Big Drywood/Little Drywood TWA 2018 (2021)

Purpose

The Big Drywood and Little Drywood Watersheds were selected as a TWA to collect baseline biological, physical and chemical information from streams in the watershed. Chippewa County LCD and the Lake Wissota lake association have targeted the yellow river watershed for developing a 9-key element plan for BMP implementation to address TP and sediment runoff and riparian degradation. The data will be used to establish a baseline of current conditions that will be used to evaluate BMP effectiveness in the future. Big Drywood and Little Drywood (both HUC 12s) are two major tributaries to the larger Yellow River watershed (4 HUC 12s) that feed Moon Bay of Lake Wissota. The Yellow RIver is currently listed on 303d list for TP.

Objective

Data collected will be used to establish a baseline of biological, physical and chemical conditions for watershed streams and be used to evaluate any future best practices implementation. Growing season total phosphorus sampling will be initiated at four sites, under the proposed 2018 Lower Yellow River Watershed TP Growing Season Sampling, in these two watersheds to establish baseline conditions. Many of these streams have not been monitored and/or have old data. If monitoring shows exceedences the streams will be recommended for listing.

Outcome

Proposed project for Western District TWAs ** note this project has site overlap with 2018 Lower Yellow River Watershed TP Growing Season Sampling.

Study Design

The Drywood tributary to the Yellow River consists of two HUC 12s: Little Drywood and Big Drywood. The Little Drywood subwatershed includes Little Drywood Creek, Iron Creek, and multiple unnamed tributaries. The Big Drywood subwatershed includes Big Drywood Creek, Seth Creek, Dutch Creek, and multiple unnamed tributaries. Fish, macroinvertebrate, qualitative habitat and continuous temperature monitoring will be completed at ~16 sites with 12 in the two subwatersheds. The other 4 sites will be sites selected in the other HUC 12s that are part of the proposed 9-key element plan. The data collected will be used to establish a baseline of current conditions, in the area of the proposed plan. Growing season total phosphorus monitoring and DNI sampling will be completed at 4 sites in the two Drywood watersheds, under the proposed 2018 Lower Yellow River Watershed TP Growing Season Sampling. The purpose of this monitoring is to document baseline conditions and establish sites for long term monitoring to document changes that may result from implementing the 9-key element plan. This monitoring will be completed by volunteers, under a separate district project. The number of sites or sampling frequency will be adjusted for following years based on sample results and discussions with CO modelers. The data will help establish a baseline to evaluation future TP reductions.

Related Reports

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

Targeted Watershed Approach
Planning (WQ, Nine Key Element)
West_TWA_4_2018
2018
Final Report Needed
 
Reports and Documents
Big Drywood/Little Drywood TWA 2018
Big Drywood/Little Drywood TWA 2018
Big Drywood/Little Drywood TWA 2018
Big Drywood/Little Drywood TWA 2018
 
Activities & Recommendations
Monitor Targeted Watershed Area (TWA)
TWA to establish baseline biological, physical, and chemical data to support the development of 9-key element plan for Moon Bay Lake Wissota