CAMBRIDGE WATER DEPARTMENT
MA · PWS ID MA3049000 · Community water system
94
contaminants tested
12
detected
118,214
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0031 ug/L | 2/4 | 2024 |
| PFPeA | 0.0036 ug/L | 2/4 | 2024 |
| PFOA | 0.0048 ug/L | 1/4 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 32 UG/L | 1147/1147 | SYR4 | 2012–2019 |
| Nitrate | 771 UG/L | 558/558 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 76.4 UG/L | 228/228 | SYR4 | 2012–2019 |
| Nitrite | 175 UG/L | 119/231 | SYR4 | 2012–2018 |
| LEAD SUMMARY | 0.0110 mg/L | 16/16 | LCR | 2023 |
| Barium | 60 UG/L | 6/6 | SYR4 | 2012–2018 |
| Fluoride | 1060 UG/L | 6/6 | SYR4 | 2012–2018 |
| COPPER, FREE | 1.3 UG/L | 1/1 | SYR4 | 2016 |
| Chromium | 1.3 UG/L | 1/6 | SYR4 | 2012–2018 |
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, TotalArsenicAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalBromateCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebETHYLENE DIBROMIDEEndrinEthylbenzeneHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
CAMBRIDGE