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 C.

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
State average grade
C
75/100
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.

ALBANY
C 57,997
BEAVERTON
C 312,645
BEND
F 77,704
CORVALLIS
C 61,468
EUGENE
B 176,000
GRESHAM
B 73,932
HILLSBORO
C 92,632
MEDFORD
B 106,068
PORTLAND
C 731,643
Portland
D 654,000
SALEM
C 199,820
SPRINGFIELD
C 62,100
TIGARD
B 62,500

Grade distribution

A
0 (0%)
B
10 (67%)
C
3 (20%)
D
2 (13%)
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 81 B
#2 GRESHAM, CITY OF GRESHAM 73,932 81 B
#3 MEDFORD WATER COMMISSION MEDFORD 106,068 81 B
#4 TIGARD, CITY OF TIGARD 62,500 80 B
#5 SALEM PUBLIC WORKS SALEM 199,820 79 B
#6 ALBANY, CITY OF ALBANY 57,997 78 B
#7 CORVALLIS, CITY OF CORVALLIS 61,468 78 B
#8 BEAVERTON, CITY OF BEAVERTON 88,045 77 B
#9 TUALATIN VALLEY WATER DISTRICT BEAVERTON 224,600 77 B
#10 HILLSBORO, CITY OF HILLSBORO 92,632 77 B
#11 ROCKWOOD PUD PORTLAND 65,443 74 C
#12 PORTLAND WATER BUREAU PORTLAND 666,200 72 C
#13 SPRINGFIELD UTILITY BOARD SPRINGFIELD 62,100 72 C
#14 Portland Water Authority Portland 654,000 63 D
#15 BEND, CITY OF BEND 77,704 58 D