Is United Water Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: St. Martin Parish

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.

182

health-based violations

213

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
MCL	Health-based	Resolved	2022-10-01 → 2022-12-31
TT	Health-based	Resolved	2022-05-24
TT	Health-based	Resolved	2022-05-24

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	1900 µg/L 146% of the EPA limit, at the 95th percentile of samples — 1300 µg/L worst single sample: 2500 µg/L	310/377	SYR4	2012–2019
Lead	8 µg/L 53% of the EPA limit 15 µg/L worst single sample: 38 µg/L	201/377	SYR4	2012–2019
Arsenic	35.8 µg/L 358% of the EPA limit, at the 95th percentile of samples — 10 µg/L worst single sample: 37 µg/L	42/42	SYR4	2012–2019
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	22/22	LCR	2023
Barium	512.5 µg/L 26% of the EPA limit 2000 µg/L worst single sample: 1000 µg/L	14/20	SYR4	2014–2018
Bromodichloromethane	16.555 µg/L No EPA limit set worst single sample: 21.3 µg/L	14/14	SYR4	2013–2019
Chloroform	44.835 µg/L No EPA limit set worst single sample: 46.2 µg/L	14/14	SYR4	2013–2019
TTHM	63.415 µg/L 79% of the EPA limit 80 µg/L worst single sample: 74.4 µg/L	14/14	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	42.869 µg/L 71% of the EPA limit 60 µg/L worst single sample: 46.6 µg/L	14/14	SYR4	2013–2019
Trichloroacetic Acid	25.7 µg/L No EPA limit set worst single sample: 27 µg/L	14/14	SYR4	2013–2019
Dichloroacetic Acid	25.4 µg/L No EPA limit set worst single sample: 33.5 µg/L	13/14	SYR4	2013–2019
Dibromoacetic Acid	1.016 µg/L No EPA limit set worst single sample: 1.1 µg/L	8/14	SYR4	2013–2019
Dibromochloromethane	5.88 µg/L No EPA limit set worst single sample: 6.9 µg/L	7/14	SYR4	2013–2019
Nitrate-Nitrite	36 µg/L 0.4% of the EPA limit 10000 µg/L	6/22	SYR4	2012–2019
Fluoride	200 µg/L 5% of the EPA limit 4000 µg/L	4/4	SYR4	2014–2017
Chromium	10 µg/L 10% of the EPA limit 100 µg/L	2/4	SYR4	2014–2017
Combined Radium (-226 And -228)	1.1172 pCi/L 22% of the EPA limit 5 pCi/L worst single sample: 1.15 pCi/L	2/2	SYR4	2017
Di(2-ethylhexyl) Phthalate	3.2485 µg/L 54% of the EPA limit 6 µg/L worst single sample: 3.37 µg/L	2/6	SYR4	2014–2017
Monochloroacetic Acid	0.7490 µg/L No EPA limit set worst single sample: 0.7600 µg/L	2/14	SYR4	2013–2019
Gross Beta Particle Activity	3.15 pCi/L No EPA limit set	1/4	SYR4	2014–2017
Lithium	11.2 µg/L No EPA limit set	1/2	UCMR-5	2025

89 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BEGNAUD, TERRY
Phone: 337-654-1551
Email: [email protected]

Frequently asked questions about United Water

Is United Water tap water safe to drink?

EPA monitoring detected 21 contaminants in United Water'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 United Water's water?

EPA monitoring detected Copper, Lead, Arsenic, Lead, Barium, and others. The full list with the level and data source for each is above.

How many people does United Water serve?

United Water reports serving 4,446 people in Louisiana, per its EPA record.

Has United Water had any water quality violations?

The EPA has 213 violations on file for United Water, of which 182 are health-based (a contaminant limit or required treatment was breached) and 3 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.