do i need a permit from the vtdec stormwater section no does project involve any proposed changes that meet minimum impervious area thresholds for new permits see table 2 creation of surfaces yes obtain dec re development or expanded is in watershed improvement wip 1 has previously been issued seek coverage under applicable as previous permittee selected contributor flowchart federally mandated sw general permitted non watersheds 3 9010 vermont state permitting continued will disturb more than 5 acres land acre after march 03 contact hydrology to file npdes construction application facility s sic code identified on msgp list multi sector