CITY OF PLAQUEMINE WATER SYSTEM
LA · PWS ID LA1047005 · Community water system
112
contaminants tested
33
detected
14,043
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0142 ug/L | 1/4 | 2024 |
| PFBS | 0.0030 ug/L | 1/4 | 2024 |
| PFOA | 0.0062 ug/L | 1/4 | 2024 |
| PFOS | 0.0060 ug/L | 1/4 | 2024 |
| PFPeA | 0.0032 ug/L | 1/4 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Chloroform | 34.52 UG/L | 112/113 | SYR4 | 2012–2019 |
| TTHM | 16.2 UG/L | 109/109 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 14.9 UG/L | 102/109 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 12.4 UG/L | 97/109 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 2.2 UG/L | 85/109 | SYR4 | 2012–2019 |
| Bromodichloromethane | 3.94 UG/L | 71/113 | SYR4 | 2012–2019 |
| Lead | 134 UG/L | 52/65 | SYR4 | 2014–2019 |
| Arsenic | 37 UG/L | 35/37 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 1.7 UG/L | 31/109 | SYR4 | 2012–2019 |
| COPPER, FREE | 200 UG/L | 18/65 | SYR4 | 2014–2019 |
| Fluoride | 700 UG/L | 15/15 | SYR4 | 2013–2019 |
| Dibromochloromethane | 1.3 UG/L | 13/113 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 1.55 UG/L | 12/25 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0100 mg/L | 11/11 | LCR | 2023 |
| Gross Beta Particle Activity | 3.46 PCI/L | 7/15 | SYR4 | 2013–2019 |
| Combined Radium (-226 and -228) | 1.665 PCI/L | 6/10 | SYR4 | 2016–2019 |
| Nitrate-Nitrite | 1000 UG/L | 6/48 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 1.01 UG/L | 5/13 | SYR4 | 2013–2019 |
| Barium | 380 UG/L | 3/15 | SYR4 | 2013–2019 |
| HEXACHLOROBENZENE | 0.1000 UG/L | 3/12 | SYR4 | 2013–2019 |
| Monobromoacetic acid | 1.7 UG/L | 3/109 | SYR4 | 2012–2019 |
| lithium | 21 ug/L | 3/4 | UCMR-5 | 2024 |
| 1,2-Dichloroethane | 2.25 UG/L | 2/25 | SYR4 | 2012–2019 |
| Chromium | 10 UG/L | 2/15 | SYR4 | 2013–2019 |
| Gross Alpha, Excl. Radon and U | 4.76 PCI/L | 2/10 | SYR4 | 2013–2016 |
| Vinyl chloride | 0.5800 UG/L | 2/25 | SYR4 | 2012–2019 |
| Bromoform | 0.4700 UG/L | 1/113 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 2.8 UG/L | 1/109 | SYR4 | 2012–2019 |
79 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneCombined UraniumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneXylenes, Totalo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene