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Tap water quality report

Corvallis, City of

EPA monitoring tested this supplier for 91 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

91
contaminants tested
7
detected
61,468
people served
0
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Surface water
Ownership
Local government
Counties served
Benton

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.

0
health-based violations
34
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2020-10-01 → 2020-10-31
MR Monitoring Resolved 2020-10-01 → 2020-10-31
MR Monitoring Resolved 2020-10-01 → 2020-10-31
MR Monitoring Resolved 2020-10-01 → 2020-10-31
MR Monitoring Resolved 2020-10-01 → 2020-10-31
MR Monitoring Resolved 2020-10-01 → 2020-10-31
MR Monitoring Resolved 2020-07-01
MR Monitoring Resolved 2020-07-01
MON Monitoring Resolved 2020-06-01 → 2020-06-30
MR Monitoring Resolved 2019-12-01 → 2019-12-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
35.2 µg/L 44%
of the EPA limit 80 µg/L
 138/138 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
30.5 µg/L 51%
of the EPA limit 60 µg/L
 138/138 SYR4 2012–2019
Copper
716 µg/L 55%
of the EPA limit 1300 µg/L
 73/73 SYR4 2014–2017
Lead
51 µg/L 340%
of the EPA limit, in the worst sample — 15 µg/L
 28/73 SYR4 2014–2017
Lead
0.0014 mg/L 9.3%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2023
Nitrate
400 µg/L 4%
of the EPA limit 10000 µg/L
 10/32 SYR4 2012–2019
Fluoride
854 µg/L 21%
of the EPA limit 4000 µg/L
 6/6 SYR4 2013–2017
84 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-PF3ONSAdonaAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CORVALLIS, CITY OF
Phone
541-754-1758
Email
tom.hubbard@corvallisoregon.gov

Frequently asked questions about Corvallis, City of

Is Corvallis, City of tap water safe to drink?

EPA monitoring detected 7 contaminants in Corvallis, 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 Corvallis, City of's water?

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

How many people does Corvallis, City of serve?

Corvallis, City of reports serving 61,468 people in Oregon, per its EPA record.

Has Corvallis, City of had any water quality violations?

The EPA has 34 violations on file for Corvallis, City of, of which 0 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.