ST CHARLES PARISH DEPT OF WATERWORKS
LA · PWS ID LA1089001 · Community water system
112
contaminants tested
28
detected
52,879
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0136 ug/L | 7/8 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 26 UG/L | 153/153 | SYR4 | 2012–2019 |
| Chloroform | 68 UG/L | 153/153 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 40 UG/L | 149/149 | SYR4 | 2012–2019 |
| TTHM | 89.4 UG/L | 149/149 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 91.5 UG/L | 149/149 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 48 UG/L | 149/149 | SYR4 | 2012–2019 |
| Dibromochloromethane | 12 UG/L | 145/153 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 5.5 UG/L | 101/149 | SYR4 | 2012–2019 |
| COPPER, FREE | 700 UG/L | 93/126 | SYR4 | 2014–2019 |
| Monochloroacetic acid | 10 UG/L | 64/149 | SYR4 | 2012–2019 |
| Lead | 19 UG/L | 50/126 | SYR4 | 2014–2019 |
| Nitrate-Nitrite | 2000 UG/L | 18/18 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 14.6 UG/L | 17/149 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0030 mg/L | 11/11 | LCR | 2023 |
| Bromoform | 1 UG/L | 9/153 | SYR4 | 2012–2019 |
| Fluoride | 1000 UG/L | 9/9 | SYR4 | 2012–2019 |
| Arsenic | 1.3 UG/L | 7/9 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 1.3 UG/L | 7/18 | SYR4 | 2012–2019 |
| Barium | 58 UG/L | 6/9 | SYR4 | 2012–2019 |
| Dalapon | 37.35 UG/L | 6/15 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 2.99 PCI/L | 4/9 | SYR4 | 2012–2019 |
| lithium | 15 ug/L | 4/8 | UCMR-5 | 2023 |
| Combined Uranium | 1.49 UG/L | 3/5 | SYR4 | 2012–2017 |
| Carbon tetrachloride | 0.5100 UG/L | 1/12 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 0.7270 PCI/L | 1/6 | SYR4 | 2015–2019 |
| Selenium | 0.5500 UG/L | 1/9 | SYR4 | 2012–2019 |
| Simazine | 0.6600 UG/L | 1/18 | SYR4 | 2012–2019 |
84 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, TotalCHLOROBENZENECYANIDECadmiumCarbofuranChlordaneChromiumDICHLOROMETHANEDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon and UHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene