1. EPA’s Proposed CCB Regulations & Morgantown STAR Project 1 Shawn A. Seaman September 27, 2010 http://www.Mirant.com http://www.sefagroup.com

2. EPA’s Proposed CCB Regulations & Morgantown STAR Project 2 Current CCB Regulations –Federal (EPA): Exempt from RCRA Subtitle C Categorized as "special waste" –State (MDE): Disposal / Mine Reclamation: Transportation / Beneficial Use (Proposed)

3. EPA’s Proposed CCB Regulations & Morgantown STAR Project 3 EPA’s Proposed Coal Combustion Residual (CCR) Rule –Published: June 21, 2010 in Federal Register –Public Comment Period: Open until November 19, 2010 –Final Rule Timeline: Not yet established –Beneficial uses of CCRs in encapsulated form (concrete, wallboard, etc.) are encouraged and exempted –Three regulatory options proposed: Subtitle C – Hazardous Waste Subtitle D – Non-hazardous Waste Subtitle D’

4. EPA’s Proposed CCB Regulations & Morgantown STAR Project 4 Morgantown Ash Beneficiation/STAR Project -Thermal process / burns residual carbon -Makes ash suitable as a mineral admixture for beneficial reuse in concrete manufacturing –360,000 tpy (Morgantown & Chalk Point) –Baghouse & FGD –Potential impacts Increased air emissions Increased truck traffic Additional vapor plume due to the new FGD Fly Ash (http://acaa.affiniscape.com) Morgantown (http://www.Mirant.com)

5. EPA’s Proposed CCB Regulations & Morgantown STAR Project 5 Morgantown STAR Project Status (PSC Case No. 9229) –CPCN application submitted to PSC in March 2010, amended July 2010 –PPRP currently working with State Agencies on ERD and development of recommended licensing conditions –Next steps: State’s Direct Testimony due October 28, 2010 PSC hearings in November 2010