SUBURBAN WATER SYSTEMS-SAN JOSE
CA · PWS ID CA1910205 · Community water system
82
contaminants tested
29
detected
168,843
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0062 ug/L | 1/17 | 2025 |
| PFBS | 0.0036 ug/L | 1/17 | 2025 |
| PFHxA | 0.0033 ug/L | 1/17 | 2025 |
| PFPeA | 0.0035 ug/L | 1/17 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 12000 UG/L | 1946/1948 | SYR4 | 2012–2019 |
| Trichloroethylene | 14 UG/L | 498/937 | SYR4 | 2012–2019 |
| TTHM | 78 UG/L | 246/259 | SYR4 | 2012–2019 |
| Dibromochloromethane | 24 UG/L | 236/780 | SYR4 | 2012–2019 |
| Bromodichloromethane | 25 UG/L | 218/848 | SYR4 | 2012–2019 |
| Chloroform | 48 UG/L | 212/854 | SYR4 | 2012–2019 |
| Bromoform | 11 UG/L | 196/810 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 27 UG/L | 187/248 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 16 UG/L | 172/248 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 6.6 UG/L | 163/248 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 10 UG/L | 133/248 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 7.8 UG/L | 69/937 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 16 UG/L | 61/936 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0090 mg/L | 38/38 | LCR | 2025 |
| Fluoride | 490 UG/L | 28/28 | SYR4 | 2012–2019 |
| Carbon tetrachloride | 0.6700 UG/L | 12/951 | SYR4 | 2012–2019 |
| lithium | 54 ug/L | 6/17 | UCMR-5 | 2025 |
| Chromium | 17 UG/L | 4/21 | SYR4 | 2012–2019 |
| Combined Uranium | 2.235 UG/L | 4/4 | SYR4 | 2013–2016 |
| Nitrate-Nitrite | 5900 UG/L | 4/4 | SYR4 | 2016–2019 |
| CHLOROBENZENE | 1.4 UG/L | 3/937 | SYR4 | 2012–2019 |
| Arsenic | 2.5 UG/L | 2/21 | SYR4 | 2012–2019 |
| Barium | 150 UG/L | 2/21 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 1.2 UG/L | 1/937 | SYR4 | 2012–2019 |
| trans-1,2-Dichloroethylene | 1.3 UG/L | 1/937 | SYR4 | 2012–2019 |
53 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalBenzeneBenzo(a)pyreneBeryllium, TotalCOPPER, FREECYANIDECadmiumDICHLOROMETHANEDi(2-ethylhexyl) phthalateEthylbenzeneHFPO-DALeadMercuryMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitritePFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnASeleniumStyreneThallium, TotalTolueneVinyl chlorideXylenes, Totalo-Dichlorobenzenep-Dichlorobenzene