Washington
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Fish and Aquatic Life
Overview
Wallace Lake, in the North Branch Milwaukee River Watershed, is a 54.20 acre lake that falls in Washington County. This lake is managed for fishing and swimming and is currently not considered impaired.
Date 2011
Author Aquatic Biologist
Historical Description
Water Resources. The Wallace Lake Subwatershed contains Wallace Lake, Lake Lenwood (Beinke) and a short reach
of stream connecting the two lakes. Wallace Lake is a 50-acre kettle lake with a maximum depth of 35 feet. A screen
outlet structure is present. Nearly all of the shoreline has been developed as year-round homes. Public access is
available with limited parking. Lenwood Lake is also a kettle lake with a surface area of 14 acres and maximum depth
of 35 feet. Outflow of Lenwood Lake flows to Wallace Lake. Water level is maintained by an outlet control
structure.
Up until 1985-86, malfunctioning septic systems were contributing to lake eutrophication and unhealthy condltiona En
Wallace Lake. The lake has since been sewered, the wastewater being treated at West Bend. Btimated phmp
loading to Wallace Lake is less than that calculated to be "excessive" but higher than that considered ''a~ept;ible~''
Wallace Lake experiences summertime algal blooms that occasionally become a nuisance.
Wallace Lake supports full-body contact recreation.
There is no public access to Lake Lenwood and no other fish or water quality information is currently available.
No toxic screening has been conducted on streams in this drainage system.
Fisheries. Wallace Lake currently supports a warm-water sport fishery, dominated by largemouth bass and bluegil
However, overharvest of bass has lead to a poor fishery on this species and stunted panfish population.
habitat quality are generally good and will likely benefit from recent sewer extensions to riparian homes. The primary
habitat concern is the protection and wise management of the natural aquatic vegetation which is currently threatened
by the expansion of the introduced Eurasian watermilfoil. Overly dense stands of a single species of vegetation provide
poor fish habitat.
Date 1990
Author Surface Water Inventory Of Wisconsin
Historical Description
Source: 1963, Surface Water Resources of Washington County Wallace lake T11N, R20E, Sec. 6, Surface Acres = 50, S.D.F. = 1.72, Maximum Depth 35 feet.
A small, kettle lake in the terminal moraine of the Lake Michigan glacier. The lake has a small inlet from Lenwood Lake, but is primarily spring fed, and drains into a small stream tributary to the Milwaukee River. A screened concrete structure was placed on the outlet in 1959 to prevent interchange of fishes between the lake and stream. Present management centers on trout. Previously this was a largemouth bass, panfish, northern pike lake. Public access is provided by a town road ending at the lake; however, parking is inadequate. Nearly complete development of the shore for home sites detracts from any possible value for waterfowl and hunting.
Date 1963
Author Surface Water Inventory Of Wisconsin
Condition
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.
Reports
Recommendations
Lake Classification
Phase 3 of Lake Classification Project. Public Hearing and Ordinance revision adoption for the lakes in Washington County. Dissemination of proposed ordinance changes to the other local units of government. Enforcement of revised zoning provisions related to shorelands, wetlands, and floodlands through current channels. Information to public of changes in Washington County codes by meetings, publicity, pamphlets, and brochures.
Lake Classification
Through this project Washington County will develop a waterbody classification system; review and revise shoreland-wetland and floodplain ordinances; and refine the ordinance provisions governing shorelands, wetlands and floodlands, incorporating the waterbody classification into them.
Management Goals
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
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
Monitoring Projects
| WBIC | Official Waterbody Name | Station ID | Station Name | Earliest Fieldwork Date | Latest Fieldwork Date | View Station | View Data |
|---|
| 28300 | Wallace Lake | 10018016 | Wallace Lake -- Access | 4/11/2011 | 6/23/2023 | Map | Data |
| 28300 | Wallace Lake | 674004 | Wallace Lake - Wallace Lake | 9/6/1979 | 9/6/1979 | Map | Data |
| 28300 | Wallace Lake | 10007138 | Wallace Lake | 6/1/1988 | 6/20/2022 | Map | Data |
|
Watershed Characteristics
Wallace Lake is located in the North Branch Milwaukee River watershed which is 149.67 mi². Land use in the watershed is primarily agricultural (45.40%), grassland (20.30%) and a mix of wetland (15.50%) and other uses (18.80%). This watershed has 159.81 stream miles, 886.38 lake acres and 13,793.69 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.