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Tap water quality report

Town of Mamou Water

EPA monitoring tested this supplier for 111 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

111
contaminants tested
23
detected
4,559
people served
207
health-based violations
Louisiana rankingsLead in LouisianaPFAS in Louisiana
Water source
Ground water
Ownership
Local government
Counties served
Evangeline 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.

207
health-based violations
235
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2023-01-01 → 2023-03-31
MCL Health-based Resolved 2023-01-01 → 2023-03-31
MCL Health-based Resolved 2023-01-01 → 2023-03-31
MCL Health-based Resolved 2023-01-01 → 2023-03-31
MCL Health-based Resolved 2023-01-01 → 2023-03-31
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

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Fluoride
3300 µg/L 83%
of the EPA limit 4000 µg/L
 109/109 SYR4 2012–2019
Chloroform
94.1 µg/L
No EPA limit set
 54/56 SYR4 2013–2019
TTHM
112.3 µg/L 140%
of the EPA limit, in the worst sample — 80 µg/L
 54/56 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
97.8 µg/L 163%
of the EPA limit, in the worst sample — 60 µg/L
 54/56 SYR4 2013–2019
Dichloroacetic Acid
37.8 µg/L
No EPA limit set
 52/56 SYR4 2013–2019
Bromodichloromethane
16.4 µg/L
No EPA limit set
 51/56 SYR4 2013–2019
Trichloroacetic Acid
60.2 µg/L
No EPA limit set
 51/56 SYR4 2013–2019
Dibromochloromethane
3.5 µg/L
No EPA limit set
 30/56 SYR4 2013–2019
Lead
3 µg/L 20%
of the EPA limit 15 µg/L
 22/47 SYR4 2014–2018
Monochloroacetic Acid
7.2 µg/L
No EPA limit set
 19/56 SYR4 2013–2019
Lead
0.0070 mg/L 47%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2026
Copper
300 µg/L 23%
of the EPA limit 1300 µg/L
 15/47 SYR4 2014–2018
Dibromoacetic Acid
0.8900 µg/L
No EPA limit set
 13/56 SYR4 2013–2019
Arsenic
2.5 µg/L 25%
of the EPA limit 10 µg/L
 4/11 SYR4 2012–2018
Barium
300 µg/L 15%
of the EPA limit 2000 µg/L
 3/11 SYR4 2012–2018
Monobromoacetic Acid
3.41 µg/L
No EPA limit set
 3/56 SYR4 2013–2019
Bromoform
1.47 µg/L
No EPA limit set
 2/56 SYR4 2013–2019
Carbon Tetrachloride
0.7300 µg/L 15%
of the EPA limit 5 µg/L
 2/11 SYR4 2012–2018
Lithium
18.6 µg/L
No EPA limit set
 2/2 UCMR-5 2024
Combined Radium (-226 And -228)
0.8290 pCi/L 17%
of the EPA limit 5 pCi/L
 1/4 SYR4 2017–2018
Combined Uranium
1.49 µg/L 5%
of the EPA limit 30 µg/L
 1/8 SYR4 2012–2018
Dalapon
1.5 µg/L 0.8%
of the EPA limit 200 µg/L
 1/10 SYR4 2012–2018
Gross Beta Particle Activity
1.14 pCi/L
No EPA limit set
 1/11 SYR4 2012–2018
88 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, TotalChlorobenzeneCyanideCadmiumCarbofuranChlordaneChromiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DESHOTEL, LEISA
Phone
337-468-3272
Email
mayor@townofmamou.com

Frequently asked questions about Town of Mamou Water

Is Town of Mamou Water tap water safe to drink?

EPA monitoring detected 23 contaminants in Town of Mamou 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 Town of Mamou Water's water?

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

How many people does Town of Mamou Water serve?

Town of Mamou Water reports serving 4,559 people in Louisiana, per its EPA record.

Has Town of Mamou Water had any water quality violations?

The EPA has 235 violations on file for Town of Mamou Water, of which 207 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.