The Environmental Protection Agency announced July 25 that it has completed its sampling of private drinking water wells near Dimock, Pennsylvania, where groundwater contamination was linked to natural gas drilling in 2009, and has determined that contaminant levels do not require additional action. In 2009, the Pennsylvania Department of Environmental Protection charged Houston-based Cabot Oil & Gas Corp. with high methane levels in some private water wells in the township. Under terms of a 2010 settlement, the company supplied water to 19 households until last November 20, when the state determined that the company had satisfied the conditions of the settlement.