Is Tri-Water Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Union 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.

489

health-based violations

508

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Archived	2026-01-01 → 2026-03-31
MCL	Health-based	Archived	2026-01-01 → 2026-03-31
MCL	Health-based	Archived	2026-01-01 → 2026-03-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-10-01 → 2025-12-31
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30

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	4.39 µg/L No EPA limit set worst single sample: 15.3 µg/L	42/42	SYR4	2012–2019
Dibromoacetic Acid	21.785 µg/L No EPA limit set worst single sample: 24.1 µg/L	42/42	SYR4	2012–2019
Dibromochloromethane	14.4 µg/L No EPA limit set worst single sample: 42.1 µg/L	42/42	SYR4	2012–2019
TTHM	180.3 µg/L 225% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 218.1 µg/L	42/42	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	24.955 µg/L 42% of the EPA limit 60 µg/L worst single sample: 30 µg/L	42/42	SYR4	2012–2019
Bromoform	152 µg/L No EPA limit set worst single sample: 163 µg/L	41/42	SYR4	2012–2019
Chloroform	1.9 µg/L No EPA limit set worst single sample: 8.69 µg/L	41/42	SYR4	2012–2019
Copper	700 µg/L 54% of the EPA limit 1300 µg/L worst single sample: 800 µg/L	32/46	SYR4	2013–2019
Lead	3.15 µg/L 21% of the EPA limit 15 µg/L worst single sample: 4 µg/L	18/46	SYR4	2013–2019
Monobromoacetic Acid	2.63 µg/L No EPA limit set worst single sample: 2.8 µg/L	18/42	SYR4	2012–2019
Barium	60.75 µg/L 3% of the EPA limit 2000 µg/L worst single sample: 63 µg/L	16/20	SYR4	2012–2018
Trichloroacetic Acid	1.725 µg/L No EPA limit set worst single sample: 1.8 µg/L	16/42	SYR4	2012–2019
Fluoride	549 µg/L 14% of the EPA limit 4000 µg/L worst single sample: 560 µg/L	12/12	SYR4	2012–2018
Lead	0.0010 mg/L 6.7% of the EPA limit 0.0150 mg/L	8/8	LCR	2025
Arsenic	2.7 µg/L 27% of the EPA limit 10 µg/L worst single sample: 3 µg/L	7/20	SYR4	2012–2018
Dichloroacetic Acid	0.6175 µg/L No EPA limit set worst single sample: 0.6300 µg/L	6/42	SYR4	2012–2019
Nitrate-Nitrite	1000 µg/L 10% of the EPA limit 10000 µg/L	6/78	SYR4	2013–2019
Di(2-ethylhexyl) Phthalate	1.9025 µg/L 32% of the EPA limit 6 µg/L worst single sample: 2.03 µg/L	4/12	SYR4	2012–2018
Gross Beta Particle Activity	2.259 pCi/L No EPA limit set worst single sample: 2.32 pCi/L	3/12	SYR4	2012–2018
Monochloroacetic Acid	13.7 µg/L No EPA limit set worst single sample: 14 µg/L	3/42	SYR4	2012–2019
Combined Radium (-226 And -228)	0.8070 pCi/L 16% of the EPA limit 5 pCi/L	1/8	SYR4	2015–2018

59 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: WITHERS, LORI
Phone: 318-368-4115
Email: [email protected]

Frequently asked questions about Tri-Water

Is Tri-Water tap water safe to drink?

EPA monitoring detected 21 contaminants in Tri-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 Tri-Water's water?

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

How many people does Tri-Water serve?

Tri-Water reports serving 1,302 people in Louisiana, per its EPA record.

Has Tri-Water had any water quality violations?

The EPA has 508 violations on file for Tri-Water, of which 489 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.