Looking at that map, I wonder whether Somerset or Bedford County, either independently or together, are the biggest destinations of New York City trash in the country. New York turns out to to be the largest exporter while Pennsylvania is both the largest importer, and net importer of municipal solid waste. You may wonder why it's legal to dump your trash in somebody else's state, but the lawyers will tell you about this little thing called the Commerce Clause.
Sam had some insightful observations when I posted that map earlier . Someone ought to look into what the impacts, economic or otherwise, are of the trash economy in Kersey, PA which is the the largest location obvious in the northwestern part of the state.