What was found in Ste. Genevieve's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 1940 µg/L 19% of the EPA limit 10000 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 4/4 | SYR4 |
| Fluoride | 155.5 µg/L 3.9% of the EPA limit 4000 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019
Highest in the city: 215 µg/L — STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 3/4 | SYR4 |
| Copper | 47.499999999999986 µg/L 3.7% of the EPA limit 1300 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019
Highest in the city: 174.09999999999997 µg/L — STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 4/4 | SYR4 |
| Barium | 163.11999999999995 µg/L 8.2% of the EPA limit 2000 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 4/4 | SYR4 |
| TTHM | 65.255 µg/L 82% of the EPA limit 80 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 25.159999999999997 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 19.74 µg/L 33% of the EPA limit 60 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Lithium | 19.4 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2025 | 2/4 | UCMR-5 |
| Bromodichloromethane | 18.31999999999999 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Monobromoacetic Acid | 13.175 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Bromoform | 12.819999999999999 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Chloroform | 8.599999999999996 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Chromium | 7.0489999999999995 µg/L 7% of the EPA limit 100 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019
Highest in the city: 8.447999999999999 µg/L — STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 4/4 | SYR4 |
| Lead | 8.343999999999992 µg/L 56% of the EPA limit 15 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 4/4 | SYR4 |
| Dibromoacetic Acid | 7.8 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 6.8705 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 3.3 pCi/L 22% of the EPA limit 15 pCi/L Highest in the city: STE GENEVIEVE COUNTY PWSD 1 SC · 3,718 people · 2019 | 1/4 | SYR4 |
| Trichloroacetic Acid | 2.285 µg/L No EPA limit set Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Combined Uranium | 1.7582 µg/L 5.9% of the EPA limit 30 µg/L Highest in the city: 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 city: 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 Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Mercury | 0.3500 µg/L 18% of the EPA limit 2 µg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: STE GENEVIEVE PWS · 4,999 people · 2024
Highest in the city: 0.0025 mg/L — LAKE FOREST ESTATES · 650 people · 2023 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Ste. Genevieve
| Supplier | Population served |
|---|---|
| STE GENEVIEVE PWS | 4,999 |
| STE GENEVIEVE COUNTY PWSD 1 SC | 3,718 |
| STE GENEVIEVE COUNTY PWSD 1 NORTH | 1,287 |
| LAKE FOREST ESTATES | 650 |
Frequently asked questions about Ste. Genevieve tap water
Is Ste. Genevieve tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Ste. Genevieve. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Ste. Genevieve?
4 public water suppliers report drinking-water monitoring for Ste. Genevieve, Missouri to the EPA. Each is listed above with its population served.
What contaminants are in Ste. Genevieve's water?
The contaminants EPA monitoring detected in Ste. Genevieve include Nitrate-Nitrite, Fluoride, Copper, Barium, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.