What was found in Clinton'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 |
|---|---|---|---|
| Copper | 1108 µg/L 85% of the EPA limit 1300 µg/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Fluoride | 814 µg/L 20% of the EPA limit 4000 µg/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2018 | 1/1 | SYR4 |
| Lithium | 67.4 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2023 | 1/1 | UCMR-5 |
| Nitrate | 31.5 µg/L 0.3% of the EPA limit 10000 µg/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Bromoform | 13.125 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| TTHM | 8.9 µg/L 11% of the EPA limit 80 µg/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Lead | 5.65 µg/L 38% of the EPA limit 15 µg/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 5.45 pCi/L 109% of the EPA limit, at the 95th percentile of samples — 5 pCi/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2018 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5 pCi/L 33% of the EPA limit 15 pCi/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2014 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 4.93 µg/L 8.2% of the EPA limit 60 µg/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 4.58 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Chloroform | 4.115 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.675 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 3.3 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.6 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.5 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.6479 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2023 | 1/1 | UCMR-5 |
| Pfpea | 0.0181 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2023 | 1/1 | UCMR-5 |
| PFBS | 0.0117 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2023 | 1/1 | UCMR-5 |
| Pfmpa | 0.0104 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2023 | 1/1 | UCMR-5 |
| Pfmba | 0.0030 µg/L No EPA limit set Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: IOWA-AMERICAN WTR CO-CLINTON DISTRICT · 24,769 people · 2025 | 1/1 | LCR |
Water suppliers serving Clinton
| Supplier | Population served |
|---|---|
| IOWA-AMERICAN WTR CO-CLINTON DISTRICT | 24,769 |
Frequently asked questions about Clinton tap water
Is Clinton tap water safe to drink?
EPA testing detected 22 contaminants in the water serving Clinton. 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 Clinton?
1 public water supplier report drinking-water monitoring for Clinton, Iowa to the EPA. Each is listed above with its population served.
What contaminants are in Clinton's water?
The contaminants EPA monitoring detected in Clinton include Copper, Fluoride, Lithium, Nitrate, Bromoform. 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.