Easton Lake
Adams County, WisconsinEutrophic
Easton Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. A maximum depth of just 11 ft means sediment-bound phosphorus releases back into the water column whenever wind stirs the bottom — a classic shallow-lake dynamic. The lake is compact at 33 acres, with partial shoreline records and little volume to buffer nutrient inputs. Easton Lake ranks 17 of 19 in Adams County — at the lower end of the locally monitored distribution.
Easton Lake has at least one documented invasive species (Curly-Leaf Pondweed), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. Bass fishing is part of the appeal: the species list runs to 4, anchored by largemouth and/or smallmouth bass. Public access is available — the lake is on the Wisconsin DNR public-access list. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-07-24. Grade methodology: LakeGrade methodology.
Watch Easton Lake water quality
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 8 ft. Phosphorus level: 45.5 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | C |
| Phosphorus | 45.5 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 11 ft |
| Surface Area | 33 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Easton Lake (14-day solunar calendar)
→ Is it safe to eat fish from Easton Lake? (mercury & PFAS guide)
→ Easton Lake fishing regulations (limits, seasons, special rules)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: → Stable
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | 0 m/yr | 3 |
| Phosphorus | → Stable | -0.15 µg/L/yr | 3 |
Recreation & Access
Location
County Ranking
Ranked #17 of 19 lakes in Adams County
Cleaner Lakes Within 30 Miles
Easton Lake holds Grade C. 5 nearby lakes hold higher grades.
- ADeep LakeAdams County · mi · Two grade letters higher (C → A)
- AWolf LakeAdams County · mi · Two grade letters higher (C → A)
- AParker LakeAdams County · mi · Two grade letters higher (C → A)
- BGoose LakeAdams County · mi · Higher grade (C → B)
- BPatrick LakeAdams County · mi · Higher grade (C → B)
Nearby Lakes in Adams County
More Wisconsin Lake Rankings
State Parks Near Easton Lake
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).
Fish Species (DNR-rated)
Reservoir Info (USACE NID)
Easton Lake is a man-made reservoir impounded by the Easton (completed 1855), built primarily for recreation on the CAMPBELL CREEK; earth-type dam, 20 ft tall and 350 ft long.
- Surface area
- 24 ac
- Normal storage
- 130 ac-ft
- Max storage
- 305 ac-ft
- Drainage area
- 17.6 sq mi
- Hazard class
- Low
- Owner
- Adams County
Source: USACE National Inventory of Dams, NID ID WI00093 · Operator website
EPA Impairment Status
Easton Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WI10008630 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2024-07-24
Monitoring stations: 1
Where to stay near Easton Lake
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