Utilizing funds awarded through the Illinois EPA’s Section 604b Watershed Planning Program, DuPage County Stormwater Management completed a Watershed-Based Plan for the East Branch DuPage River watershed. The East Branch DuPage River watershed covers more than 52,000 acres, 81.2 square miles, and is located in central DuPage County with a small portion extending south into Will County. It has been classified as an impaired waterway by Illinois EPA for several pollutants, including total phosphorus, sediment/siltation, dissolved oxygen, and aquatic algae. The plan is under review by Illinois EPA.