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For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for Big Sand Lake

Big Sand Lake Property Owners Association [exit DNR]

Poh-Wah-Gom Landowners Association [exit DNR]

Find A Lake > Vilas County > Big Sand Lake

Big Sand Lake
Vilas County, 1427 Acres


Water Quality

One measure of a lakes health is the trophic state, which relates to the amount of algae in the water. The average summer trophic state for the last 5 years was 53 (Eutrophic) and was determined using chlorophyll data. For a Deep Lowland lake, this is considered Good. Deep Lowland lakes stratify, or form separate layers of water, during the summer months and have watersheds greater than 4 square miles in area.

Big Sand Lake has been monitored by volunteers since 1992. Volunteers monitor water clarity with a black and white Secchi disk. Some also collect water samples, which are sent to the State Lab of Hygiene to be analyzed. Volunteers are the source of the majority of Wisconsin's lake water quality data, and their dedication is greatly appreciated. Additional monitoring has been done through projects funded in part by DNR Aquatic Invasive Species Grants. Reports and graphs featuring data collected by volunteers, DNR staff and others can be viewed below.

Water Quality Reports and Graphs

Station NameStation IDMapMax YearReports
Big Sand Lake (Residual Study Point 1)10029102Map2008Details
Big Sand Lake (Residual Study Point 10)10029111Map2008Details
Big Sand Lake (Residual Study Point 2)10029103Map2008Details
Big Sand Lake (Residual Study Point 3)10029104Map2008Details
Big Sand Lake (Residual Study Point 4)10029105Map2008Details
Big Sand Lake (Residual Study Point 5)10029106Map2008Details
Big Sand Lake (Residual Study Point 6)10029109Map2008Details
Big Sand Lake (Residual Study Point 7)10029108Map2008Details
Big Sand Lake (Residual Study Point 8)10029107Map2008Details
Big Sand Lake (Residual Study Point 9)10029110Map2008Details
Big Sand Lake - Deep Hole643125Map2019Details
Big Sand Lake - Eastern Part Of Lake10043895Map2015Details
Big Sand Lake - Western Part Of Lake10043896Map2015Details