Shields Lake Stormwater Harvest, Irrigation Reuse,
and Alum Treatment Project
This is a multi-phase project that will greatly reduce phosphorus loads to Shields Lake, and subsequently Forest Lake. Phase 1 of the project will entail impounding/harvesting water from a tributary to Shields Lake for irrigation reuse by Forest Hills Golf Course. The impounding of surface flow will reduce the watershed phosphorus load by 77 pounds/year, and the irrigation reuse will reduce the amount of groundwater being used for irrigation. Phase 2 of the project will entail a whole-lake alum treatment to Shields Lake which will reduce internal sediment phosphorus loading to natural background levels. The entire project is expected to reduce phosphorus loads such that Shields Lake achieves its lake water quality goal and a clear water state, which will reduce phosphorus loads to Forest Lake by up to 250 pounds/year.
This project was identified as a result of the Shields Lake Diagnostic Study.
The CLFLWD received a $824,000 Clean Water Fund (CWF) grant from the Board of Water and Soil Resources (BWSR). View the latest CWF grant report here.