What was found in ZIP 45231
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 | 1390 µg/L 14% of the EPA limit 10000 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 1390 µg/L 14% of the EPA limit 10000 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Fluoride | 965 µg/L 24% of the EPA limit 4000 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 1072 µg/L — WYOMING CITY PWS · 9,700 people · 2018 | 2/2 | SYR4 |
| Copper | 43.515 µg/L 3.3% of the EPA limit 1300 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 152.5 µg/L — WYOMING CITY PWS · 9,700 people · 2019 | 2/2 | SYR4 |
| TTHM | 61.41 µg/L 77% of the EPA limit 80 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 67.66 µg/L — WYOMING CITY PWS · 9,700 people · 2019 | 2/2 | SYR4 |
| Barium | 40.5 µg/L 2% of the EPA limit 2000 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 56.96 µg/L — WYOMING CITY PWS · 9,700 people · 2018 | 2/2 | SYR4 |
| Bromoform | 21.29 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019
Highest in the ZIP: 25.27 µg/L — WYOMING CITY PWS · 9,700 people · 2019 | 2/2 | SYR4 |
| Chloroform | 24.1 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 21.4 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Lead | 21.12 µg/L 141% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 16.31 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 13.9 µg/L 23% of the EPA limit 60 µg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Lithium | 11.1 µg/L No EPA limit set Highest in the ZIP: WYOMING CITY PWS · 9,700 people · 2025 | 1/2 | UCMR-5 |
| Xylenes, Total | 8.5 µg/L 0.1% of the EPA limit 10000 µg/L Highest in the ZIP: WYOMING CITY PWS · 9,700 people · 2019 | 1/2 | SYR4 |
| Arsenic | 7.365 µg/L 74% of the EPA limit 10 µg/L Highest in the ZIP: WYOMING CITY PWS · 9,700 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 6.6835 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 6.2895 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 2/2 | SYR4 |
| Monobromoacetic Acid | 5.354 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 3.326 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 3.282 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2019 | 1/2 | SYR4 |
| Ethylbenzene | 1.32 µg/L 0.2% of the EPA limit 700 µg/L Highest in the ZIP: WYOMING CITY PWS · 9,700 people · 2019 | 1/2 | SYR4 |
| Trichloroethylene | 0.6900 µg/L 14% of the EPA limit 5 µg/L Highest in the ZIP: WYOMING CITY PWS · 9,700 people · 2019 | 1/2 | SYR4 |
| PFOS | 0.0061 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2024 | 1/2 | UCMR-5 |
| Pfba | 0.0052 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2024 | 1/2 | UCMR-5 |
| PFBS | 0.0041 µg/L No EPA limit set Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2024 | 1/2 | UCMR-5 |
| Lead | 0.0021 mg/L 14% of the EPA limit 0.0150 mg/L Main supplier: CINCINNATI PUBLIC WATER SYSTEM · 750,200 people · 2026 | 2/2 | 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 45231
| Supplier | State | Population served |
|---|---|---|
| CINCINNATI PUBLIC WATER SYSTEM | OH | 750,200 |
| WYOMING CITY PWS | OH | 9,700 |
Frequently asked questions about ZIP 45231 tap water
Is the tap water in ZIP 45231 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 45231. 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 45231?
2 public water suppliers report EPA drinking-water monitoring for ZIP 45231. Each is listed above with its population served.
What contaminants are in ZIP 45231's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.