Unnamed Trib. To Marengo River T44n R5w S15, Marengo River Watershed (LS12)
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Unnamed Trib. To Marengo River T44n R5w S15, Marengo River Watershed (LS12)
Unnamed Trib. To Marengo River T44n R5w S15 (2921800)
1.54 Miles
0 - 1.54
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.
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.
Unknown
 
Bayfield
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.
Yes
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

Five unnamed tributaries to the Marengo River are Class I trout streams and are classified as exceptional resource waters. These streams are all incorrectly located in Wisconsin Trout Streams based on their headwaters, not their outlets. The tributary listed as T44N R5W S17 is in Section 16 NWNE. This stream is a small spring stream populated by brook and brown trout. There may be inadequate in-stream food sources. The stream has a stable bottom of rubble, gravel, boulders and sand. Bank vegetation is upland hardwood.

The stream listed as T44N R5W S20 is in Section 16 NESE. This stream is a small spring-fed stream with brook and brown trout. Sculpins are abundant. The trout are stunted, which may indicate a lack of in-stream food sources. Cover is good and stable rubble, boulder, gravel and sand make up its bottom. The bank is vegetated by upland hardwoods. Both of the preceding streams flow mostly within Chequamegon National Forest lands.

The stream listed as T44N R5W S21 is in Section 15 according to 1984 1:24,000 scale topographic maps, though Surface Waters of Bayfield County identifies the stream as entering in Section 16. This stream is a small brook trout stream flowing north along the west side of the old Grandview Quarry. The trout are small, indicating an inadequate supply of food. Adjacent to the quarry, stream bottom types are mainly sand, gravel and crushed granite. Above the quarry, little granite is present. Most of the streambanks are in private ownership.

The stream listed as T44N R5W S3 is located in Section 9. This is an excellent spring-fed feeder for spawning brook and brown trout. Resident trout are small, indicating an inadequate food supply. The entire stream is bordered by upland hardwoods of the Chequamegon National Forest and bottom conditions are stable gravel, rubble and boulders.

The stream listed as T45N R5W S9 is in Section 1 NWNW. This stream supports a population of small brook trout. It has an unstable silt and clay bottom. The entire stream is bordered by upland hardwoods. Trout habitat appears to be good, but there is inadequate food supply. The stream flows through privately held lands.

Date  1999

Author   Aquatic Biologist

Unnamed Trib. To Marengo River T44n R5w S15, Marengo River Watershed (LS12) Fish and Aquatic LifeUnnamed Trib. To Marengo River T44n R5w S15, Marengo River Watershed (LS12) RecreationUnnamed Trib. To Marengo River T44n R5w S15, Marengo River Watershed (LS12) Fish Consumption

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

Marengo River (LS12) watershed plan
Bayfield County Surface Water Resources 1971 Part 1 of 3
Bayfield County Surface Water Resources 1971 Part 2 of 3
Bayfield County Surface Water Resources 1971 Part 3 of 3

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

Monitoring Projects

WBICOfficial Waterbody NameStation IDStation NameEarliest Fieldwork DateLatest Fieldwork DateView StationView Data

Watershed Characteristics

Unnamed is located in the Marengo River watershed which is 217.53 mi². Land use in the watershed is primarily forest (67.40%), wetland (15.30%) and a mix of grassland (11.60%) and other uses (5.70%). This watershed has 450.89 stream miles, 1,497.18 lake acres and 18,112.32 wetland acres.

Nonpoint Source Characteristics

This watershed is ranked Medium for runoff impacts on streams, Not Available 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.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

Unnamed Trib. To Marengo River T44n R5w S15 is considered a 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.