Is Lone Grove Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Carter

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

249

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-10-17
MCL	Health-based	Resolved	2013-11-01 → 2013-11-30
MCL	Health-based	Resolved	2013-11-01 → 2013-11-30
MCL	Health-based	Resolved	2013-11-01 → 2013-11-30
MCL	Health-based	Resolved	2013-10-01 → 2013-10-31
MCL	Health-based	Resolved	2013-10-01 → 2013-10-31
MCL	Health-based	Resolved	2013-10-01 → 2013-10-31
MCL	Health-based	Resolved	2013-05-01 → 2013-05-31
MCL	Health-based	Resolved	2013-05-01 → 2013-05-31

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	138.1 µg/L 11% of the EPA limit 1300 µg/L worst single sample: 331.12 µg/L	74/80	SYR4	2012–2017
Lead	25.135 µg/L 168% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 44.2 µg/L	40/80	SYR4	2012–2017
Combined Radium (-226 And -228)	3.826 pCi/L 77% of the EPA limit 5 pCi/L worst single sample: 4.79 pCi/L	33/33	SYR4	2012–2019
Gross Beta Particle Activity	7.205 pCi/L No EPA limit set worst single sample: 21.2 pCi/L	30/33	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	5.958 pCi/L 40% of the EPA limit 15 pCi/L worst single sample: 11.4 pCi/L	29/33	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	17/17	LCR	2023
Barium	81.3 µg/L 4.1% of the EPA limit 2000 µg/L worst single sample: 84 µg/L	10/10	SYR4	2013–2019
Lithium	18.1 µg/L No EPA limit set	10/10	UCMR-5	2024
Fluoride	396 µg/L 9.9% of the EPA limit 4000 µg/L worst single sample: 410 µg/L	8/8	SYR4	2013–2016
Arsenic	0.9916 µg/L 9.9% of the EPA limit 10 µg/L worst single sample: 1 µg/L	2/15	SYR4	2013–2019
Chromium	8.65 µg/L 8.7% of the EPA limit 100 µg/L worst single sample: 9 µg/L	2/10	SYR4	2013–2019
Monochloroacetic Acid	1.2795 µg/L No EPA limit set worst single sample: 1.29 µg/L	2/28	SYR4	2013–2019
Toluene	116.933 µg/L 12% of the EPA limit 1000 µg/L worst single sample: 123 µg/L	2/26	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	1.2795 µg/L 2.1% of the EPA limit 60 µg/L worst single sample: 1.29 µg/L	2/28	SYR4	2013–2019
Antimony, Total	2.35 µg/L 39% of the EPA limit 6 µg/L	1/10	SYR4	2013–2019
Chloroform	0.5400 µg/L No EPA limit set	1/34	SYR4	2012–2019
Combined Uranium	5.5 µg/L 18% of the EPA limit 30 µg/L	1/33	SYR4	2012–2019
Selenium	1.05 µg/L 2.1% of the EPA limit 50 µg/L	1/10	SYR4	2013–2019

93 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-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: LONE GROVE
Phone: 580-657-3113
Email: [email protected]

Frequently asked questions about Lone Grove

Is Lone Grove tap water safe to drink?

EPA monitoring detected 18 contaminants in Lone Grove'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 Lone Grove's water?

EPA monitoring detected Copper, Lead, Combined Radium (-226 And -228), Gross Beta Particle Activity, Gross Alpha, Excl. Radon And U, and others. The full list with the level and data source for each is above.

How many people does Lone Grove serve?

Lone Grove reports serving 4,863 people in Oklahoma, per its EPA record.

Has Lone Grove had any water quality violations?

The EPA has 249 violations on file for Lone Grove, of which 11 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.