Comment submitted by Joanne Spalding, Sierra Club, et al.
Posted : 07/28/2011     ID ：EPA-HQ-OAR-2011-0417-0008     Agency : EPA

Comment Period Closed
Jul 27,2011 11:59 PM ET

Comment submitted by William W. Grygar II, Director, EHS Services, Anadarko Petroleum Corporation
Posted : 07/28/2011     ID ：EPA-HQ-OAR-2011-0417-0009     Agency : EPA

Comment Period Closed
Jul 27,2011 11:59 PM ET

Comment submitted by Grover R. Campbell, Manager, Chesapeake Energy Corporation and V. Bruce Thompson, President, American Exploration & Production Council (AXPC)
Posted : 07/28/2011     ID ：EPA-HQ-OAR-2011-0417-0011     Agency : EPA

Comment Period Closed
Jul 27,2011 11:59 PM ET

Comment submitted by Karin Ritter, Manager, Regulatory and Scientific Affairs, American Petroleum Institute (API)
Posted : 07/29/2011     ID ：EPA-HQ-OAR-2011-0417-0012     Agency : EPA

Comment Period Closed
Jul 27,2011 11:59 PM ET

Comment submitted by Peter Zalzal, Staff Attorney, Environmental Defense Fund (EDF)
Posted : 07/29/2011     ID ：EPA-HQ-OAR-2011-0417-0013     Agency : EPA

Comment Period Closed
Jul 27,2011 11:59 PM ET

Comment submitted by Jeff Applekamp, Director, Government Affairs, Gas Processors Association (GPA)
Posted :     ID ：EPA-HQ-OAR-2011-0417-0014     Agency : EPA

Comment Period Closed
Jul 27,2011 11:59 PM ET

Late comment submitted by Willie R. Taylor,Director, Office of Environmental Policy and Compliance, US Department of the Interior
Posted : 08/08/2011     ID ：EPA-HQ-OAR-2011-0417-0015     Agency : EPA

Comment Period Closed
Jul 27,2011 11:59 PM ET