CALIFORNIA WATER SERVICE CO. - DOMINGUEZ
CA · PWS ID CA1910033 · Community water system
113
contaminants tested
27
detected
143,996
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0035 ug/L | 2/19 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Fluoride | 970 UG/L | 617/619 | SYR4 | 2012–2019 |
| Bromodichloromethane | 32.71 UG/L | 397/415 | SYR4 | 2012–2019 |
| Chloroform | 80.33 UG/L | 397/415 | SYR4 | 2012–2019 |
| Dibromochloromethane | 47.16 UG/L | 397/415 | SYR4 | 2012–2019 |
| TTHM | 129.6 UG/L | 397/415 | SYR4 | 2012–2019 |
| Bromoform | 58.46 UG/L | 388/415 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 27 UG/L | 244/246 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 46 UG/L | 244/246 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 13 UG/L | 241/246 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 16 UG/L | 227/246 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0060 mg/L | 47/47 | LCR | 2023 |
| Nitrate | 435 UG/L | 20/198 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 38 UG/L | 14/246 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 2.1 UG/L | 10/246 | SYR4 | 2012–2019 |
| Trichloroethylene | 4.62 UG/L | 10/254 | SYR4 | 2012–2019 |
| DICHLOROMETHANE | 3.95 UG/L | 7/254 | SYR4 | 2012–2019 |
| lithium | 64.7 ug/L | 6/19 | UCMR-5 | 2025 |
| Barium | 180 UG/L | 5/35 | SYR4 | 2012–2019 |
| Selenium | 41 UG/L | 3/34 | SYR4 | 2012–2019 |
| Antimony, Total | 0.0590 UG/L | 1/35 | SYR4 | 2012–2019 |
| Arsenic | 3.604 UG/L | 1/35 | SYR4 | 2012–2019 |
| Beryllium, Total | 0.0030 UG/L | 1/35 | SYR4 | 2012–2019 |
| COPPER, FREE | 15.114 UG/L | 1/44 | SYR4 | 2012–2019 |
| Cadmium | 0.0140 UG/L | 1/35 | SYR4 | 2012–2019 |
| Chromium | 1.663 UG/L | 1/35 | SYR4 | 2012–2019 |
| Lead | 0.0260 UG/L | 1/34 | SYR4 | 2012–2019 |
86 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-PF3ONSADONAAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBromateCHLOROBENZENECYANIDECarbofuranCarbon tetrachlorideChlordaneCombined UraniumDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitrate-NitriteNitriteOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene