Clark Water Quality Report
7 cities ranked · Average grade: B · Wisconsin
Avg Score
75.9
Cities Ranked
7
Health Violations
6
PFAS Detected
0
75.9
County avg score
7
Cities ranked
57%
A or B grade
14%
D or F grade
6
Health violations
0
PFAS detected
Grade Distribution
How Clark cities scored
A
3
43%
Excellent
B
1
14%
Good
C
2
29%
Fair
D
1
14%
Poor
F
0
0%
Failing
Comparison
County vs Wisconsin average
▼ 2.1 pts below state average
City Map
Water quality across Clark
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Clark
Worst cities
County context
60.0%
of residents on fluoridated water (CDC, 2020)
366,324
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Clark
Industrial polluters nearby
Facilities reporting the most surface-water releases in Clark, 2023.
Total reported releases to surface water: 366,324 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
LYNN DAIRY/LYNN PROTEINS GRANTON, WI54436 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 333,719 |
GRASSLAND DAIRY PRODUCTS INC GREENWOOD, WI54437 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 32,605 |
ALL METAL STAMPING INC. ABBOTSFORD, WI54405 | — | — |
HENRY G MEIGS ABBOTSFORD, WI54405 | — | — |
CUMMINS FILTRATION-NEILLSVILLE EAST NEILLSVILLE, WI54456 | — | — |
+ 2 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 7 cities in Clark
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Withee | A | 91.5 | 506 | 25 | Unresolved | |
| 2 | Greenwood | A- | 88.8 | 1K | 10 | Health Unresolved | |
| 3 | Loyal | A- | 87 | 1K | 10 | Health Unresolved | |
| 4 | Dorchester | B+ | 82.1 | 834 | 1 | Health Unresolved | |
| 5 | Neillsville | C+ | 68.7 | 3K | 109 | Health Unresolved | |
| 6 | Owen | C- | 59.2 | 1K | 42 | Health Unresolved | |
| 7 | Thorp | D+ | 54.2 | 2K | 116 | Health Unresolved |