Washington Water Quality Report
9 cities ranked · Average grade: C · Oregon
Avg Score
62.7
Cities Ranked
9
Health Violations
8
PFAS Detected
1
62.7
County avg score
9
Cities ranked
44%
A or B grade
44%
D or F grade
8
Health violations
1
PFAS detected
Grade Distribution
How Washington cities scored
A
1
11%
Excellent
B
3
33%
Good
C
1
11%
Fair
D
1
11%
Poor
F
3
33%
Failing
Comparison
County vs Oregon average
▲ 0.4 pts above state average
City Map
Water quality across Washington
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Washington
Best cities
Worst cities
County context
63.4%
of residents on fluoridated water (CDC, 2020)
14
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Washington
Industrial polluters nearby
Facilities reporting the most surface-water releases in Washington, 2023.
Total reported releases to surface water: 14 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
INTEL CORP-ALOHA CAMPUS ALOHA, OR97007 | Copper compounds | 4 |
VALMONT COATINGS - PACIFIC STATES GALVANIZING TUALATIN, OR97062 | Zinc compounds | 4 |
INTEL CORP-RONLER ACRES CAMPUS HILLSBORO, OR97124 | Copper And Copper Compounds | 3 |
TEKTRONIX INC BEAVERTON, OR97005 | Lead | 2 |
TTM TECHNOLOGIES N.A. LLC FOREST GROVE, OR97116 | Copper And Copper Compounds | 0 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 9 cities in Washington
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Tualatin | A | 92.6 | 28K | 8 | Unresolved | |
| 2 | Forest Grove | B+ | 83 | 27K | 41 | Health Unresolved | |
| 3 | Banks | B+ | 81.2 | 2K | 186 | Health Unresolved | |
| 4 | Sherwood | B- | 72 | 20K | 226 | Health Unresolved | |
| 5 | Tigard | C | 64.2 | 63K | 103 | Health Unresolved | |
| 6 | Gaston | D | 45 | 3K | 268 | Health Unresolved | |
| 7 | Cornelius | F | 43.8 | 15K | 186 | Health Unresolved | |
| 8 | Hillsboro | F | 41.8 | 95K | 317 | Health Unresolved | |
| 9 | Beaverton | F | 40.7 | 317K | 208 | Health Unresolved |