Nez Perce Water Quality Report
2 cities ranked · Average grade: D · Idaho
Avg Score
47.1
Cities Ranked
2
Health Violations
2
PFAS Detected
1
47.1
County avg score
2
Cities ranked
0%
A or B grade
100%
D or F grade
2
Health violations
1
PFAS detected
Grade Distribution
How Nez Perce cities scored
A
0
0%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
1
50%
Poor
F
1
50%
Failing
Comparison
County vs Idaho average
▼ 21.1 pts below state average
City Map
Water quality across Nez Perce
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Nez Perce
Best cities
Worst cities
County context
93.0%
of residents on fluoridated water (CDC, 2020)
66,823
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Nez Perce
Industrial polluters nearby
Facilities reporting the most surface-water releases in Nez Perce, 2023.
Total reported releases to surface water: 66,823 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CLEARWATER PAPER CORP-PPD & CPD IDAHO LEWISTON, ID83501 | Methanol | 66,488 |
FEDERAL CARTRIDGE CO-CCI LEWISTON, ID83501 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 333 |
FEDERAL CARTRIDGE CO-SPEER LEWISTON, ID83501 | Lead | 3 |
FEDERAL CARTRIDGE CO-SOUTHPORT LEWISTON, ID83501 | — | — |
COLEMAN OIL CO LEWISTON, ID83501 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings