October 5, 2020

List of Plants Where -Ash Contaminated Groundwater Exceeds Allowable State and/or Federal Limits (including Cleanup Plans & Known Public Meeting Information)

The first table below lists 124 plants in 28 states and Puerto Rico with industry cleanup plans for at least one regulated coal ash unit on site. This document also lists over 30 additional plants for consideration. The plant owners for at least 155 plants posted notifications that the groundwater exceeds state and/or federal limits of contamination for one or more of the following toxic substances for at least one regulated coal ash pond or landfill: Antimony, Arsenic, Barium, Beryllium, Cadmium, Chromium, Cobalt, Lead, Lithium, Molybdenum, Selenium, Thallium, and Radium 226 and 228 combined.

In addition, many of these units are coal ash ponds that are unlined and violate the federal aquifer separation standard, which requires five feet of separation from the base of the pond to the underlying groundwater.

Based on the federal coal ash rule, owners with contaminated sites must design cleanup plans (“Assessment of Corrective Measures”) to remediate any coal ash releases and to restore the contaminated area to its original condition. Owners may attempt to show that an alternate source is responsible for the contamination.

PUBLIC MEETING(S): The plant owner must discuss the results of the cleanup plan with interested and affected parties at least 30 days before the company selects a remedy. While there is no strict deadline for remedy selection, the utility must select a cleanup plan “as soon as feasible.” Thus, the exact dates of public meetings are determined on a site-by-site basis.

PUBLIC ENGAGEMENT IN THE CLEANUP PROCESS: It is critical for affected communities to play an active role in the review of the cleanup plan and in the cleanup selection process. Because there is no required oversight role for U.S. EPA or state regulators in many states, active community members are the frontline for ensuring adequate cleanup at these contaminated sites. Community evaluation of the cleanup plans are necessary to ensure timely, comprehensive, and health-protective remediation. For tools and tips to advocate for the most protective outcome, see https://earthjustice.org/coalash/toolkit/doc.

Additional information about the individual coal ash dumps at each plant, including links to owner compliance websites, is available on a map at https://earthjustice.org/features/map-coal-ash-contaminated-sites.

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Table 1. Plants with groundwater contamination and cleanup plans for at least one regulated coal ash unit at the plant.

Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) Healy Power antimony, arsenic, lithium, REPORT 1 GVEA AK Healy

Plant molybdenum, selenium 8/2018 Charles R. Power South beryllium, cobalt, lithium, REPORT 2 Lowman Power Energy AL Leroy 6/29/2020 molybdenum 7/11/2019, r. 5/2020

Plant Cooperative Tennessee Colbert Fossil REPORT 3 Valley AL Tuscumbia arsenic, cobalt

Plant 7/15/2019 Authority E.C. Gaston Alabama arsenic, lithium, molybdenum, REPORT 4 AL Wilsonville 7/6/2020

Steam Plant Power radium 226 and radium 228 6/2019 James H. Miller, Alabama REPORT 5 Jr., Electric AL Quinton arsenic, cobalt, lithium 7/7/2020 Power 6/2019

Generating Plant James M. Barry Alabama REPORT 6 Electric AL Bucks arsenic, cobalt 6/30/2020 Power 6/2019

Generating Plant Alabama REPORT

7 Plant Gadsen AL Gadsden arsenic, lithium Power 7/2020 Plant Greene Alabama REPORT 8 AL Demopolis arsenic, cobalt, lithium 6/29/2020

County Power 6/2019 William C. Gorgas Alabama REPORT (partial) 9 Electric AL Parrish arsenic, lithium, molybdenum 7/1/2020 Power 6/2019, Revised 10/2019

Generating Plant Arizona Public Cholla Power arsenic, cobalt, fluoride, lithium, REPORT 10 Service Electric AZ Joseph City

Plant molybdenum 6/14/2019 Company REPORT

11 Pawnee Station Xcel Energy CO Brush lithium 8/30/2019 Platte River Rawhide Energy REPORT & HERE 12 Power CO Wellington cobalt, selenium 11/13/2019

Station 6/13/2019 & 8/15/2019 Authority cobalt, lithium, molybdenum, REPORT

13 Valmont Station Xcel Energy CO Boulder selenium 6/6/2019 C.D. McIntosh Lakeland REPORT 14 FL Lakeland arsenic, lithium, radium

Power Plant Electric 6/12/2019

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) Crystal River Crystal arsenic, lithium, molybdenum, REPORT 15 Duke Energy FL

Energy Complex River radium 226 and radium 228 (ASD) 6/2019 REPORT

16 Plant Crist Gulf Power FL Pensacola cobalt, radium 12/19/2019 6/11/2019 REPORT

17 Plant Smith Gulf Power FL Southport arsenic, lithium 6/11/2019 Jacksonville St. John's River REPORT 18 Electric FL Jacksonville radium

Power Park 6/2019 Authority Power REPORT

19 GA Cartersville cobalt, (molybdenum) Company 6/2019 REPORT & HERE

20 Plant Hammond GA Rome arsenic, cobalt, molybdenum Company 6/2019 Georgia Power REPORT

21 Plant Yates GA Newman beryllium Company 6/2019 Burlington Interstate REPORT 22 Generating Power and IA Burlington lithium, molybdenum 9/12/2019

Station Light Company Lansing Interstate REPORT 23 Generating Power and IA Lansing arsenic 9/12/2019

Station Light Company Neal North MidAmerican Sergeant REPORT 24 IA molybdenum Energy Center Energy Co. Bluff 9/1/2020 Neal South MidAmerican REPORT 25 IA Salix arsenic 6/25/2019

Energy Center Energy Co. 5/28/2019 Ottumwa Interstate REPORT 26 Generating Power and IA Ottumwa cobalt 9/12/2019

Station Light Company Prairie Creek Interstate Cedar REPORT 27 Generating Power and IA arsenic, molybdenum Rapids 9/12/2019

Station Light Company Luminant Baldwin Energy REPORT (partial) 28 (formerly IL Baldwin lithium 12/2/2019

Complex r. 11/15/2019 Dynegy Inc.) Luminant Coffeen Power REPORT (partial) 29 (formerly IL Coffeen cobalt, lithium 10/7/2019

Station 7/8/2019 Dynegy Inc.)

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) Dallman Power City Water, Not completed 30 Generating Light and IL Springfield arsenic 6/26/2019 Update

Station Power Luminant Hennepin Power REPORT (partial) 31 (formerly IL Hennepin arsenic, cobalt, lithium, molybdenum 12/17/2019

Station 9/5/2019 Dynegy Inc.) Joliet #9 Generating REPORT 32 NRG IL Joliet arsenic, cobalt, lithium, molybdenum 8/27/2019 Station (Lincoln 5/31/2019

Stone Quarry) REPORT* Marion Power (remedy selection, no plan 33 SIPC IL Marion arsenic, cobalt, thallium 5/23/2019

Plant available) 6/19/2019 Luminant Wood River REPORT 34 (formerly IL Alton molybdenum 6/2020 Dynegy Inc.) A.B. Brown SIGECO, dba Mount REPORT (partial) 35 Generating Vectren Power IN arsenic, cobalt, lithium, molybdenum Vernon 9/2019

Station Supply Northern Bailly Generating Indiana Public REPORT 36 IN Chesterton arsenic, cadmium, lithium, thallium

Station Service 5/1/2019 Company arsenic, cadmium, chromium, cobalt, Cayuga lead, lithium, molybdenum, REPORT 37 Generating Duke Energy IN Cayuga selenium, thallium, radium 226 and 6/2019

Station radium 228 Indiana- Clifty Creek REPORT 38 Kentucky IN Madison molybdenum 11/9/2019

Station 9/19/2019 Electric Corp. Eagle Valley Indianapolis Martinsvill REPORT 39 Generating Power & Light IN arsenic, lithium, molybdenum e r. 10/11/2019

Station Company F.B. Culley SIGECO, dba REPORT 40 Generating Vectren Power IN Newburg arsenic, molybdenum 9/2019

Station Supply

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) Gallagher New REPORTS 41 Generating Duke Energy IN arsenic, molybdenum Albany 6/2019

Station Gibson REPORT (partial) 42 Generating Duke Energy IN Owensville arsenic, cobalt, lithium, molybdenum 6/2019

Station Harding Street Indianapolis Indianapoli antimony, arsenic, lithium, REPORT 43 Generating Power & Light IN s molybdenum 9/2019

