Sawyer
No
No
No
Fish and Aquatic Life
Overview
Gurno Lake, in the Couderay River Watershed, is a 76.22 acre lake that falls in Sawyer County. This lake is managed for fishing and swimming and is currently not considered impaired.
Date 2011
Author Aquatic Biologist
Historical Description
Source: 1969, Surface Water Resources of Sawyer County Gurno Lake, T40N, R8W, Section 33
A soft water seepage lake, landlocked, but with a permanent inlet stream of about 0.6 cfs. on the east shore. There is also an occasional intermittent flowing inlet from nearby Indian Lake. The fish population includes muskellunge and walleyes, but more common are the largemouth bass, perch, and black crappies. Alsopresent are bluegill, pumpkinseed, and bullheads. Slow-growing panfish are a management problem. Shore vegetation is predominantly upland hardwood with some pine and grass upland. Three small connecting ponds to the intermittent inlet stream provide an extensive sedge meadow for nesting ducks. Private development includes four cottages and a boat rental. There is no public frontage or access road to the lake.
Surface Acres = 85.7, Maximum Depth = 21 feet, M.P.A. = 17 ppm, Secchi Disk = 9 feet
Date 1969
Author Surface Water Inventory Of Wisconsin
General Condition
Gurno Lake (2448000) was assessed during the 2016 listing cycle; total phosphorus and chlorophyll sample data were clearly below Fish and Aquatic Life use listing thresholds. This water is meeting this designated use and is not considered impaired.
Date 2015
Author Ashley Beranek
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
| Project Name (Click for Details) | Year Started |
|---|
|
|
Monitoring Projects
| WBIC | Official Waterbody Name | Station ID | Station Name | Earliest Fieldwork Date | Latest Fieldwork Date | View Station | View Data |
|---|
| 2448000 | Gurno Lake | 10005670 | Gurno Lake | 9/5/2000 | 9/12/2017 | Map | Data |
| 2448000 | Gurno Lake | 10039028 | Gurno Lake (GUR-1) | 6/17/2008 | 9/11/2023 | Map | Data |
|
Watershed Characteristics
Gurno Lake is located in the Couderay River watershed which is 212.25 mi². Land use in the watershed is primarily forest (64.90%), wetland (13.50%) and a mix of open (12.90%) and other uses (8.70%). This watershed has 211.96 stream miles, 18,300.76 lake acres and 14,697.69 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Low for runoff impacts on streams, High 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.