Washington Water Quality Report
15 cities ranked · Average grade: A- · Minnesota
Avg Score
87.8
Cities Ranked
15
Health Violations
6
PFAS Detected
11
87.8
County avg score
15
Cities ranked
93%
A or B grade
0%
D or F grade
6
Health violations
11
PFAS detected
Grade Distribution
How Washington cities scored
A
11
73%
Excellent
B
3
20%
Good
C
1
7%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Minnesota average
▲ 0.3 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
County context
2
Superfund sites in Washington
97.9%
of residents on fluoridated water (CDC, 2020)
700,754
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: 700,754 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
3M CHEMICAL OPERATIONS' COTTAGE GROVE FACILITY COTTAGE GROVE, MN55016 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 579,662 |
ST PAUL PARK REFINING CO LLC SAINT PAUL PARK, MN55071 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 120,920 |
XCEL ENERGY A. S. KING GENERATING PLANT BAYPORT, MN55003 | Barium And Barium Compounds | 173 |
ANDERSEN CORP BAYPORT, MN55003 | — | — |
LSP - COTTAGE GROVE LP COTTAGE GROVE, MN55016 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Washington
Superfund sites nearby
Federally tracked hazardous-waste sites within Washington on the EPA National Priorities List.
- BAYTOWN TOWNSHIP GROUND WATER PLUME
- OAKDALE DUMP
Source: EPA Superfund National Priorities List
Full Rankings
All 15 cities in Washington
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Hugo | A+ | 97.7 | 12K | 0 | Zero violations | |
| 2 | Lakeland | A+ | 97.1 | 4K | 1 | ||
| 3 | Birchwood | A | 94.4 | 864 | 8 | Unresolved | |
| 4 | Oak Park Heights | A | 93.2 | 5K | 5 | Health Unresolved | |
| 5 | Bayport | A | 93.1 | 3K | 13 | Health Unresolved | |
| 6 | Mahtomedi | A | 91.8 | 8K | 3 | Unresolved | |
| 7 | Forest Lake | A | 91.6 | 12K | 6 | Unresolved | |
| 8 | Willernie | A- | 89 | 525 | 11 | Unresolved | |
| 9 | Newport | A- | 87.1 | 4K | 3 | PFAS Unresolved | |
| 10 | Cottage Grove | A- | 86.1 | 40K | 14 | Health Unresolved | |
| 11 | St. Paul Park | A- | 85.3 | 5K | 2 | Unresolved | |
| 12 | Oakdale | B+ | 83 | 29K | 4 | Health Unresolved | |
| 13 | Woodbury | B+ | 80.5 | 83K | 5 | PFAS Unresolved | |
| 14 | Lake Elmo | B | 79.8 | 13K | 23 | Health PFAS Unresolved | |
| 15 | Stillwater | C+ | 67.6 | 21K | 34 | Health PFAS Unresolved |