Fish and Aquatic Life
Big Twin Lake, in the Big Green Lake Watershed, is a 73.90 acre lake that falls in Green Lake County. This lake is managed for fishing and swimming and is currently considered impaired.
Author Ashley Beranek
Source: 1971, Surface Water Resources of Green Lake County Twin Lake, Big T-15-N, R-13-E, Sections 5, 8 Surface Acres = 78.3; S.D.F. = 1.73 Maximum Depth = 46 feet.
Big Twin is one of two small lakes located one mile south of Big Green Lake. There is an intermittent inlet and a ditch that connects it with Little Twin Lake. Littoral bottom materials consist of marl, muck, sand, and gravel. Peat is also present. Access is available via a county park with picnic area, parking, and improved boat ramp. Twin Lake supports a sport fishery of largemouth bass, walleye, northern pike, perch, bluegill, and white sucker. Prior to 1963, it was over populated by carp causing turbid water and poor fishing. Following rehabilitation fishing improved. Many ducks use the lake for nesting and as a resting area during migration. Geese, grebes, and muskrats also use the lake extensively. A local ordinance prohibits the use of motors larger than 71/2 horsepower on either lake. A 21/2 m.p.h. speed limit has been established in the channel connecting Big and Little Twin.
Author Surface Water Inventory Of Wisconsin
Big Twin Lake (146500) was placed on the impaired waters list for total phosphorus in 2014. The 2016 assessments showed continued impairment by phosphorus; total phosphorus and chlorophyll sample data exceeded 2016 WisCALM listing thresholds for the Recreation use. Total phosphorus and chlorophyll data do not exceed Fish and Aquatic Life thresholds. Based on the most updated information, no change in existing impaired waters listing is needed.
Author Aaron Larson
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.
Shoreland Monitoring, Assessment, Inventory
Green Lake County will conduct a land use and environmental resource inventory of the watershed surrounding Green Lake, Little Green Lake, and Lake Puckaway. The information from the study will be used to update the existing zoning and shoreland protection ordinances and to assess the need for a storm water management ordinance in the County, the stormwater management ordinance, if its need is determined, will be written
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|
|146500||Big Twin Lake||243018||Big Twin Lake - Deepest Part||6/23/2004||9/26/2019||Map||Data|
|146500||Big Twin Lake||10019477||Big Twin Lake -- Access||1/31/2005||6/19/2020||Map||Data|
|146500||Big Twin Lake||10002713||Big Twin Lake||7/27/1999||6/19/2020||Map||Data|
Big Twin Lake is located in the Big Green Lake watershed which is 107.31 mi². Land use in the watershed is primarily agricultural (54.10%), open (12%) and a mix of grassland (10.10%) and other uses (23.70%). This watershed has 141.08 stream miles, 655.29 lake acres and 5,102.67 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.