3.1 Water Quality
- Lake Minnewashta
currently has excellent water quality, although it slightly exceeds the total
phosphorus concentration goal established in the HHPLS. It
meets state standards for total phosphorus, clarity, chlorophyll-a, and
Trophic State Index (TSI). Lake Virginia exceeds its total
phosphorus goal, but meets or nearly meets clarity, chlorophyll-a, and Trophic
State Index (TSI) goals. Lake Virginia is listed as an Impaired
Water for excess nutrients, and a TMDL study is being completed as a
result. Limited data is available
Lake and Lake St.
Joe, and no total phosphorus goal was established in the HHPLS.
- Future development is not expected to
significantly impact Lake
Minnewashta. Some developing areas drain to Virginia and Tamarack, and nutrient and TSS loads as
well as volume of stormwater runoff are predicted to increase as a result,
potentially further degrading water quality in Lake Virginia.