Is Pawnee Co Rwd #4 Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Pawnee

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.

174

health-based violations

231

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2023-01-01 → 2023-03-31
MCL	Health-based	Resolved	2023-01-01 → 2023-03-31
MCL	Health-based	Resolved	2023-01-01 → 2023-03-31
MCL	Health-based	Resolved	2023-01-01 → 2023-03-31
MCL	Health-based	Resolved	2023-01-01 → 2023-03-31
MCL	Health-based	Resolved	2022-07-01 → 2022-09-30
MCL	Health-based	Resolved	2022-07-01 → 2022-09-30
MCL	Health-based	Resolved	2022-07-01 → 2022-09-30
MCL	Health-based	Resolved	2022-07-01 → 2022-09-30
MCL	Health-based	Resolved	2022-07-01 → 2022-09-30

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
TTHM	176 µg/L 220% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 203 µg/L	31/31	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	86.2 µg/L 144% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 103 µg/L	31/31	SYR4	2013–2019
Bromodichloromethane	38.4 µg/L No EPA limit set worst single sample: 39.3 µg/L	26/26	SYR4	2013–2019
Chloroform	143.5 µg/L No EPA limit set worst single sample: 170 µg/L	26/26	SYR4	2013–2019
Dibromochloromethane	23.7 µg/L No EPA limit set worst single sample: 36.8 µg/L	26/26	SYR4	2013–2019
Dichloroacetic Acid	42.475 µg/L No EPA limit set worst single sample: 67.6 µg/L	26/26	SYR4	2013–2019
Trichloroacetic Acid	35.225 µg/L No EPA limit set worst single sample: 41.8 µg/L	26/26	SYR4	2013–2019
Dibromoacetic Acid	4.747 µg/L No EPA limit set worst single sample: 5.58 µg/L	22/26	SYR4	2013–2019
Copper	98.2 µg/L 7.6% of the EPA limit 1300 µg/L worst single sample: 163 µg/L	19/50	SYR4	2014–2019
Bromoform	5.4905 µg/L No EPA limit set worst single sample: 8.4 µg/L	12/26	SYR4	2013–2019
Lead	0.00090 mg/L 6% of the EPA limit 0.0150 mg/L	12/12	LCR	2023
Monobromoacetic Acid	2.3235 µg/L No EPA limit set worst single sample: 2.4 µg/L	10/26	SYR4	2013–2019
Monochloroacetic Acid	11.424 µg/L No EPA limit set worst single sample: 12.2 µg/L	5/26	SYR4	2013–2019

1 contaminants tested, none detected

Lead

Utility contact

Contact: PAWNEE CO RWD #4
Phone: 918-767-2441
Email: [email protected]

Frequently asked questions about Pawnee Co Rwd #4

Is Pawnee Co Rwd #4 tap water safe to drink?

EPA monitoring detected 13 contaminants in Pawnee Co Rwd #4'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 Pawnee Co Rwd #4's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Pawnee Co Rwd #4 serve?

Pawnee Co Rwd #4 reports serving 415 people in Oklahoma, per its EPA record.

Has Pawnee Co Rwd #4 had any water quality violations?

The EPA has 231 violations on file for Pawnee Co Rwd #4, of which 174 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.