As the nation expands its search for new forms and sources of energy, there is an urgent need to assure that we develop “clean energy” sources that protect our air, water and land. Some energy extraction activities, such as new techniques for oil and gas extraction and coal mining, pose a risk of pollution of air, surface waters and ground waters if not properly controlled. For example, an unprecedented acceleration of oil and gas leasing and development has led to a significant rise in the level of air pollution throughout the intermountain West. Drilling activities have led to concerns about ground water pollution and the safety of drinking water supplies in various parts of the country. To address these emerging problems, EPA will develop an initiative to assure that energy extraction activities are complying with federal requirements to prevent pollution of our air, water and land. This initiative will be undertaken in particular areas of the country where energy extraction activities are concentrated, and the focus and nature of our enforcement activities will vary with the type of activity and pollution problem presented.