Station Company Petersburg Indianapolis REPORT 44 Generating Power & Light IN Petersburg cadmium, cobalt, molybdenum r. 10/11/2019

Station Company Northern R.M. Schahfer Indiana Public REPORT 45 Generating IN Wheatfield cobalt, lithium, molybdenum Service 4/19/2019

Station Company Wabash River arsenic, chromium, cobalt, lead, Terre REPORT 46 Generating Duke Energy IN lithium, molybdenum, radium 226 Haute 8/2019

Station and radium 228 D.B. Wilson Big Rivers Centertow REPORT 47 Generating Electric KY cobalt n 6/13/2019

Station Corporation E.W. Brown Kentucky Harrodsbur REPORT 48 Generating Utilities KY lithium, molybdenum 9/2019 g 6/13/2019

Station Company East Bend Electric REPORT 49 Duke Energy KY Union lithium

Plant 4/2019 Owensboro Elmer Smith REPORT 50 Municipal KY Owensboro molybdenum 2/2019 (planned)

Station 5/29/2019 Utilities Kentucky Ghent Generating REPORTS HERE & HERE 51 Utilities KY Ghent lithium, molybdenum 9/18/2019

Station 7/3/2019 Company Mill Creek Louisville Gas REPORT & HERE 52 Generating & Electric KY Louisville lithium, molybdenum 5/28/2019

Station Company

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) Tennessee Paradise Fossil REPORT 53 Valley KY Drakesboro arsenic

Plant 7/15/2019 Authority Sebree Big Rivers REPORT 54 Generating Electric KY Robards lithium 6/13/2019

Station Corporation Tennessee Shawnee Fossil West REPORT 55 Valley KY molybdenum

Plant Paducah 7/15/2019 Authority Westland Ash REPORT 56 Management NRG MD Dickerson lithium, molybdenum, selenium 3/2019

Facility BC Cobb Power Consumers REPORT 57 MI Muskegon lithium, (others)

Plant Energy Co. 9/2019 DE Karn Power Consumers REPORT 58 MI Essexville arsenic, (others)

Plant Energy Co. 9/2019 JC Weadock Consumers REPORT 59 MI Essexville arsenic, beryllium, lithium, (others)

Power Plant Energy Co. 9/2019 JH Campbell Consumers REPORT 60 MI West Olive arsenic, (others)

Power Plant Energy Co. 9/2019 River Rouge DTE Electric River REPORT 61 MI arsenic, lithium

Power Plant Co. Rouge 4/15/2019 Labadie Energy REPORT 62 Ameren MO Labadie molybdenum 5/31/2019

Center 5/20/2019 Meramec Energy REPORT 63 Ameren MO St. Louis arsenic, molybdenum 5/31/2019

Center 5/17/2019 New Madrid Associated New REPORT 64 MO molybdenum 11/14/2019

Power Plant Electric Coop. Madrid r. 10/11/2019 Rush Island REPORT 65 Ameren MO Festus arsenic, molybdenum 5/31/2019

Energy Center 5/2019 Sioux Energy REPORT 66 Ameren MO West Alton molybdenum 5/31/2019

Center 5/2019 Choctaw Choctaw Generation REPORT 67 Generation; Red Limited MS Ackerman cobalt, lithium 6/29/2019

Hills Operations Partnership, LLLP

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) R.D. Morrow, Sr. Cooperative REPORT 68 Generating MS Purvis lithium, molybdenum Energy 9/12/2019

Station Mississippi REPORT 69 Plant Watson MS Power 8/2020 Colstrip Steam REPORT & HERE 70 Talen Energy MT Colstrip cobalt, lithium, molybdenum

Electric Station 4/2019 Montana- Lewis & Clark REPORT 71 Dakota Utilities MT Richland lithium, selenium

Station 8/2019 Co. Allen Steam arsenic, beryllium, cadmium, cobalt, REPORT 72 Duke Energy NC Belmont

Station lithium, thallium 4/10/2019 Asheville Steam REPORT 73 Duke Energy NC Arden cobalt, radium 226 and radium 228

Electric Plant 4/10/2019 Belews Creek Belews arsenic, beryllium, chromium, cobalt, REPORTS 74 Duke Energy NC

Steam Station Creek lithium, radium 226 and radium 228 4/10/2019 Buck Steam REPORTS 75 Duke Energy NC Salisbury cobalt, lithium

