Colusa Water Quality Report
5 cities ranked · Average grade: B · California
Avg Score
76.4
Cities Ranked
5
Health Violations
5
PFAS Detected
2
76.4
County avg score
5
Cities ranked
60%
A or B grade
20%
D or F grade
5
Health violations
2
PFAS detected
Grade Distribution
How Colusa cities scored
A
3
60%
Excellent
B
0
0%
Good
C
1
20%
Fair
D
1
20%
Poor
F
0
0%
Failing
Comparison
County vs California average
▼ 0.1 pts below state average
City Map
Water quality across Colusa
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Colusa
Best cities
Worst cities
County context
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Colusa
Industrial polluters nearby
Facilities reporting the most surface-water releases in Colusa, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CONRAD WOOD PRESERVING CO ARBUCKLE, CA95912 | — | — |
LATHAM POOL PRODUCTS INC-CA WILLIAMS, CA95987 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings