Data

Environmental Alliance for Senior Involvement (EASI)
Link to their online database and view their data template.

Pennsylvania Spatial Data Access (PASDA)
Search Pennsylvania's official geospatial data clearinghouse.

STORET - EPA's largest computerized environmental data system
For basic instructions on retrieving water quality data from EPA’s STORET system, go to:
http://www.dep.state.pa.us/dep/deputate/watermgt/wqp/wqstandards
/STORET- Access.htm

ALLARM - The Alliance for Aquatic Resource Monitoring