Lake of the Woods SWCD

Lake of the Woods Total Maximum Daily Load (TMDL)

Recent Updates

View the March 8th, 2018 Progress Report presentation from the Lake of the Woods Water Quality Forum. 

The Load Allocation Table has been updated.  The draft results are update to date as of February 19th, 2018.

About the LOW TMDL

A TMDL study calculates the maximum amount of a pollutant a waterbody can withstand.  It also identifies necessary reductions and allocates them to one or more sources. 

The end goal of a TMDL study is to develop a plan and potential starting point for restoration or protection activities. 

This project, which began in July 2015, builds on and makes use of existing data and research, and will result in a study document available for public review and comment prior to submission to the United States Environmental Protection Agency for approval.

Current research happening on Lake of the Woods - for more information on some of the current research, check out these articles from the St. Croix Watershed Research Station:

"Buoyed By New Clues to Lake of the Woods" - Field Notes, August 2015

"Unlocking Lake of the Woods" - Field Notes, March 2015

Click on the map to view full size image of the study area.

Click to view watershed map

Frequently Asked Questions - download our FAQ Sheet


Key Contacts:

Email with your general questions. 

You may also contact one of the project managers listed below.

  • Cary Hernandez, MPCA Project Manager,, 218-846-8124

  • Mike Hirst, Lake of the Woods SWCD,, 218-634-1842 x4

  • Julie Blackburn, RESPEC Project Manager,, 651-605-5705