Station 4/10/2019 Cliffside Steam arsenic, beryllium, cobalt, lithium, REPORTS 76 Duke Energy NC Cliffside

Station radium 226 and radium 228 4/10/2019 Dan River Steam REPORT 77 Duke Energy NC Eden arsenic, lithium

Station 4/10/2019 H.F. Lee Energy REPORT 78 Duke Energy NC Goldsboro arsenic, cobalt, lithium

Complex 4/10/2019 L.V. Sutton REPORT 79 Duke Energy NC Wilmington arsenic, cobalt, lithium, molybdenum

Energy Complex 4/10/2019 Marshall Steam arsenic, beryllium, cobalt, lithium, REPORT 80 Duke Energy NC Terrell

Station thallium, radium 226 and radium 228 4/10/2019 Roxboro Steam arsenic, cobalt, lithium, REPORTS 81 Duke Energy NC Semora

Electric Plant molybdenum, selenium 4/10/2019 W.H. Robeson REPORT 82 Weatherspoon Duke Energy NC arsenic, radium 226 and radium 228 County 4/10/2019

Power Plant North Omaha Omaha Public Douglas arsenic, cobalt, lithium, REPORT 83 NE Station Power District County molybdenum, selenium 7/5/2019 Four Corners Arizona Public REPORT 84 NM Fruitland cobalt, fluoride, molybdenum

Power Plant Service Co. 6/14/2019

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) 12/18/2019- Huntley REPORT (partial) 1/18/2020, *invitation 85 Generating NRG NY Tonawanda arsenic 8/2019 to send comments

Station only Lockwood Ash Lockwood Hills *Report completed but not 86 NY Torrey arsenic, chromium

Disposal Site LLC available Buckeye Power REPORT

87 Cardinal Plant OH Brillant lithium, molybdenum 9/4/2019 Co. & AEP 7/9/2019 American REPORT

88 Conesville Plant OH Conesville arsenic, lithium, molybdenum 8/8/2019 Electric Power 6/24/2019 arsenic, barium, cobalt, lithium, AES Ohio REPORTS

89 JM Stuart Station OH Aberdeen molybdenum, radium 226 and Generation r. 10/8/2019 radium 228, selenium AES Ohio Mancheste REPORT

90 Killen Station OH lithium, molybdenum Generation r r. 10/8/2019 Kyger Creek Ohio Valley REPORT 91 OH Cheshire arsenic 11/6/2019 Station Electric Corp. 9/2019 Luminant Miami Fort Power REPORT (partial) 92 (formerly OH North Bend arsenic, cobalt, molybdenum 12/16/2019 Station 9/5/2019 Dynegy Inc.) Bruce Mansfield Shippingpo REPORT 93 Plant (Little Blue FirstEnergy PA arsenic, lithium rt 6/12/2019

Run) Brunner Island REPORT 94 Steam Electric Talen Energy PA York Haven arsenic, lithium, molybdenum 6/12/2019

Station Conemaugh New REPORT 95 Generating GenOn PA UNCLEAR Florence 1/2019

Station Hatfield's Ferry Masontow REPORT 96 FirstEnergy PA cobalt, lithium

Power Station n 10/2019 Homer City REPORT 97 Generating NRG PA Homer City lithium 9/2019

Station AES Puerto REPORT 98 AES Puerto Rico PR Guayama lithium, molybdenum, selenium 12/12/2019 Rico 9/2019 Cross Generating REPORT & HERE 99 Santee Cooper SC Cross beryllium, cobalt, lithium 12/3/2019 Station 6/12/2019 & 9/11/2019

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) H.B. Robinson arsenic, lithium, radium 226 and REPORT 100 Steam Electric Duke Energy SC Hartsville radium 228 4/10/2019

Plant W.S. Lee Steam Williamsto REPORTS 101 Duke Energy SC antimony, beryllium, cobalt, lithium

Station n 4/10/2019 Wateree Dominion REPORT (note: removal 102 Generating SC Eastover arsenic, lithium Energy 6/2019 completed Sept. 2019)

Station Winyah Georgetow REPORT 103 Generating Santee Cooper SC arsenic, lithium, molybdenum 12/10/2019 n 9/2019

