CLMP+ Report on Grass Lake (Anoka County)

The Minnesota Pollution Control Agency (MPCA) conducts and supports lake monitoring activities to determine if water quality supports recreational uses (swimming, wading, boating, etc.) of lakes, and to measure and compare regional differences and trends in water quality with lakes from all over the state. MPCA staff, local partners (Soil and Water Conservation Districts, watershed districts, tribal entities, etc.), and citizens all play a role in sampling lake water quality. As part of the MPCA's Advanced Citizen Lake Monitoring Program (CLMP+), Kristen Genet, Ph. D. and her class at Anoka Ramsey Community College measured water quality at Site 201 in Grass Lake from May through September in 2012 and 2013. Grass Lake is 35 acres in size and depth at sampling site was 1.5 meters (5 feet). Grass Lake is located in the town of Ramsey in Anoka County, Minnesota. CLMP+ volunteers measured water transparency, collected temperature and dissolved oxygen profiles weekly, and collected water chemistry samples monthly. This report provides a summary of the water quality data, and of other physical and ecological characteristics, of the lake (Figures 1 and 2).