Philadelphia Studies: Environmental

PASDA is the official public access geospatial information clearinghouse for the state of Pennsylvania, providing free shapefiles, KMLs, and WMS from a wide variety of agencies around Pennsylvania. Catalog contains data from the City of Philadelphia, the Delaware Valley Regional Planning Commission, and the USGS, among others.

Archive of older USGS aerial photographs in JPEG format.

KMLs of waterbodies, watersheds, and sewer areas, with other GIS data available on request.

Editable tree inventory database with information on individual trees and ecosystem benefits. Downloadable as KML and CSV.

Web map of locations of facilities in the EPA's Toxic Release Inventory database. Downloadable as shapefile, GeoRSS, KML, or CSV with latitude and longitude. Coordinate system is GCS North American Datum 1983 (may not be included with download).

Collection of digitized maps related to the history of Philadelphia's watersheds and sewers.

Maps Indicators of Potential Disadvantage.

Locations of community-based EPA grants, water monitoring stations, pollution sites, and demographics.

Digitized version of Geologic map of Pennsylvania (2nd ed.), 1980.

Access the Free Library's 1930 Dallin aerial survey and 1928 Regional Planning Federation survey.

2004, 2008, 2010 aerial photography. Downloads through PASDA.

2005 and 2010 orthorectified imagery of the Delaware Valley.

Aerial photos of the mid-Atlantic region's towns, factories, and other sites prior to World War II.