** FILE ** In this Sept. 14, 2009 photo, Encana Corp. placed two 2400 gallon water containers inside this unit on Louis Meeks' property in Pavillion, Wyo. The ranking Republican on the Senate Environment and Public Works Committee — Oklahoma Sen. James Inhofe — is asking the head of the U.S. Environmental Protection Agency for more information about an EPA investigation into groundwater contamination in a Wyoming gas field. (AP Photo/Casper Star-Tribune, Kerry Huller)
