Fish and Aquatic Life
This section of the Oconomowoc River is 9.5 miles long, stretching from Friess Lake to North Lake. Little Friess Lake (14 acres) and Lowes Lake (25 acres) are shallow, natural kettle lakes through which the river flows.
Two impoundments, Monches Millpond (16 acres) and Funks Millpond (31 acres) are very shallow, with low excessive algae growth and high turbidity. Funk's Dam was removed in 1992. Additional information and existing water quality data are available on the previous impoundment site from WDNR upon request.
Author Aquatic Biologist
Source: 1963, Surface Water Resources of Waukesha County Upper Oconomowoc Lake T8N, R17E, Section 35
A recent impoundment of the Oconomowoc River between Okauchee and Oconomowoc Lakes. Bass, pan fish and northern pike constitute the fishery. Access for launching is possible from a town road. The lake is bordered by an active subdivision and therefore, further shore development can be expected. This is one of the newer lakes in Wisconsin created for the express purpose of providing aquatic recreation and lake front housing.
Surface Acres = 42.8, S.D.F. 1.69, Maximum Depth = 11 feet
Author Surface Water Inventory Of Wisconsin
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
|Project Name (Click for Details)||Year Started|
|WBIC||Official Waterbody Name||Station ID||Station Name||Earliest Fieldwork Date||Latest Fieldwork Date||View Station||View Data|
|850100||Upper Oconomowoc Lake||10017600||Upper Oconomowoc Lake -- Access||7/16/2004||7/22/2020||Map||Data|
|850300||Okauchee Lake||10017617||Okauchee Lake -- Access Nr End Of Road T||10/5/2004||7/1/2020||Map||Data|
|848200||Oconomowoc River||683446||Oconomowoc River - Near Oconomowoc WI||4/17/2002||9/24/2002||Map||Data|
|850100||Upper Oconomowoc Lake||10039092||Upper Oconomowoc Lake near Oconomowoc WI||4/17/2002||9/24/2002||Map||Data|
|850100||Upper Oconomowoc Lake||10007252||Upper Oconomowoc Lake||6/1/1995||9/22/2017||Map||Data|
|850100||Upper Oconomowoc Lake||10051531||Occonomowoc Lake - OL2||9/26/2018||10/4/2018||Map||Data|
|850100||Upper Oconomowoc Lake||10051532||Occonomowoc Lake - OL1||9/26/2018||10/4/2018||Map||Data|
|848200||Oconomowoc River||10017617||Okauchee Lake -- Access Nr End Of Road T||10/5/2004||7/1/2020||Map||Data|
Upper Oconomowoc Lake is located in the Oconomowoc River watershed which is 130.86 mi². Land use in the watershed is primarily agricultural (24.90%), forest (19.70%) and a mix of wetland (16.90%) and other uses (38.40%). This watershed has 136.99 stream miles, 2,858.66 lake acres and 11,105.19 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Not Available for runoff impacts on streams, Not Available 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.