A document review at a PA DEP office by Save Our Streams PA located this report from June 2012 on a possible drilling-fluid migration incident. The reports suggest that groundwater may have been contaminated by drilling fluids during the first 213 feet of drilling. The documents were captured as images and this file, though zipped, is over 1 gigabyte.
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Preliminary Report: https://docs.google.com/file/d/0BxXaODKClcMBUlNJS0pXUHc2Y0k/edit?usp=sharing