Station Tennessee REPORT

104 Allen Fossil Plant Valley TN Memphis arsenic, fluoride, lead, molybdenum 7/15/2019 Authority Tennessee Cumberland Cumberlan REPORT 105 Valley TN arsenic, cobalt, lithium

Fossil Plant d City 7/15/2019 Authority Tennessee Gallatin Fossil REPORT 106 Valley TN Gallatin lithium

Plant 7/15/2019 Authority Tennessee New Johnsonville REPORT 107 Valley TN Johnsonvill cobalt

Fossil Plant 7/15/2019 Authority e Luminant Big Brown Steam barium, cobalt, lithium, radium 226 REPORT 108 Generation TX Fairfield

Electric Station and radium 228, selenium 9/2019 Co., LLC Martin Lake Luminant REPORT & HERE 109 Steam Electric Generation TX Tatum arsenic, barium, cobalt, lithium 11/13/2019 9/2019

Station Co., LLC Luminant Oak Grove Steam REPORT 110 Generatio Co., TX Franklin cobalt, lithium 10/29/2019 Electric Station 9/2019 LLC San Miguel Electric lithium, mercury, radium 226 and REPORT 111 San Miguel Plant TX Christine 12/18/2019 Cooperative, radium 228 9/11/2019 Inc. Hunter Power PacifiCorp REPORT 112 UT Castle Dale cobalt, lithium, molybdenum 7/23/2019

Plant Energy 6/2019

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Name of Plant Contamination Found Above Federal Cleanup Plan (note: limited Owner/ (incl. link to State City and/or State Groundwater Limits to unit(s) with SSLs & Initial Public Meeting Operator Website) per Admission (appendix IV SSL) without ASDs, not full site) Huntington PacifiCorp chromium, cobalt, lithium, REPORT 113 UT Huntington 7/23/2019

Power Plant Energy molybdenum, selenium 6/2019 Intermountain Intermountain arsenic, chromium, cobalt, lithium, REPORT 114 Generating Power Service UT Delta molybdenum 1/9/2019

Facility Corp. REPORT Bremo Power Dominion Bremo 5/3/2019 115 VA cobalt, lithium, molybdenum

Station Energy Bluff REPORT & HERE 9/1/2020 arsenic, cobalt, lithium, radium 226 Chesterfield Dominion REPORT 116 VA Chester and radium 228, (lead),

Power Station Energy 5/14/2019 (molybdenum) REPORT & HERE 6/27/2019 Possum Point Dominion REPORT 117 VA Dumfries arsenic, cobalt

Power Station Energy 6/2020 REPORT 8/2020 Harrison Power Monongahela REPORT 118 WV Haywood arsenic, molybdenum

Station Power Co. 10/2019 Mountaineer American REPORT 119 WV New Haven lithium 8/22/2019 Plant Electric Power 6/24/2019 Allegheny Pleasants Power Willow arsenic, barium, fluoride, lithium, REPORT 120 Energy Supply WV

Station Island radium 226 and radium 228 10/2019 Co. Dave Johnston PacifiCorp arsenic, cadmium, molybdenum, REPORT 121 WY Glen Rock 8/1/2019

Power Plant Energy radium 5/2019 arsenic, cadium, cobalt, Jim Bridger Power PacifiCorp Point of fluoride, lead, lithium, molybdenum, REPORT 122 WY 7/25/2019

Plant Energy Rocks radium 226 and radium 228, 5/2019 selenium Basin Electric Laramie River REPORT 123 Power WY Wheatland lithium, molybdenum 1/30/2020 Station 8/30/2019 Cooperative Naughton Power PacifiCorp cobalt, lithium, molybdenum, radium REPORT, HERE, & HERE 124 WY Kemmerer 7/22/2019

Plant Energy 226 and radium 228, selenium 5/2019

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Additional plants are required to post their first or additional cleanup plans or alternate source demonstrations soon. See, e.g., Dunkirk Generating Station (initiated assessment of corrective measures on 7/6/2020), *Plant Hammond (on 7/9/2020), *Gibson Generating Station (on 5/7/2020), Whitewater Valley Station (in 5/2020), Chesapeake Power Station (on 7/2/2020), and Plant McDonough (on 7/9/2020).

Plant owner admission that the groundwater exceeds state and/or federal limits of contamination at a site triggers the cleanup up plan requirement. Each plant owner must develop a cleanup plan (“Assessment of Corrective Measures”) designed to remediate any coal ash releases and to restore the contaminated area to its original condition. The plans must be initiated within 90 days of a contamination finding, and notice of initiation may be publicly posted up to 60 days after initiation. Cleanup plans must be completed within 90 to 150 days of initiation, and publicly posted 30 days after completion. Owners may attempt to show that an alternate source is responsible for the contamination. Cleanup plans are required at all plants if the owners do not demonstrate that a source other than the regulated coal ash dumps caused the contamination.

The following table includes 24 plants in 14 states whose owners have posted notifications that the groundwater exceeds state and/or federal limits of contamination (SSLs), as well as an alleged Alternate Source Demonstration (ASD) for all applicable units.

Table 2. Plants with initial admissions of groundwater contamination, but no cleanup plan for any unit at the site.

Name of plant Owner/Operator State City Appendix IV SSL Exceedances per Latest ASD admissions Date for SSL 1 Plant McIntosh Georgia Power GA Rincon lithium, cobalt 11/21/2019 Company 2 Georgia Power GA Juliette cobalt 4/26/2019 Company 3 Plant Wansley Georgia Power GA Carrollton lithium 12/2/2019 Company 4 Powerton Generating Station NRG IL Pekin arsenic, barium, molybdenum, selenium, 3/25/2019 thallium 5 Jeffrey Energy Center Evergy KS St. Mary's molybdenum 5/22/2019 6 Nearman Creek Power Station Kansas City Board of KS Kansas City arsenic 12/12/2018 Public Utilities 7 Tecumseh Energy Center Evergy KS Tecumseh arsenic, cobalt 10/14/2019 8 Big Sandy Plant Kentucky Power Co. KY Louisa beryllium, cobalt, lithium 1/16/2020 9 Trimble County Generating Louisville Gas & Electric KY Bedford arsenic (ASD), lithium, molybdenum, 4/26/2019 Station Company selenium 10 Boswell Energy Center Minnesota Power MN Cohasset arsenic 12/2/2019

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11 John Twitty Energy Center City Utilities of MO Brookline antimony 1/3/2019 Springfield 12 Plant Victor Daniel Mississippi Power MS Moss Point lithium 11/15/2019 13 Nebraska City Generating Omaha Public Power NE Nebraska City arsenic 4/8/2019 Station District 14 W. H. Sammis Power Station FirstEnergy OH Stratton cobalt 8/22/2019 15 Zimmer Power Station Luminant (formerly OH Moscow lithium 10/28/2019 Dynegy Inc.) 16 Northeastern 3&4 Power American Electric Power OK Oologah lithium 10/29/2019 Station 17 Montour Steam Electric Talen Energy PA Washingtonville cobalt, lithium 1/30/2020 Station 18 Gibbons Creek Steam Electric Texas Municipal Power TX Anderson beryllium, cadmium, cobalt, lead, lithium, 4/2019 Generating Station Agency radium 226 and radium 228 19 H.W. Pirkey Power Plant American Electric Power TX Hallsville cadmium, cobalt, lithium, mercury 4/2/2020 20 J. Robert Welsh Power Plant American Electric Power TX Pittsburg lithium 3/10/2020 21 Clover Power Station Dominion Energy VA Clover cobalt 12/18/2018 22 Virginia City Hybrid Energy Dominion Energy VA St. Paul lithium 10/3/2019 Center 23 Yorktown Power Station Dominion Energy VA Yorktown cobalt, molybdenum 4/30/2019 24 Mount Storm Power Station Dominion Energy WV Mount Storm fluoride, molybdenum 5/24/2019

In addition, the owners of the following three plants posted notifications that the groundwater exceeds state and/or federal limits of contamination (SSLs) for at least one unit at each plant, but failed to post a clean-up plan OR an alternate source demonstration for any unit at the plant: 1. Deerhaven Generating Station, Gainesville Regional Utilities, FL 2. JB Sims Power Generation Plant, Grand Haven Board of Light and Power, MI 3. New Castle Generating Station, NRG, PA (applicable unit allegedly closed by removal)

See A Toolkit to Advocate for Coal Ash Cleanups for additional information.

Contact Lisa Evans ([email protected]) or Flora Champenois ([email protected], 215-717-4523) with any questions or updates to the tables above.

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