Bone Lake T35n R16w S06, Upper Apple River Watershed (SC06)
Bone Lake T35n R16w S06, Upper Apple River Watershed (SC06)
Bone Lake T35n R16w S06 (2628100)
1666.62 Acres
Natural Community
Natural communities (stream and lake natural communities) represent model results that use predicted flow and temperature based on landscape features and related assumptions. Ranges of flow and temperature associated with specific aquatic life communities (fish, macroinvertebrates) help biologists identify appropriate resource management goals. Wisconsin Natural Communities.
Deep Lowland
Year Last Monitored
This is the most recent date of monitoring data stored in SWIMS. Additional surveys for fish and habitat may be available subsequent to this date.
This lake is impaired
Impairment Unknown, Excess Algal Growth
Total Phosphorus
Trout Water 
Trout Waters are represented by Class I, Class II or Class III waters. These classes have specific ecological characteristics and management actions associated with them. For more information regarding Trout Classifications, see the Fisheries Trout Class Webpages.
Outstanding or Exceptional 
Wisconsin has designated many of the state's highest quality waters as Outstanding Resource Waters (ORWs) or Exceptional Resource Waters (ERWs). Waters designated as ORW or ERW are surface waters which provide outstanding recreational opportunities, support valuable fisheries and wildlife habitat, have good water quality, and are not significantly impacted by human activities. ORW and ERW status identifies waters that the State of Wisconsin has determined warrant additional protection from the effects of pollution. These designations are intended to meet federal Clean Water Act obligations requiring Wisconsin to adopt an 'antidegradation' policy that is designed to prevent any lowering of water quality - especially in those waters having significant ecological or cultural value.
Impaired Water 
A water is polluted or 'impaired' if it does not support full use by humans, wildlife, fish and other aquatic life and it is shown that one or more of the pollutant criteria are not met.

Fish and Aquatic Life

Current Use
The use the water currently supports. This is not a designation or classification; it is based on the current condition of the water. Information in this column is not designed for, and should not be used for, regulatory purposes.
Deep Lowland
Deep lowland lake describes the depth and location of the lake in a watershed. These variables affect the lakes response to watershed variables.
Attainable Use
The use that the investigator believes the water could achieve through managing "controllable" sources. Beaver dams, hydroelectric dams, low gradient streams, and naturally occurring low flows are generally not considered controllable. The attainable use may be the same as the current use or it may be higher.
Streams capable of supporting a warm waterdependent sport fishery. Representative aquatic life communities associated with these waters generally require cool or warm temperatures and concentrations of dissolved oxygen that do not drop below 5 mg/L.
Designated Use
This is the water classification legally recognized by NR102 and NR104, Wis. Adm. Code. The classification determines water quality criteria and effluent limits. Waters obtain designated uses through classification procedures.
Default FAL
Fish and Aquatic Life - Default Waters do not have a specific use designation subcategory but are considered fishable, swimmable waters.


Bone Lake has an excellent fishery with the muskellunge population one of the best in the district. The management alternatives for dealing with some of the trophic symptoms present on this lake have to be tempered with the caution necessary to preserve this high quality fishery resource. A high priority should be accorded this lake district for the development of long ange management plans which help the lake community to control the products of eutrophication in certain high-use areas but preserving the "sensitive areas" so necessary for the maintenance of the aquatic resource.

A lake management district was created around this lake in 1975. This large (1781 acres) lake has experienced abundant vegetation growths and periodic algae blooms for many years. The feasibility study completed in 1980 documented this eutrophic condition, with in-lake recycling of phosphorus from deep-water sediments targeted as the main nutrient source.

Date  1992

Author   Aquatic Biologist

Bone Lake T35n R16w S06, Upper Apple River Watershed (SC06) Fish and Aquatic LifeBone Lake T35n R16w S06, Upper Apple River Watershed (SC06) RecreationBone Lake T35n R16w S06, Upper Apple River Watershed (SC06) Fish Consumption

Impaired Waters

Bone Lake (WBIC 2628100) was placed on the impaired waters list for total phosphorus/excess algal growth in 2012. The 2018 assessments showed continued impairment by phosphorus; new total phosphorus sample data exceeded the 2018 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use. Chlorophyll-a sample data clearly exceeded the REC thresholds, but were nearly below the FAL use thresholds. Based on the most updated information, no change in the existing impaired waters listing was needed.

Date  2017

Author  Ashley Beranek

Impaired Waters

Bone Lake (2628100) was placed on the impaired waters list for total phosphorus/excess algal growth in 2012. The 2016 assessments showed continued excess algal growth; chlorophyll sample data exceed 2016 WisCALM listing thresholds for the Recreation use, however, total phosphorus did not exceed REC thresholds. Total phosphorus and chlorophyll data did not exceed Fish and Aquatic Life listing thresholds. Based on the most updated information, no change in existing impaired waters listing is needed.

Date  2015

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.



Lakes Protection Grant
Bone Lake Management District is sponsoring a Lake Protection grant to implement activities from their approved lake management plan. The specific project tasks include: 1) Design and install watershed BMPs; 2) Mini (10x35 foot) shoreline buffer restorations; 3) Design and install waterfront runoff projects; 4) ALUM dosage analysis; 5) Installation of woody habitat structures; 6) Establish Slow-No-Wake Ordinance; 7) Develop land protection strategy.
Monitor Wildlife
Shoreland Monitoring, Assessment, Inventory
Shoreland Monitoring, Assessment or Inventory
Monitoring Ecosystem
Lakes Planning Grant
Bone Lake Management District will implement recommendations described in its comprehensive management plan including activities to reduce erosion; improve habitat and water quality; and expand lake protection/restoration marketing. Activities include: 1) design/build retention basins; 2) restore shorelines and integrate shoreline woody habitat; 3) implement residential diversion/infiltration best management practices (e.g. berms, rain gardens, rain barrels); 4) continue informational/educational outreach efforts, including implementing waterfront runoff marketing plan.

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 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

Monitoring Projects

Watershed Characteristics

Bone Lake is located in the Upper Apple River watershed which is 195.43 miĀ². Land use in the watershed is primarily forest (45.90%), agricultural (16.40%) and a mix of wetland (15.70%) and other uses (22.10%). This watershed has 138.62 stream miles, 7,663.43 lake acres and 16,247.07 wetland acres.

Nonpoint Source Characteristics

This watershed is ranked Medium 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.This water is ranked High Lake for individual Lakes based on runoff problems and the likelihood of success from project implementation.

Natural Community

Bone Lake T35n R16w S06 is considered a Deep Lowland under the state's Natural Community Determinations.

Natural communities (stream and lake natural communities) represent model resultsand DNR staff valiation processes that confirm or update predicted conditions based on flow and temperature modeling from historic and current landscape features and related variables. Predicated flow and temperatures for waters are associated predicated fish assemblages (communities). Biologists evaluate the model results against current survey data to determine if the modeled results are corect and whether biological indicators show water quaity degradation. This analysis is a core component of the state's resource management framework. Wisconsin's Riverine Natural Communities.

Deep lowland lake describes the depth and location of the lake in a watershed. These variables affect the lakes response to watershed variables.