Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2024-10-17 |
| TT | Health-based | Resolved | 2024-10-17 |
| MCL | Health-based | Resolved | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2024-01-01 → 2024-03-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-10-01 → 2023-12-31 |
| MCL | Health-based | Resolved | 2023-07-01 → 2023-09-30 |
| MCL | Health-based | Resolved | 2023-07-01 → 2023-09-30 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Copper | 181.7 µg/L 14% of the EPA limit 1300 µg/L
worst single sample: 357 µg/L | 92/120 | SYR4 | 2013–2017 |
| Nitrate-Nitrite | 1082 µg/L 11% of the EPA limit 10000 µg/L
worst single sample: 1310 µg/L | 20/20 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 16/16 | LCR | 2023 |
| TTHM | 28.23 µg/L 35% of the EPA limit 80 µg/L
worst single sample: 40.2 µg/L | 15/24 | SYR4 | 2012–2019 |
| Arsenic | 12.115 µg/L 121% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 15.8 µg/L | 12/12 | SYR4 | 2012–2019 |
| Nitrate | 1310 µg/L 13% of the EPA limit 10000 µg/L | 10/10 | SYR4 | 2012–2019 |
| Bromoform | 5.12 µg/L No EPA limit set
worst single sample: 5.2 µg/L | 9/13 | SYR4 | 2014–2019 |
| Dibromochloromethane | 8.495 µg/L No EPA limit set
worst single sample: 8.6 µg/L | 8/13 | SYR4 | 2014–2019 |
| Total Haloacetic Acids (HAA5) | 11.055 µg/L 18% of the EPA limit 60 µg/L
worst single sample: 12 µg/L | 8/24 | SYR4 | 2012–2019 |
| Lithium | 49.7 µg/L No EPA limit set | 8/8 | UCMR-5 | 2023 |
| Bromodichloromethane | 6 µg/L No EPA limit set
worst single sample: 6.3 µg/L | 7/13 | SYR4 | 2014–2019 |
| Combined Uranium | 95.71 µg/L 319% of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 95.8 µg/L | 7/7 | SYR4 | 2012–2018 |
| Dibromoacetic Acid | 4.73 µg/L No EPA limit set
worst single sample: 5.3 µg/L | 7/12 | SYR4 | 2014–2019 |
| Dichloroacetic Acid | 3.76 µg/L No EPA limit set
worst single sample: 4 µg/L | 7/12 | SYR4 | 2014–2019 |
| Barium | 197.25 µg/L 9.9% of the EPA limit 2000 µg/L
worst single sample: 219 µg/L | 6/6 | SYR4 | 2012–2017 |
| Chromium | 32.05 µg/L 32% of the EPA limit 100 µg/L
worst single sample: 34.6 µg/L | 6/6 | SYR4 | 2012–2017 |
| Gross Alpha, Excl. Radon And U | 46.0825 pCi/L 307% of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 56.81 pCi/L | 6/7 | SYR4 | 2012–2018 |
| Selenium | 20.48 µg/L 41% of the EPA limit 50 µg/L
worst single sample: 21.5 µg/L | 5/6 | SYR4 | 2012–2017 |
| Chloroform | 3.155 µg/L No EPA limit set
worst single sample: 3.2 µg/L | 4/13 | SYR4 | 2014–2019 |
| Fluoride | 488.5 µg/L 12% of the EPA limit 4000 µg/L
worst single sample: 490 µg/L | 4/6 | SYR4 | 2012–2017 |
| Gross Beta Particle Activity | 27.4 pCi/L No EPA limit set
worst single sample: 28.9 pCi/L | 4/7 | SYR4 | 2012–2018 |
| Combined Radium (-226 And -228) | 4.142 pCi/L 83% of the EPA limit 5 pCi/L
worst single sample: 4.38 pCi/L | 3/7 | SYR4 | 2012–2018 |
| Lead | 7.9 µg/L 53% of the EPA limit 15 µg/L | 1/120 | SYR4 | 2013–2017 |
| Monobromoacetic Acid | 1 µg/L No EPA limit set | 1/12 | SYR4 | 2014–2019 |
66 contaminants tested, none detected
Utility contact
Frequently asked questions about Piedmont Municipal Authority
Is Piedmont Municipal Authority tap water safe to drink?
EPA monitoring detected 27 contaminants in Piedmont Municipal Authority's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Piedmont Municipal Authority's water?
EPA monitoring detected Copper, Nitrate-Nitrite, Lead, TTHM, Arsenic, and others. The full list with the level and data source for each is above.
How many people does Piedmont Municipal Authority serve?
Piedmont Municipal Authority reports serving 7,542 people in Oklahoma, per its EPA record.
Has Piedmont Municipal Authority had any water quality violations?
The EPA has 372 violations on file for Piedmont Municipal Authority, of which 125 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
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.