SWWD Lakes Targeted Retrofit
The South Washington Watershed District (SWWD) and its partners will continue restoration of Colby, Wilmes, and Powers Lakes through coordinated implementation of targeted watershed retrofits as part of planned roadway rehabilitation projects. Watershed retrofits will include right of way bioretention, iron enhanced sand filtration, and stormwater reuse for irrigation. These practices represent some of the most cost-effective options remaining to provide the nutrient loading reductions necessary to protect and restore SWWD's lakes.
Nicole Clapp
Projects and Practices 2016: Laws of MN 2015 First Special Session Chapter 2, Article 7, Section 7
For this project, phosphorus is captured through Right-of-Way biofiltration, iron-enhanced filtration and reuse as irrigation. The project will reduce annual TP loading to Powers, Wilmese, and Colby Lakes by 2.25, 17.5, and 4.5 lbs/yr respectively.
This project resulted in an estimated reduction of 20 lb. of phosphorus per year
LOCAL LEVERAGED FUNDS