Tap WaterIndex

← Oregon

Tap water quality report

Dallas, City of

EPA monitoring tested this supplier for 100 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

100
contaminants tested
9
detected
17,911
people served
9
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Surface water
Ownership
Local government
Counties served
Polk

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

9
health-based violations
55
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2021-01-01 → 2021-01-31
TT Health-based Resolved 2021-01-01 → 2021-01-31
TT Health-based Resolved 2021-01-01 → 2021-01-31
TT Health-based Resolved 2021-01-01 → 2021-01-31
TT Health-based Resolved 2021-01-01 → 2021-01-31
TT Health-based Resolved 2021-01-01 → 2021-01-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
TT Health-based Resolved 1994-10-01 → 1994-10-31
Other Monitoring Resolved 2025-07-01

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
146.5 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 473 µg/L
356/368 SYR4 2012–2018
Lead
32.8 µg/L 219%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 240 µg/L
157/368 SYR4 2012–2018
TTHM
59.21 µg/L 74%
of the EPA limit 80 µg/L
worst single sample: 63.1 µg/L
107/107 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
38.85 µg/L 65%
of the EPA limit 60 µg/L
worst single sample: 49.6 µg/L
103/107 SYR4 2012–2019
Lead
0.0043 mg/L 29%
of the EPA limit 0.0150 mg/L
 25/25 LCR 2024
Nitrate
120 µg/L 1.2%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Nitrate-Nitrite
108 µg/L 1.1%
of the EPA limit 10000 µg/L
worst single sample: 110 µg/L
2/2 SYR4 2012–2015
Barium
1 µg/L 0.1%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
 1/2 SYR4 2012–2015
91 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DALLAS, CITY OF
Phone
503-623-3446
Email
[email protected]

Frequently asked questions about Dallas, City of

Is Dallas, City of tap water safe to drink?

EPA monitoring detected 9 contaminants in Dallas, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Dallas, City of's water?

EPA monitoring detected Copper, Lead, TTHM, Total Haloacetic Acids (HAA5), Lead, and others. The full list with the level and data source for each is above.

How many people does Dallas, City of serve?

Dallas, City of reports serving 17,911 people in Oregon, per its EPA record.

Has Dallas, City of had any water quality violations?

The EPA has 55 violations on file for Dallas, City of, of which 9 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.