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Photo by Tammy Keith

Scott Smith, right, talks with two Exxon Mobil officials who said they were not allowed to give their names to the media. Smith, of Cape Cod, Mass., was questioned about putting a foam product in the oily stormwater ditch on U.S. 365 in Mayflower. Smith said he used his product in another oil spill with Exxon Mobil’s blessing, but company officials said they did not give him permission to do so in Mayflower.