 µg/L No EPA limit set | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 3.3 pCi/L 66% of the EPA limit 5 pCi/L | 1/3 | SYR4 |
| Chromium | 3.01 µg/L 3% of the EPA limit 100 µg/L | 2/3 | SYR4 |
| Dibromoacetic Acid | 2.14 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromoform | 0.7800 µg/L No EPA limit set | 2/3 | SYR4 |
| Atrazine | 0.3300 µg/L 11% of the EPA limit 3 µg/L | 1/3 | SYR4 |
| Pfba | 0.0093 µg/L No EPA limit set | 2/3 | UCMR-5 |
| Lead | 0.0031 mg/L 21% of the EPA limit 0.0150 mg/L | 3/3 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 63368
| Supplier | State | Population served |
|---|---|---|
| ST CHARLES COUNTY PWSD 2 | MO | 100,587 |
| THOMAS HILL PWSD 1 | MO | 11,250 |
| CLARK COUNTY CONS PWSD 1 | MO | 7,140 |
Frequently asked questions about ZIP 63368 tap water
Is the tap water in ZIP 63368 safe to drink?
EPA testing detected 23 contaminants across the water suppliers serving ZIP 63368. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 63368?
3 public water suppliers report EPA drinking-water monitoring for ZIP 63368. Each is listed above with its population served.
What contaminants are in ZIP 63368's water?
EPA monitoring detected Nitrate-Nitrite, Copper, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.