Lower Prior Lake was the target of a 2011-2013 diagnostic and feasibility study that identified projects and ranked subwatershed by phosphorus loading to the lake. This project is in a high loading subwatershed and includes three elements designed to reduce phosphorus loading and control rates and volumes of stormwater runoff: 1) retrofitting an existing ditch section with in-line iron-sand filters; 2) expanding storage capacity and creating wetland upstream of the ditch; and 3) installing a new control structure in an existing berm.
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.
The Burandt Lake Stormwater Reuse System (BLSRS) project will install a water reuse system to capture untreated storm water and reduce pollutants entering Burandt Lake. This collaborative project with Carver County, Carver County Soil and Water Conservation District (SWCD), City of Waconia and Independent School District 110 will retain and reuse an estimated 48% of the annual storm water runoff (1.25 million gallons) currently generated from eight acres of adjacent residential neighborhoods.
The Otter Tail County Community Partners Grant Project will enable community groups to go beyond planning and take action to protect their water resources. This grant program will provide targeted community groups with the means to make positive improvements now and identify high priority projects for future opportunities. Engaging community members in the identification of water protection opportunities with the data in recently completed lake assessment reports will help build connections and foster a stewardship ethic.
This project will work to install 30 water and sediment control basins (WaSCOBs) in three subwatersheds adjacent to Lake Minnewaska to reduce the amount of total phosphorus (TP) entering Pelican Lake, Lake Minnewaska, and Lake Emily. Pelican Lake and Lake Emily have been identified in an 8 lake Total Maximum Daily Load (TMDL) study conducted in Pope County as being impaired for excess nutrients.
This project will reduce sediment to the Minnesota River, control erosion and reduce sedimentation in a local DNR Protected Water and protect private land and public infrastructure. The County Road (CR) 6 ravine (Quarry Creek) cuts through the Minnesota River valley bluff in Blakeley Township. Active channel incision and erosion within the ravine has caused large amounts of sediment to be deposited under the bridge at CR 6 such that the road is frequently flooded and sediment has to be removed several times a year.
Calcareous fens such as the Savage Fen are fragile ecosystems existing only under a unique combination of soil type, hydrology, chemistry, and vegetation. The City of Savage is continuing efforts to protect this important ecosystem through this project. Two large ravines -Dakota Avenue and McColl's Bluff - discharge to the Fen, which was granted special status under the State's Wetlands Conservation Act. Both ravines are highly eroded and carry a significant amount of stormwater and sediment to the Savage Fen.