KNOX COUNTY, KENTUCKY
ECSI was retained after a large precipitation event in 2011 to provide expert witness services in litigation involving a mining company near the area of rainfall. The precipitation measured 7.11 inches at the nearest station indicating a storm magnitude above a 100-year event. As part of the project, ECSI developed a HEC-HMS hydrologic model of a 4,000 acre watershed lying above a community in Knox County, Kentucky. The model assisted with the prediction of flooding impacts from various storm events and illustrated that mining was not the likely major contributor to the flooding previously experienced downstream. In fact, conclusions derived from the modeling analysis were that although logging operations contributed more to flooding than mining operations, flooding of the community would have occurred even under completely natural forest conditions due to the high volume of rainfall experienced over such a short duration.