Gleason Lake
Gleason Lake in Hennepin County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility.
- Clarity
- 1.7 ft
- Typical in August
- 73°F
- Mean depth
- ~14 ft est.
- Trend
- ↓ Declining
- Public access
- No
Next lake in Hennepin County
Why Gleason 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 Gleason Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. 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.
Gleason Lake is a lake in Hennepin County, Minnesota with an estimated average depth of about 14 feet. Overall water quality is declining 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 2024-07-21. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Gleason Lake
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Very murky, less than 1.7 ft of visibility. Trophic State Index: 69.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.7 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 69 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Gleason Lake
Compare lakeside cabins, hotels, and vacation rentals near Gleason Lake in Hennepin 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 Gleason Lake
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Water Temperature
Gleason Lake typically sits around 73°F at the surface in August. Summer average is about 72°F. Usually warmest in Jul (about 74°F) and coldest in Apr (about 56°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 225 field readings (2010–2019) via the EPA Water Quality Portal. See the full Gleason Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~14 ft est. |
| Public Access | No |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Minnesota has not published bathymetry for Gleason Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Gleason Lake
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.502 m/yr | 3 |
EPA Impairment Status
Gleason Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN27-0095-00 · Official waterbody report
Graded lakes near Gleason Lake
Gleason Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Hennepin County
Frequently asked questions about Gleason Lake
What is the water quality grade for Gleason Lake?
- Gleason Lake in Hennepin County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.7 ft visibility.
Is Gleason Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Gleason Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Gleason Lake?
- Gleason Lake typically sits around 73°F at the surface in August, from 225 EPA Water Quality Portal field readings (2010–2019). That is a typical value for the month, not a live reading.
How deep is Gleason Lake?
- No published bathymetric survey covers Gleason Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 14 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
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Where this data comes from
6 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA6 samples · 2024
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