Fish and Aquatic Life
Shadow Lake is a clear, hard water drainage basin located within the City of Waupaca. The inlet stream originates in Mirror Lake located a very short distance to the north, while outlet flows directly into the Crystal River. Both inlet and outlet are navigable. Marl is the predominant littoral bottom material present. Lesser amounts of sand and gravel are also found. Northern pike, largemouth bass, black crappie, pumpkinseed, bluegill, warmouth, perch, redhorse, and white sucker are present. Carp are sufficiently abundant to be a problem and therefore a chemical treatment project is planned for 1971. The lake will then be stocked with desirable species. Because the lake is located near much human activity, waterfowl and other game species make little use of the water. Lawnsand Beach, a city owned beach and picnic facility, encompasses nearly 50 percent of the shoreline. This park has an improved boat launching facility. Access without parking is available from County Highway K. Other developments on the lake include nine homes, one boat livery, and one church seminary. Because use conflicts between fishermen, swimmers, and boaters have arisen in the past, the City of Waupaca has imposed a five m.p.h. speed limit on all boats using Shadow Lake.
Source: 1971, Surface Water Resources of Waupaca County Shadow Lake, T22N, R12E, Sections 30, 31 Surface Acres = 42.2, S.D.F. = 1.25, Maximum Depth = 38 feet.
Author Aquatic Biologist
Shadow Lake (WBIC 258600) was assessed during the 2018 listing cycle; new chloride sample data were clearly below the 2018 WisCALM listing thresholds for Fish and Aquatic Life use. This water was meeting this designated use and was 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|
|258600||Shadow Lake||10019310||Shadow Lake -- Access||6/4/2011||9/6/2011||Map||Data|
|258600||Shadow Lake||10019309||Shadow Lake -- Access||5/26/2012||6/17/2019||Map||Data|
|258600||Shadow Lake||10007314||Shadow Lake||7/27/1999||7/9/2019||Map||Data|
|258600||Shadow Lake||693034||Shadow Lake - Deep Hole||4/12/1977||4/25/2020||Map||Data|
Shadow Lake is located in the Waupaca River watershed which is 290.77 mi². Land use in the watershed is primarily forest (43.70%), agricultural (30.40%) and a mix of grassland (14%) and other uses (11.80%). This watershed has 231.34 stream miles, 2,456.10 lake acres and 14,124.68 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Medium 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.