GOLDEN STATE WC - WEST ORANGE COUNTY
CA · PWS ID CA3010022 · Community water system
113
contaminants tested
29
detected
114,379
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0093 ug/L | 9/24 | 2025 |
| PFOS | 0.0160 ug/L | 9/24 | 2025 |
| PFOA | 0.0081 ug/L | 5/24 | 2025 |
| PFHxA | 0.0034 ug/L | 4/24 | 2025 |
| PFPeA | 0.0036 ug/L | 3/24 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 6200 UG/L | 532/1038 | SYR4 | 2012–2019 |
| TTHM | 62 UG/L | 175/250 | SYR4 | 2012–2019 |
| Dibromochloromethane | 20 UG/L | 134/250 | SYR4 | 2012–2019 |
| Bromoform | 8.2 UG/L | 121/250 | SYR4 | 2012–2019 |
| Bromodichloromethane | 20 UG/L | 108/250 | SYR4 | 2012–2019 |
| Chloroform | 23 UG/L | 99/250 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 45 UG/L | 87/247 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 900000 UG/L | 76/133 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 5.2 UG/L | 74/247 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 11 UG/L | 72/247 | SYR4 | 2012–2019 |
| Fluoride | 590 UG/L | 54/54 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 8.5 UG/L | 48/247 | SYR4 | 2012–2019 |
| Arsenic | 4.6 UG/L | 35/65 | SYR4 | 2012–2019 |
| Combined Uranium | 23.691 UG/L | 32/32 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0050 mg/L | 29/29 | LCR | 2025 |
| Monochloroacetic acid | 4.7 UG/L | 25/247 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 2.2 UG/L | 13/247 | SYR4 | 2012–2019 |
| Trichloroethylene | 0.7000 UG/L | 13/220 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 0.5560 PCI/L | 3/3 | SYR4 | 2012–2013 |
| lithium | 34.2938 ug/L | 3/24 | UCMR-5 | 2025 |
| Barium | 104 UG/L | 2/65 | SYR4 | 2012–2019 |
| Chromium | 2.2 UG/L | 1/57 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 2.84 PCI/L | 1/1 | SYR4 | 2019 |
| Selenium | 2.9 UG/L | 1/67 | SYR4 | 2012–2019 |
84 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, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECOPPER, FREECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOLeadMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene