THE DALLES, CITY OF
OR · PWS ID OR4100869 · Community water system
103
contaminants tested
11
detected
13,010
people served
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 40 UG/L | 141/141 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 30 UG/L | 140/141 | SYR4 | 2012–2019 |
| COPPER, FREE | 220 UG/L | 67/97 | SYR4 | 2012–2018 |
| LEAD SUMMARY | 0.0050 mg/L | 30/30 | LCR | 2026 |
| Fluoride | 810 UG/L | 28/28 | SYR4 | 2012–2019 |
| Lead | 8.1 UG/L | 22/100 | SYR4 | 2012–2019 |
| Barium | 41 UG/L | 14/29 | SYR4 | 2012–2019 |
| lithium | 42.1 ug/L | 6/10 | UCMR-5 | 2024 |
| Nitrate | 160 UG/L | 2/60 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 160 UG/L | 1/29 | SYR4 | 2012–2019 |
| Picloram | 0.1000 UG/L | 1/27 | SYR4 | 2012–2018 |
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, TotalArsenicAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumCombined Radium (-226 and -228)Combined UraniumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon and UHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene