Is Garvin Tap Water Safe? Quality Report

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

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.

health-based violations

197

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	2025-07-01 → 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	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	21.64 µg/L 1.7% of the EPA limit 1300 µg/L worst single sample: 102 µg/L	25/25	SYR4	2013–2017
TTHM	113.551 µg/L 142% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 307.51 µg/L	19/19	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	73.36 µg/L 122% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 134.2 µg/L	19/19	SYR4	2013–2019
Bromodichloromethane	5.77 µg/L No EPA limit set worst single sample: 6.46 µg/L	16/16	SYR4	2013–2019
Chloroform	140.375 µg/L No EPA limit set worst single sample: 302 µg/L	16/16	SYR4	2013–2019
Dichloroacetic Acid	39.55 µg/L No EPA limit set worst single sample: 54.7 µg/L	16/16	SYR4	2013–2019
Trichloroacetic Acid	43.95 µg/L No EPA limit set worst single sample: 79.5 µg/L	16/16	SYR4	2013–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	7/7	LCR	2023
Monochloroacetic Acid	3.195 µg/L No EPA limit set worst single sample: 3.35 µg/L	6/16	SYR4	2013–2019
Lead	0.6011 µg/L 4% of the EPA limit 15 µg/L worst single sample: 0.6040 µg/L	2/25	SYR4	2013–2017
Dibromochloromethane	0.5300 µg/L No EPA limit set	1/16	SYR4	2013–2019
Monobromoacetic Acid	1.3 µg/L No EPA limit set	1/16	SYR4	2013–2019

2 contaminants tested, none detected

BromoformDibromoacetic Acid

Utility contact

Contact: GARVIN

Frequently asked questions about Garvin

Is Garvin tap water safe to drink?

EPA monitoring detected 12 contaminants in Garvin'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 Garvin'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 Garvin serve?

Garvin reports serving 150 people in Oklahoma, per its EPA record.

Has Garvin had any water quality violations?

The EPA has 197 violations on file for Garvin, of which 54 are health-based (a contaminant limit or required treatment was breached) and 1 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.