Approved applications for development that were received and reviewed by the Allegheny County Conservation District (ACCD). Application types consist of Chapter 102 National Pollutant Discharge Elimination System (NPDES) permits, E&S plan reviews for sites not needing an NPDES permit, Erosion and Sediment Control General Permits (ESCGPs) for projects associated with oil and gas, and applications for earth disturbance associated with Chapter 105 General Permits issued by ACCD. Features were digitized using paper plans and/or digital plans, where available, and are represented as permit boundaries and limits of disturbance for permits and non-permits, respectively. Includes plan identification numbers, application dates, municipalities, and site acreage.