Dexter Lake TMDL Monitoring
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Purpose

The Purpose of this project is to conduct sampling that is required to complete a TMDL on the Dexter Lake watershed. The previous two years were used to collect enough data to list Dexter Lake on the 303D list with nutrients as an impairment. This is a 2-year project. The primary land use in the watershed is forests and agriculture. This body of water has been polluted for decades by excessive nutrients from ag runoff that has led to excessive algal blooms, lack of aquatiic macrophytes and high bacteria counts. The lake is a high value recreational area with a county park and campground. Increasing complaints about excessive algal growth and poor water clarity has triggered interest with citizens. The development of a TMDL is the logical next step and would also serve a second puropse.The Yellow River sub-watershed is part of the Wisconsin River basin where another TMDL is being proposed. The data from this project will not only help a local effect in Wood County, but provide very valuable data for the WIsconsin River Study (WTWR).

Objective

This project is necessary because 1) it is a listed 303D water, 2) high interest among citizens, and 3) it will play a critical role in a larger concurrent project (WTWR). Development of a TMDL as required by EPA. This TMDL will be used in conjuction, with Wood County Land and Water Conservation Department personel, to implemet land use porjects to decrease agricultural runoff in the watershed.

Outcome

This is a continuation of an ongoing project that will begin on the fiscal year and end at the end of the 2012 water year on 9/30/2012. There will be 6 river sampling events (semi monthly) from July 2012 through September 30, 2012. Sampling will consist of TSS, TP and ortho-P.There will be semi-monthly lake sampling in July and August that will be ananlyzed for Chl-A, TP and ortho-P and bacteria (E. coli and fecal). An aquatic plant survey will be conducted in July-August of 2012 to compare against the 2010 survey. DNR ISS will design the sampling scheme as per DNR protocol.This fiscal year will be data gathering only. No report writing will occur. TDML and final report will be completed in FY 2013.

Related Reports

Run Project Summary Report
View Umbrella-Projects
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TMDL/303d Projects
TMDL Development
WCR_20_CMP13
2011
Active
 
Reports and Documents
2010 Dexter Lake Aquatic Plant Survey
Spreadsheet
 
Activities & Recommendations
Monitor Targeted Area
The Purpose of this project is to conduct sampling that is required to complete a TMDL on the Dexter Lake watershed. The previous two years were used to collect enough data to list Dexter Lake on the 303D list with nutrients as an impairment.
TMDL Actions in Wisconsin
Development of a TMDL as required by EPA. This TMDL will be used in conjuction, with Wood County Land and Water Conservation Department personel, to implemet land use porjects to decrease agricultural runoff in the watershed.
Aquatic Plant Monitoring or Survey
The Purpose of this project is to conduct sampling that is required to complete a TMDL on the Dexter Lake watershed. The previous two years were used to collect enough data to list Dexter Lake on the 303D list with nutrients as an impairment.
TMDL Monitoring
The Purpose of this project is to conduct sampling that is required to complete a TMDL on the Dexter Lake watershed. The previous two years were used to collect enough data to list Dexter Lake on the 303D list with nutrients as an impairment.
 
Watershed
Upper Yellow (Wood Co.) River
 
Waters
Yellow River
Monitoring Data