Lake Water Quality Report
1 cities ranked · Average grade: A+ · South Dakota
Avg Score
95.5
Cities Ranked
1
Health Violations
1
PFAS Detected
1
95.5
County avg score
1
Cities ranked
100%
A or B grade
0%
D or F grade
1
Health violations
1
PFAS detected
Grade Distribution
How Lake cities scored
A
1
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs South Dakota average
▲ 14.2 pts above state average
City Map
Water quality across Lake
Each dot is a city, colored by grade. Click any city to view its full report.
County context
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Lake
Industrial polluters nearby
Facilities reporting the most surface-water releases in Lake, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
MANITOU EQUIPMENT AMERICA LLC. - MADISON MADISON, SD57042 | — | — |
DAKOTA ETHANOL LLC WENTWORTH, SD57075 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 1 cities in Lake
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Madison | A+ | 95.5 | 6K | 35 | Health Unresolved |