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LakeQuality

Washte Lake

NR
Not yet rated
12 ft clear · Mesotrophic · 81 acres
Limited DataMesotrophic

Washte Lake in Lake County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12 ft visibility. Surface area: 81.47 acres.

Clarity
12 ft
Area
81 acres
Trend
Improving
Public access
No

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Why Washte Lake has no grade

We grade a lake only when its monitoring record clears the evidence bar: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Washte Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).

Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.

Sampling is run by MPCA and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.

Washte Lake is a 81-acre lake in Lake County, Minnesota. Overall water quality is improving over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-06-30. Grade methodology: LakeGrade methodology.

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Swimming Safety

Not rated

Limited data

Not rated for swimming — there is not enough monitoring data to judge this lake

Compare the safest swimming lakes near Ely

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Water quality measurements for Washte Lake

These readings exist but do not meet the evidence bar for an A–F grade — see why.

Good clarity, visible to about 12 ft. Trophic State Index: 41.

MetricValueGrade
Water Clarity (Secchi Depth)12 ftNot graded
PhosphorusNo recent samples
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)41Mesotrophic

Moderate nutrients, good water quality

Where to stay near Washte Lake

Compare lakeside cabins, hotels, and vacation rentals near Washte Lake in Lake County, Minnesota — 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 Washte Lake

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 Minnesota’s top lakes →

Lake Details

CharacteristicValue
Surface Area81 acres
Shoreline Length1.8 mi
Littoral Zone100%
Public AccessNo

The available depth estimate for Washte Lake is shallower than its measured water clarity, which cannot be right, so no depth is shown.

Lake Size & Watershed

Watershed (drainage) area
0 sq mi
Elevation
1,365 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).

Fishing Washte Lake

DNR Fisheries Survey Summary

1 survey on file from MN DNR Fisheries. Most recent: 1975-08-07 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
White Sucker30.001.1 lb
Yellow Perch25.000.12 lb

CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.

From the 1975-08-07 survey

Contains high populations of yellow perch and white suckers.

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Washte Lake. 1 report on file.

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.096 m/yr5
See year-by-year chart →

EPA Impairment Status

Washte Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN38-0642-00 · Official waterbody report · Matched by proximity (1.34 km)

Nearby Lakes in Lake County

Frequently asked questions about Washte Lake

What is the water quality grade for Washte Lake?

Washte Lake in Lake County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12 ft visibility. Surface area: 81.47 acres.

Is Washte Lake safe to swim in?

Not rated for swimming — there is not enough monitoring data to judge this lake. Washte Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.

How deep is Washte Lake?

The available depth estimate for Washte Lake is shallower than its measured water clarity, which cannot be right, so no depth is shown. The lake covers 81.47 acres.

Mesotrophic Lakes in Minnesota

Where this data comes from

1 measurement from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Minnesota Pollution Control Agency - Ambient Surface WaterMNPCA1 sample · 2023

Analytical methods

  • Field measurement/observation, generic method
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database

Lake size & watershed from HydroLAKES (HydroSHEDS)

Lake details from Minnesota DNR LakeFinder