ASSUMPTION PARISH WW DISTRICT 1
LA · PWS ID LA1007001 · Community water system
112
contaminants tested
31
detected
21,366
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| 6:2 FTS | 0.0150 ug/L | 1/4 | 2024 |
| PFBA | 0.0061 ug/L | 1/4 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 34.3 UG/L | 139/139 | SYR4 | 2012–2019 |
| Chloroform | 99.3 UG/L | 138/139 | SYR4 | 2012–2019 |
| TTHM | 135.1 UG/L | 129/129 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 48 UG/L | 126/128 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 85.9 UG/L | 126/128 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 56.9 UG/L | 126/128 | SYR4 | 2012–2019 |
| Dibromochloromethane | 8.97 UG/L | 125/139 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 12.1 UG/L | 71/128 | SYR4 | 2012–2019 |
| COPPER, FREE | 900 UG/L | 59/65 | SYR4 | 2014–2019 |
| Lead | 3 UG/L | 43/65 | SYR4 | 2014–2019 |
| Dibromoacetic acid | 2.3 UG/L | 40/128 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 2100 UG/L | 24/30 | SYR4 | 2012–2019 |
| Fluoride | 1000 UG/L | 15/15 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0220 mg/L | 15/15 | LCR | 2023 |
| Arsenic | 4 UG/L | 14/15 | SYR4 | 2012–2019 |
| Dalapon | 47.9 UG/L | 11/20 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 8.2 UG/L | 10/128 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) phthalate | 1.27 UG/L | 8/18 | SYR4 | 2012–2019 |
| Combined Uranium | 1.49 UG/L | 6/13 | SYR4 | 2012–2017 |
| Barium | 58 UG/L | 5/15 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 4 PCI/L | 5/16 | SYR4 | 2012–2019 |
| Carbon tetrachloride | 1.07 UG/L | 3/15 | SYR4 | 2012–2019 |
| Hexachlorocyclopentadiene | 0.0580 UG/L | 3/18 | SYR4 | 2012–2019 |
| Simazine | 0.7700 UG/L | 3/18 | SYR4 | 2012–2019 |
| Bromoform | 0.6500 UG/L | 2/139 | SYR4 | 2012–2019 |
| lithium | 15.7 ug/L | 2/4 | UCMR-5 | 2024 |
| Atrazine | 0.3500 UG/L | 1/18 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 0.9390 PCI/L | 1/5 | SYR4 | 2015–2019 |
| Selenium | 0.5800 UG/L | 1/15 | SYR4 | 2012–2019 |
81 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 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranChlordaneChromiumDICHLOROMETHANEDi(2-ethylhexyl) adipateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon and UHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene