Projects & Studies

The Lower DuPage River Watershed Coalition is putting the results of its comprehensive monitoring program to work. 

In addition to regulations imposed by Illinois EPA, the Coalition is voluntarily investing in a number of studies and projects to improve the health of the DuPage River and its tributaries.


The DRSCW submits a Special Conditions Report to Illinois EPA on March 31 each year.  The report fulfills certain annual reporting requirements related to participation in projects identified by the Lower DuPage River Watershed Coalition and/or studies conducted in collaboration with the DRSCW.

2017-2018 Special Conditions Report

2018-2019 Special Conditions Report

2019-2020 Special Conditions Report

2020-2021 Special Conditions Report


Illinois EPA is implementing nutrient reduction requirements for our waterways.  In collaboration with the DuPage River Salt Creek Workgroup (DRSCW), POTWs in the Coalition will help fund the development of a non-point source/wash-off study, nutrient trading framework, and Nutrient Implementation Plan (NIP).

Chloride Reduction Program

High chloride concentrations in streams is a stressor to aquatic life.  One way to address chloride loadings in streams is to reduce its source – commonly used road salt.  The Coalition hosts annual workshops to help snow clearing operations (municipal and private) learn about and implement Best Management Practices (BMPs) to reduce salt (chloride) use while maintaining traffic safety.

Winter Deicing Workshops

Salt Smart Program

Integrated Prioritization System (IPS) Tool

In collaboration with the DuPage River Salt Creek Workgroup (DRSCW), the Coalition’s monitoring data will be integrated with the DRSCW’s to update and improve the IPS.  The Tool will identify the current most limiting stressors to aquatic life, management actions needed to address the stressors, and will indicate the likelihood that those management actions will restore impaired waters or (at least) result in incremental improvements towards that objective.

Hammel Woods Dam Modification

The Coalition identified this project as a means to resolve low dissolved oxygen levels, reduce nuisance algae, and eliminate a barrier to fish passage.  In addition, some in-stream improvements will be included with the dam modification.  The Forest Preserve District of Will County owns the dam and approved this project for both its safety and ecological benefits.  The Coalition helped fund the initial assessment and engineering plans for the project.  Plans for the final design are underway.

River Restoration Project (South of 119th St.)

This project is yet to be determined. The Coalition will use IPS Tool outputs to develop the project.

Get in Touch

Naperville, IL 60565

Phone: 630-428-4500
Fax: 630-428-4599

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2021 Meeting Dates

January 21
March 18
May 20
July 15
September 16
November 18