Hamlin Water Quality Report
4 cities ranked · Average grade: A- · South Dakota
Avg Score
89.8
Cities Ranked
4
Health Violations
4
PFAS Detected
1
89.8
County avg score
4
Cities ranked
100%
A or B grade
0%
D or F grade
4
Health violations
1
PFAS detected
Grade Distribution
How Hamlin cities scored
A
4
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs South Dakota average
▲ 8.5 pts above state average
City Map
Water quality across Hamlin
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Hamlin
Best cities
Worst cities
County context
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Hamlin
Industrial polluters nearby
Facilities reporting the most surface-water releases in Hamlin, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
AGROPUR INC. LAKE NORDEN, SD57248 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 4 cities in Hamlin
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Lake Norden | A | 94.3 | 554 | 7 | Health Unresolved | |
| 2 | Watertown | A | 92.3 | 4K | 5 | Health Unresolved | |
| 3 | Castlewood | A- | 86.6 | 698 | 69 | Health Unresolved | |
| 4 | Estelline | A- | 86 | 749 | 86 | Health Unresolved |