CITY OF LATHROP
CA · PWS ID CA3910015 · Community water system
87
contaminants tested
24
detected
35,080
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0050 ug/L | 2/6 | 2024 |
| PFOS | 0.0170 ug/L | 2/6 | 2024 |
| PFHxS | 0.0035 ug/L | 1/6 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Arsenic | 24 UG/L | 431/458 | SYR4 | 2012–2019 |
| Nitrate | 8136 UG/L | 116/116 | SYR4 | 2012–2019 |
| TTHM | 58 UG/L | 116/127 | SYR4 | 2012–2019 |
| Bromodichloromethane | 6 UG/L | 107/127 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 60 UG/L | 101/116 | SYR4 | 2012–2019 |
| Bromoform | 18 UG/L | 90/127 | SYR4 | 2012–2019 |
| Dibromochloromethane | 8.2 UG/L | 88/127 | SYR4 | 2012–2019 |
| Chloroform | 56 UG/L | 84/127 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 5.9 UG/L | 72/116 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 29 UG/L | 67/116 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 29 UG/L | 63/116 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0050 mg/L | 32/32 | LCR | 2024 |
| Combined Uranium | 80.46 UG/L | 22/22 | SYR4 | 2012–2019 |
| Barium | 340 UG/L | 11/11 | SYR4 | 2012–2017 |
| Monochloroacetic acid | 2.1 UG/L | 6/116 | SYR4 | 2012–2019 |
| Fluoride | 130 UG/L | 5/11 | SYR4 | 2012–2017 |
| Nitrate-Nitrite | 5700 UG/L | 5/5 | SYR4 | 2017 |
| Monobromoacetic acid | 2.6 UG/L | 2/116 | SYR4 | 2012–2019 |
| Chromium | 3 UG/L | 1/11 | SYR4 | 2012–2017 |
| Gross Beta Particle Activity | 5.2 PCI/L | 1/2 | SYR4 | 2016 |
| Lead | 0.2000 UG/L | 1/11 | SYR4 | 2012–2017 |
63 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBenzeneBeryllium, TotalCHLOROBENZENECOPPER, FREECYANIDECadmiumCarbon tetrachlorideDICHLOROMETHANEETHYLENE DIBROMIDEEthylbenzeneHFPO-DALASSOMercuryNEtFOSAANFDHANMeFOSAANitritePFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFMBAPFMPAPFNAPFOAPFPeAPFPeSPFTAPFTrDAPFUnASeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
LATHROP