What was found in ZIP 65401
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 |
|---|---|---|---|
| Fluoride | 985 µg/L 25% of the EPA limit 4000 µg/L Main supplier: ROLLA PWS · 20,800 people · 2018 | 1/1 | SYR4 |
| Barium | 187.4 µg/L 9.4% of the EPA limit 2000 µg/L Main supplier: ROLLA PWS · 20,800 people · 2018 | 1/1 | SYR4 |
| Copper | 178.8 µg/L 14% of the EPA limit 1300 µg/L Main supplier: ROLLA PWS · 20,800 people · 2018 | 1/1 | SYR4 |
| TTHM | 11.85 µg/L 15% of the EPA limit 80 µg/L Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Lead | 7.505 µg/L 50% of the EPA limit 15 µg/L Main supplier: ROLLA PWS · 20,800 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 4.942 µg/L No EPA limit set Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Chloroform | 4.426 µg/L No EPA limit set Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 3.85 µg/L No EPA limit set Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 3.15 µg/L No EPA limit set Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2.1945 µg/L No EPA limit set Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.83 µg/L 1.8% of the EPA limit 100 µg/L Main supplier: ROLLA PWS · 20,800 people · 2018 | 1/1 | SYR4 |
| Arsenic | 1.31 µg/L 13% of the EPA limit 10 µg/L Main supplier: ROLLA PWS · 20,800 people · 2018 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 1.3 pCi/L 26% of the EPA limit 5 pCi/L Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Bromoform | 0.8190 µg/L No EPA limit set Main supplier: ROLLA PWS · 20,800 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0039 mg/L 26% of the EPA limit 0.0150 mg/L Main supplier: ROLLA PWS · 20,800 people · 2024 | 1/1 | 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 65401
| Supplier | State | Population served |
|---|---|---|
| ROLLA PWS | MO | 20,800 |
Frequently asked questions about ZIP 65401 tap water
Is the tap water in ZIP 65401 safe to drink?
EPA testing detected 15 contaminants across the water suppliers serving ZIP 65401. 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 65401?
1 public water supplier report EPA drinking-water monitoring for ZIP 65401. Each is listed above with its population served.
What contaminants are in ZIP 65401's water?
EPA monitoring detected Fluoride, Barium, Copper, TTHM, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.