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.
262
health-based violations
410
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Archived | 2025-08-01 → 2025-08-31 |
| TT | Health-based | Archived | 2025-08-01 → 2025-08-31 |
| TT | Health-based | Archived | 2025-08-01 → 2025-08-31 |
| TT | Health-based | Resolved | 2024-09-01 → 2024-09-30 |
| TT | Health-based | Resolved | 2024-09-01 → 2024-09-30 |
| TT | Health-based | Resolved | 2024-09-01 → 2024-09-30 |
| TT | Health-based | Resolved | 2024-09-01 → 2024-09-30 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-01-31 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-01-31 |
| TT | Health-based | Resolved | 2024-01-01 → 2024-01-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| Pfpea | 0.0031 µg/L | 1/2 | 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 | 42.945 µg/L No EPA limit set
worst single sample: 56.5 µg/L | 68/68 | SYR4 | 2012–2019 |
| Chloroform | 100.125 µg/L No EPA limit set
worst single sample: 128 µg/L | 68/68 | SYR4 | 2012–2019 |
| Dibromochloromethane | 25.4 µg/L No EPA limit set
worst single sample: 48.5 µg/L | 67/68 | SYR4 | 2012–2019 |
| TTHM | 143.48 µg/L 179% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 173.8 µg/L | 65/65 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 72.2 µg/L No EPA limit set
worst single sample: 191 µg/L | 61/64 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 145.2 µg/L 242% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 309 µg/L | 61/64 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 63.925 µg/L No EPA limit set
worst single sample: 118 µg/L | 60/64 | SYR4 | 2012–2019 |
| Copper | 1690 µg/L 130% of the EPA limit, at the 95th percentile of samples — 1300 µg/L
worst single sample: 3600 µg/L | 52/125 | SYR4 | 2012–2019 |
| Lead | 7.4 µg/L 49% of the EPA limit 15 µg/L
worst single sample: 14 µg/L | 49/125 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 8.42 µg/L No EPA limit set
worst single sample: 13.4 µg/L | 45/64 | SYR4 | 2012–2019 |
| Bromoform | 7.569 µg/L No EPA limit set
worst single sample: 11.8 µg/L | 27/68 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 10.38 µg/L No EPA limit set
worst single sample: 11.3 µg/L | 22/64 | SYR4 | 2012–2019 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L | 14/14 | LCR | 2024 |
| Monobromoacetic Acid | 1.85 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 11/64 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 350 µg/L 3.5% of the EPA limit 10000 µg/L | 10/16 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.8425 µg/L 14% of the EPA limit 6 µg/L
worst single sample: 0.8500 µg/L | 6/15 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 3.9875 pCi/L No EPA limit set
worst single sample: 4 pCi/L | 6/8 | SYR4 | 2012–2019 |
| Barium | 64 µg/L 3.2% of the EPA limit 2000 µg/L | 5/8 | SYR4 | 2012–2019 |
| Fluoride | 70.4 µg/L 1.8% of the EPA limit 4000 µg/L
worst single sample: 71 µg/L | 5/8 | SYR4 | 2012–2019 |
| Arsenic | 1 µg/L 10% of the EPA limit 10 µg/L | 3/8 | SYR4 | 2012–2019 |
| Dalapon | 35.5523 µg/L 18% of the EPA limit 200 µg/L
worst single sample: 36.29 µg/L | 3/13 | SYR4 | 2012–2019 |
| Carbon Tetrachloride | 0.5770 µg/L 12% of the EPA limit 5 µg/L
worst single sample: 0.5800 µg/L | 2/8 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 0.5968 pCi/L 12% of the EPA limit 5 pCi/L
worst single sample: 0.6020 pCi/L | 2/5 | SYR4 | 2015–2019 |
| Ethylbenzene | 0.5300 µg/L 0.1% of the EPA limit 700 µg/L | 1/8 | SYR4 | 2012–2019 |
| Xylenes, Total | 1.58 µg/L 0% of the EPA limit 10000 µg/L | 1/8 | SYR4 | 2012–2019 |
86 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-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranChlordaneChromiumCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Desoto Parish Water Works District 1
Is Desoto Parish Water Works District 1 tap water safe to drink?
EPA monitoring detected 26 contaminants in Desoto Parish Water Works 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 Desoto Parish Water Works District 1's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Desoto Parish Water Works District 1 serve?
Desoto Parish Water Works District 1 reports serving 7,173 people in Louisiana, per its EPA record.
Has Desoto Parish Water Works District 1 had any water quality violations?
The EPA has 410 violations on file for Desoto Parish Water Works District 1, of which 262 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.