Fish and Aquatic Life
Callahan Lake, in the Lake Chippewa Watershed, is a 138.41 acre lake that falls in Sawyer County. This lake is managed for fishing and swimming and is currently considered impaired.
Author Aquatic Biologist
Source: 1969, Surface Water Resources of Sawyer County Callahan Lake, T41N, R7W, Section 28, 33, 34
A soft water, drainage lake on the North Fork of the Chief River. The estimated outlet flow is 10.0 cfs and the lake is impounded by a two-foot head control structure. The common fish species are muskellunge, largemouth bass, bluegills, black crappies, pumpkinseeds and bullheads. Also present are walleyes and rock bass. The majority of the lakeshore is upland however, on the west shore at the inlets from Mud lake, there is an extensive tamarack bog adjoining the lake. Common nesting waterfowl here include mallards, black ducks, bluewing teal, wood ducks, mergansers and loon. There are four resorts and boat rental places and eleven cottages. A public access is located on the north shore and another near the dam; there is no other public frontage.
Surface Acres = 156.3, Maximum Depth = 16 feet, M.P.A. = 45 ppm Secchi Disk = 7 feet
Author Surface Water Inventory Of Wisconsin
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.
Monitor Fish Tissue
Train Volunteers to Do Watercraft Inspections
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|
|2434700||Callahan Lake||10005655||Callahan Lake||9/5/2000||9/12/2017||Map||Data|
|2434700||Callahan Lake||584005||Callahan Lake - Deepest Spot||7/20/1979||9/29/2020||Map||Data|
|2434700||Callahan Lake||10033670||Callahan Lake - Resort Landing||6/4/2011||7/4/2011||Map||Data|
|2434700||Callahan Lake||10033669||Callahan Lake - Woodhaven Resort Boat Landing||5/28/2011||7/30/2011||Map||Data|
Callahan Lake is located in the Lake Chippewa watershed which is 182.90 mi². Land use in the watershed is primarily forest (69.10%), open (16.50%) and a mix of wetland (12.70%) and other uses (1.60%). This watershed has 117.68 stream miles, 4,827.59 lake acres and 14,304.38 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Low 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.