East Twin Lake
Marquette County, Wisconsin13 acresView mapDirections
Wisconsin DNR publishes the water-quality measurements for East Twin Lake. Here is what has been measured.
- Eutrophic
- Curly-Leaf Pondweed
- 8 ft max depth
- Public access
- Limited data
East Twin Lake in Marquette County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 3.3 ft visibility. Phosphorus: 18.1 µg/L. Maximum depth: 8 ft. Surface area: 13 acres.
East Twin Lake is a 13-acre productive, nutrient-rich eutrophic lake in Marquette County, Wisconsin with a maximum depth of 8 feet. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 10 other monitored lakes in Marquette County, East Twin Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2021-02-18. Methodology: how these readings are compared.
What East Twin Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether East Twin Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for East Twin Lake
These are the measurements Wisconsin DNR publishes for East Twin Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3.3 ft of visibility. Phosphorus 18.1 µg/L. TSI 53.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 18.1µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 53 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about East Twin Lake
Answers come straight from the public measurements and survey records on this page.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2021).
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for East Twin Lake covering fish populations, stocking, water quality, and management. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2022Twin Lakes spring shocking survey, 2022Spring Shocking Survey · WI DNR · 2022 (PDF)
Lake Details
Max depth
8 ft
Surface area
13 acres
Public access
Yes
Listed by Wisconsin DNR
Recreation & Access
- East Twin LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near East Twin Lake
Compare lakeside cabins, hotels, and vacation rentals near East Twin Lake in Marquette County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near East Twin Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Follow East Twin Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing East Twin Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Nearby Lakes in Marquette County
Frequently asked questions about East Twin Lake
Where is East Twin Lake?
- East Twin Lake is a lake in Marquette County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of East Twin Lake?
- East Twin Lake in Marquette County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Water clarity: 3.3 ft visibility. Phosphorus: 18.1 µg/L. Maximum depth: 8 ft. Surface area: 13 acres.
Is East Twin Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is East Twin Lake?
- East Twin Lake has a maximum depth of 8 feet. The lake covers 13 acres.
Are there boat ramps on East Twin Lake?
- East Twin Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include East Twin Lake. Public access is listed as yes.
Can I fish at East Twin Lake?
- East Twin Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wisconsin's fish and wildlife agency, so check its current regulations before you go.
Explore East Twin Lake across LakeQuality
Fish species and the cleanest lakes across Wisconsin
Fish species and best lakes in Marquette County
Species activity outlook by water temperature and season
Where to stay at Wisconsin's top lakes, each with its readings
Wisconsin's cleanest lakes, ranked on agency measurements
More lakes in Wisconsin
State Parks Near East Twin Lake
Other Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Where this data comes from
11 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX11 samples · 2020–2021
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Fish and recreation data from Wisconsin DNR Lakes
Named boat-access points from the USGS National Boat Ramps inventory