What was found in ZIP 63670
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 1940 µg/L 19% of the EPA limit 10000 µg/L Highest in the ZIP: STE GENEVIEVE PWS · 4,999 people · 2019 | 3/4 | SYR4 |
| Copper | 863.25 µg/L 66% of the EPA limit 1300 µg/L Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2018 | 4/4 | SYR4 |
| Fluoride | 215 µg/L 5.4% of the EPA limit 4000 µg/L Highest in the ZIP: STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 2/4 | SYR4 |
| Barium | 163.12 µg/L 8.2% of the EPA limit 2000 µg/L Highest in the ZIP: STE GENEVIEVE PWS · 4,999 people · 2019 | 3/4 | SYR4 |
| TTHM | 70.265 µg/L 88% of the EPA limit 80 µg/L Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 2/4 | SYR4 |
| Chloroform | 59.3 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 2/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 54.9 µg/L 91% of the EPA limit 60 µg/L Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 2/4 | SYR4 |
| Dichloroacetic Acid | 33.435 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 2/4 | SYR4 |
| Dibromochloromethane | 2.75 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019
Highest in the ZIP: 25.16 µg/L — STE GENEVIEVE PWS · 4,999 people · 2019 | 2/4 | SYR4 |
| Trichloroacetic Acid | 19.76 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019 | 2/4 | SYR4 |
| Lithium | 19.4 µg/L No EPA limit set Highest in the ZIP: STE GENEVIEVE PWS · 4,999 people · 2025 | 2/4 | UCMR-5 |
| Bromodichloromethane | 12.865 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019
Highest in the ZIP: 18.32 µg/L — STE GENEVIEVE PWS · 4,999 people · 2019 | 2/4 | SYR4 |
| Lead | 15.66 µg/L 104% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2018 | 4/4 | SYR4 |
| Monobromoacetic Acid | 8.661 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019
Highest in the ZIP: 13.175 µg/L — STE GENEVIEVE PWS · 4,999 people · 2019 | 2/4 | SYR4 |
| Bromoform | 12.82 µg/L No EPA limit set Highest in the ZIP: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Chromium | 8.448 µg/L 8.4% of the EPA limit 100 µg/L Highest in the ZIP: STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 2.055 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2019
Highest in the ZIP: 7.8 µg/L — STE GENEVIEVE PWS · 4,999 people · 2019 | 2/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.3 pCi/L 22% of the EPA limit 15 pCi/L Highest in the ZIP: STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 1/4 | SYR4 |
| Combined Uranium | 1.7582 µg/L 5.9% of the EPA limit 30 µg/L Highest in the ZIP: STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 1/4 | SYR4 |
| Antimony, Total | 1.13 µg/L 19% of the EPA limit 6 µg/L Highest in the ZIP: STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 1/4 | SYR4 |
| Xylenes, Total | 0.5200 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Mercury | 0.3500 µg/L 18% of the EPA limit 2 µg/L Highest in the ZIP: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Pfba | 0.0093 µg/L No EPA limit set Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2025 | 1/4 | UCMR-5 |
| Lead | 0.0031 mg/L 21% of the EPA limit 0.0150 mg/L Main supplier: THOMAS HILL PWSD 1 · 11,250 people · 2024 | 4/4 | 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 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 63670
| Supplier | State | Population served |
|---|---|---|
| THOMAS HILL PWSD 1 | MO | 11,250 |
| STE GENEVIEVE PWS | MO | 4,999 |
| STE GENEVIEVE COUNTY PWSD 1 SC | MO | 3,718 |
| LAKE FOREST ESTATES | MO | 650 |
Frequently asked questions about ZIP 63670 tap water
Is the tap water in ZIP 63670 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 63670. 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 63670?
4 public water suppliers report EPA drinking-water monitoring for ZIP 63670. Each is listed above with its population served.
What contaminants are in ZIP 63670'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.