Is Prairie Grove Waterworks Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Washington

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	Archived	2023-07-01 → 2023-09-30
MCL	Health-based	Archived	2023-07-01 → 2023-09-30
MCL	Health-based	Archived	2023-04-01 → 2023-06-30
MCL	Health-based	Archived	2023-04-01 → 2023-06-30
MCL	Health-based	Archived	2023-04-01 → 2023-06-30
MCL	Health-based	Resolved	2021-07-01 → 2021-09-30
MCL	Health-based	Resolved	2021-07-01 → 2021-09-30
MCL	Health-based	Resolved	2021-07-01 → 2021-09-30
MCL	Health-based	Resolved	2021-07-01 → 2021-09-30
MCL	Health-based	Resolved	2018-04-01 → 2018-06-30

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
Bromodichloromethane	10.97 µg/L No EPA limit set worst single sample: 11.5 µg/L	67/67	SYR4	2012–2019
Chloroform	96.64 µg/L No EPA limit set worst single sample: 102 µg/L	67/67	SYR4	2012–2019
Dichloroacetic Acid	33.3 µg/L No EPA limit set worst single sample: 41.1 µg/L	62/62	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	77.2 µg/L 129% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 83.8 µg/L	62/62	SYR4	2012–2019
Trichloroacetic Acid	32.95 µg/L No EPA limit set worst single sample: 47 µg/L	62/62	SYR4	2012–2019
TTHM	105.3 µg/L 132% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 111 µg/L	58/58	SYR4	2012–2019
Dibromochloromethane	2.005 µg/L No EPA limit set worst single sample: 2.4 µg/L	34/73	SYR4	2012–2019
Copper	591 µg/L 45% of the EPA limit 1300 µg/L worst single sample: 870 µg/L	19/41	SYR4	2014–2017
Monochloroacetic Acid	3.825 µg/L No EPA limit set worst single sample: 4.2 µg/L	16/62	SYR4	2012–2019
Fluoride	753.5 µg/L 19% of the EPA limit 4000 µg/L worst single sample: 760 µg/L	14/22	SYR4	2012–2019
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	14/14	LCR	2025
Lead	40.6 µg/L 271% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 46 µg/L	10/49	SYR4	2012–2019
Gross Beta Particle Activity	5.01 pCi/L No EPA limit set worst single sample: 5.4 pCi/L	7/9	SYR4	2012–2019
Nitrate-Nitrite	874 µg/L 8.7% of the EPA limit 10000 µg/L worst single sample: 960 µg/L	5/9	SYR4	2012–2019
Nitrate	960 µg/L 9.6% of the EPA limit 10000 µg/L	2/2	SYR4	2018
Di(2-ethylhexyl) Phthalate	1.36 µg/L 23% of the EPA limit 6 µg/L	1/15	SYR4	2012–2019
Dibromoacetic Acid	1.2 µg/L No EPA limit set	1/62	SYR4	2012–2019
Monobromoacetic Acid	1 µg/L No EPA limit set	1/62	SYR4	2012–2019

91 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: WILEY, CHUCK
Phone: 479-846-3980
Email: [email protected]

Frequently asked questions about Prairie Grove Waterworks

Is Prairie Grove Waterworks tap water safe to drink?

EPA monitoring detected 18 contaminants in Prairie Grove 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 Prairie Grove Waterworks's water?

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

How many people does Prairie Grove Waterworks serve?

Prairie Grove Waterworks reports serving 9,615 people in Arkansas, per its EPA record.

Has Prairie Grove Waterworks had any water quality violations?

The EPA has 38 violations on file for Prairie Grove Waterworks, of which 37 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.