What was found in Perry'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 |
|---|---|---|---|
| Fluoride | 1072 µg/L 27% of the EPA limit 4000 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 1/3 | SYR4 |
| Chlorite | 846.3 µg/L 85% of the EPA limit 1000 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 1/3 | SYR4 |
| Nitrate-Nitrite | 281.5 µg/L 2.8% of the EPA limit 10000 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 1/3 | SYR4 |
| Copper | 278.4 µg/L 21% of the EPA limit 1300 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 3/3 | SYR4 |
| Barium | 223.75 µg/L 11% of the EPA limit 2000 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 1/3 | SYR4 |
| Nitrate | 110 µg/L 1.1% of the EPA limit 10000 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2012 | 1/3 | SYR4 |
| TTHM | 97.83 µg/L 122% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019
Highest in the city: 99.34 µg/L — NOBLE COUNTY RWD #2 · 2,100 people · 2019 | 3/3 | SYR4 |
| Chloroform | 43.66 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 3/3 | SYR4 |
| Lead | 37.4 µg/L 249% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 2/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 31.845 µg/L 53% of the EPA limit 60 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 30.26 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 29.92 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 15.8 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019
Highest in the city: 21.11 µg/L — NOBLE COUNTY RWD #2 · 2,100 people · 2019 | 3/3 | SYR4 |
| Bromoform | 16.31 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019
Highest in the city: 17.395 µg/L — NOBLE CO RWD #1 (LUCIEN) · 335 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 9.074 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 6.918 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019
Highest in the city: 8.2 µg/L — NOBLE CO RWD #1 (LUCIEN) · 335 people · 2019 | 3/3 | SYR4 |
| Monochloroacetic Acid | 4.028 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019
Highest in the city: 5.92 µg/L — NOBLE COUNTY RWD #2 · 2,100 people · 2019 | 2/3 | SYR4 |
| Gross Beta Particle Activity | 3.96 pCi/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2017 | 1/3 | SYR4 |
| Monobromoacetic Acid | 2.4055 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 2/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.36 pCi/L 9.1% of the EPA limit 15 pCi/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2017 | 1/3 | SYR4 |
| Atrazine | 0.7377 µg/L 25% of the EPA limit 3 µg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2019 | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 0.2900 pCi/L 5.8% of the EPA limit 5 pCi/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2017 | 1/3 | SYR4 |
| Pfba | 0.0086 µg/L No EPA limit set Main supplier: PERRY WATER & LIGHT DEPT · 5,230 people · 2024 | 1/3 | UCMR-5 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L Main supplier: PERRY WATER & LIGHT DEPT · 5,230 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 Perry
| Supplier | Population served |
|---|---|
| PERRY WATER & LIGHT DEPT | 5,230 |
| NOBLE COUNTY RWD #2 | 2,100 |
| NOBLE CO RWD #1 (LUCIEN) | 335 |
Frequently asked questions about Perry tap water
Is Perry tap water safe to drink?
EPA testing detected 24 contaminants in the water serving Perry. 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 Perry?
3 public water suppliers report drinking-water monitoring for Perry, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Perry's water?
The contaminants EPA monitoring detected in Perry include Fluoride, Chlorite, Nitrate-Nitrite, 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.