NORCO, CITY OF
CA · PWS ID CA3310025 · Community water system
112
contaminants tested
27
detected
25,068
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0138 ug/L | 6/14 | 2024 |
| PFHxA | 0.0073 ug/L | 5/14 | 2024 |
| PFPeA | 0.0119 ug/L | 5/14 | 2024 |
| PFBS | 0.0122 ug/L | 4/14 | 2024 |
| PFOS | 0.0314 ug/L | 4/14 | 2024 |
| PFBA | 0.0179 ug/L | 3/14 | 2024 |
| PFOA | 0.0137 ug/L | 3/14 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 15368 UG/L | 846/1478 | SYR4 | 2012–2019 |
| Fluoride | 4100 UG/L | 665/686 | SYR4 | 2012–2019 |
| Arsenic | 25 UG/L | 305/600 | SYR4 | 2012–2019 |
| TTHM | 88.9 UG/L | 134/143 | SYR4 | 2012–2019 |
| Dibromochloromethane | 16.9 UG/L | 129/143 | SYR4 | 2012–2019 |
| Bromoform | 69.1 UG/L | 128/143 | SYR4 | 2012–2019 |
| Bromodichloromethane | 12.2 UG/L | 90/143 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 10.6 UG/L | 89/148 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 11.8 UG/L | 89/148 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0154 mg/L | 36/36 | LCR | 2024 |
| Chloroform | 7.2 UG/L | 34/143 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 3.9 UG/L | 20/148 | SYR4 | 2012–2019 |
| Benzene | 0.9700 UG/L | 13/30 | SYR4 | 2012–2018 |
| Combined Uranium | 19.37 UG/L | 9/12 | SYR4 | 2012–2017 |
| lithium | 35.9 ug/L | 8/14 | UCMR-5 | 2024 |
| Barium | 170 UG/L | 3/9 | SYR4 | 2012–2017 |
| Nitrate-Nitrite | 2700 UG/L | 3/6 | SYR4 | 2014–2017 |
| Trichloroacetic Acid | 2.6 UG/L | 3/148 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 4.6 UG/L | 2/148 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 12 PCI/L | 1/4 | SYR4 | 2012 |
85 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-GAMMABenzo(a)pyreneBeryllium, TotalCHLOROBENZENECOPPER, FREECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOLeadMercuryMethoxychlorMonobromoacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
NORCO