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The Building and Grounds Division will benefit from access to Building footprints and building floor plans via GIS . Building footprints can be derived from hard copy sources as well as more recent digital sources . The recommended GIS Director should work with this Division to identify a key set of attributes that can be associated with the footprints and floor plans; core attributes include address, number of floors , total number of rooms , and building type . It is recommended that the floor plan for each floor of each building be linked to the GIS . Access to this information will greatly assist the Building and Grounds Division . W Case Study : GIS Identifies Pollution Sources Also Aids Watershed Remediation In 1993 , highly acidic water gushed out of an abandoned mine killing an estimated 60,000 fish in the Casselman River. For many years , the Casselman River and its tributaries , located primarily in southern Somerset County, Pennsylvania , have been impacted by nonpoint pollution sources . In addition to abandoned mine drainage ( AMD) , agricultural runoff also is a major contributor of nonpoint source pollution in the area . Previous studies reported that between 1 ,800 and 2 , 400 tons y of AMD per year are seeping into the Casselman ` River . The Casselman River Watershed has been categorized by the Commonwealth of DANGER Pennsylvania and the Environmental Protection I Agency as having the highest restoration priority. (KEEP OUT; . r The Casselman River Watershed Alliance has been working for many years to address AMD and agricultural runoff pollution problems in the watershed . Partners in this alliance include the ; a00, Casselman River Watershed Association , the 1 Southern Alleghenies Conservancy, and the .r " Somerset Conservation District . Although considerable progress had been made improving water quality, much work remained . The Somerset Conservation District received a Pennsylvania Department of Environmental Discharges from abandoned mines Protection Growing Greener Grant to complete a have been a major source of nonpoint comprehensive nonpoint pollution assessment of Pollution in the Casselman River the Pennsylvania portion of the Casselman River Watershed. Watershed . This assessment, the Casselman River Watershed Major Nonpoint Source Pollution Assessment and Restoration Plan , is part of a long-term effort to restore the watershed . The project, started in 2001 and completed in 2003, assessed approximately 370 square miles of the Casselman River Watershed . In addition to assessing nonpoint source , the project had an additional goal to produce a restoration plan that would guide future restoration activities . GIS had a major role in the success of the project. It was used to compile relevant watershed information ( post , present, and future ) for analysis . GIS served as the backbone for the watershed and wafer quality analysis by gathering together key data and analytical components for review and analysis . Structured to provide a multitude of future assessment and analysis opportunities, the GIS is being constantly updated and augmented while the 120 GIS Needs Assessment and Implementation Plan Chapter 1 - Departmental GIS Needs Assessment