Fish and Aquatic Life
Druid Lake is a deep (53 feet) 120-acre lake in southwest Washington County. The lake has very good water quality and has been classified as mesoeutrophic by USGS (WDNR, 1994). A lake protection district exists. Major threats to water quality are from nonpoint sources of water pollution from agricultural sources and from development around the lake. A large-scale purple loosestrife removal project, conducted by the Hartford Union High School, is in its 9th year.
Author Aquatic Biologist
Source: 1963, Surface Water Resources of Washington County Druid Lake - T9N, R18E, Sec. 6,
A shallow, unimpounded, drainage lake in a marshy valley in the Green Bay terminal moraine. Panfish and walleyes constitute the fishery, and carp are abundant and a major use problem. The water is generally turbid throughout the summer, somewhat detracting from the value for aesthetics and swimming. Publicaccess is afforded by a narrow gravelled town road; Parking space is limited. There are no boat liveries. A belt of-wetland lies contiguous with the Ashippun River both above and below the lake. Hunting is permitted and limited numbers of puddle ducks provide some fall shooting.
Surface Acres = 124, S.D.F. = 1.09, Maximum Depth = 40 feet.
Author Surface Water Inventory Of Wisconsin
Druid Lake (WBIC 855200) was placed on the impaired waters list for excess algal growth in 2014. This water was assessed during the 2018 listing cycle; new total phosphorus and chlorophyll-a sample data were clearly below the 2018 WisCALM listing thresholds for the Recreation use and the Fish and Aquatic Life use. This water was meeting these designated uses and was not considered impaired. This water was proposed for delisting in 2018.
Author Ashley Beranek
Druid Lake (855200) was placed on the impaired waters list for excess algal growth in 2014. The 2016 assessments showed continued excess algal growth; chlorophyll sample data exceed 2016 WisCALM listing thresholds for the Recreation use, however, total phosphorus were clearly below REC thresholds. Total phosphorus and chlorophyll data were clearly below Fish and Aquatic Life listing 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.
Phase 3 of Lake Classification Project. Public Hearing and Ordinance revision adoption for the lakes in Washington County. Dissemination of proposed ordinance changes to the other local units of government. Enforcement of revised zoning provisions related to shorelands, wetlands, and floodlands through current channels. Information to public of changes in Washington County codes by meetings, publicity, pamphlets, and brochures.
Aquatic Invasive Species Removal
A continuation project with the efforts of Druid Lake P&R District and Hartford Union High School. These groups are doing the removal of purple loostrife by cutting, use of beetles, and planting native vegetation. Opening outlets and making a spawning bed should restore large mouth bass population.
Aquatic Invasive Species Removal
The Druid Lake Protection and Rehabilitation District will identify purple loosestrife and treat by spot application of Rodeo. Haul out and cut weed, dry and burn at appropriate location.
Through this project Washington County will develop a waterbody classification system; review and revise shoreland-wetland and floodplain ordinances; and refine the ordinance provisions governing shorelands, wetlands and floodlands, incorporating the waterbody classification into them.
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|
|855200||Druid Lake||673120||Druid Lake - Deep Hole||5/11/1973||9/6/2022||Map||Data|
|855200||Druid Lake||673223||Druid Lake - Near Hartford WI||5/14/1997||8/16/2022||Map||Data|
|855200||Druid Lake||10014864||Druid Lake Electro||Map||Data|
|855200||Druid Lake||10017621||Druid Lake -- Access||4/6/2011||8/5/2022||Map||Data|
|855200||Druid Lake||10007168||Druid Lake||7/27/1999||3/23/2023||Map||Data|
Druid Lake is located in the Ashippun River watershed which is 68.70 mi². Land use in the watershed is primarily agricultural (41.60%), grassland (21.20%) and a mix of wetland (18.60%) and other uses (18.60%). This watershed has 108.43 stream miles, 327.41 lake acres and 7,663.77 wetland acres.
Nonpoint Source Characteristics
This watershed is ranked Not Ranked 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.