What was found in Miamisburg'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 | 1200 µg/L 12% of the EPA limit 10000 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 2/3 | SYR4 |
| Nitrate-Nitrite | 1070 µg/L 11% of the EPA limit 10000 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2012 | 2/3 | SYR4 |
| Fluoride | 958 µg/L 24% of the EPA limit 4000 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2018 | 3/3 | SYR4 |
| Copper | 297 µg/L 23% of the EPA limit 1300 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 3/3 | SYR4 |
| Barium | 146.4 µg/L 7.3% of the EPA limit 2000 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2018 | 3/3 | SYR4 |
| TTHM | 21.588 µg/L 27% of the EPA limit 80 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 27.57 µg/L — JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 3/3 | SYR4 |
| Lead | 7.495 µg/L 50% of the EPA limit 15 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 23.175 µg/L — QUARRY LAKES MHP LLC · 141 people · 2019 | 3/3 | SYR4 |
| Tetrachloroethylene | 12.725 µg/L 255% of the EPA limit, at the 95th percentile of samples — 5 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 1/3 | SYR4 |
| Monochloroacetic Acid | 11.1773 µg/L No EPA limit set Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 1/3 | SYR4 |
| Bromodichloromethane | 6.57 µg/L No EPA limit set Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 9.472 µg/L — JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 7.13 µg/L No EPA limit set Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 8.435 µg/L — JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.7195 µg/L 9.5% of the EPA limit 60 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 6.8124 µg/L — JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 2/3 | SYR4 |
| Chloroform | 3.932 µg/L No EPA limit set Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 6.1135 µg/L — JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 3.57975 µg/L No EPA limit set Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 2/3 | SYR4 |
| Bromoform | 2.94 µg/L No EPA limit set Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 1.7634 µg/L No EPA limit set Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 2.81835 µg/L — JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 2/3 | SYR4 |
| Xylenes, Total | 1.74 µg/L 0% of the EPA limit 10000 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019
Highest in the city: 1.91 µg/L — JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 2/3 | SYR4 |
| Trichloroacetic Acid | 1.4619 µg/L No EPA limit set Highest in the city: JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2019 | 1/3 | SYR4 |
| 1,1,1-Trichloroethane | 0.6985 µg/L 0.3% of the EPA limit 200 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 1/3 | SYR4 |
| Trichloroethylene | 0.6055 µg/L 12% of the EPA limit 5 µg/L Main supplier: MIAMISBURG CITY PWS · 19,790 people · 2019 | 1/3 | SYR4 |
| Pfpea | 0.0069 µg/L No EPA limit set Highest in the city: JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2023 | 1/3 | UCMR-5 |
| Pfba | 0.0062 µg/L No EPA limit set Highest in the city: JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2023 | 1/3 | UCMR-5 |
| Pfhxa | 0.0038 µg/L No EPA limit set Highest in the city: JEFFERSON REGIONAL WATER AUTHORITY · 4,813 people · 2023 | 1/3 | UCMR-5 |
| Lead | 0.0019 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: MIAMISBURG CITY PWS · 19,790 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.
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 Miamisburg
| Supplier | Population served |
|---|---|
| MIAMISBURG CITY PWS | 19,790 |
| JEFFERSON REGIONAL WATER AUTHORITY | 4,813 |
| QUARRY LAKES MHP LLC | 141 |
Frequently asked questions about Miamisburg tap water
Is Miamisburg tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Miamisburg. 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 Miamisburg?
3 public water suppliers report drinking-water monitoring for Miamisburg, Ohio to the EPA. Each is listed above with its population served.
What contaminants are in Miamisburg's water?
The contaminants EPA monitoring detected in Miamisburg include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Barium. 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.