Alexander Livnat, Ph.D. 12/18/2014 This is the third out of five volumes describing EPA’s current state of knowledge of CCR damage cases. This volume comprises 32 damage case-specific modules. Each module contains background information on the host power plant, type and design of the CCR management unit(s), their hydrogeologic setting and status of groundwater monitoring system, evidence for impact, regulatory actions pursued by the state and remedial measures taken, litigation, and rationale for the site’s current designation as a potential damage case in reference to pre-existing screenings. Ample footnotes and a list of references provide links to sources of information. IIb Potential CCR Damage Cases PART I (Cases 1-32) December 2014 IIb. Coal Combustion Residuals Potential Damage Cases PART I (Cases PTb01 to PTb32) (Submitted and Assessed between 2010 – January 2011) 1 IIb Potential CCR Damage Cases PART I (Cases 1-32) December 2014 TABLE OF CONTENTS PTb01. Flint Creek Power Plant, American Electric Power - Southwestern Electric Power Company (SWEPCO), Gentry, Benton County, Arkansas ........................................................................................... 4 PTb02. Independence Steam Station, Entergy - Arkansas Power and Light (AP&L), Newark, Independence County, Arkansas ................................................................................................................... 9 PTb03. Montville Generating Station, NRG Energy/Montville Power LLC, Montville, New London County, Connecticut ................................................................................................................................... 15 PTb04. Indian River Power Plant, NRG Energy (Formerly: Delmarva Power), Burton Island, Millsboro, Sussex County, Delaware ........................................................................................................................... 19 PTb05. Big Bend Station, Tampa Electric Company (TECO), Apollo Beach, Hillsborough County, Florida ......................................................................................................................................................... 26 PTb06. CD McIntosh Jr. Power Plant, City of Lakeland, Lakeland, Polk County, Florida ...................... 31 PTb07. Curtis H. Stanton Energy Center, Orlando Utility Commission (OUC), Orlando, Orange County, Florida ......................................................................................................................................................... 36 PTb08. Seminole Generating Station, Seminole Electric Cooperative Inc. (SECI), Palatka, Putnam County, Florida ........................................................................................................................................... 40 PTb09. Joliet Generating Station 9 – Lincoln Stone Quarry Landfill, Midwest Generation, Joliet, Will County, Illinois ........................................................................................................................................... 43 PTb10. Marion Plant, Southern Illinois Power Cooperative, Marion, Williamson County, Illinois ......... 51 PTb11. Venice Power Station, Union Electric Company/Ameren Energy – AmerenUE, Venice, St. Clair and Madison Counties, Illinois ................................................................................................................... 57 PTb12. Clifty Creek Station, Indiana Kentucky Electric Corporation (IKEC), Madison, Jefferson County, Indiana ........................................................................................................................................................ 62 PTb13. Lansing Station Ash Ponds and Landfill – Alliant/IPL, Lansing, Allamakee County, Iowa ....... 68 PTb14. George Neal Station North Landfill, Berkshire Hathaway - MidAmerican Energy Company, Sergeant Bluff, Woodbury County, Iowa ................................................................................................... 73 PTb15. George Neal Station South Ash Monofill, Berkshire Hathaway – MidAmerican Energy Company, Salix, Woodbury County, Iowa ................................................................................................. 79 PTb16. Mill Creek Station, Louisville Gas and Electric (LG&E), Louisville, Jefferson County, Kentucky .................................................................................................................................................................... 82 PTb17. Shawnee Fossil Plant, Tennessee Valley Authority, Paducah, McCracken County, Kentucky .... 87 PTb18. Spurlock Power Station, Eastern Kentucky Power Cooperative (EKPC), Maysville, Mason County, Kentucky ....................................................................................................................................... 95 PTb19. Big Cajun 2 Power Plant, NRG Energy - Louisiana Generating, LLC, New Roads, Pointe Coupee Parish, Louisiana ....................................................................................................................................... 100 PTb20. Dolet Hills Power Station, CLECO Power LLC, Mansfield, De Soto Parish, Louisiana ........... 105 2 IIb Potential CCR Damage Cases PART I (Cases 1-32) December 2014 PTb21. Rodemacher Power Station, CLECO Power, LLC, Lena, Rapides Parish, Louisiana ................ 109 PTb22. Brandywine Coal Ash Landfill, Mirant Mid-Atlantic, LLC, Brandywine, Prince George’s County, Maryland ..................................................................................................................................... 113 PTb23. Mirant Dickerson’s Generation Station’s Westland Disposal Site, Montgomery County, Maryland ................................................................................................................................................... 118 PTb24. Karn/Weadock Generating Facility, Consumer Energy, Saginaw, Bay County, Hampton Charter Township, Michigan ................................................................................................................................. 123 PTb25. Marquette Board of Light & Power Pine Hill Landfill, Negaunee Township, Michigan ........... 130 PTb26. We Energies Presque Isle Power Plant Landfill, Marquette, Michigan....................................... 131 PTb27. Muskegon County Offsite Fly Ash Monofill, Moorland Township, Michigan .......................... 135 PTb28. John Warden Ash Site, L’Anse, Baraga County, Michigan ........................................................ 138 PTb29. Consumer Energy B.C. Cobb Landfill, Muskegon County, Michigan ....................................... 141 PTb30. Consumers Energy J.H. Campbell, West Olive, Port Sheldon Township, Ottawa County, Michigan ................................................................................................................................................... 143 PTb31. Sheldon Station, Nebraska Public Power District, Hallam, Lancaster County, Nebraska .......... 145 PTb32. Asheville Steam Electric Plant, Duke Energy (formerly: Progress Energy), Arden, Buncombe County, North Carolina ............................................................................................................................. 148 3 IIb Potential CCR Damage Cases PART I (Cases 1-32) December 2014 PTb01. Flint Creek Power Plant, American Electric Power - Southwestern Electric Power Company (SWEPCO), Gentry, Benton County, Arkansas Type: Landfill and Surface Impoundments. Background and Description: The 528 MW Flint Creek Power Plant site1 contains a 40-acre landfill which has been in operation since 1978 but was only permitted in 1994.2 The current landfill permit allows for disposal of dried fly ash and dredged bottom ash. The landfill has had a liner (a 6” compacted clay) only since 1994, and as of April 2010, also a leachate collection system.3 The site also contains a 42.8-acre primary ash pond and a 3.7-acre secondary ash pond located south of the plant operations area, both commissioned in 1978.4 Both ponds are unlined.5 The ponds receive primarily bottom ash, but also fly ash and coal pile and landfill runoff; the primary pond receives also boiler slag.6 The SWEPCO ponds at Flint Creek are dredged for re-use of the solids and/or their disposal elsewhere. The ponds and their dredged materials are exempt from regulation under the “use of recovered materials” provision in ADEQ 1 Name plate capacity is 558 MW. The plant occupies 1,500 acres. The dry bottom pulverized coal boiler furnace uses 5,000 tons/day of low-sulfur, subbituminous Powder River Basin coal from Wyoming, shipped via Kansas City Southern Railway; the ratio between fly ash and bottom ash plus boiler slag is approximately 70:30: EPRI (2002) and https://www.swepco.com/info/projects/FlintCreekPlant/. According to https://swepco.com/info/news/ViewRelease.aspx?releaseID=1187, it is the only baseload power plant in Northwest Arkansas. To comply with new EPA regulations, the Plant must install additional environmental controls to continue operation beyond 2015; on February 8, 2012, American Electric Power subsidiary SWEPCO asked the Arkansas Public Service Commission to review the company’s plans to install such environmental controls on the Flint Creek Power Plant. 2 Approximately 700 acres of SWEPCO’s Flint Creek Power Plant’s 1,600 acres are designated as wildlife habitat. In early 2007, Audubon Arkansas designated the Flint Creek property as an “Important Bird Area” (IBA). SWEPCO Lake, the year-round warm