The 120,000-acre Aux Sable Creek Watershed is home to 14,500 residents, based on 2000 Census data.  This is more than double the 1990 estimates of just over 5,600 people.  The population in the Aux Sable Creek Watershed, which includes Kendall, Grundy, and Will counties, is expanding, through development in Channahon, Joliet, Minooka, Morris, Oswego, Plainfield, Shorewood, and Yorkville as well as some unincorporated areas.

2006 marked the first time any stream in the Aux Sable Creek watershed was listed on the Illinois EPA’s 303(d) List of Impaired Waters.  The 2006 Illinois Water Quality Report 305(b) indicated primary contact uses (e.g., swimming) are not supported in a 20.48 stretch of the Aux Sable Creek (IL_DW-01). View map G-11 on page 14 of the 2006 Illinois Water Quality Report.  The potential cause: fecal coliform bacteria.  The potential source:  unknown.

Changes in the watershed along with new criteria for watershed plans, prompted the Aux Sable Creek Watershed Coalition and The Conservation Foundation to collaborate and request Section 319 funding to work with a group of local stakeholders to update the original watershed plan.  Being a high quality stream, the hope is to utilize Illinois EPA funding to help stakeholders maintain water quality even as development continues.  The project and long-term goal is to work cooperatively with units of local government, other organizations and stakeholders toward the mutual goal of protecting water quality in the Aux Sable Creek Watershed through the control of nonpoint source pollution.  The premise: planning will result in efficient long-term use of taxpayer’s money by preventing future impairments thus avoiding costly remediation efforts that would be required if water quality is continued to be ignored.

For more information on the Section 319 project components, click here. Click here for an summary of the resulting plan.


Aux Sable Creek Watershed Plan

June 1, 2009



Table of Contents

Chapter 1 - Introduction

Chapter 2 - Existing Conditions

Chapter 3 - Watershed Impairments

Chapter 4 - Agricultural Management Practices

Chapter 5 - Urban Management Practices

Chapter 6 - Recommendations & Action Plan

Chapter 7 - Funding

Chapter 8 - Monitoring Sucess


Acronyms & Literature Cited

Appendices - Available on CD with the plan at the Yorkville, Oswego, Minooka, Morris and Channahon libraries.

Public Comments on the plan (6 MB)