92.9
County avg score
10
Cities ranked
100%
A or B grade
0%
D or F grade
2
Health violations
0
PFAS detected
Grade Distribution
How Kauai cities scored
A
10
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Hawaii average
▲ 1.3 pts above state average
City Map
Water quality across Kauai
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Kauai
County context
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Kauai
Industrial polluters nearby
Facilities reporting the most surface-water releases in Kauai, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
PORT ALLEN GENERATING STATION ELEELE, HI96705 | — | — |
US NAVY PACIFIC MISSILE RANGE FACILITY KEKAHA, HI96752 | — | — |
KAPAIA POWER STATION LIHUE, HI96766 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 10 cities in Kauai
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Kilauea (Dow) | A+ | 100 | 3K | 1 | ||
| 2 | Haena-Wainiha | A+ | 96.9 | 833 | 2 | ||
| 3 | Kekaha (Dow) | A | 94.5 | 6K | 9 | Unresolved | |
| 4 | Kaumakani | A | 93.8 | 1K | 10 | Health Unresolved | |
| 5 | Lihue-Kapaa | A | 93.3 | 35K | 10 | Unresolved | |
| 6 | Princeville (Dho) | A | 92.7 | 7K | 2 | Unresolved | |
| 7 | Hanalei (Dow) | A- | 89.7 | 500 | 2 | Unresolved | |
| 8 | Pmrf Housing (Dho) | A- | 89.6 | 1K | 2 | Health Unresolved | |
| 9 | Hanapepe-Eleele (Dow) | A- | 89.5 | 6K | 4 | Unresolved | |
| 10 | Kalaheo | A- | 89 | 13K | 3 | Unresolved |