Mcpherson Branch, Platte River Watershed (GP02)
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Mcpherson Branch, Platte River Watershed (GP02)
Mcpherson Branch (951100)
1.50 Miles
0 - 1.50
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.
Cool-Cold Headwater, Coldwater
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.
2019
Fair
 
Grant
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.
Yes
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.
Supported Aquatic Life
Waters that support fish and aquatic life communities (healthy biological communities).
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.
Cold (Class I Trout)
Streams supporting a cold water sport fishery, or serving as a spawning area for salmonids and other cold water fish species through natural reproduction. Representative aquatic life communities, associated with these waters, generally require cold temperatures and concentrations of dissolved oxygen that remain above 6 mg/L. Since these waters are capable of supporting natural reproduction, a minimum dissolved oxygen concentration of 7 mg/L is required during times of active spawning and support of early life stages of newly-hatched fish.
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.
Cold
Streams capable of supporting a cold water sport fishery, or serving as a spawning area for salmonids and other cold water fish species. Representative aquatic life communities, associated with these waters, generally require cold temperatures and concentrations of dissolved oxygen that remain above 6 mg/L. Since these waters are capable of supporting natural reproduction, a minimum dissolved oxygen concentration of 7 mg/L is required during times of active spawning and support of early life stages of newly-hatched fish.

Overview

McPherson Branch is a spring-fed cold water tributary to the Platte River near the community of Ellenboro. About 1.5 miles is currently considered a class II trout stream. Recent fish surveys have resulted in the stream being proposed to be upgraded to a class I trout stream (WDNR, 2000). This change, once approved, will make McPherson an Exceptional Resource Water in the State of Wisconsin. Agricultural nonpoint sources of pollution are present in its watershed and McPherson Branch is also listed on the state’s list of impaired streams due to problems resulting from this pollution. Nonpoint source best management practices, particularly stream buffer corridors and managed grazing, would help protect and improve the stream. The Harry and Laura Nohr Chapter of Trout Unlimited is in the process of conducting in-stream habitat work on McPherson Branch during the summer of 2001.

Date  2001

Author   Aquatic Biologist

Historical Description

From: Smith, Tom D., and Ball, Joseph R., Lake and Stream Classification Project. Surface Water Resources of Grant County, Department of Natural Resources, 1972. Surface Area = 2.24 acres, Length = 3.7 miles, Gradient = 81 ft./mile Flow = 2.8 c.f.s.

A high-gradient, spring-fed stream beginning four miles southeast of Lancaster and flowing in an easterly direction to empty into the Platte River near Ellenboro. The lower 1.2 miles of stream which is considered to be trout water is fairly deep with a good in-stream vegetation cover. Brown trout are common and a few brook trout can be found. Trout up to 22.2 inches have been taken indicating that they grow well in this stream. Forage species are common and a few smallmouth bass are present in the lower reache8. Caddis fly and fresh- water shrimp are common. Pools are scarce in the upper one-half of the stream and the banks are relatively stable throughout. Muskrats and a few migratory waterfowl inhabit the stream while the upland varieties frequent the surrounding area. Seepage from a garbage dump located on the floodplain in the central portion of the stream is a potential source of pollution. The Platte River and two bridge crossings provide public access. Two dwellings are seen adjoining the stream.

Date  1972

Author   Surface Water Inventory Of Wisconsin

Mcpherson Branch, Platte River Watershed (GP02) Fish and Aquatic LifeMcpherson Branch, Platte River Watershed (GP02) RecreationMcpherson Branch, Platte River Watershed (GP02) Fish Consumption

General Condition

McPherson Branch (WBIC 951100) from its mouth to its sixth tributary was assessed during the 2018 listing cycle; new biological (fish Index of Biotic Integrity (IBI) scores) sample data were clearly below the 2018 WisCALM listing thresholds for the Fish and Aquatic Life use. This water was meeting this designated use and was not considered impaired.

Date  2017

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

2020 Comprehensive WQ Assessments
2018 List of Healthy (Category 2) Waters
2002 Impaired Waters Delisting Documentation
Comprehensive 2018 River/Stream Water Quality Assessments

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

Project Name (Click for Details)Year Started
GRANT COUNTY: McPherson Branch NPS Mgmt2004
Fish Propagation Actions2001

Monitoring Projects

WBICOfficial Waterbody NameStation IDStation NameEarliest Fieldwork DateLatest Fieldwork DateView StationView Data
951100McPherson Branch10007989Mcpherson Br. Station 111/6/200011/6/2000MapData
951100McPherson Branch10007990Mcpherson Br. Station 211/6/200011/6/2000MapData
951100McPherson Branch10040543McPherson Creek at Airport Rd7/30/200211/9/2004MapData
951100McPherson Branch223321Mcpherson Branch - Airport Rd5/22/198612/10/2019MapData
951100McPherson Branch10021400Mcpherson - Upper Station 7/25/20051/1/2015MapData

Watershed Characteristics

McPherson Branch is located in the Platte River watershed which is 197.74 mi². Land use in the watershed is primarily grassland (43.30%), agricultural (30.70%) and a mix of forest (19%) and other uses (7.00%). This watershed has 455.07 stream miles, 21.45 lake acres and 1,303.48 wetland acres.

Nonpoint Source Characteristics

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

Natural Community

Mcpherson Branch is considered a Cool-Cold Headwater, Coldwater under the state's Natural Community Determinations.

Natural communities (stream and lake natural communities) represent model results and 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.

Cool (Cold-Transition) Headwaters are small, usually perennial streams with cold to cool summer temperatures. Coldwater fishes are common to uncommon (<10 per 100 m), transitional fishes are abundant to common, and warm water fishes are uncommon to absent. Headwater species are abundant to common, mainstem species are common to absent, and river species are absent.

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