I. Project Summary

Sediment is one of the pollutants that is impairing aquatic life uses in Mill Creek and all of its tributaries and has been on the 303(d) list since the mid-1980s. Sources of excessive sediment have been attributed to agricultural, urban, and ex-urban land development and management practices. This project will identify and prioritize various categories of alterations to the land and watershed hydrology that contribute most to excessive erosion and sedimentation. It will also identify additional factors contributing to beneficial use impairment, so that the appropriate mix of restoration measures and land use/development practices can be put in place where they achieve the greatest anticipated environmental benefits. C. Problem Statement: i. Identify or characterize baseline data Several studies have recently been completed and published that document impairment to aquatic life uses in the Mill Creek Watershed. Excessive sediment is listed as one of the main causes of anadromous fisherie