What was found in Huron'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 | 1530 µg/L 15% of the EPA limit 10000 µg/L Highest in the city: HURON CITY · 6,893 people · 2019 | 1/7 | SYR4 |
| Nitrate-Nitrite | 1525 µg/L 15% of the EPA limit 10000 µg/L Highest in the city: HURON CITY · 6,893 people · 2019 | 1/7 | SYR4 |
| Fluoride | 1060 µg/L 27% of the EPA limit 4000 µg/L Highest in the city: HURON CITY · 6,893 people · 2019 | 1/7 | SYR4 |
| Copper | 146.8 µg/L 11% of the EPA limit 1300 µg/L Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2018
Highest in the city: 377.6 µg/L — ERIE CO HURON EAST DISTRICT · 1,713 people · 2019 | 7/7 | SYR4 |
| TTHM | 85.905 µg/L 107% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019
Highest in the city: 91.38 µg/L — ERIE CO VERMILION W DISTRICT · 54 people · 2019 | 7/7 | SYR4 |
| Chloroform | 58.28 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019
Highest in the city: 68.56 µg/L — ERIE CO VERMILION W DISTRICT · 54 people · 2019 | 7/7 | SYR4 |
| Total Haloacetic Acids (HAA5) | 36.355 µg/L 61% of the EPA limit 60 µg/L Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019
Highest in the city: 41.24 µg/L — ERIE CO VERMILION W DISTRICT · 54 people · 2019 | 7/7 | SYR4 |
| Lead | 17.77 µg/L 118% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2018
Highest in the city: 31.58 µg/L — ERIE CO HURON SOUTH DISTRICT · 1,086 people · 2019 | 7/7 | SYR4 |
| Dichloroacetic Acid | 20.93 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019
Highest in the city: 25.785 µg/L — ERIE CO MARGARETTA DISTRICT · 5,131 people · 2019 | 7/7 | SYR4 |
| Barium | 23 µg/L 1.2% of the EPA limit 2000 µg/L Highest in the city: HURON CITY · 6,893 people · 2019 | 1/7 | SYR4 |
| Trichloroacetic Acid | 17.4 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019
Highest in the city: 19.68 µg/L — ERIE CO HURON SOUTH DISTRICT · 1,086 people · 2019 | 7/7 | SYR4 |
| Bromodichloromethane | 19.5 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019 | 7/7 | SYR4 |
| Dibromochloromethane | 7.765 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019
Highest in the city: 8.04 µg/L — HURON CITY · 6,893 people · 2019 | 7/7 | SYR4 |
| Monochloroacetic Acid | 4.33 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019 | 7/7 | SYR4 |
| Dibromoacetic Acid | 2.3 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019 | 7/7 | SYR4 |
| Bromoform | 0.9000 µg/L No EPA limit set Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2019
Highest in the city: 1.062 µg/L — ERIE CO VERMILION W DISTRICT · 54 people · 2019 | 7/7 | SYR4 |
| Simazine | 0.0800 µg/L 2% of the EPA limit 4 µg/L Highest in the city: HURON CITY · 6,893 people · 2019 | 1/7 | SYR4 |
| Lead | 0.0021 mg/L 14% of the EPA limit 0.0150 mg/L Main supplier: ERIE CO PERKINS DISTRICT · 17,241 people · 2025
Highest in the city: 0.0043 mg/L — HURON CITY · 6,893 people · 2023 | 7/7 | 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 Huron
| Supplier | Population served |
|---|---|
| ERIE CO PERKINS DISTRICT | 17,241 |
| HURON CITY | 6,893 |
| ERIE CO MARGARETTA DISTRICT | 5,131 |
| ERIE CO HURON EAST DISTRICT | 1,713 |
| ERIE CO HURON SOUTH DISTRICT | 1,086 |
| ERIE CO VERMILION DISTRICT | 930 |
| ERIE CO VERMILION W DISTRICT | 54 |
Frequently asked questions about Huron tap water
Is Huron tap water safe to drink?
EPA testing detected 18 contaminants in the water serving Huron. 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 Huron?
7 public water suppliers report drinking-water monitoring for Huron, Ohio to the EPA. Each is listed above with its population served.
What contaminants are in Huron's water?
The contaminants EPA monitoring detected in Huron include Nitrate, Nitrate-Nitrite, Fluoride, Copper, 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.