FLORIN COUNTY WATER DISTRICT
CA · PWS ID CA3410033 · Community water system
107
contaminants tested
16
detected
7,831
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHpA | 0.0099 ug/L | 10/19 | 2025 |
| PFHxA | 0.0092 ug/L | 7/19 | 2025 |
| PFOA | 0.0118 ug/L | 7/19 | 2025 |
| PFPeA | 0.0067 ug/L | 6/19 | 2025 |
| PFOS | 0.0066 ug/L | 3/19 | 2025 |
| PFHxS | 0.0055 ug/L | 1/19 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 5876 UG/L | 226/226 | SYR4 | 2012–2019 |
| Arsenic | 6.2 UG/L | 18/22 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0025 mg/L | 16/16 | LCR | 2022 |
| Nitrate-Nitrite | 4500 UG/L | 7/7 | SYR4 | 2016–2019 |
| Trichloroethylene | 0.6300 UG/L | 4/37 | SYR4 | 2012–2019 |
| Combined Uranium | 4.023 UG/L | 2/8 | SYR4 | 2012–2019 |
| Fluoride | 130 UG/L | 2/22 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 0.5900 UG/L | 2/37 | SYR4 | 2012–2019 |
| Asbestos | 0.2000 MFL | 1/11 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 2.78 PCI/L | 1/1 | SYR4 | 2019 |
91 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABariumBenzeneBenzo(a)pyreneBeryllium, TotalBromateBromodichloromethaneBromoformCHLOROBENZENECOPPER, FREECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChloroformChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDibromochloromethaneDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOLeadMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTTHMThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene