The South Branch TMDL
Implementation Final Report June 2011
Review the YMRWD
Overall Plan.
The Yellow
Medicine River Watershed District recently completed the process of updating
our 10 year watershed management plan. The Board of Soil and Water Resources
reviewed and approved our 10 year overall plan in the Spring of 2009.
This watershed
district has made great strides in the last ten years, and expects the next
10 years to be even more productive and progressive.
Lake Shaokatan TMDL
Project
A 30-day public
comment period held July 6, 2009 - August 5, 2009 yielded 65 comment
letters. Most of the comments were positive and supportive of the
project. A few comment letters contained suggestions for improving the
draft report. Since then, MPCA and YMRWD worked together to revise the
report.
The following
changes were made to the
TMDL report:
· Corrected typographical errors throughout report.
· Updated land use and land cover information with more recent
data from the National Agricultural Statistics Service and the National Land
cover Dataset.
· Included a 0.042 kg total phosphorus/day for waste load
allocations to account for construction storm water.
· Removed subjectivity and negative inferences toward agriculture
throughout the report.
· Updated feedlot information using MPCA’s and Lincoln County
feedlot databases.
· Removed water quality data not related to the phosphorus water
quality standard.
· Revised Pollutant Assessment section to include internal
loading, atmospheric deposition and updated land use/land cover information.
· Used a range of phosphorus loading rates in the Pollutant
Assessment section to estimate watershed loading sources.
· Inserted additional information regarding internal loading
impacts.
· Condensed the report by combining the Linkage Analysis and TMDL
sections.
· Clarified Lake Shaokatan’s critical conditions.
· Provided more information regarding 2005 conditions and lake’s
response.
· Removed figures and charts that were confusing and unrelated to
the TMDL.
· Included discussion regarding conservation activities in the
watershed.
A second public
comment period will be held in early 2010. For more information about
the project, please see
http://www.pca.state.mn.us/water/tmdl/project-lakeshaokatan.html