Shea Lake, East Twin River Watershed (TK02)
Shea Lake, East Twin River Watershed (TK02)
Shea Lake (85400)
31.52 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 Seepage
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.
2018
Poor
 
Kewaunee
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.
No
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.
No
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.
No

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 Seepage
Deep seepage lake describes the depth and hydrologic charactertistics of the lake. 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.
FAL
Fish and Aquatic Life - waters that do not have a specific use designation subcategory assigned but which are considered fishable, swimmable waters.
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.

Overview

Shea Lake is a 31-acre eutrophic seepage lake with a maximum depth of 24 feet. The lake is extremely
productive, with excessive vegetation problems due to nutrient input from nonpoint sources of water
pollution. Failing cottage septic systems are likely an additional source of nutrients. The deeper portions of the lake have low dissolved oxygen problems during stratification and the lake winterkills frequently. The fishery consists of largemouth bass, northern pike and panfish. The northern shore is buffered be extensive wetlands. Rooted aquatic plants, primarily Potamogeton sp., were abundant during a 1992 field survey. Public access on the southwest shore is provided by a county park with a picnic area, restrooms, boat launch (no motors) and parking.

Date  2002

Author   Aquatic Biologist

Historical Description

Source: 1966, Surface Water Resources of Kewaunee County Shea Lake T22N, R23E, Section 31 Surface Acres = 30.0, S.D.F. = 1.28, Maximum Depth = 22 feet.

A brown water seepage lake of moderate alkalinity which drains by a channel to Engledinger Lake and eventually Jambo Creek. Northern pike, largemouth bass, bullheads, black crappies, and yellow perch constitute the fishery. Stunted panfish and excessive fertilization by agricultural runoff are considered use problems. There is public access by way of a recently acquired easement. Duck blinds were noted, attesting to some value for waterfowl. Over 240 acres of primarily wooded wetland adjoin the lake.

Date  1966

Author   Surface Water Inventory Of Wisconsin

Shea Lake, East Twin River Watershed (TK02) Fish and Aquatic LifeShea Lake, East Twin River Watershed (TK02) RecreationShea Lake, East Twin River Watershed (TK02) Fish Consumption

Impaired Waters

Shea Lake was recently evaluated during the ten-year period of 2009 through 2018 for results that were reported to the USEPA for the 2020 Clean Water Act condition report. The waterbody is considered impaired, or in poor condition for designated uses which include the quality of fish and aquatic life, recreational use, and public health and welfare (fish consumption and related). Pollutants or problems encountered during sampling (impairments) are determined based on water quality standards outlined in Wisconsin 2020 Consolidated Assessment and Listing Methodology (WisCALM). Assessment results show water conditions that are potentially harmful for Aquatic Life and Recreation uses due to values for total phosphorus and chlorophyll that fall into the range expected for an aquatic community in poor health, therefore this water is listed as impaired.

Assessment results during the 2020 listing cycle show impairment by overwhelmingly high total phosphorus levels. Chlorophyll was also assessed and found to be inappropriate for Recreation use, but may meet Aquatic Life use standards. Based on the most updated information, this water was proposed for the impaired waters list in 2020.

Date  2019

Author  Ashley Beranek

Condition

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.

Reports

Recommendations

Lake Classification
Kewaunee County proposes to conduct a county-wide inventory, analysis and classification of its surface water resources with the intent to develop a comprehensive land use and resource protection plan. This grant will go to aid in the development of that plan that pertains to the Krohn's and Three Mile/Alaska Lakes and watersheds and will address ordinance concerns specific to the needs of those lake resources. A public involvement and education program will be developed and accompany project development.

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

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

Shea Lake is located in the East Twin River watershed which is 183.58 miĀ². Land use in the watershed is primarily agricultural (57.30%), grassland (16.50%) and a mix of wetland (14.70%) and other uses (11.50%). This watershed has 314.70 stream miles, 12,446.75 lake acres and 14,181.41 wetland acres.

Nonpoint Source Characteristics

This watershed is ranked High for runoff impacts on streams, High 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.

Natural Community

Shea Lake is considered a Deep Seepage 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 seepage lake describes the depth and hydrologic charactertistics of the lake. These variables affect the lakes response to watershed variables.

Fish Stocking