Most stormwater practices were originally developed in the Piedmont physiographic region and have not been adapted for much different conditions in the coastal plain.
The karst terrain in the Bay watershed is distinct from some other regions in that the bedrock is very ancient and, in many areas, is deeply buried by residual soils.
The reformulated ICM includes three important changes to the original model.
Karst is a dynamic landscape characterized by sinkholes, springs, and caves. Karst terrain complicates the land development process and requires a unique approach to stormwater design.
It may surprise you, but lawns and turf grass is now the largest crop grown in the Chesapeake Bay watershed.
Bay stormwater managers are rapidly shifting their focus to reduce the volume of runoff rather than merely treating its quality.