CORONA, CITY OF
CA · PWS ID CA3310037 · Community water system
111
contaminants tested
28
detected
168,575
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFPeA | 0.0061 ug/L | 4/54 | 2024 |
| PFBA | 0.0076 ug/L | 2/54 | 2024 |
| PFHxA | 0.0038 ug/L | 1/54 | 2024 |
| PFHxS | 0.0033 ug/L | 1/54 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 58760 UG/L | 15170/16616 | SYR4 | 2012–2019 |
| Fluoride | 4600 UG/L | 921/1192 | SYR4 | 2012–2019 |
| TTHM | 42 UG/L | 236/320 | SYR4 | 2012–2019 |
| Dibromochloromethane | 15 UG/L | 222/335 | SYR4 | 2012–2019 |
| Bromodichloromethane | 12 UG/L | 216/334 | SYR4 | 2012–2019 |
| Bromoform | 17 UG/L | 210/334 | SYR4 | 2012–2019 |
| Chloroform | 17 UG/L | 209/331 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 26 UG/L | 190/283 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 6.4 UG/L | 178/283 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 15 UG/L | 168/283 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.2 UG/L | 130/283 | SYR4 | 2012–2019 |
| Trichloroethylene | 1.9 UG/L | 88/268 | SYR4 | 2012–2019 |
| Combined Uranium | 58.11 UG/L | 78/99 | SYR4 | 2012–2019 |
| Arsenic | 18 UG/L | 70/200 | SYR4 | 2012–2019 |
| Barium | 460 UG/L | 52/200 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 8.1 UG/L | 34/283 | SYR4 | 2012–2019 |
| Selenium | 35 UG/L | 28/200 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0060 mg/L | 25/25 | LCR | 2023 |
| Tetrachloroethylene | 1 UG/L | 24/234 | SYR4 | 2012–2019 |
| lithium | 55.1 ug/L | 24/54 | UCMR-5 | 2024 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0500 UG/L | 21/251 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 2.1 UG/L | 18/283 | SYR4 | 2012–2019 |
| Chromium | 4.9 UG/L | 11/200 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 16000 UG/L | 5/6 | SYR4 | 2015–2019 |
83 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-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 epoxideHexachlorocyclopentadieneLASSOLeadMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
CORONA