Rio Grande Water Quality Report
3 cities ranked · Average grade: C- · Colorado
Avg Score
57.6
Cities Ranked
3
Health Violations
3
PFAS Detected
0
57.6
County avg score
3
Cities ranked
33%
A or B grade
67%
D or F grade
3
Health violations
0
PFAS detected
Grade Distribution
How Rio Grande cities scored
A
0
0%
Excellent
B
1
33%
Good
C
0
0%
Fair
D
2
67%
Poor
F
0
0%
Failing
Comparison
County vs Colorado average
▼ 8.5 pts below state average
City Map
Water quality across Rio Grande
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Rio Grande
Best cities
Worst cities
County context
1
Superfund site in Rio Grande
Superfund sites
Superfund sites in Rio Grande
Superfund sites nearby
Federally tracked hazardous-waste sites within Rio Grande on the EPA National Priorities List.
- SUMMITVILLE MINE
Source: EPA Superfund National Priorities List
Full Rankings
All 3 cities in Rio Grande
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Del Norte | B | 75.9 | 1K | 96 | Health Unresolved | |
| 2 | Monte Vista | D+ | 51 | 5K | 679 | Health Unresolved | |
| 3 | South Fork | D | 46 | 1K | 255 | Health Unresolved |