Is Walnut Ridge Waterworks Tap Water Safe? Quality Report

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

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

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2019-10-01 → 2019-12-31
MCL	Health-based	Resolved	2019-10-01 → 2019-12-31
MCL	Health-based	Resolved	2019-10-01 → 2019-12-31
MCL	Health-based	Resolved	2019-10-01 → 2019-12-31
MCL	Health-based	Resolved	2019-10-01 → 2019-12-31
MCL	Health-based	Resolved	2019-10-01 → 2019-12-31
MCL	Health-based	Archived	1991-08-01 → 1991-08-31
MCL	Health-based	Archived	1991-08-01 → 1991-08-31
MCL	Health-based	Archived	1991-08-01 → 1991-08-31
MON	Monitoring	Resolved	2025-07-01 → 2025-07-31

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
Bromodichloromethane	9.155 µg/L No EPA limit set worst single sample: 10.3 µg/L	64/64	SYR4	2012–2019
Chloroform	71.3 µg/L No EPA limit set worst single sample: 100 µg/L	64/64	SYR4	2012–2019
Dichloroacetic Acid	30.205 µg/L No EPA limit set worst single sample: 41.9 µg/L	64/64	SYR4	2012–2019
TTHM	77.81 µg/L 97% of the EPA limit 80 µg/L worst single sample: 106 µg/L	64/64	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	68.095 µg/L 113% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 109 µg/L	64/64	SYR4	2012–2019
Trichloroacetic Acid	36.7 µg/L No EPA limit set worst single sample: 63.2 µg/L	61/64	SYR4	2012–2019
Dibromochloromethane	2.345 µg/L No EPA limit set worst single sample: 2.5 µg/L	32/64	SYR4	2012–2019
Copper	465 µg/L 36% of the EPA limit 1300 µg/L worst single sample: 550 µg/L	31/60	SYR4	2013–2019
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	15/15	LCR	2025
Monochloroacetic Acid	3.565 µg/L No EPA limit set worst single sample: 3.6 µg/L	8/64	SYR4	2012–2019
Lead	13.3 µg/L 89% of the EPA limit 15 µg/L worst single sample: 14 µg/L	3/60	SYR4	2013–2019

33 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformDibromoacetic AcidHfpo-DaMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact: LEWIS, JEREMY
Phone: 870-886-2312
Email: [email protected]

Frequently asked questions about Walnut Ridge Waterworks

Is Walnut Ridge Waterworks tap water safe to drink?

EPA monitoring detected 11 contaminants in Walnut Ridge Waterworks'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 Walnut Ridge Waterworks's water?

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

How many people does Walnut Ridge Waterworks serve?

Walnut Ridge Waterworks reports serving 5,823 people in Arkansas, per its EPA record.

Has Walnut Ridge Waterworks had any water quality violations?

The EPA has 25 violations on file for Walnut Ridge Waterworks, of which 9 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.