RAINBOW WATER DISTRICT
OR · PWS ID OR4100839 · Community water system
104
contaminants tested
12
detected
6,300
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOS | 0.0094 ug/L | 4/10 | 2025 |
| PFOA | 0.0042 ug/L | 2/10 | 2025 |
| PFBS | 0.0038 ug/L | 1/10 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 792 UG/L | 55/60 | SYR4 | 2012–2018 |
| Nitrate | 2800 UG/L | 40/56 | SYR4 | 2012–2019 |
| Lead | 8 UG/L | 29/60 | SYR4 | 2012–2018 |
| LEAD SUMMARY | 0.0150 mg/L | 18/18 | LCR | 2024 |
| TTHM | 3.8 UG/L | 9/15 | SYR4 | 2013–2019 |
| Arsenic | 5 UG/L | 5/7 | SYR4 | 2012–2017 |
| Nitrate-Nitrite | 1700 UG/L | 2/4 | SYR4 | 2012–2017 |
| Barium | 2 UG/L | 1/4 | SYR4 | 2012–2017 |
| lithium | 9.3 ug/L | 1/10 | UCMR-5 | 2025 |
92 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumCombined Radium (-226 and -228)Combined UraniumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon and UGross Beta Particle ActivityHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene