PORTERVILLE, CITY OF
CA · PWS ID CA5410010 · Community water system
101
contaminants tested
29
detected
63,487
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOS | 0.0230 ug/L | 13/58 | 2023 |
| PFBS | 0.0091 ug/L | 5/58 | 2023 |
| PFHxS | 0.0036 ug/L | 4/58 | 2023 |
| PFBA | 0.0058 ug/L | 2/58 | 2023 |
| PFHpA | 0.0065 ug/L | 2/58 | 2023 |
| PFHxA | 0.0085 ug/L | 2/58 | 2023 |
| PFOA | 0.0220 ug/L | 2/58 | 2023 |
| PFPeA | 0.0093 ug/L | 2/58 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 11209.6 UG/L | 950/958 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 7.4 UG/L | 172/269 | SYR4 | 2012–2019 |
| Barium | 230 UG/L | 54/70 | SYR4 | 2013–2019 |
| Fluoride | 300 UG/L | 54/70 | SYR4 | 2013–2019 |
| 1,1-Dichloroethylene | 1.5 UG/L | 45/135 | SYR4 | 2012–2019 |
| TTHM | 9 UG/L | 36/42 | SYR4 | 2013–2019 |
| Dibromochloromethane | 3.1 UG/L | 35/45 | SYR4 | 2013–2019 |
| Bromodichloromethane | 2 UG/L | 30/45 | SYR4 | 2013–2019 |
| Bromoform | 5 UG/L | 29/45 | SYR4 | 2013–2019 |
| Combined Uranium | 9.6701 UG/L | 29/29 | SYR4 | 2013–2019 |
| LEAD SUMMARY | 0.0080 mg/L | 27/27 | LCR | 2025 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0500 UG/L | 20/101 | SYR4 | 2012–2019 |
| Chloroform | 1.1 UG/L | 19/45 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 2 UG/L | 13/42 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 2 UG/L | 12/42 | SYR4 | 2013–2019 |
| lithium | 11.6 ug/L | 12/58 | UCMR-5 | 2023 |
| Arsenic | 3 UG/L | 8/70 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 1 UG/L | 3/42 | SYR4 | 2013–2019 |
| COPPER, FREE | 690 UG/L | 1/70 | SYR4 | 2013–2019 |
| Nitrite | 0.8000 UG/L | 1/71 | SYR4 | 2013–2019 |
| Toluene | 0.5000 UG/L | 1/80 | SYR4 | 2013–2019 |
72 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABenzeneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumDICHLOROMETHANEDalaponDichloroacetic AcidDinosebETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOLeadMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAAOXAMYLPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
PORTERVILLE