Oregon Water Quality Ratings

TapWaterSafety has rated 15 public water systems in Oregon, serving a combined 2,668,509 residents. The statewide average grade is B.

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?

State average grade

B

82/100

Total utilities rated 15

Population served 2,668,509

Most recent test 2024

Top water quality concerns in Oregon

Haloacetic acids (HAA9) significantly above health guideline
Total trihalomethanes (TTHMs) significantly above health guideline
Haloacetic acids (HAA5) significantly above health guideline
Arsenic significantly above health guideline
Arsenic detected

Cities in Oregon

Browse tap water quality reports by city. Click any city to see its grade, what's in the water, and recommended filters.

Grade distribution

A

9 (60%)

B

3 (20%)

C

2 (13%)

D

1 (7%)

F

0 (0%)

All rated utilities in Oregon

Sorted by score, highest first. Click any utility to see the full grade card.

Rank	Utility	City	Population	Score	Grade
#1	EUGENE WATER & ELECTRIC BOARD	EUGENE	176,000	89	A
#2	GRESHAM, CITY OF	GRESHAM	73,932	89	A
#3	ALBANY, CITY OF	ALBANY	57,997	87	A
#4	CORVALLIS, CITY OF	CORVALLIS	61,468	87	A
#5	TUALATIN VALLEY WATER DISTRICT	BEAVERTON	224,600	87	A
#6	SALEM PUBLIC WORKS	SALEM	199,820	86	A
#7	ROCKWOOD PUD	PORTLAND	65,443	85	A
#8	SPRINGFIELD UTILITY BOARD	SPRINGFIELD	62,100	85	A
#9	HILLSBORO, CITY OF	HILLSBORO	92,632	85	A
#10	TIGARD, CITY OF	TIGARD	62,500	84	B
#11	BEAVERTON, CITY OF	BEAVERTON	88,045	83	B
#12	MEDFORD WATER COMMISSION	MEDFORD	106,068	82	B
#13	Portland Water Authority	Portland	654,000	73	C
#14	BEND, CITY OF	BEND	77,704	67	C
#15	PORTLAND WATER BUREAU	PORTLAND	666,200	64	D