What was found in Pryor'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-Nitrite | 1400 µg/L 14% of the EPA limit 10000 µg/L Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/5 | SYR4 |
| Chlorite | 969.9 µg/L 97% of the EPA limit 1000 µg/L Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/5 | SYR4 |
| Fluoride | 628 µg/L 16% of the EPA limit 4000 µg/L Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/5 | SYR4 |
| Copper | 613.15 µg/L 47% of the EPA limit 1300 µg/L Main supplier: PRYOR · 8,784 people · 2017 | 5/5 | SYR4 |
| TTHM | 83.135 µg/L 104% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 105.85 µg/L — MAYES CO RWD #4 · 4,183 people · 2019 | 5/5 | SYR4 |
| Chloroform | 48.24 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 80.975 µg/L — MAYES CO RWD #4 · 4,183 people · 2019 | 5/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 64.955 µg/L 108% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 80.63 µg/L — MAYES CO RWD #4 · 4,183 people · 2019 | 5/5 | SYR4 |
| Lead | 52.58 µg/L 351% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2018 | 3/5 | SYR4 |
| Barium | 49 µg/L 2.5% of the EPA limit 2000 µg/L Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2015 | 1/5 | SYR4 |
| Dichloroacetic Acid | 29.225 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 34.48 µg/L — MAYES CO RWD #4 · 4,183 people · 2019 | 5/5 | SYR4 |
| Trichloroacetic Acid | 23.195 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 28.885 µg/L — MAYES CO RWD #4 · 4,183 people · 2019 | 5/5 | SYR4 |
| Bromodichloromethane | 14.26 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 22.42 µg/L — HIGHWAY 69 WATER DIST. (GREER'S SAUSAGE) · 43 people · 2019 | 5/5 | SYR4 |
| Dibromochloromethane | 5.8975 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 10.7 µg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 5/5 | SYR4 |
| Monochloroacetic Acid | 5.275 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 6.2045 µg/L — MAYES CO RWD #4 · 4,183 people · 2019 | 4/5 | SYR4 |
| Gross Beta Particle Activity | 3.76275 pCi/L No EPA limit set Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/5 | SYR4 |
| Dibromoacetic Acid | 2.1595 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 2.72 µg/L — SPORTSMEN ACRES · 218 people · 2019 | 5/5 | SYR4 |
| Bromoform | 1.68 µg/L No EPA limit set Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 3/5 | SYR4 |
| Monobromoacetic Acid | 1.169 µg/L No EPA limit set Main supplier: PRYOR · 8,784 people · 2019
Highest in the city: 1.545 µg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 4/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.6540 pCi/L 4.4% of the EPA limit 15 pCi/L Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/5 | SYR4 |
| Atrazine | 0.4476 µg/L 15% of the EPA limit 3 µg/L Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2019 | 1/5 | SYR4 |
| Pfba | 0.0170 µg/L No EPA limit set Highest in the city: MAYES CO RWD #4 · 4,183 people · 2025 | 1/5 | UCMR-5 |
| PFOS | 0.0057 µg/L No EPA limit set Highest in the city: OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2024 | 1/5 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: PRYOR · 8,784 people · 2023
Highest in the city: 0.0027 mg/L — OKLA ORDNANCE WORKS AUTHORITY · 4,000 people · 2024 | 5/5 | 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 Pryor
| Supplier | Population served |
|---|---|
| PRYOR | 8,784 |
| MAYES CO RWD #4 | 4,183 |
| OKLA ORDNANCE WORKS AUTHORITY | 4,000 |
| SPORTSMEN ACRES | 218 |
| HIGHWAY 69 WATER DIST. (GREER'S SAUSAGE) | 43 |
Frequently asked questions about Pryor tap water
Is Pryor tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Pryor. 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 Pryor?
5 public water suppliers report drinking-water monitoring for Pryor, Oklahoma to the EPA. Each is listed above with its population served.
What contaminants are in Pryor's water?
The contaminants EPA monitoring detected in Pryor include Nitrate-Nitrite, Chlorite, 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.