Tap WaterIndex

← Louisiana

Tap water quality report

City of St Martinville Water

EPA monitoring tested this supplier for 110 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
21
detected
7,263
people served
86
health-based violations
Louisiana rankingsLead in LouisianaPFAS in Louisiana
Water source
Ground water
Ownership
Local government
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.

86
health-based violations
128
violations on file
9
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2025-11-05
TT Health-based Resolved 2025-11-05
TT Health-based Resolved 2025-11-05
TT Health-based Resolved 2025-11-05
TT Health-based Unaddressed 2025-11-05
TT Health-based Unaddressed 2025-11-05
TT Health-based Unaddressed 2025-11-05
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2023-11-27
TT Health-based Resolved 2023-11-27

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
Bromodichloromethane
35.2 µg/L
No EPA limit set
 56/56 SYR4 2012–2019
Bromoform
24.9 µg/L
No EPA limit set
 56/56 SYR4 2012–2019
Chloroform
29.5 µg/L
No EPA limit set
 56/56 SYR4 2012–2019
Dibromoacetic Acid
8.6 µg/L
No EPA limit set
 56/56 SYR4 2012–2019
Dibromochloromethane
33.7 µg/L
No EPA limit set
 56/56 SYR4 2012–2019
TTHM
103.5 µg/L 129%
of the EPA limit, in the worst sample — 80 µg/L
 56/56 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
68.1 µg/L 114%
of the EPA limit, in the worst sample — 60 µg/L
 56/56 SYR4 2012–2019
Dichloroacetic Acid
13 µg/L
No EPA limit set
 55/56 SYR4 2012–2019
Trichloroacetic Acid
11.2 µg/L
No EPA limit set
 55/56 SYR4 2012–2019
Copper
2000 µg/L 154%
of the EPA limit, in the worst sample — 1300 µg/L
 39/44 SYR4 2014–2019
Lead
50 µg/L 333%
of the EPA limit, in the worst sample — 15 µg/L
 30/44 SYR4 2014–2019
Monochloroacetic Acid
51.2 µg/L
No EPA limit set
 15/56 SYR4 2012–2019
Monobromoacetic Acid
14.7 µg/L
No EPA limit set
 14/57 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
Fluoride
440 µg/L 11%
of the EPA limit 4000 µg/L
 6/6 SYR4 2013–2019
Barium
130 µg/L 6.5%
of the EPA limit 2000 µg/L
 2/6 SYR4 2013–2019
Di(2-ethylhexyl) Phthalate
0.6500 µg/L 11%
of the EPA limit 6 µg/L
 2/6 SYR4 2013–2019
Nitrate-Nitrite
200 µg/L 2%
of the EPA limit 10000 µg/L
 2/24 SYR4 2012–2019
Lithium
31.5 µg/L
No EPA limit set
 2/2 UCMR-5 2025
Combined Radium (-226 And -228)
1 pCi/L 20%
of the EPA limit 5 pCi/L
 1/4 SYR4 2016–2019
Gross Beta Particle Activity
2.65 pCi/L
No EPA limit set
 1/6 SYR4 2013–2019
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, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WILLIS, JASON
Phone
337-394-2230
Email
jwillis@stmartinville.net

Frequently asked questions about City of St Martinville Water

Is City of St Martinville Water tap water safe to drink?

EPA monitoring detected 21 contaminants in City of St Martinville 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 City of St Martinville Water's water?

EPA monitoring detected Bromodichloromethane, Bromoform, Chloroform, Dibromoacetic Acid, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does City of St Martinville Water serve?

City of St Martinville Water reports serving 7,263 people in Louisiana, per its EPA record.

Has City of St Martinville Water had any water quality violations?

The EPA has 128 violations on file for City of St Martinville Water, of which 86 are health-based (a contaminant limit or required treatment was breached) and 9 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.