ST. JOHNS, Newfoundland — St. John’s lawyer Bob Buckingham is not sure how an investigation into the illegal burial of hazardous and contaminated materials in Deer Lake will take place, but he’s giving all the credit for it happening to one man. Buckingham represents Richard Dewey, a resident of Deer Lake who, for more than a decade, has worked to bring attention to three separate environmental issues in the town: the burial of the hazardous and contaminated materials, pollution of the town’s drinking water and property damage caused by seepage from the Humber Canal. …Dewey made a complaint to the provincial government claiming that creosote-contaminated soil was trucked from beneath the penstocks on the Humber Canal and buried near the town’s water supply, and that creosote-soaked penstocks were dumped at the closed town landfill.