Fish and Aquatic Life
Big Slough, in the Neenah Creek Watershed, is a 10.77 mile river that falls in Columbia County. This river is managed for fishing and swimming and is currently not considered impaired.
Author Aquatic Biologist
Big Slough T13N, R8E, Sections 4 & 9, Surface Acres = 50.4, Miles = 8.0, Gradient = less than 0.2 feet per mile.
A wide slow moving stream tributary to Neenah Creek. During peak
runoff periods, the stream floods. Formerly, it connected the Fox and Wisconsin
River systems, since all adjoining lands are flat and marshy. Northern pike,
largemouth bass, bluegills and black crappies constitute the fishery. Carp are
present in problem numbers. One town road provides limited access. Over
1, 580 acres of wetland adjoining the stream. It is possible to enter the stream by boat from Neenah Creek.
From: Poff, Ronald J. and C.W. Threinen, 1965. Surface Water Resources of Columbia County:
Lake and Stream Classification Project. Wisconsin Department of Conservation, Madison, WI.
Author Surface Water Inventory Of Wisconsin
The 2018 assessments of Big Slough showed impairment by phosphorus; new total phosphorus sample data exceeded the 2018 WisCALM listing criteria for the Fish and Aquatic Life use. Biological data (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scores) were not available to assess biological impairment. Based on the most updated information, this water was proposed for the impaired waters list.
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|
|174500||Big Slough||10029050||Big Slough - Egan property||7/31/2008||7/31/2008||Map||Data|
|174500||Big Slough||113069||Big Slough - Malisch Rd||4/24/1980||10/30/2015||Map||Data|
|174500||Big Slough||10017290||Big Slough||10/1/1980||10/1/1980||Map||Data|
|174500||Big Slough||113161||Big Slough at County Rd X||Map||Data|
|5581668||Unnamed||10029049||Big Slough - Hwy 127||7/31/2008||7/31/2008||Map||Data|
|174500||Big Slough||10018042||Big Slough -- Public Access||9/30/2013||9/30/2013||Map||Data|
Big Slough is located in the Neenah Creek watershed which is 173.35 mi². Land use in the watershed is primarily forest (38.20%), agricultural (30.80%) and a mix of wetland (14.80%) and other uses (16.20%). This watershed has 198.75 stream miles, 2,104.14 lake acres and 14,499.98 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Not Available 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.