Lake Name:

a lake.
Contact information
For information on Lakes in Wisconsin, contact:
Wisconsin DNR Lakes
Division of Water
Bureau of Water Quality
DNR Contacts for Long Lake

Long Lake Of Phelps Lake District [exit DNR]

Poh-Wah-Gom Landowners Association [exit DNR]

Find A Lake > Vilas County > Long Lake

Long Lake
Vilas County, 886 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 45 (Mesotrophic) and was determined using chlorophyll data. For a Two-Story lake, this is considered Good.

Long Lake was monitored by volunteers between 1988 and 2019. 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
Long Lake - Deep Hole643080Map2022Details
Long Lake-Herbicide Monitoring Site L310053827Map2020Details
Long Lake-Herbicide Monitoring Site L410053828Map2020Details