Moody Lake
Oconto County, WisconsinEutrophic
Moody Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Moody Lake ranks 57 of 62 in Oconto County — at the lower end of the locally monitored distribution.
No invasive species are currently listed at Moody Lake — the lake remains off the Wisconsin infested-waters roster. The state fisheries records do not list documented species for Moody Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2023-08-23. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5 ft. Phosphorus level: 44.1 µg/L. Trophic State Index: 56.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5 ft | D |
| Phosphorus | 44.1 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 56 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.161 m/yr | 4 |
| Phosphorus | ↑ Improving | -0.41 µg/L/yr | 6 |
Recreation & Access
Location
County Ranking
Ranked #57 of 62 lakes in Oconto County
Cleaner Lakes Within 30 Miles
Moody Lake holds Grade C. 5 nearby lakes hold higher grades.
- AGreen LakeOconto County · mi · Two grade letters higher (C → A)
- ABear Paw LakeOconto County · mi · Two grade letters higher (C → A)
- AShay LakeOconto County · mi · Two grade letters higher (C → A)
- AAnderson LakeOconto County · mi · Two grade letters higher (C → A)
- CChute Pond atOconto County · mi · Higher overall water quality score
Nearby Lakes in Oconto County
More Wisconsin Lake Rankings
State Parks Near Moody Lake
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2023-08-23
Monitoring stations: 1
Where to stay near Moody Lake
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