Dallas-based Energy Transfer Operating, The developer of a major pipeline system that connects the Marcellus Shale gas field in western Pennsylvania to an export terminal near Philadelphia, pleaded no contest Friday, August 5th, to criminal charges that it systematically polluted waterways and residential water wells across hundreds of miles. The developer agreed to independent testing of homeowners’ water and promised to remediate contamination in a settlement of two separate criminal cases brought by the Pennsylvania attorney general. The company will also pay $10 million to restore watersheds and streams along the route of its Mariner East pipeline network.