SWANSEA WATER DISTRICT
MA · PWS ID MA4292000 · Community water system
103
contaminants tested
21
detected
17,375
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0035 ug/L | 3/12 | 2024 |
| PFOA | 0.0051 ug/L | 3/12 | 2024 |
| PFBA | 0.0109 ug/L | 2/12 | 2024 |
| PFHxS | 0.0077 ug/L | 2/12 | 2024 |
| PFPeA | 0.0049 ug/L | 2/12 | 2024 |
| PFHxA | 0.0040 ug/L | 1/12 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 162 UG/L | 116/116 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 83.2 UG/L | 116/116 | SYR4 | 2012–2019 |
| Bromodichloromethane | 49.1 UG/L | 100/100 | SYR4 | 2013–2019 |
| Chloroform | 86 UG/L | 100/100 | SYR4 | 2013–2019 |
| Dibromochloromethane | 48.5 UG/L | 100/100 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 38.5 UG/L | 91/100 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 35.6 UG/L | 79/100 | SYR4 | 2013–2019 |
| Nitrate | 3510 UG/L | 78/92 | SYR4 | 2012–2019 |
| Bromoform | 92.9 UG/L | 69/100 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 20.9 UG/L | 57/100 | SYR4 | 2013–2019 |
| COPPER, FREE | 140 UG/L | 27/41 | SYR4 | 2013–2019 |
| Fluoride | 1370 UG/L | 24/27 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 8.7 UG/L | 24/100 | SYR4 | 2013–2019 |
| Monobromoacetic acid | 3.6 UG/L | 19/100 | SYR4 | 2013–2019 |
| LEAD SUMMARY | 0.0100 mg/L | 15/15 | LCR | 2025 |
82 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalArsenicAsbestosAtrazineBHC-GAMMABariumBenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebETHYLENE DIBROMIDEEndrinEthylbenzeneHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
SWANSEA