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.
11
health-based violations
11
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2006-04-01 → 2006-04-30 |
| MCL | Health-based | Resolved | 2006-04-01 → 2006-04-30 |
| MCL | Health-based | Resolved | 2006-04-01 → 2006-04-30 |
| MCL | Health-based | Resolved | 2006-04-01 → 2006-04-30 |
| MCL | Health-based | Archived | 2002-12-01 → 2002-12-31 |
| MCL | Health-based | Archived | 1994-08-15 → 1994-09-14 |
| MCL | Health-based | Archived | 1994-08-15 → 1994-09-14 |
| MCL | Health-based | Archived | 1994-08-15 → 1994-09-14 |
| MCL | Health-based | Archived | 1991-08-15 → 1991-09-14 |
| MCL | Health-based | Archived | 1991-08-15 → 1991-09-14 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfba | 0.0067 µg/L | 5/12 | 2024 |
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 |
|---|---|---|---|---|
| Chloroform | 19.82 µg/L No EPA limit set
worst single sample: 24.9 µg/L | 250/250 | SYR4 | 2012–2019 |
| Bromodichloromethane | 5.57 µg/L No EPA limit set
worst single sample: 8.4 µg/L | 247/250 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 35 µg/L No EPA limit set
worst single sample: 43.1 µg/L | 244/244 | SYR4 | 2012–2019 |
| TTHM | 25.085 µg/L 31% of the EPA limit 80 µg/L
worst single sample: 31.4 µg/L | 244/244 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 48.495 µg/L 81% of the EPA limit 60 µg/L
worst single sample: 81.3 µg/L | 244/244 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 12.85 µg/L No EPA limit set
worst single sample: 48 µg/L | 244/244 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.42 µg/L No EPA limit set
worst single sample: 5.2 µg/L | 197/244 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 4.705 µg/L No EPA limit set
worst single sample: 6.3 µg/L | 140/244 | SYR4 | 2012–2019 |
| Dibromochloromethane | 1.6 µg/L No EPA limit set
worst single sample: 3 µg/L | 121/250 | SYR4 | 2012–2019 |
| Copper | 305 µg/L 23% of the EPA limit 1300 µg/L
worst single sample: 400 µg/L | 60/100 | SYR4 | 2013–2019 |
| Monobromoacetic Acid | 8.88 µg/L No EPA limit set
worst single sample: 32 µg/L | 57/244 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 2155 µg/L 22% of the EPA limit 10000 µg/L
worst single sample: 2200 µg/L | 30/32 | SYR4 | 2012–2019 |
| Fluoride | 862.5 µg/L 22% of the EPA limit 4000 µg/L
worst single sample: 900 µg/L | 16/16 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2025 |
| Atrazine | 3.64 µg/L 121% of the EPA limit, at the 95th percentile of samples — 3 µg/L
worst single sample: 5.5 µg/L | 13/37 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 1.044 µg/L 17% of the EPA limit 6 µg/L
worst single sample: 1.2 µg/L | 13/36 | SYR4 | 2012–2019 |
| Lead | 4.35 µg/L 29% of the EPA limit 15 µg/L
worst single sample: 6 µg/L | 12/100 | SYR4 | 2013–2019 |
| Barium | 63.55 µg/L 3.2% of the EPA limit 2000 µg/L
worst single sample: 64 µg/L | 10/16 | SYR4 | 2012–2019 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L | 7/16 | SYR4 | 2012–2019 |
| Simazine | 1.1075 µg/L 28% of the EPA limit 4 µg/L
worst single sample: 1.11 µg/L | 6/31 | SYR4 | 2012–2019 |
| 2,4-D | 1.826 µg/L 2.6% of the EPA limit 70 µg/L
worst single sample: 2.1 µg/L | 5/28 | SYR4 | 2012–2019 |
| Dalapon | 33.828 µg/L 17% of the EPA limit 200 µg/L
worst single sample: 34.24 µg/L | 5/28 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 3.948 pCi/L No EPA limit set
worst single sample: 4.08 pCi/L | 5/16 | SYR4 | 2012–2019 |
| Selenium | 8.2 µg/L 16% of the EPA limit 50 µg/L
worst single sample: 10 µg/L | 5/16 | SYR4 | 2012–2019 |
| Bromoform | 0.7710 µg/L No EPA limit set
worst single sample: 0.7800 µg/L | 4/250 | SYR4 | 2012–2019 |
| Antimony, Total | 3.95 µg/L 66% of the EPA limit 6 µg/L
worst single sample: 4 µg/L | 2/21 | SYR4 | 2012–2019 |
| Combined Uranium | 0.6365 µg/L 2.1% of the EPA limit 30 µg/L
worst single sample: 0.6400 µg/L | 2/14 | SYR4 | 2012–2019 |
| Lithium | 12.5 µg/L No EPA limit set | 2/12 | UCMR-5 | 2024 |
| Carbon Tetrachloride | 0.7800 µg/L 16% of the EPA limit 5 µg/L | 1/15 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.6440 pCi/L 13% of the EPA limit 5 pCi/L | 1/10 | SYR4 | 2015–2019 |
| Toluene | 0.5300 µg/L 0.1% of the EPA limit 1000 µg/L | 1/15 | SYR4 | 2012–2019 |
80 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranChlordaneChromiumDichloromethaneDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Lafourche Water District 1
Is Lafourche Water District 1 tap water safe to drink?
EPA monitoring detected 32 contaminants in Lafourche Water District 1'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 Lafourche Water District 1's water?
EPA monitoring detected Chloroform, Bromodichloromethane, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.
How many people does Lafourche Water District 1 serve?
Lafourche Water District 1 reports serving 81,609 people in Louisiana, per its EPA record.
Has Lafourche Water District 1 had any water quality violations?
The EPA has 11 violations on file for Lafourche Water District 1, of which 11 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.