If your construction project cumulatively disturbs one or more acres of land through clearing, grading, excavating, or stockpiling of fill material, you may need construction Stormwater Permit Coverage from the Washington State Department of Ecology (DOE). This applies even if the project is being constructed in phases of less than one acre. Spokane County cannot determine whether Permit Coverage is necessary. It is your responsibility to apply for coverage. For more detailed information, call 360-407-6437 or visit their website.visit their website.