Bloomington

ABOUT PENN LAKE

Penn Lake, just east of Highway 35W in Bloomington, is a shallow lake with opportunities for bird watching, picnicking, and canoeing.

street view map of Penn Lake
Penn Lake, Bloomington

Water Quality

graph of phosphorous levels in Penn Lake from 1979 to 2016
Phosphorous levels in Penn Lake are consistently higher than the state standard.

Water quality of Penn Lake is poor, with average phosphorous levels higher than state standards for shallow lakes. Phosphorous is the nutrient that fuels algae and plant growth and can lead to unwanted algae blooms in a lake. Penn Lake’s water quality limits activities on the lake, but there is a picnic area perfect for watching wildlife and canoeing is allowed, along with fishing.

 

 

graph of chlorophyll-a levels in Penn Lake from 1979 to 2016
Chlorophyll-a levels in Penn Lake are consistently higher than the state standard.
graph of water clarity in Penn Lake measured with a secchi disk
During monitoring, the water clarity of Penn Lake has always been less than the one meter state standard.

 

 

 

 

 

 

 

Printable lake fact sheet

Past Projects

The Nine Mile Creek Watershed District has not conducted any major water quality improvement projects on Penn Lake. The District has helped fund several best management projects near Penn Lake including: raingardens, shoreline buffers, habitat restorations, and more. These projects help reduce runoff that enters Penn Lake. The District also provides education on pollution and runoff prevention.

For information about other past District projects, click here

Penn-Lake-park

 

Lower Penn Lake has great bird watching. […] you feel like you are far away from the big metropolitan area when you are on this lake. –Lisa McIntire, volunteer lake monitor

Recreation

icon of picnic tableicon of fishing

 

 

 

 

Penn Lake has a picnic area perfect for watching wildlife and canoeing is allowed, along with fishing. A variety of fish species live in the lake including: black bullhead, black crappie, bluegill, brown bullhead, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, white crappie, yellow bullhead, yellow perch, bigmouth buffalo, common carp, white sucker, and fathead minnow. Eagles regularly nest on the shores of Penn Lake.

 

The Minnesota Department of Natural Resources may have additional information on the lake (including fishing regulations; location; water access sites; lake maps; lake reports on stocking, ice in/out and water quality; fish consumption; and aquatic plant surveys) if so, that information can be found here:

https://www.dnr.state.mn.us/lakefind/index.html

Downloadable water quality data can be found here:

https://www.pca.state.mn.us/water/water-quality-data

diagram of ways to clean water—clean off boats for AIS, sweep up leaves and grass, pick up after pets, and plant native plants