RIVERSIDE, CITY OF
CA · PWS ID CA3310031 · Community water system
115
contaminants tested
28
detected
298,398
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFPeA | 0.0067 ug/L | 4/4 | 2023 |
| PFHxA | 0.0041 ug/L | 2/4 | 2023 |
| PFOS | 0.0040 ug/L | 1/4 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 17000 UG/L | 8840/8850 | SYR4 | 2012–2019 |
| Combined Uranium | 77.48 UG/L | 3299/3342 | SYR4 | 2012–2019 |
| TTHM | 36 UG/L | 1288/1662 | SYR4 | 2012–2019 |
| Fluoride | 1300 UG/L | 801/801 | SYR4 | 2012–2019 |
| Arsenic | 20 UG/L | 688/1267 | SYR4 | 2012–2019 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.5700 UG/L | 607/3849 | SYR4 | 2012–2019 |
| Bromoform | 9.7 UG/L | 572/1517 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.6 UG/L | 572/1536 | SYR4 | 2012–2019 |
| Trichloroethylene | 27 UG/L | 550/3279 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1000000 UG/L | 184/185 | SYR4 | 2013–2018 |
| Bromodichloromethane | 16 UG/L | 87/1390 | SYR4 | 2012–2019 |
| 1,1-Dichloroethylene | 2.7 UG/L | 86/2881 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0070 mg/L | 60/60 | LCR | 2025 |
| Gross Beta Particle Activity | 15 PCI/L | 41/47 | SYR4 | 2012–2019 |
| Chromium | 14 UG/L | 30/1206 | SYR4 | 2012–2019 |
| Barium | 70 UG/L | 29/799 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 1.2 UG/L | 22/3248 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 1.7 UG/L | 20/404 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 4.5 PCI/L | 10/30 | SYR4 | 2014–2019 |
| DICHLOROMETHANE | 2.4 UG/L | 10/2881 | SYR4 | 2012–2019 |
| Chloroform | 12 UG/L | 5/1355 | SYR4 | 2012–2019 |
| Picloram | 5.1 UG/L | 3/335 | SYR4 | 2012–2019 |
| COPPER, FREE | 140 UG/L | 2/614 | SYR4 | 2012–2019 |
| Lead | 8.5 UG/L | 2/793 | SYR4 | 2012–2019 |
| lithium | 9.1 ug/L | 2/4 | UCMR-5 | 2023 |
87 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,2,4-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, TotalBromateCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChloriteDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDichloroacetic AcidDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFPeSPFTAPFTrDAPFUnAPentachlorophenolSeleniumSimazineStyreneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
RIVERSIDE