Pomerleau Lake
Hennepin County, Minnesota26 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Pomerleau Lake. Here is what has been measured.
- Mesotrophic
- 26 ft max depth
Pomerleau Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 10.3 ft visibility. Phosphorus: 20.5 µg/L. Chlorophyll-a (algae): 3.9 µg/L. Maximum depth: 26 ft. Surface area: 25.69 acres.
Minnesota DNR's Standard Survey on July 5, 1994 caught 19.83 largemouth bass per trap net at Pomerleau Lake. Length samples in the latest survey that recorded them ran 3–15 inches. DNR survey details →
Pomerleau Lake is a 26-acre mesotrophic lake in Hennepin County, Minnesota with a maximum depth of 26 feet (9-foot average). Overall water quality is improving over recent sampling years. The lake supports 5 documented fish species including black bullhead, black crappie, and bluegill. No public access — the lake is private or restricted. Compared to the 80 other monitored lakes in Hennepin County, Pomerleau Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-09-28. Methodology: how these readings are compared.
What Pomerleau Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10.3 ft of visibility
- Fishing5 species recorded
Swimming conditions
Readings onlyLow algae
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 Pomerleau Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Pomerleau Lake
These are the measurements Minnesota PCA publishes for Pomerleau Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Good clarity, visible to about 10.3 ft. Phosphorus 20.5 µg/L. Chlorophyll-a 3.9 µg/L. TSI 45.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 10.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 20.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 3.9µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 45 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Pomerleau Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Pomerleau Lake typically sits around 54°F at the surface in October. Summer average is about 65°F. Usually warmest in Jul (about 66°F) and coldest in Apr (about 53°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (53°F) to its warmest (66°F).
Typical surface water temperature by month, from 385 field readings (2016–2021) via the EPA Water Quality Portal. See the full Pomerleau Lake water temperature breakdown →
Minnesota DNR's Standard Survey on July 5, 1994 caught 19.83 largemouth bass per trap net at Pomerleau Lake. Length samples in the latest survey that recorded them ran 3–15 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Pomerleau Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 1994-07-05 (Standard Survey).
2 surveys on file · most recent 1994-07-05 (Standard Survey)
32 years old| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Green Sunfish | 566.17 | 1–8 in 1994-07-05 | 0.11 lb |
| Largemouth Bass | 19.83 | 3–15 in 1994-07-05 | 0.05 lb |
| Brown Bullhead | 17.67 | 0.39 lb | |
| Hybrid Sunfish | 12.00 | 0.23 lb | |
| Black Bullhead | 6.25 | 7–11 in 1994-07-05 | 0.24 lb |
| Black Crappie | 5.78 | 3–11 in 1994-07-05 | 0.14 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Green Sunfish
Largemouth Bass
Black Bullhead
Black Crappie
From the 1994-07-05 survey
Green sunfish are by far the most abundant in this lake. They were netted at over 125 times the average when compared to similar lakes. Largemouth bass were also sampled at high levels. However they only averaged 4.9 inches in length. Black crappies and black bullheads were sampled in average numbers. The mean length…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Pomerleau Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — PomerleauFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
26 ft
Average depth
9 ft
Surface area
26 acres
Shoreline
0.8 mi
Littoral zone
77%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
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Fish Species
Click a species to see every lake where it is documented.
Fishing Pomerleau Lake
Water quality readings over time
2 seasons of samples on record (2020–2021). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Phosphorus
Improving-3.5 µg/L/yr2 years
Chlorophyll-a
Improving-0.9 µg/L/yr2 years
Nearby Lakes in Hennepin County
Frequently asked questions about Pomerleau Lake
Where is Pomerleau Lake?
- Pomerleau Lake is a lake in Hennepin County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Pomerleau Lake?
- Pomerleau Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 10.3 ft visibility. Phosphorus: 20.5 µg/L. Chlorophyll-a (algae): 3.9 µg/L. Maximum depth: 26 ft. Surface area: 25.69 acres.
Is Pomerleau Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Pomerleau Lake?
- Pomerleau Lake typically sits around 54°F at the surface in October, from 385 EPA Water Quality Portal field readings (2016–2021). That is a typical value for the month, not a live reading.
How deep is Pomerleau Lake?
- Pomerleau Lake has a maximum depth of 26 feet and an average depth of 9 feet. The lake covers 25.69 acres.
What fish are in Pomerleau Lake?
- Fish species found in Pomerleau Lake include black bullhead, black crappie, bluegill, green sunfish, largemouth bass. Pomerleau Lake is located in Hennepin County, Minnesota.
What did the DNR fisheries survey find at Pomerleau Lake?
- Minnesota DNR's Standard Survey on July 5, 1994 caught 19.83 largemouth bass per trap net at Pomerleau Lake. Length samples in the latest survey that recorded them ran 3–15 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Pomerleau Lake’s water-quality measurements separately, and the water-quality trend over 2 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Pomerleau Lake?
- Public access to Pomerleau Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
80 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA80 samples · 2020–2021
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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
Lake details from Minnesota DNR LakeFinder