Marathon Water Quality Report
14 cities ranked · Average grade: B · Wisconsin
Avg Score
78.2
Cities Ranked
14
Health Violations
12
PFAS Detected
3
78.2
County avg score
14
Cities ranked
86%
A or B grade
7%
D or F grade
12
Health violations
3
PFAS detected
Grade Distribution
How Marathon cities scored
A
2
14%
Excellent
B
10
71%
Good
C
1
7%
Fair
D
0
0%
Poor
F
1
7%
Failing
Comparison
County vs Wisconsin average
▲ 0.2 pts above state average
City Map
Water quality across Marathon
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Marathon
Best cities
County context
4
Superfund sites in Marathon
93.4%
of residents on fluoridated water (CDC, 2020)
61,976
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Marathon
Industrial polluters nearby
Facilities reporting the most surface-water releases in Marathon, 2023.
Total reported releases to surface water: 61,976 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
AHLSTROM MOSINEE LLC MOSINEE, WI54455 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 46,275 |
DOMTAR PAPER CO LLC ROTHSCHILD, WI54474 | Manganese And Manganese Compounds | 13,394 |
BORREGAARD USA INC. ROTHSCHILD, WI54474 | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,235 |
WESTON POWER PLANT MOSINEE, WI54455 | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,019 |
KERRY INC. ROTHSCHILD ROTHSCHILD, WI54474 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 50 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Marathon
Superfund sites nearby
Federally tracked hazardous-waste sites within Marathon on the EPA National Priorities List.
- MID STATE DISPOSAL INC LANDFILL
- SPICKLER LANDFILL
- UNITY AUTO MART
- WAUSAU GROUND WATER CONTAMINATION
Source: EPA Superfund National Priorities List
Full Rankings
All 14 cities in Marathon
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Hatley | A | 90.1 | 550 | 57 | Health Unresolved | |
| 2 | Colby | A- | 85.7 | 2K | 2 | Unresolved | |
| 3 | Stratford | B+ | 83.9 | 2K | 38 | Health Unresolved | |
| 4 | Weston | B+ | 83 | 16K | 54 | PFAS Unresolved | |
| 5 | Rothschild | B+ | 83 | 3K | 86 | Health Unresolved | |
| 6 | Spencer | B+ | 82.4 | 2K | 13 | Health Unresolved | |
| 7 | Edgar | B+ | 81.3 | 1K | 20 | Health Unresolved | |
| 8 | Kronenwetter | B+ | 81 | 7K | 6 | Health Unresolved | |
| 9 | Athens | B+ | 80.1 | 1K | 67 | Health Unresolved | |
| 10 | Abbotsford | B | 79 | 3K | 67 | Health Unresolved | |
| 11 | Schofield | B | 79 | 2K | 19 | Health PFAS Unresolved | |
| 12 | Marathon City | B | 78.7 | 2K | 11 | Health Unresolved | |
| 13 | Wausau | C | 64.7 | 47K | 61 | Health PFAS Unresolved | |
| 14 | Mosinee | F | 43 | 5K | 173 | Health Unresolved |