Is Oakland Pwa Tap Water Safe? Quality Report

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

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.

160

health-based violations

195

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30

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	121.125 µg/L 151% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 170.8 µg/L	56/56	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	72.15 µg/L 120% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 90.5 µg/L	56/56	SYR4	2013–2019
Bromodichloromethane	20.53 µg/L No EPA limit set worst single sample: 26.3 µg/L	50/50	SYR4	2013–2019
Chloroform	102.68 µg/L No EPA limit set worst single sample: 147 µg/L	50/50	SYR4	2013–2019
Dichloroacetic Acid	36.48 µg/L No EPA limit set worst single sample: 49.6 µg/L	49/50	SYR4	2013–2019
Trichloroacetic Acid	37.68 µg/L No EPA limit set worst single sample: 50.4 µg/L	49/50	SYR4	2013–2019
Dibromochloromethane	5.3185 µg/L No EPA limit set worst single sample: 6.55 µg/L	48/50	SYR4	2013–2019
Copper	320 µg/L 25% of the EPA limit 1300 µg/L worst single sample: 504 µg/L	45/50	SYR4	2013–2017
Monochloroacetic Acid	5.105 µg/L No EPA limit set worst single sample: 5.51 µg/L	19/50	SYR4	2013–2019
Lead	0.0015 mg/L 10% of the EPA limit 0.0150 mg/L	7/7	LCR	2023
Dibromoacetic Acid	2.724 µg/L No EPA limit set worst single sample: 2.74 µg/L	5/50	SYR4	2013–2019
Lead	7.102 µg/L 47% of the EPA limit 15 µg/L worst single sample: 7.9 µg/L	5/50	SYR4	2013–2017
Monobromoacetic Acid	1.534 µg/L No EPA limit set worst single sample: 1.54 µg/L	3/50	SYR4	2013–2019
Bromoform	1.01 µg/L No EPA limit set	1/50	SYR4	2013–2019

Utility contact

Contact: OAKLAND PUBLIC WORKS AUTHORITY
Phone: 580-795-3467
Email: [email protected]

Frequently asked questions about Oakland Pwa

Is Oakland Pwa tap water safe to drink?

EPA monitoring detected 14 contaminants in Oakland 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 Oakland Pwa's water?

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

How many people does Oakland Pwa serve?

Oakland Pwa reports serving 1,050 people in Oklahoma, per its EPA record.

Has Oakland Pwa had any water quality violations?

The EPA has 195 violations on file for Oakland Pwa, of which 160 are health-based (a contaminant limit or required treatment was breached) and 2 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.