Fish and Aquatic Life
Krohns Lake has a surface area of 21 acres and a maximum depth of 38 feet. It is a spring-fed lake with fair to good water quality and good dissolved oxygen concentrations. The lake does receive some nutrient enrichment from watershed runoff although the shoreline is generally well-buffered. The fishery includes largemouth bass, northern pike, panfish, and rainbow and brown trout. Rainbow trout are stocked by WDNR. A county park provides a swimming beach, dock, boat launch (no motors) and parking.
Author Surface Water Inventory Of Wisconsin
Source: 1966, Surface Water Resources of Kewaunee County Krohns Lake, T24N, R25E, Section 5 Surface Acres = 21.1, S.D.F. = 1.63, Maximum Depth = 38 feet.
A small, moderately deep lake with intermittent drainage to Lake Michigan by way of Three Mile Creek. The water is brown in color, and a shallow thermocline develops in early summer. The shore is entirely wooded and the littoral zone is restricted by steep bottom slopes. A one acre county access site provides parking, launching, and picnicking opportunities, and is heavily used by swimmers. Boats may be rented at the lake. Largemouth bass, panfish (notably bluegills, and yellow perch), and rainbow and brown trout constitute the fishery. Medium numbers of waterfowl use the lake in spring and fall and some nesting has been observed. There are no adjoining wetlands.
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|
|94700||Krohns Lake||10003117||Krohns Lake||4/6/1986||4/13/2022||Map||Data|
|94700||Krohns Lake||10019460||Krohns Lake -- Access at Park Nr Cty Kk||6/5/2010||7/15/2015||Map||Data|
|94700||Krohns Lake||313030||Krohns Lake - Middle||2/9/1976||7/16/2021||Map||Data|
Krohns Lake is located in the Ahnapee River watershed which is 135.58 mi². Land use in the watershed is primarily agricultural (49.80%), wetland (19.80%) and a mix of grassland (19.50%) and other uses (10.80%). This watershed has 189.28 stream miles, 5,768.81 lake acres and 15,037.67 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked High for runoff impacts on streams, Not Ranked 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.
This watershed is 50.00% impervious.