Minnesota's Legacy

2014 - Arctic Lake Restoration

Project Details by Fiscal Year
2014 Fiscal Year Funding Amount
Fund Source
Clean Water Fund
Prior Lake-Spring Lake WD
Recipient Type
Local/Regional Government
Start Date
March 2014
End Date
December 2016
Activity Type
Counties Affected
Legal Citation / Subdivision
Laws of Minnesota 2013, Regular Session chapter 137
Appropriation Language

Projects and Practices 2014

2014 Fiscal Year Funding Amount
Other Funds Leveraged
Direct expenses
Administration costs
Number of full time equivalents funded
Proposed Measurable Outcome(s)

Reducing phosphorus loads by a proposed 23 lbs/yr (a 62% reduction) off of the watershed should decrease the frequency and severity of algal blooms, and lead to greater transparency in the lake. Additionally, reducing the carp population to a manageable density (100 lb/acre or less) will interrupt the cycle of turbidity and allow rooted plants to re-establish.

Measurable Outcome(s)

This project resulted in a phosphorus reduction of 60 lb. per year

Source of Additional Funds


Recipient Board Members
Members for Prior Lake-Spring Lake WD are: Bruce Thorsen, Curt Hennes, Fred J Corrigan, Greg Aamodt, Marianne Breitbach, Woody Spitzmueller
Project Overview

Arctic Lake, while not listed as an impaired water on the statewide 303(d) list, both regularly exceeds the statewide phosphorus standard for shallow lakes and drains directly to Upper Prior Lake, which is impaired for nutrients Reducing Phosphorus to Arctic Lake will help reverse the current declining water quality while also reducing the loading entering Upper Prior Lake. A 2013 study jointly commissioned by the Shakopee Mdewakanton Sioux Community, the City of Prior Lake, and the Prior Lake - Spring Lake Watershed District (PLSLWD) quantified phosphorus loads to the lake, both external and internal, and prioritized water management projects to reduce the load.

This project consists of three components: retrofitting stormwater ponds with iron-sand filters, restoring a wetland, and managing carp. The PLSLWD water management plan identified these components as the best means to reduce loading to Arctic Lake (by approximately 29 lbs/year).

Project Manager
First Name
Last Name
Organization Name
Prior Lake-Spring Lake WD
Competitive Grant Making Body
Advisory Group Members and Qualifications
Conflict of Interest Disclosed
Conflict of Interest Contact

Nicole Clapp