CITY OF SANTA ANA
CA · PWS ID CA3010038 · Community water system
85
contaminants tested
25
detected
310,539
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0084 ug/L | 9/26 | 2025 |
| PFOA | 0.0089 ug/L | 8/26 | 2025 |
| PFOS | 0.0142 ug/L | 7/26 | 2025 |
| PFPeA | 0.0059 ug/L | 5/26 | 2025 |
| PFHxA | 0.0040 ug/L | 4/26 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 9860 UG/L | 1362/1378 | SYR4 | 2012–2019 |
| TTHM | 52.8 UG/L | 237/260 | SYR4 | 2012–2019 |
| Dibromochloromethane | 16.9 UG/L | 235/260 | SYR4 | 2012–2019 |
| Bromoform | 13.4 UG/L | 227/260 | SYR4 | 2012–2019 |
| Bromodichloromethane | 16.7 UG/L | 201/260 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 23.5 UG/L | 183/260 | SYR4 | 2012–2019 |
| Chloroform | 22.7 UG/L | 179/260 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 13.9 UG/L | 165/260 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 5.5 UG/L | 159/260 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 980000 UG/L | 145/152 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 7.7 UG/L | 117/260 | SYR4 | 2012–2019 |
| Fluoride | 800 UG/L | 63/63 | SYR4 | 2012–2019 |
| Combined Uranium | 12.1882 UG/L | 46/48 | SYR4 | 2014–2019 |
| LEAD SUMMARY | 0.0050 mg/L | 19/19 | LCR | 2024 |
| Arsenic | 3.5 UG/L | 11/82 | SYR4 | 2012–2019 |
| Barium | 169 UG/L | 10/71 | SYR4 | 2012–2019 |
| lithium | 38.456 ug/L | 8/26 | UCMR-5 | 2025 |
| Monochloroacetic acid | 3.1 UG/L | 6/260 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 0.8000 UG/L | 4/247 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 3.2 UG/L | 3/260 | SYR4 | 2012–2019 |
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBenzeneBeryllium, TotalCHLOROBENZENECOPPER, FREECYANIDECadmiumCarbon tetrachlorideChromiumDICHLOROMETHANEETHYLENE DIBROMIDEEthylbenzeneHFPO-DALASSOLeadMercuryNEtFOSAANFDHANMeFOSAANitritePFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFPeSPFTAPFTrDAPFUnASeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
SANTA ANA