Sevenmile and Ten Mile Creeks (CW09) Watershed Planning

Purpose

Watershed plan update 2016. The Sevenmile and Tenmile Creek Watershed is located in the counties of Adams, Portage, Wood and Waushara. This watershed is a maze of ditches and laterals that were created to drain lowland areas for agricultural activities.

There are large sections of land that have been purchased by the state that are being maintained for grassland ecosystems. Both grazing and pivot irrigation are two land uses that impact the water quality of Sevenmile and Tenmile Creeks Watershed. This watershed was ranked using the Nonpoint Source Priority Watershed Selection Criteria. Based on surface and ground water data, the overall ranking is high, establishing Sevenmile and Tenmile Creek Watershed as a high priority for future grant eligibility through the Nonpoint Source Pollution Abatement Program. The watershed includes the towns of Pine Grove, Grant, and Almond. The Portage County Soil Erosion Control Plan identifies these towns as having excessive soil loss rates due to wind and water erosion. There are several cranberry farms located in the watershed that utilize water for their operation. Water drawn from ditches reduces stream flow, decreases adult fish cover, reduces spawning areas for trout and likely exposes fish redds, and may result in an increase of water temperatures. Discharges from cranberry marshes can adversely affect water temperatures, deposit sediment, and release nutrients to the ditches. Periodic impounding of the ditches to flood marshes may prevent fish migration, increase water temperatures and de-water downstream reaches.

Study Design

Watershed specified for planning and assessment purposes. Assessment of water quality condition in this respective county will use protocols described in WisCALM of the year of assessment. Minimum assessment work includes biological data (macroinvertebrates, fish indices), chemistry and habitat data. Additional work includes identification of priorities and goals, creating recommendations for actions, and updating narratives for watersheds and waterbodies. Assessments are to be double checked by at least one additional biologist.

Related Reports

Run Project Summary Report
View Umbrella-Projects
View Related-Projects

Water Quality Planning
Targeted Watershed Plans
CW09_WTPLAN
2013
Complete
 
Reports and Documents
Assessments and recommendations for the Watershed. Seven Mile and Ten Mile Creeks Watershed Plan (CW09)
Total phosphorus report for Bass Lake. No data available.
Sevenmile and Tenmile Creek CW09 Macroinvertebrate IBI Report 2014
Pressure transducer installation on Ditch 5 Portage County 7 10-mile Creek Watershed project.
GBH rookery Petenwell
Ditch 9 CTH F
Ditch 9. 7 10mile-creek watershed project
Ditch 6 CTH F
Ditch 5 Taft Rd
Ditch 5 CTH F
Ditch 6 Townline Rd
 
Activities & Recommendations
Water Quality Planning
The Sevenmile and Tenmile Creek Watershed is located in the counties of Adams, Portage, Wood and Waushara. This watershed is a maze of ditches and laterals that were created to drain lowland areas for agricultural activities. There are large sections of land that have been purchased by the state that are being maintained for grassland ecosystems. Both grazing and pivot irrigation are two land uses that impact the water quality of Sevenmile and Tenmile Creeks Watershed. This watershed was ranked using the Nonpoint Source Priority Watershed Selection Criteria. Based on surface and ground water data, the overall ranking is high, establishing Sevenmile and Tenmile Creek Watershed as a high priority for future grant eligibility through the Nonpoint Source Pollution Abatement Program. The watershed includes the towns of Pine Grove, Grant, and Almond. The Portage County Soil Erosion Control Plan identifies these towns as having excessive soil loss rates due to wind and water erosion. There are several cranberry farms located in the watershed that utilize water for their operation. Water drawn from ditches reduces stream flow, decreases adult fish cover, reduces spawning areas for trout and likely exposes fish redds, and may result in an increase of water temperatures. Discharges from cranberry marshes can adversely affect water temperatures, deposit sediment, and release nutrients to the ditches. Periodic impounding of the ditches to flood marshes may prevent fish migration, increase water temperatures and de-water downstream reaches.
 
Watershed
 
Waters