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.
43
health-based violations
148
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2008-01-01 → 2008-03-31 |
| MCL | Health-based | Resolved | 2008-01-01 → 2008-03-31 |
| MCL | Health-based | Resolved | 2007-10-01 → 2007-12-31 |
| MCL | Health-based | Resolved | 2007-10-01 → 2007-12-31 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-09-30 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-09-30 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-09-30 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-09-30 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-09-30 |
| MCL | Health-based | Resolved | 2007-07-01 → 2007-09-30 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
Other contaminants detected
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 this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate-Nitrite | 1701 µg/L 17% of the EPA limit 10000 µg/L
worst single sample: 4170 µg/L | 280/386 | SYR4 | 2012–2019 |
| TTHM | 77.77 µg/L 97% of the EPA limit 80 µg/L
worst single sample: 86.2 µg/L | 226/248 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 8.389 pCi/L No EPA limit set
worst single sample: 28.8 pCi/L | 219/232 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon And U | 13.57 pCi/L 90% of the EPA limit 15 pCi/L
worst single sample: 21.8 pCi/L | 214/221 | SYR4 | 2012–2019 |
| Combined Uranium | 19.82 µg/L 66% of the EPA limit 30 µg/L
worst single sample: 91.5 µg/L | 197/232 | SYR4 | 2012–2019 |
| Dibromochloromethane | 25.53 µg/L No EPA limit set
worst single sample: 28.8 µg/L | 188/244 | SYR4 | 2012–2019 |
| Chloroform | 20.57 µg/L No EPA limit set
worst single sample: 27.3 µg/L | 187/243 | SYR4 | 2012–2019 |
| Bromoform | 9.9025 µg/L No EPA limit set
worst single sample: 13.5 µg/L | 186/244 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 2.278 pCi/L 46% of the EPA limit 5 pCi/L
worst single sample: 3.5 pCi/L | 185/225 | SYR4 | 2012–2019 |
| Bromodichloromethane | 24.355 µg/L No EPA limit set
worst single sample: 29.1 µg/L | 184/244 | SYR4 | 2012–2019 |
| Copper | 250.1 µg/L 19% of the EPA limit 1300 µg/L
worst single sample: 301 µg/L | 115/120 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 13.02 µg/L 22% of the EPA limit 60 µg/L
worst single sample: 18.95 µg/L | 109/256 | SYR4 | 2012–2019 |
| Arsenic | 7.423 µg/L 74% of the EPA limit 10 µg/L
worst single sample: 29.2 µg/L | 95/176 | SYR4 | 2013–2019 |
| Di(2-ethylhexyl) Phthalate | 2.232 µg/L 37% of the EPA limit 6 µg/L
worst single sample: 5.09 µg/L | 95/238 | SYR4 | 2018–2019 |
| Nitrate | 1790 µg/L 18% of the EPA limit 10000 µg/L
worst single sample: 2420 µg/L | 94/94 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Adipate | 4.0105 µg/L 1% of the EPA limit 400 µg/L
worst single sample: 4.33 µg/L | 92/237 | SYR4 | 2018–2019 |
| Dibromoacetic Acid | 7.666 µg/L No EPA limit set
worst single sample: 9.82 µg/L | 60/200 | SYR4 | 2013–2019 |
| Barium | 581.5 µg/L 29% of the EPA limit 2000 µg/L
worst single sample: 640 µg/L | 54/54 | SYR4 | 2013–2019 |
| Chromium | 32.545 µg/L 33% of the EPA limit 100 µg/L
worst single sample: 40.3 µg/L | 48/54 | SYR4 | 2013–2019 |
| Selenium | 31.395 µg/L 63% of the EPA limit 50 µg/L
worst single sample: 66.2 µg/L | 42/72 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 9.3655 µg/L No EPA limit set
worst single sample: 10.8 µg/L | 38/200 | SYR4 | 2013–2019 |
| Lithium | 20.7 µg/L No EPA limit set | 33/37 | UCMR-5 | 2025 |
| Trichloroacetic Acid | 2.25 µg/L No EPA limit set
worst single sample: 3.16 µg/L | 21/200 | SYR4 | 2013–2019 |
| Lead | 0.00080 mg/L 5.3% of the EPA limit 0.0150 mg/L | 19/19 | LCR | 2025 |
| Nitrite | 11.3 µg/L 1.1% of the EPA limit 1000 µg/L
worst single sample: 11.6 µg/L | 11/57 | SYR4 | 2012–2019 |
| Fluoride | 192 µg/L 4.8% of the EPA limit 4000 µg/L
worst single sample: 200 µg/L | 9/54 | SYR4 | 2013–2019 |
| Lead | 33.09 µg/L 221% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 41.7 µg/L | 7/120 | SYR4 | 2012–2019 |
| Cyanide | 1.93 µg/L 1% of the EPA limit 200 µg/L
worst single sample: 2.08 µg/L | 6/53 | SYR4 | 2013–2019 |
| Antimony, Total | 0.6864 µg/L 11% of the EPA limit 6 µg/L
worst single sample: 0.6970 µg/L | 5/54 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 1.178 µg/L No EPA limit set
worst single sample: 1.19 µg/L | 4/200 | SYR4 | 2013–2019 |
| 1,1-Dichloroethylene | 0.7150 µg/L 10% of the EPA limit 7 µg/L
worst single sample: 0.7200 µg/L | 3/60 | SYR4 | 2012–2019 |
| Bromate | 5.482 µg/L 55% of the EPA limit 10 µg/L
worst single sample: 5.66 µg/L | 2/94 | SYR4 | 2012–2019 |
| Hexachlorocyclopentadiene | 0.2263 µg/L 0.5% of the EPA limit 50 µg/L
worst single sample: 0.2270 µg/L | 2/261 | SYR4 | 2018–2019 |
| 2,4-D | 0.8090 µg/L 1.2% of the EPA limit 70 µg/L | 1/267 | SYR4 | 2012–2019 |
| Glyphosate | 6 µg/L 0.9% of the EPA limit 700 µg/L | 1/265 | SYR4 | 2012–2019 |
| Simazine | 0.7880 µg/L 20% of the EPA limit 4 µg/L | 1/261 | SYR4 | 2018–2019 |
62 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideDichloromethaneDalaponDinosebEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Edmond Pwa
Is Edmond Pwa tap water safe to drink?
EPA monitoring detected 42 contaminants in Edmond Pwa'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 Edmond Pwa's water?
EPA monitoring detected Nitrate-Nitrite, TTHM, Gross Beta Particle Activity, Gross Alpha, Excl. Radon And U, Combined Uranium, and others. The full list with the level and data source for each is above.
How many people does Edmond Pwa serve?
Edmond Pwa reports serving 79,408 people in Oklahoma, per its EPA record.
Has Edmond Pwa had any water quality violations?
The EPA has 148 violations on file for Edmond Pwa, of which 43 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.