SAN JOAQUIN COUNTY-MOKELUMNE ACRES
CA · PWS ID CA3910017 · Community water system
83
contaminants tested
27
detected
3,802
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0047 ug/L | 6/10 | 2025 |
| PFOA | 0.0083 ug/L | 3/10 | 2025 |
| PFBS | 0.0085 ug/L | 2/10 | 2025 |
| PFHxA | 0.0035 ug/L | 2/10 | 2025 |
| PFOS | 0.0135 ug/L | 2/10 | 2025 |
| PFPeA | 0.0033 ug/L | 2/10 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 9695.4 UG/L | 74/90 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0080 mg/L | 31/31 | LCR | 2024 |
| Combined Uranium | 34.419 UG/L | 14/14 | SYR4 | 2012–2019 |
| Arsenic | 7 UG/L | 13/13 | SYR4 | 2013–2019 |
| Barium | 357 UG/L | 10/13 | SYR4 | 2013–2019 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0600 UG/L | 9/21 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 900000 UG/L | 8/10 | SYR4 | 2013–2019 |
| Dibromochloromethane | 4 UG/L | 7/11 | SYR4 | 2014–2019 |
| TTHM | 13 UG/L | 7/11 | SYR4 | 2014–2019 |
| Bromodichloromethane | 3 UG/L | 6/11 | SYR4 | 2014–2019 |
| Bromoform | 6 UG/L | 6/11 | SYR4 | 2014–2019 |
| Chloroform | 2 UG/L | 4/11 | SYR4 | 2014–2019 |
| Chromium | 4 UG/L | 4/13 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 2 UG/L | 4/11 | SYR4 | 2014–2019 |
| Dibromoacetic acid | 2 UG/L | 3/11 | SYR4 | 2014–2019 |
| Fluoride | 100 UG/L | 3/13 | SYR4 | 2013–2019 |
| Mercury | 0.3200 UG/L | 3/13 | SYR4 | 2013–2019 |
| Lead | 1.3 UG/L | 2/13 | SYR4 | 2013–2019 |
| Monobromoacetic acid | 1 UG/L | 1/11 | SYR4 | 2014–2019 |
| Selenium | 1 UG/L | 1/13 | SYR4 | 2013–2019 |
| Tetrachloroethylene | 1.7 UG/L | 1/15 | SYR4 | 2012–2019 |
56 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBenzeneBeryllium, TotalCHLOROBENZENECOPPER, FREECadmiumCarbon tetrachlorideDICHLOROMETHANEDichloroacetic AcidETHYLENE DIBROMIDEEthylbenzeneHFPO-DAMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitritePFBAPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnASimazineStyreneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene