Iron
No
Yes
Yes
Fish and Aquatic Life
Overview
Trude Lake is a soft water drained lake having slightly alkaline, light brown water of moderate transparency. The outlet is tributary to the Flambeau Flowage. A water control structure is located on the outlet having a head of approximately 6 feet. Sand is the predominant littoral material (60 percent) with muck (20 percent), gravel (10 percent) and rubble. The shoreline is predominantly upland (95 percent) with the balance being wetland of the meadow type. Muskellunge, northern pike, walleye, largemouth bass, perch, bluegill, black crappie, rock bass, pumpkinseed, bullhead, white sucker, and redhorse inhabit this lake. waterfowl, including Canada geese, utilize this lake on their migrations. Nesting waterfowl in all probability make some use of this area. Floating, emergent and submergent plants are moderate in density in various parts of the lake basin. There are six dwellings, one resort and a girls' camp located on the shoreline. Public access from a town road, crossing the outlet, is available with very limited parking and an unimproved facility. Water levels of Trude Lake are contingent upon levels maintained in the Flambeau Flowage; thus, regulation of the dam at the outlet is necessary to maintain satisfactory water levels in this lake. A temperature profile taken on July 8, 1963 revealed a temperature range of 73 degrees Fahrenheit at the surface to 49 degrees Fahrenheit at the bottom. The upper thermocline occurred at 12 feet.
Source:1970, Surface Water Resources of Iron County,WI:WI-DNR
Trude Lake, T42N, R3E, Section 18
Surface Acres = 754.3, S.D.F. - 1.66, Maximum Depth - 48 feet
Date 1970
Author Aquatic Biologist
Impaired Waters
Trude Lake (2295200) was placed on the impaired waters list for Mercury in fish tissue in 2002. This water was assessed during the 2016 listing cycle; total phosphorus and chlorophyll sample data were clearly below 2016 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use. This lake is considered impaired for Fish Consumption use and meeting REC and FAL uses.
Date 2015
Author Aaron Larson
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
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 |
|---|
| 2295200 | Trude Lake | 10002831 | Trude Lake | 8/29/2000 | 4/24/2025 | Map | Data |
| 2295200 | Trude Lake | 10019298 | Trude Lake -- Access | 8/21/2004 | 8/5/2022 | Map | Data |
| 2295200 | Trude Lake | 263052 | Turtle Flambeau Flowage - Trude Lake - Deep Hole | 5/5/1998 | 6/23/2025 | Map | Data |
|
Watershed Characteristics
Trude Lake is located in the Flambeau Flowage watershed which is 247.18 mi². Land use in the watershed is primarily forest (56.80%), wetland (28.20%) and a mix of open (14.10%) and other uses (0.90%). This watershed has 190.98 stream miles, 10,199.06 lake acres and 43,978.35 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Not Ranked for runoff impacts on streams, Not Ranked 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.