Is Yale Tap Water Safe? Quality Report

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

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.

253

health-based violations

428

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2024-10-17
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31
MCL	Health-based	Resolved	2022-01-01 → 2022-03-31

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
Copper	290 µg/L 22% of the EPA limit 1300 µg/L worst single sample: 940 µg/L	161/228	SYR4	2014–2019
TTHM	169.3 µg/L 212% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 195 µg/L	55/55	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	87.435 µg/L 146% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 108 µg/L	52/55	SYR4	2013–2019
Bromodichloromethane	41.82 µg/L No EPA limit set worst single sample: 43.5 µg/L	45/45	SYR4	2013–2019
Chloroform	137 µg/L No EPA limit set worst single sample: 153 µg/L	45/45	SYR4	2013–2019
Dibromochloromethane	19.4 µg/L No EPA limit set worst single sample: 23.4 µg/L	45/45	SYR4	2013–2019
Dichloroacetic Acid	45.3 µg/L No EPA limit set worst single sample: 57.7 µg/L	41/45	SYR4	2013–2019
Trichloroacetic Acid	33.6 µg/L No EPA limit set worst single sample: 44.8 µg/L	41/45	SYR4	2013–2019
Lead	178.8 µg/L 1192% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 229 µg/L	33/228	SYR4	2014–2019
Dibromoacetic Acid	5.36 µg/L No EPA limit set worst single sample: 6.44 µg/L	26/45	SYR4	2013–2019
Lead	0.0067 mg/L 45% of the EPA limit 0.0150 mg/L	21/21	LCR	2025
Bromoform	3.05 µg/L No EPA limit set worst single sample: 4.73 µg/L	17/45	SYR4	2013–2019
Monobromoacetic Acid	1.776 µg/L No EPA limit set worst single sample: 1.8 µg/L	9/45	SYR4	2013–2019
Monochloroacetic Acid	8.883 µg/L No EPA limit set worst single sample: 9.33 µg/L	7/45	SYR4	2013–2019

Utility contact

Contact: YALE
Phone: 918-387-2405
Email: [email protected]

Frequently asked questions about Yale

Is Yale tap water safe to drink?

EPA monitoring detected 14 contaminants in Yale'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 Yale's water?

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

How many people does Yale serve?

Yale reports serving 1,227 people in Oklahoma, per its EPA record.

Has Yale had any water quality violations?

The EPA has 428 violations on file for Yale, of which 253 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.