Water Detail - Brown Branch, Lower Pecatonica River Watershed (SP07)

Brown Branch, Lower Pecatonica River Watershed (SP07)

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Brown Branch (915900)

Size

4.60 Miles

Segment

0 - 4.60

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.

2016

General Condition

Poor

This river is impaired

Impairments include

Degraded Biological Community

Pollutants include

Unknown Pollutant

County

Lafayette

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.

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.

Yes

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.

Restricted Aquatic Life

Fish and Aquatic Life communities are not fully supported in this ecosystem.

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 II Trout)

Streams 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 through natural reproduction and selective propagation. 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

This spring fed stream is managed as a Class II trout fishery for two thirds of its length. The last survey was conducted in 1980 and found no natural reproduction of trout.

Date 2002

Author Aquatic Biologist

Historical Description

The flow of Brown Branch contributes about 15 percent of the volume of Spafford Creek to which it is tributary. Its waters are spring-fed and are suitable for brown trout which are stocked annually. Some smallmouth bass are also present. The principal bottom types are rubble, silt, bedrock, and gravel. Over ninety percent of the stream's watershed area is classified as agricultural. Stream banks exhibit moderate erosion. Furbearers include muskrats on the layer sections. About seven miles of stream are in the Spafford Creek Public Hunting Grounds which consists of 3,994 acres of private land leased by the Bureau of Game Management of the Division of Conservation. No public fee title ownership exists on the stream to date but it is accessible from three town road crossings.

Brown Branch, T1N, R5E, Sections 21-8, Surface acres = 2.7, Miles = 4.3, Gradient = 27.9 feet per mile, Total alkalinity = 285 mg/l, Volume of flow = 1.6 cfs.

From: Piening, Ronald; Poff, Ronald; Threinen, C.W., 1967. Lake and Stream Classification Project. Surface Water Resources of Lafayette County, Wisconsin Department of Natural Resources, Madison, WI.

Date 1967

Author Aquatic Biologist

Brown Branch, Lower Pecatonica River Watershed (SP07) Fish and Aquatic Life

Brown Branch, Lower Pecatonica River Watershed (SP07) Recreation

Brown Branch, Lower Pecatonica River Watershed (SP07) Fish Consumption

Impaired Waters

The 2018 assessments of Brown Branch (Mouth to Brown Road) showed biological impairment; new macroinvertebrate sample data exceeded the 2018 WisCALM listing criteria for the Fish and Aquatic Life use (i.e. at least one macroinvertebrate Index of Biotic Integrity (IBI) average scored in the poor condition category). Based on the most updated information, this water was proposed for the impaired waters list.

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

Final Draft 2018 Impaired Waters List

Comprehensive 2018 River/Stream Water Quality Assessments

Comprehensive 2016 Rivers Stream Assessments

An Assessment of Water Quality in The Lower Pecatonica River Watershed 2010 - 2011, Lafayette County

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
Fish Propagation Actions	2001

Monitoring Projects

WBIC	Official Waterbody Name	Station ID	Station Name	Earliest Fieldwork Date	Latest Fieldwork Date	View Station	View Data
915900	Brown Br	10029729	Brown Br ~250ft E of Brown Rd	1/1/2015	9/30/2015	Map	Data
915900	Brown Br	10009239	Brown Br near Fritzges Rd (1)	11/15/2002	7/16/2016	Map	Data
915900	Brown Br	10029728	Brown Br at Tollakson Rd	8/8/2013	9/30/2015	Map	Data
915900	Brown Br	10014162	Brown Branch Spafford Creek- Baseline (East Of Frizges Rd)			Map	Data

Watershed Characteristics

Brown Br is located in the Lower Pecatonica River watershed which is 134.23 mi². Land use in the watershed is primarily agricultural (60.60%), grassland (30.40%) and a mix of forest (7.60%) and other uses (1.20%). This watershed has 333.90 stream miles, 40.87 lake acres and 274.90 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.

Natural Community

Brown 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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