Is Walnut Bayou Water Association Tap Water Safe? Quality Report

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

health-based violations

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08
TT	Health-based	Unaddressed	2025-08-08

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	1260 µg/L 97% of the EPA limit 1300 µg/L worst single sample: 1300 µg/L	29/36	SYR4	2013–2019
Lead	3 µg/L 20% of the EPA limit 15 µg/L worst single sample: 6 µg/L	23/36	SYR4	2013–2019
TTHM	75.95 µg/L 95% of the EPA limit 80 µg/L worst single sample: 80.2 µg/L	18/19	SYR4	2012–2019
Bromodichloromethane	18.6 µg/L No EPA limit set worst single sample: 19.4 µg/L	17/19	SYR4	2012–2019
Chloroform	13.468 µg/L No EPA limit set worst single sample: 32.7 µg/L	17/19	SYR4	2012–2019
Dibromochloromethane	30.3 µg/L No EPA limit set worst single sample: 31.9 µg/L	17/19	SYR4	2012–2019
Bromoform	25.24 µg/L No EPA limit set worst single sample: 26.5 µg/L	15/19	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	17.84 µg/L 30% of the EPA limit 60 µg/L worst single sample: 19.4 µg/L	14/19	SYR4	2012–2019
Dibromoacetic Acid	7.24 µg/L No EPA limit set worst single sample: 7.6 µg/L	13/19	SYR4	2012–2019
Dichloroacetic Acid	9.62 µg/L No EPA limit set worst single sample: 16.4 µg/L	13/19	SYR4	2012–2019
Trichloroacetic Acid	2.82 µg/L No EPA limit set worst single sample: 3 µg/L	13/19	SYR4	2012–2019
Lead	0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L	11/11	LCR	2025
Fluoride	406 µg/L 10% of the EPA limit 4000 µg/L worst single sample: 410 µg/L	9/9	SYR4	2013–2018
Barium	145 µg/L 7.2% of the EPA limit 2000 µg/L worst single sample: 150 µg/L	6/9	SYR4	2013–2018
Monobromoacetic Acid	1.74 µg/L No EPA limit set worst single sample: 1.9 µg/L	5/19	SYR4	2012–2019
Di(2-ethylhexyl) Phthalate	0.7885 µg/L 13% of the EPA limit 6 µg/L worst single sample: 0.7900 µg/L	4/9	SYR4	2013–2018
Gross Beta Particle Activity	3.1005 pCi/L No EPA limit set worst single sample: 3.21 pCi/L	4/9	SYR4	2013–2018
Nitrate-Nitrite	32 µg/L 0.3% of the EPA limit 10000 µg/L	4/42	SYR4	2012–2019
Combined Radium (-226 And -228)	0.9625 pCi/L 19% of the EPA limit 5 pCi/L worst single sample: 0.9930 pCi/L	3/6	SYR4	2016–2018
Beryllium, Total	0.5495 µg/L 14% of the EPA limit 4 µg/L worst single sample: 0.5500 µg/L	2/9	SYR4	2013–2018
Arsenic	1.1 µg/L 11% of the EPA limit 10 µg/L	1/9	SYR4	2013–2018
Endrin	0.0390 µg/L 2% of the EPA limit 2 µg/L	1/9	SYR4	2013–2018
Monochloroacetic Acid	1.6 µg/L No EPA limit set	1/19	SYR4	2012–2019
Selenium	1.2 µg/L 2.4% of the EPA limit 50 µg/L	1/9	SYR4	2013–2018

58 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: ROBERSON, CHARLES
Phone: 318-574-2463
Email: [email protected]

Frequently asked questions about Walnut Bayou Water Association

Is Walnut Bayou Water Association tap water safe to drink?

EPA monitoring detected 24 contaminants in Walnut Bayou Water Association'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 Walnut Bayou Water Association's water?

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

How many people does Walnut Bayou Water Association serve?

Walnut Bayou Water Association reports serving 3,531 people in Louisiana, per its EPA record.

Has Walnut Bayou Water Association had any water quality violations?

The EPA has 89 violations on file for Walnut Bayou Water Association, of which 48 are health-based (a contaminant limit or required treatment was breached) and 15 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.