Where is Hafften Lake?

Hafften Lake is a lake in Hennepin County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

How deep is Hafften Lake?

Hafften Lake has a maximum depth of 43.6 feet. The lake covers 40 acres.

Are there boat ramps on Hafften Lake?

Hafften Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Hafften Lake. Public access is listed as yes.

Can I fish at Hafften Lake?

Hafften 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 Minnesota's fish and wildlife agency, so check its current regulations before you go.

Hafften Lake

Hennepin County, Minnesota40 acresView map Directions

No nutrient or algae sampling on record from Minnesota PCA for this lake.

Max depth

43.6 ft

Bathymetric survey

Area

40 acres

Surface area

Shoreline

0.9 mi

Measured length

Impaired · Mercury
44 ft max depth
Public access

See the measurements Directions Where to stay

Hafften Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 43.6 ft. Surface area: 40 acres.

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Hafften Lake is a 40-acre lake in Hennepin County, Minnesota with a maximum depth of 44 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.

What Hafften Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Deep water43.6 ft surveyed max depth

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Hafften Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Hafften 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.

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Water quality measurements for Hafften Lake

These are the measurements Minnesota PCA publishes for Hafften Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Hafften Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

43.6 ft

Surface area

40 acres

Shoreline

0.9 mi

Public access

Yes

Listed by Minnesota PCA

The depth above comes from a bathymetric survey of this lake, not from a regional estimate.

Recreation & Access

Boat Landings

Yes

Public Access

Hafften LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Hafften Lake

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Fishing Hafften Lake

→ Hafften Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Hafften Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryNutrients (phosphorus, nitrogen)

Designated uses not supporting: Fish consumption, Recreation.

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

Source: EPA ATTAINS assessment unit MN27-0199-00 · Official waterbody report

Nearby Lakes in Hennepin County

Schendel Lake0.5 miView →Schwappauf Lake4.4 ft clear · Eutrophic1.6 miView →Sarah Lake3.1 ft clear · Eutrophic2 miView →East Sarah Lake3.5 ft clear · Eutrophic2.4 miView →Jubert Lake3.2 miView →Rebecca Lake4.7 ft clear · Eutrophic3.6 miView →

Frequently asked questions about Hafften Lake

Where is Hafften Lake?: Hafften 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 Hafften Lake?: Hafften Lake in Hennepin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 43.6 ft. Surface area: 40 acres.
Is Hafften Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Hafften Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Hafften Lake?: Hafften Lake has a maximum depth of 43.6 feet. The lake covers 40 acres.
Are there boat ramps on Hafften Lake?: Hafften Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Hafften Lake. Public access is listed as yes.
Can I fish at Hafften Lake?: Hafften 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 Minnesota's fish and wildlife agency, so check its current regulations before you go.