Date of Award


Document Type


Degree Name

Master of Science (MS)


Geography and Regional Planning

First Advisor

Brian Okey, Ph.D.

Second Advisor

Jennifer L. Smith, Ph.D.

Third Advisor

Robert E. Wilson


This geographic information systems (GIS) model uses land use, road distance, population density, and slope to create a predictive surface for the likelihood of illegal trash dumpsites. Using existing literature, illegal dumpsites are found along roads at the fringes of populated areas in vacant lots and wooded areas. Some sites are found over hillsides where the trash is concealed. Weighting the factors for areas more likely to have dumpsites and combining the layers in a GIS creates a map of areas less likely and more likely to have dumpsites. Westmoreland and York counties are chosen as case studies because of their similar size and demographics. The results of the model accurately predict over 90% of existing dumpsite locations in both counties.