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.
216
health-based violations
241
violations on file
0
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 | 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 | 2025-10-01 → 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 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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 | 23 µg/L No EPA limit set
worst single sample: 47 µg/L | 79/80 | SYR4 | 2012–2019 |
| Chloroform | 111 µg/L No EPA limit set
worst single sample: 140 µg/L | 79/80 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 60.5 µg/L No EPA limit set
worst single sample: 86 µg/L | 76/76 | SYR4 | 2012–2019 |
| TTHM | 131.85 µg/L 165% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 210.1 µg/L | 76/76 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 111.075 µg/L 185% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 130.7 µg/L | 76/76 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 36.25 µg/L No EPA limit set
worst single sample: 51 µg/L | 76/76 | SYR4 | 2012–2019 |
| Dibromochloromethane | 18.65 µg/L No EPA limit set
worst single sample: 31 µg/L | 68/80 | SYR4 | 2012–2019 |
| Lead | 5.65 µg/L 38% of the EPA limit 15 µg/L
worst single sample: 43 µg/L | 68/109 | SYR4 | 2014–2019 |
| Copper | 335 µg/L 26% of the EPA limit 1300 µg/L
worst single sample: 700 µg/L | 54/109 | SYR4 | 2014–2019 |
| Dibromoacetic Acid | 9.99 µg/L No EPA limit set
worst single sample: 13 µg/L | 43/76 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 7.5 µg/L No EPA limit set
worst single sample: 11.3 µg/L | 36/76 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 2480 µg/L 25% of the EPA limit 10000 µg/L
worst single sample: 2500 µg/L | 22/22 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 11.92 µg/L No EPA limit set
worst single sample: 22 µg/L | 17/76 | SYR4 | 2012–2019 |
| Bromoform | 13.7 µg/L No EPA limit set
worst single sample: 15 µg/L | 14/80 | SYR4 | 2012–2019 |
| Fluoride | 590 µg/L 15% of the EPA limit 4000 µg/L
worst single sample: 640 µg/L | 11/11 | SYR4 | 2012–2019 |
| Lead | 0.0050 mg/L 33% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2023 |
| Arsenic | 5.005 µg/L 50% of the EPA limit 10 µg/L
worst single sample: 7 µg/L | 8/11 | SYR4 | 2012–2019 |
| Barium | 67.9 µg/L 3.4% of the EPA limit 2000 µg/L
worst single sample: 70 µg/L | 7/11 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.8900 µg/L 15% of the EPA limit 6 µg/L
worst single sample: 0.9200 µg/L | 7/20 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 6.031 pCi/L No EPA limit set
worst single sample: 7 pCi/L | 7/11 | SYR4 | 2012–2019 |
| Atrazine | 0.8825 µg/L 29% of the EPA limit 3 µg/L
worst single sample: 1 µg/L | 6/20 | SYR4 | 2012–2019 |
| Dalapon | 14.0284 µg/L 7% of the EPA limit 200 µg/L
worst single sample: 15.523 µg/L | 5/17 | SYR4 | 2012–2019 |
| Hexachlorocyclopentadiene | 0.4659 µg/L 0.9% of the EPA limit 50 µg/L
worst single sample: 0.5400 µg/L | 4/20 | SYR4 | 2012–2019 |
| Selenium | 2.046 µg/L 4.1% of the EPA limit 50 µg/L
worst single sample: 2.2 µg/L | 3/11 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.7022 pCi/L 14% of the EPA limit 5 pCi/L
worst single sample: 0.7080 pCi/L | 2/7 | SYR4 | 2015–2019 |
| Combined Uranium | 1.4475 µg/L 4.8% of the EPA limit 30 µg/L
worst single sample: 1.49 µg/L | 2/7 | SYR4 | 2012–2017 |
| Antimony, Total | 0.6600 µg/L 11% of the EPA limit 6 µg/L | 1/11 | SYR4 | 2012–2019 |
| Simazine | 0.8000 µg/L 20% of the EPA limit 4 µg/L | 1/20 | SYR4 | 2012–2019 |
| Lithium | 11 µg/L No EPA limit set | 1/4 | UCMR-5 | 2025 |
82 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-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Port Sulphur Water District
Is Port Sulphur Water District tap water safe to drink?
EPA monitoring detected 31 contaminants in Port Sulphur Water District'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 Port Sulphur Water District's water?
EPA monitoring detected Bromodichloromethane, Chloroform, 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 Port Sulphur Water District serve?
Port Sulphur Water District reports serving 10,308 people in Louisiana, per its EPA record.
Has Port Sulphur Water District had any water quality violations?
The EPA has 241 violations on file for Port Sulphur Water District, of which 216 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.