Compliance record
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 |
|---|---|---|---|---|
| Copper | 500 µg/L 38% of the EPA limit 1300 µg/L | 31/69 | SYR4 | 2013–2019 |
| Arsenic | 8.2 µg/L 82% of the EPA limit 10 µg/L
worst single sample: 8.6 µg/L | 17/23 | SYR4 | 2013–2019 |
| Bromodichloromethane | 5.075 µg/L No EPA limit set
worst single sample: 8.3 µg/L | 16/16 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 2.45 µg/L No EPA limit set
worst single sample: 4.1 µg/L | 16/17 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.15 µg/L No EPA limit set
worst single sample: 12.1 µg/L | 16/16 | SYR4 | 2012–2019 |
| TTHM | 17.05 µg/L 21% of the EPA limit 80 µg/L
worst single sample: 31 µg/L | 16/16 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 6.025 µg/L 10% of the EPA limit 60 µg/L
worst single sample: 10 µg/L | 16/17 | SYR4 | 2012–2019 |
| Lead | 0.00059 mg/L 3.9% of the EPA limit 0.0150 mg/L | 12/12 | LCR | 2025 |
| Fluoride | 525 µg/L 13% of the EPA limit 4000 µg/L
worst single sample: 600 µg/L | 11/11 | SYR4 | 2013–2019 |
| Lead | 17.5 µg/L 117% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 22 µg/L | 11/69 | SYR4 | 2013–2019 |
| Bromoform | 4.285 µg/L No EPA limit set
worst single sample: 6.4 µg/L | 10/16 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 1.68 µg/L No EPA limit set
worst single sample: 1.8 µg/L | 9/17 | SYR4 | 2012–2019 |
| Chloroform | 3.265 µg/L No EPA limit set
worst single sample: 4 µg/L | 8/16 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.685 µg/L No EPA limit set
worst single sample: 2 µg/L | 8/17 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 3.14 µg/L 52% of the EPA limit 6 µg/L
worst single sample: 3.5 µg/L | 4/10 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 35 µg/L 0.4% of the EPA limit 10000 µg/L | 4/40 | SYR4 | 2012–2019 |
| Barium | 189 µg/L 9.5% of the EPA limit 2000 µg/L
worst single sample: 190 µg/L | 3/11 | SYR4 | 2013–2019 |
| Gross Beta Particle Activity | 2.249 pCi/L No EPA limit set
worst single sample: 2.27 pCi/L | 3/11 | SYR4 | 2013–2019 |
| Asbestos | 0.1900 MFL 2.7% of the EPA limit 7 MFL | 1/10 | SYR4 | 2019 |
| Combined Radium (-226 And -228) | 1.581 pCi/L 32% of the EPA limit 5 pCi/L | 1/9 | SYR4 | 2016–2019 |
| Monobromoacetic Acid | 2 µg/L No EPA limit set | 1/17 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2 µg/L No EPA limit set | 1/17 | SYR4 | 2012–2019 |
| Lithium | 9.07 µg/L No EPA limit set | 1/4 | UCMR-5 | 2023 |
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-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-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
Frequently asked questions about Lawco - Dequincy Water
Is Lawco - Dequincy Water tap water safe to drink?
EPA monitoring detected 23 contaminants in Lawco - Dequincy 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 Lawco - Dequincy Water's water?
EPA monitoring detected Copper, Arsenic, Bromodichloromethane, Dibromoacetic Acid, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Lawco - Dequincy Water serve?
Lawco - Dequincy Water reports serving 5,370 people in Louisiana, per its EPA record.
Has Lawco - Dequincy Water had any water quality violations?
The EPA has no formal drinking-water violations on file for Lawco - Dequincy Water.
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.