Fish and Aquatic Life
Viola Lake, in the North Fork Clam River Watershed, is a 265.43 acre lake that falls in Burnett County. This lake is managed for fishing and swimming and is currently not considered impaired.
Author Aquatic Biologist
Source: 1966, Surface Water Resources of Burnett County
Viola Lake, T38, 39N, R15W, Sections 5, 6, 31, 32
Surface Acres = 262.0, Maximum Depth = 33 feet, M.P.A. =12 ppm,
Secchi Disk= 15 feet
A soft water, seepage lake, landlocked, having a fish
population of northern pike, walleye, largemouth bass, bluegill,
perch, black crappie, pumpkinseed, green sunfish, bullhead and
white sucker. Stunted panfish are a management problem. A
difficult access without parking is provided on the east side of
the southwest bay. This access and an undeveloped platted
access'., provide the only public frontage. Private
developmentconsists of three resorts and 41 cottages and homes.
Lakeshore vegetation is upland hardwoods and pine except for a
spruce swamp in the southeast end which provides habitat for
nesting puddle ducks. Diving ducks and puddle ducks also use the
lake during migratory periods.
Author Surface Water Inventory Of Wisconsin
Viola Lake (2598600) was assessed during the 2016 listing cycle; total phosphorus and chlorophyll sample data were clearly below 2016 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use. This water is meeting these designated uses and is not considered impaired.
Author Ashley Beranek
Wisconsin has over 84,000 miles of streams, 15,000 lakes and milllions of acres of wetlands. Assessing the condition of this vast amount of water is challenging. The state's water monitoring program uses a media-based, cross-program approach to analyze water condition. An updated monitoring strategy (2015-2020) is now available. Compliance with Clean Water Act fishable, swimmable standards are located in the Executive Summary of Water Condition in 2018. See also the 'monitoring and projects' tab.
Wisconsin's Water Quality Standards provide qualitative and quantitative goals for waters that are protective of Fishable, Swimmable conditions [Learn more]. Waters that do not meet water quality standards are considered impaired and restoration actions are planned and carried out until the water is once again fishable and swimmable
Management goals can include creation or implementation of a Total Maximum Daily Load analysis, a Nine Key Element Plan, or other restoration work, education and outreach and more. If specific recommendations exist for this water, they will be displayed below online.
Monitoring the condition of a river, stream, or lake includes gathering physical, chemical, biological, and habitat data. Comprehensive studies often gather all these parameters in great detail, while lighter assessment events will involve sampling physical, chemical and biological data such as macroinvertebrates. Aquatic macroinvertebrates and fish communities integrate watershed or catchment condition, providing great insight into overall ecosystem health. Chemical and habitat parameters tell researchers more about human induced problems including contaminated runoff, point source dischargers, or habitat issues that foster or limit the potential of aquatic communities to thrive in a given area. Wisconsin's Water Monitoring Strategy was recenty updated.
Grants and Management Projects
|WBIC||Official Waterbody Name||Station ID||Station Name||Earliest Fieldwork Date||Latest Fieldwork Date||View Station||View Data|
|2598600||Viola Lake||10046758||Phragmites Occurrence - Viola||8/14/2015||9/12/2017||Map||Data|
|2598600||Viola Lake||10018184||Viola Lake -- Access||8/1/2008||9/25/2021||Map||Data|
|2598600||Viola Lake||073100||Viola Lake - Deep Hole||7/10/1987||10/9/2021||Map||Data|
|2598600||Viola Lake||10001854||Viola Lake||9/5/2000||7/1/2021||Map||Data|
Viola Lake is located in the North Fork Clam River watershed which is 173.51 mi². Land use in the watershed is primarily forest (58.20%), wetland (13.30%) and a mix of agricultural (13.30%) and other uses (15.20%). This watershed has 231.66 stream miles, 3,278.77 lake acres and 12,359.27 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Not Ranked for runoff impacts on streams, Low for runoff impacts on lakes and Low for runoff impacts on groundwater and therefore has an overall rank of Low. This value can be used in ranking the watershed or individual waterbodies for grant funding under state and county programs.However, all waters are affected by diffuse pollutant sources regardless of initial water quality. Applications for specific runoff projects under state or county grant programs may be pursued. For more information, go to surface water program grants.