If you see something, say something.
Weed Control Permits
Midwest Aquacare spraying for shoreline weed/AIS control
- 2021 weed treatment form is now available. Forms must be returned to Midwest Aqua Care by March 15.
Do I send money with the forms?
Yes, send a check for the appropriate amount:
1 Spraying: Cost may vary each year – see MAC form.
2 Sprayings: Cost may vary each year – see MAC form.
(GLIA pays the permit fee of $35 for its members.)
Can I get help diagramming the treatment area?
If MAC has done the treatment in prior years and the information that MAC has is still correct, you can note “treat same as last year.” If you need help, reach out to the GLIA Board of Directors.
Do I need to sign the form in two places?
Yes, the top half is for MAC; the bottom half is for DNR.
Who can I contact with additional questions?
Email email@example.com or call 952-403-6879.
Watershed Management History
Protecting Our Lake Guide
Minnehaha Creek Watershed Management Plan
View MCWD’s Watershed Management Plan [January 2018]
Surveys & Reports
Gleason Lake Test Results
Fish Survey Report
Aquatic Invertebrate Field Report
Aquatic Plant Surveys
Curly Leaf Pondweed
Gleason Lake CLP Treatment Sites April 7, 2017
Gleason Lake CLP Occurence April 9, 2016
Gleason Lake CLP Occurence June 9, 2014
Gleason Lake CLP Occurence May 9, 2014
Curly Leaf Pondweed, 2007-2011 (Powerpoint)
Evaluation of lake-wide, early-season herbicide treatments for controlling curlyleaf pondweed
2009 Eurasian Watermilfoil Map [1MB].
2007 Eurasian Watermilfoil Map [1MB]
No Eurasian Watermilfoil was located during the 2007 surveys. The site map depicts seven previously reoccurring EWM locations. These locations have all been treated numerous times for the control of EWM. Scattered plants did occur between points # 1 to #2 and between points #3 to #4. The original sites #3 and #4 were confirmed by the MN DNR in 1998.
Treatments & Practices
Gleason Lake is a small, shallow lake with a great deal of nutrients and vegetation. The lake is aerated in winter to maintain adequate oxygen levels for lake and fish health. Lakes as shallow as Gleason can only absorb oxygen through open water.
Gleason Lake’s aerator is typically turned on in December or January (ice must be 5-6” thick). Holes are drilled and stakes are set in ice.
“Thin Ice” signs are posted to mark the aeration area and thin ice notice is submitted to local newspaper.
The aerator is typically turned off in April after the ice goes out.
Aquathol K is a 40.3% Endothall liquid concentrate soluble in water used to treat a broad range of aquatic leafy plants. Aquathol K has a wide margin of tolerance for fish and other aquatic animals.