Normandale Lake
Hennepin County, Minnesota82 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Normandale Lake. Here is what has been measured.
- Eurasian watermilfoil
- 35 ft max depth
- Public access
- Limited data
Normandale Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.7 ft visibility. Phosphorus: 84 µg/L. Chlorophyll-a (algae): 16.2 µg/L. Surface area: 82 acres.
Normandale Lake is a 82-acre lake in Hennepin County, Minnesota with an estimated average depth of about 35 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-21. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Normandale 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 Normandale Lake
These are the measurements Minnesota PCA publishes for Normandale Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 3.7 ft. Phosphorus 84 µg/L. Chlorophyll-a 16.2 µg/L. TSI 61.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.7ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 84µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 16.2µg/L | Measured, not scored 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. | 61 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Normandale Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Normandale Lake typically sits around 55°F at the surface in October. Summer average is about 82°F. Usually warmest in May (about 87°F) and coldest in Oct (about 55°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (55°F) to its warmest (87°F).
Typical surface water temperature by month, from 58 field readings (2010–2024) via the EPA Water Quality Portal. See the full Normandale Lake water temperature breakdown →
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Normandale Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fish Stocking History — NormandaleFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — NormandalePublic Water Access Sites · MN DNR LakeFinder
Lake Details
Max depth
~35 ft est.
Surface area
82 acres
Public access
Yes
Listed by Minnesota PCA
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Minnesota has not published bathymetry for Normandale Lake.
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.7 mi
HydroLAKES / HydroSHEDS
Elevation
797 ft
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.
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Stays near Normandale Lake
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Top-rated places to stay near Normandale Lake
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Fishing Normandale 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.
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2024).
Water clarity
Stable5 years
Reservoir Info (USACE NID)
Normandale Lake is a man-made reservoir impounded by the Normandale Lake (completed 1980), built primarily for flood risk reduction on the Ninemile Creek; earth-type dam, 7 ft tall.
- Surface area
- 82 ac
- Max storage
- 400 ac-ft
- Drainage area
- 33 sq mi
- Hazard class
- Low
- Owner
- City of Bloomington
Source: USACE National Inventory of Dams, NID ID MN01494 · Operator website
Nearby Lakes in Hennepin County
Frequently asked questions about Normandale Lake
Where is Normandale Lake?
- Normandale 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 Normandale Lake?
- Normandale Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.7 ft visibility. Phosphorus: 84 µg/L. Chlorophyll-a (algae): 16.2 µg/L. Surface area: 82 acres.
Is Normandale 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 Normandale Lake?
- Normandale Lake typically sits around 55°F at the surface in October, from 58 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
How deep is Normandale Lake?
- No published bathymetric survey covers Normandale Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 35 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 82 acres.
Can I fish at Normandale Lake?
- Public access to Normandale Lake is listed as yes on the lake record. 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
164 measurements from 4 monitoring stations, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA164 samples · 2020–2024
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- Chlorophyll-a and Pheophytin in Water by Spectrophotometric Measurement of Ethanolic Extract from Filter Residue
- Turbidity, Probe Method
Monitoring station identifiers (4)
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 size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder