What was found in Piqua'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 | 4102 µg/L 41% of the EPA limit 10000 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 4078 µg/L 41% of the EPA limit 10000 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Fluoride | 1055.5 µg/L 26% of the EPA limit 4000 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019
Highest in the city: 1523 µg/L — COUNTRY MEADOWS CONDO. · 65 people · 2018 | 2/2 | SYR4 |
| Copper | 110.8 µg/L 8.5% of the EPA limit 1300 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019
Highest in the city: 447.8 µg/L — COUNTRY MEADOWS CONDO. · 65 people · 2019 | 2/2 | SYR4 |
| Barium | 172 µg/L 8.6% of the EPA limit 2000 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| TTHM | 98.68 µg/L 123% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Chloroform | 77.0975 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 35.2675 µg/L 59% of the EPA limit 60 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Lead | 11.7 µg/L 78% of the EPA limit 15 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019
Highest in the city: 30.385 µg/L — COUNTRY MEADOWS CONDO. · 65 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 25.23 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019
Highest in the city: 27.4458 µg/L — COUNTRY MEADOWS CONDO. · 65 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 17.904 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 7.5 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Arsenic | 6.43 µg/L 64% of the EPA limit 10 µg/L Highest in the city: COUNTRY MEADOWS CONDO. · 65 people · 2018 | 1/2 | SYR4 |
| Monochloroacetic Acid | 6.3775 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 6.16 pCi/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 5.727 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.993 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 1/2 | SYR4 |
| Atrazine | 2.322 µg/L 77% of the EPA limit 3 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 2.14 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 1/2 | SYR4 |
| Bromoform | 1.728 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 2/2 | SYR4 |
| Simazine | 1.0695 µg/L 27% of the EPA limit 4 µg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0031 µg/L No EPA limit set Main supplier: PIQUA CITY PWS · 20,354 people · 2025 | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: PIQUA CITY PWS · 20,354 people · 2025
Highest in the city: 0.0023 mg/L — COUNTRY MEADOWS CONDO. · 65 people · 2025 | 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.
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 Piqua
| Supplier | Population served |
|---|---|
| PIQUA CITY PWS | 20,354 |
| COUNTRY MEADOWS CONDO. | 65 |
Frequently asked questions about Piqua tap water
Is Piqua tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Piqua. 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 Piqua?
2 public water suppliers report drinking-water monitoring for Piqua, Ohio to the EPA. Each is listed above with its population served.
What contaminants are in Piqua's water?
The contaminants EPA monitoring detected in Piqua 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.