Clackamas Water Quality Report
17 cities ranked · Average grade: D · Oregon
Avg Score
48.6
Cities Ranked
17
Health Violations
17
PFAS Detected
5
48.6
County avg score
17
Cities ranked
6%
A or B grade
82%
D or F grade
17
Health violations
5
PFAS detected
Grade Distribution
How Clackamas cities scored
A
0
0%
Excellent
B
1
6%
Good
C
2
12%
Fair
D
7
41%
Poor
F
7
41%
Failing
Comparison
County vs Oregon average
▼ 13.7 pts below state average
City Map
Water quality across Clackamas
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Clackamas
County context
1
Superfund site in Clackamas
0.0%
of residents on fluoridated water (CDC, 2020)
52
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Clackamas
Industrial polluters nearby
Facilities reporting the most surface-water releases in Clackamas, 2023.
Total reported releases to surface water: 52 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
PCC STRUCTURALS LPC TITANIUM BUSINESS OPS MILWAUKIE, OR97222 | Nickel | 36 |
PCC STRUCTURALS INC DEER CREEK ANNEX MILWAUKIE, OR97222 | Nickel | 9 |
ASC SUNSTONE CIRCUITS MULINO, OR97042 | Copper And Copper Compounds | 2 |
ORCHID ORTHOPEDIC SOLUTIONS OREGON INC OREGON CITY, OR97045 | Chromium | 2 |
PCC STRUCTURALS INC. LSBS PORTLAND, OR97206 | Nickel | 1 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Clackamas
Superfund sites nearby
Federally tracked hazardous-waste sites within Clackamas on the EPA National Priorities List.
- NORTHWEST PIPE CASING HALL PROCESS COMPANY
Source: EPA Superfund National Priorities List
Full Rankings
All 17 cities in Clackamas
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Rhododendron | B | 75.5 | 980 | 166 | Health Unresolved | |
| 2 | Wilsonville | C+ | 68.3 | 26K | 184 | Health Unresolved | |
| 3 | Gladstone | C | 60 | 12K | 49 | Health Unresolved | |
| 4 | Welches | D+ | 53 | 2K | 395 | Health Unresolved | |
| 5 | Colton | D+ | 51 | 2K | 326 | Health Unresolved | |
| 6 | Boring | D+ | 50 | 4K | 723 | Health Unresolved | |
| 7 | Oregon City | D | 49 | 34K | 106 | Health Unresolved | |
| 8 | Clackamas | D | 47.4 | 51K | 532 | Health Unresolved | |
| 9 | Canby | D | 47.1 | 19K | 274 | Health Unresolved | |
| 10 | Lake Oswego | D | 45.4 | 48K | 509 | Health Unresolved | |
| 11 | Sandy | F | 44 | 15K | 1478 | Health Unresolved | |
| 12 | Molalla | F | 42.5 | 12K | 794 | Health Unresolved | |
| 13 | Estacada | F | 42.5 | 6K | 635 | Health Unresolved | |
| 14 | West Linn | F | 41 | 29K | 380 | Health Unresolved | |
| 15 | Happy Valley | F | 40.5 | 50K | 298 | Health PFAS Unresolved | |
| 16 | Milwaukie | F | 40 | 51K | 380 | Health PFAS Unresolved | |
| 17 | Mulino | F | 29 | 790 | 217 | Health Lead Unresolved |