Is Oak Grove Tap Water Safe? Quality Report

Water source: GWP
Ownership: Local government
Counties served: Jackson

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	2008-06-01 → 2008-06-30
MCL	Health-based	Resolved	2008-06-01 → 2008-06-30
MCL	Health-based	Resolved	2008-06-01 → 2008-06-30
MCL	Health-based	Resolved	2008-06-01 → 2008-06-30
RPT	Monitoring	Unaddressed	2025-07-02
Other	Monitoring	Resolved	2013-06-22
Other	Monitoring	Resolved	2012-07-01
MR	Monitoring	Resolved	2012-05-01 → 2012-05-31
MR	Monitoring	Resolved	2012-05-01 → 2012-05-31
MR	Monitoring	Resolved	2012-05-01 → 2012-05-31

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	11.85 µg/L 0.9% of the EPA limit 1300 µg/L worst single sample: 21.6 µg/L	56/60	SYR4	2012–2018
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	24/24	LCR	2024
Chloroform	5.66 µg/L No EPA limit set worst single sample: 5.77 µg/L	11/11	SYR4	2012–2019
Dichloroacetic Acid	8.9925 µg/L No EPA limit set worst single sample: 9.87 µg/L	10/11	SYR4	2012–2019
TTHM	6.839 µg/L 8.5% of the EPA limit 80 µg/L worst single sample: 6.93 µg/L	8/11	SYR4	2012–2019
Lead	8.1225 µg/L 54% of the EPA limit 15 µg/L worst single sample: 9.13 µg/L	6/60	SYR4	2012–2018
Bromodichloromethane	1.3725 µg/L No EPA limit set worst single sample: 1.38 µg/L	4/11	SYR4	2012–2019
Lithium	43 µg/L No EPA limit set	2/2	UCMR-5	2024
Total Haloacetic Acids (HAA5)	1.14 µg/L 1.9% of the EPA limit 60 µg/L	1/11	SYR4	2012–2019
Trichloroacetic Acid	1.14 µg/L No EPA limit set	1/11	SYR4	2012–2019

34 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformDibromoacetic AcidDibromochloromethaneHfpo-DaMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfuna

Utility contact

Contact: ALFORD, COREY
Phone: 816-690-3770
Email: [email protected]

Frequently asked questions about Oak Grove

Is Oak Grove tap water safe to drink?

EPA monitoring detected 10 contaminants in Oak 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 Oak Grove's water?

EPA monitoring detected Copper, Lead, Chloroform, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does Oak Grove serve?

Oak Grove reports serving 8,289 people in Missouri, per its EPA record.

Has Oak Grove had any water quality violations?

The EPA has 26 violations on file for Oak Grove, of which 4 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.