What was found in ZIP 45123
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 | 1785 µg/L 18% of the EPA limit 10000 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 3800 µg/L — GREENFIELD VILLAGE PWS · 4,600 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 1515 µg/L 15% of the EPA limit 10000 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 3560 µg/L — GREENFIELD VILLAGE PWS · 4,600 people · 2019 | 3/3 | SYR4 |
| Fluoride | 1077.5 µg/L 27% of the EPA limit 4000 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 1084 µg/L — HIGHLAND COUNTY WATER COMPANY, INC. · 28,421 people · 2018 | 3/3 | SYR4 |
| Copper | 898.5 µg/L 69% of the EPA limit 1300 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019 | 3/3 | SYR4 |
| Barium | 47.4 µg/L 2.4% of the EPA limit 2000 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 98.12 µg/L — HIGHLAND COUNTY WATER COMPANY, INC. · 28,421 people · 2018 | 3/3 | SYR4 |
| TTHM | 35.765 µg/L 45% of the EPA limit 80 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019 | 3/3 | SYR4 |
| Chloroform | 13.24 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 15.29 µg/L — GREENFIELD VILLAGE PWS · 4,600 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 12.525 µg/L 21% of the EPA limit 60 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 15.24 µg/L — GREENFIELD VILLAGE PWS · 4,600 people · 2019 | 3/3 | SYR4 |
| Lead | 5.6 µg/L 37% of the EPA limit 15 µg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 13.56 µg/L — HIGHLAND COUNTY WATER COMPANY, INC. · 28,421 people · 2018 | 3/3 | SYR4 |
| Bromodichloromethane | 12.73 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 8.515 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 6.105 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 7.86 µg/L — GREENFIELD VILLAGE PWS · 4,600 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 3 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019
Highest in the ZIP: 5.175 µg/L — GREENFIELD VILLAGE PWS · 4,600 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 2.59 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019 | 3/3 | SYR4 |
| Bromoform | 1.6 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2019 | 3/3 | SYR4 |
| Pfpea | 0.0031 µg/L No EPA limit set Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2025 | 1/3 | UCMR-5 |
| Lead | 0.0018 mg/L 12% of the EPA limit 0.0150 mg/L Main supplier: ROSS COUNTY WATER CO INC · 35,345 people · 2025 | 3/3 | 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 45123
| Supplier | State | Population served |
|---|---|---|
| ROSS COUNTY WATER CO INC | OH | 35,345 |
| HIGHLAND COUNTY WATER COMPANY, INC. | OH | 28,421 |
| GREENFIELD VILLAGE PWS | OH | 4,600 |
Frequently asked questions about ZIP 45123 tap water
Is the tap water in ZIP 45123 safe to drink?
EPA testing detected 17 contaminants across the water suppliers serving ZIP 45123. 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 45123?
3 public water suppliers report EPA drinking-water monitoring for ZIP 45123. Each is listed above with its population served.
What contaminants are in ZIP 45123's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.