Yamhill Water Quality Report
9 cities ranked · Average grade: C · Oregon
Avg Score
64
Cities Ranked
9
Health Violations
9
PFAS Detected
2
64
County avg score
9
Cities ranked
44%
A or B grade
44%
D or F grade
9
Health violations
2
PFAS detected
Grade Distribution
How Yamhill cities scored
A
2
22%
Excellent
B
2
22%
Good
C
1
11%
Fair
D
2
22%
Poor
F
2
22%
Failing
Comparison
County vs Oregon average
▲ 1.7 pts above state average
City Map
Water quality across Yamhill
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Yamhill
Worst cities
County context
1
Superfund site in Yamhill
23.2%
of residents on fluoridated water (CDC, 2020)
39
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Yamhill
Industrial polluters nearby
Facilities reporting the most surface-water releases in Yamhill, 2023.
Total reported releases to surface water: 39 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CASCADE STEEL ROLLING MILLS INC MCMINNVILLE, OR97128 | Copper And Copper Compounds | 38 |
STELLA-JONES CORP SHERIDAN, OR97378 | Dioxin and dioxin-like compounds | 1 |
M&W FIBERGLASS INC DUNDEE, OR97115 | — | — |
KNIFE RIVER DAYTON ASPHALT DAYTON, OR97114 | — | — |
TMS INTERNATIONAL LLC MCMINNVILLE, OR97128 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Yamhill
Superfund sites nearby
Federally tracked hazardous-waste sites within Yamhill on the EPA National Priorities List.
- TAYLOR LUMBER AND TREATING
Source: EPA Superfund National Priorities List
Full Rankings
All 9 cities in Yamhill
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Willamina | A- | 88.6 | 2K | 82 | Health Unresolved | |
| 2 | Dayton | A- | 87.6 | 3K | 95 | Health Unresolved | |
| 3 | Mcminnville | B+ | 81 | 35K | 83 | Health Unresolved | |
| 4 | Carlton | B- | 73.7 | 2K | 133 | Health Unresolved | |
| 5 | Lafayette | C- | 59.5 | 4K | 219 | Health Unresolved | |
| 6 | Dundee | D+ | 51.8 | 3K | 322 | Health PFAS Unresolved | |
| 7 | Sheridan | D | 49.5 | 8K | 474 | Health Unresolved | |
| 8 | Newberg | F | 42.5 | 35K | 3984 | Health Unresolved | |
| 9 | Yamhill | F | 42 | 2K | 326 | Health Unresolved |