Directory Results for NPDES General Permit for Stormwater Discharges from Construction Activities Appendix K. NPDES General Permit for Stormwater Discharges from Construction Activities Appendix K to NPDES General Permit for Stormwater Discharges From Construction Activities NOI Modification Permittees can use this form to modify their NOI under EPAs NPDES General Permit for Stormwater Discharges From Construction Activities