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LakeQuality
C

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.

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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.

MetricValueGrade
Water Clarity (Secchi Depth)8 ftC
Phosphorus45.5 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)53Eutrophic

High nutrients, frequent algae, reduced clarity

Lake Details

CharacteristicValue
Maximum Depth11 ft
Surface Area33 acres
Public AccessYes

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.

Curly-Leaf Pondweed

Water Quality Trend: Stable

Based on 3 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Stable0 m/yr3
Phosphorus Stable-0.15 µg/L/yr3

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

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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.

See full comparison →

Nearby Lakes in Adams County

WI DNR Lake Profile

Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2024).

Fish Species (DNR-rated)

Panfish(Common)Largemouth Bass(Present)Northern Pike(Present)Trout(Present)

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

Cause unknown

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

Compare lakeside cabins, hotels, and vacation rentals near Easton Lake in Adams County, Wisconsin — live availability and prices for your trip.

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