Lake Emily Park Beach, Waupaca River Watershed (WR05)
Lake Emily Park Beach, Waupaca River Watershed (WR05)
Lake Emily Park Beach (189800)
0.06 Miles
0 - 0.06
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.
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.
Fish and Aquatic Life - waters that do not have a specific use designation subcategory assigned but which are considered fishable, swimmable waters.
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.
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.


Lake Emily is one of the more popular recreational lakes in Portage County. It is a moderately hard water seepage lake located one-half mile west of Amherst Junction. It is four times as long as it is wide, giving it the illusion of being smaller than it really is. Marl and sand are the primary bottom materials in the littoral zone with gravel and rubble areas also present. The bottom drops off very rapidly resulting in large areas of deep water. About 23 percent of the lake is greater than 20 feet deep. The lake develops a midsummer thermocline at about fifteen feet. The water is clear but subject to mild algae blooms. There is one intermittent inlet from. Mud Lake to the west. There is no outlet. Northern pike, walleye, perch, largemouth bass, bluegill, and black crappie are common. Rock bass, pumpkinseed, green sunfish, yellow bullhead, and white sucker are also present. Ducks use the lake for nesting and resting but not in large numbers. There is not much other wildlife use due to heavy development around the shore. There are approximately one hundred cottages on the lake. It is interesting to note that the shoreline owned by the county and leased to individuals is generally as overcrowded and overdeveloped as the privately owned lands, and in some areas of the lake even more so. Other facilities include a large county park with a sand beach, change houses, concession stand, picnic area, campground with electricity, playground, and deer pen. Boat launching areas are present on the east and the southwest shores. One boat livery and two resorts are also present. A local ordinance limits water skiing to an area west of the swimming beach and between the hours of 11:00 a.m. and 5:00 p.m. Motor speeds are limited to five miles per hour at all other times. Surface Acres-104.6, S.D.F.- 2.03, Maximum Depth-36 feet Source: 1972, Surface Water Resources of Portage County Lake Emily, T23N, R10E, Section 18,

Date  1972

Author   Aquatic Biologist

Lake Emily Park Beach, Waupaca River Watershed (WR05) Fish and Aquatic LifeLake Emily Park Beach, Waupaca River Watershed (WR05) RecreationLake Emily Park Beach, Waupaca River Watershed (WR05) Fish Consumption

General Condition

Emily Lake (189800) was assessed during the 2016 listing cycle; total phosphorus and chlorophyll sample data were clearly below 2016 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use. This water is meeting these designated uses and is not considered impaired.

Date  2015

Author  Ashley Beranek


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.


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

Lake Emily is located in the Waupaca River watershed which is 290.77 miĀ². Land use in the watershed is primarily forest (43.70%), agricultural (30.40%) and a mix of grassland (14%) and other uses (11.80%). This watershed has 231.34 stream miles, 2,456.10 lake acres and 14,124.68 wetland acres.

Nonpoint Source Characteristics

This watershed is ranked Medium 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.

Natural Community

Lake Emily Park Beach 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.