Fish and Aquatic Life
Heidmann Lake is a 24-acre seepage lake as deep as 34 feet. The lake has fair water quality and nutrient
enrichment is a problem. The deeper portions of the lake become anoxic in the summer and excessive weed
growth afflicts the shallower areas. The lake appears to be turning eutrophic. The fishery consists of northern
pike, largemouth bass and panfish. The lake has occasional winterkill problems. Public access and frontage
includes a beach, picnic area, and boat launching facilities. Wetlands surround the north shore while the south
and southeast shore is developed with cottages.
Author Aquatic Biologist
Source: 1966, Surface Water Resources of Kewaunee County Heidmann Lake, T22N, R23E, Section 28 (15) Surface Acres = 26.0, S.D.F. = 1.33, Maximum Depth = 30 feet.
A kettle lake with small bog shore and low-gradient outlet to Jambo Creek. The water is light brown and a thermocline develops at about 12 feet in early summer. A county park of 0.75 acres provides 200 feet of public frontage with limited parking, gravel launching ramp, and picnicking facilities. Cedars which ring the lake provide an aesthetic quality. The fishery is primarily northern pike, largemouth bass, and panfishes, with bluegills and black crappies abundant. Boats may be rented at the lake. Motors are not permitted, as per a posted town boat control ordinance.
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.
Kewaunee County proposes to conduct a county-wide inventory, analysis and classification of its surface water resources with the intent to develop a comprehensive land use and resource protection plan. This grant will go to aid in the development of that plan that pertains to the Krohn's and Three Mile/Alaska Lakes and watersheds and will address ordinance concerns specific to the needs of those lake resources. A public involvement and education program will be developed and accompany project development.
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|
|85200||Heidmann Lake||314001||Heidmann Lake - Deepest Area||8/5/1979||8/6/1979||Map||Data|
|85200||Heidmann Lake||10019461||Heidmann Lake -- Access at S Side Of Lake Nr Bolt Rd||6/28/2007||7/31/2016||Map||Data|
|85200||Heidmann Lake||10003111||Heidmann Lake||6/1/1993||8/30/2017||Map||Data|
|85200||Heidmann Lake||313031||Heidmann Lake - Deep Hole||2/9/1976||9/11/2017||Map||Data|
Heidmann Lake is located in the East Twin River watershed which is 183.58 mi². Land use in the watershed is primarily agricultural (57.30%), grassland (16.50%) and a mix of wetland (14.70%) and other uses (11.50%). This watershed has 314.70 stream miles, 12,446.75 lake acres and 14,181.41 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked High for runoff impacts on streams, High for runoff impacts on lakes and High for runoff impacts on groundwater and therefore has an overall rank of High. 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.