## Database of Survey Responses (April 12, 2012) http://www.epa.gov/osw/nonhaz/industrial/special/fossil/surveys/index.htm

Company Facility Street_Address City State Zip_Code Unit 1 Hazard Potential 2 Year

Commissioned 2 Expansion(s) 3 Fly Ash 3 Bottom Ash 3 Boiler Slag 3 FGD 3 Other Residuals 4 PE Design 4 PE Constructed 4 PE Monitored 5 Last Company Assessment 5 Next

Company Assessment 6 Last

Regulatory Inspection 6_RegAssessme

ntAdequate 6 Next

Regulatory Inspection 7_SignificantDe

ficienciesIdenti fied 7 Significant

Deficiencies 7 Corrective

Measures 8 Surface Area

(acre) 8 Storage

Capacity (acre ft) 8 Unit Height

(ft) 9 Historical

Releases 9 Historical

Releases Identified Additional Data mailing Site Visit

Alabama Power Co Barry Power Station 15300 U.S. Highway 43 North Bucks AL 36512 Barry Ash Pond None 1965 1972, 1992, 1998, 2004 TRUE TRUE TRUE TRUE FALSE FALSE TRUE 1/20/2009 FALSE FALSE 597 5965 20 FALSE 1st round 5

Alabama Power Co Gadsden Power

Station 1000 Goodyear Avenue East Gadsden AL 35903Ash Pond (NID #1428) Low 1948 1976, 1979, 1983 TRUE TRUE TRUE TRUE FALSE FALSE TRUE 11/19/2008 11/2009 FALSE FALSE 68 753 16 FALSE 1st Round 9

Alabama Power Co Gorgas Power Station 460 Gorgas Road Parrish AL 35580Ash Pond (NID #1198) Rattlesnake Dam Significant 1954 1979, 2007 TRUE TRUE TRUE TRUE FALSE FALSE TRUE 11/12/2008 11/2009 FALSE FALSE 420 10750 140 FALSE 1st round 1 Alabama Power Co Gorgas Power Station 460 Gorgas Road Parrish AL 35580 Gypsum Pond None 2007 FALSE FALSE FALSE TRUE gypsum only FALSE FALSE FALSE FALSE FALSE 21 983 80 FALSE 1st round 1

Alabama Power Co Greene County Power

Station P.O. Box 440 Demopolis AL 36732 Ash Pond None 1964 1996 TRUE TRUE TRUE TRUE FALSE FALSE TRUE 3/24/2009 FALSE FALSE 474 5331 25 FALSE (5) small slide upstream erosion 1st round 5

Alabama Power Co James H. Miller Jr.

Power Station 4250 Porter Road Quinton AL 35130Ash Pond (NID #1101) Low 1978 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 11/13/2008 11/2009 FALSE FALSE 341 13606 170 FALSE 1st Round 9 Allegheny Energy Supply Co LLC Pleasants Power

Station One Power Station

Boulevard, State Route Two, Willow island WV 26134 McElroy's Run Embankment High 1978 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 3/2009 3/1/2009 Yes FALSE FALSE 219 17548 233 FALSE 1st round 3 Allegheny Energy Supply Co LLC R Paul Smith Power

Station 15952 Lockwood Road Williamsport WV 21795 Lagoon Dam #3 Significant early 1960's TRUE TRUE FALSE FALSE FALSE FALSE FALSE 2/2009 2/1/2009 Yes FALSE FALSE 7 81 50 FALSE 1st round 3 Allegheny Energy Supply Co LLC R Paul Smith Power

Station 15952 Lockwood Road Williamsport WV 21795 Lagoon Dam #4 Significant early 1960's TRUE TRUE FALSE FALSE FALSE FALSE FALSE 2/2009 2/1/2009 Yes FALSE FALSE 13 161 40 FALSE 1st round 3

Allete Inc Clay Boswell Power

Station 1210 Northwest 3rd Street Cohasset MN 55721Central Wastewater Treatment Pond None 1980 FALSE TRUE FALSE FALSE other TRUE TRUE FALSE FALSE FALSE 2 9 0 FALSE (8) Height: 0 Ft (below grade) 1st round 4

Allete Inc Clay Boswell Power

Station 1210 Northwest 3rd Street Cohasset MN 55721 Coal Pile Sump None 1972 TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 1 20 TRUE Apr 2008 - Overflow into nearby lake 1st round 4

Allete Inc Clay Boswell Power

Station 1210 Northwest 3rd Street Cohasset MN 55721 Inactive Units 1, 2 & 3 Bottom Ash Pond None 1973 FALSE TRUE FALSE FALSE other FALSE FALSE FALSE FALSE FALSE 200 3413 40 FALSE 1st round 4

Allete Inc Clay Boswell Power

Station 1210 Northwest 3rd Street Cohasset MN 55721 Unit 3 Fly Ash Pond None 1979 TRUE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE 645 2666 49 FALSE 1st round 4

Allete Inc Clay Boswell Power

Station 1210 Northwest 3rd Street Cohasset MN 55721 Units 1 - 4 Bottom Ash Pond None 1979 TRUE TRUE TRUE FALSE other TRUE TRUE FALSE FALSE FALSE 645 1380 49 FALSE 1st round 4

Allete Inc Clay Boswell Power

Station 1210 Northwest 3rd Street Cohasset MN 55721 Units 1, 2 & 4 Fly Ash and Scrubber Slurry Pond None 1979 TRUE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE 645 7190 49 FALSE 1st round 4

Allete Inc Syl Laskin Power

Station P.O.Box 166 Aurora MN 55705 Cell E None 2000 TRUE TRUE TRUE FALSE other TRUE TRUE FALSE No TRUE NPDES groundwater monitoring well exceedances (no structural integrity issues) FALSE 23 174 28 FALSE 1st Round 7

Allete Inc Syl Laskin Power

Station P.O.Box 166 Aurora MN 55705 Cells A, B, C & D (retired) None early 1960's TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE 73 730 10 FALSE 1st Round 7

Alliant Energy Columbia Power

Station W8375 Murray Road Pardeeville WI 53954 Landfill Storm Water Pond None 1984 TRUE TRUE FALSE FALSE other TRUE TRUE FALSE 3/2009 6/1/2008 No FALSE FALSE 11 11 10 FALSE 1st Round 7

Alliant Energy Columbia Power

Station W8375 Murray Road Pardeeville WI 53954 Polishing Pond None 1975 TRUE TRUE FALSE FALSE other TRUE FALSE FALSE 3/2009 FALSE FALSE 1 5 1 FALSE 1st Round 7

Alliant Energy Columbia Power

Station W8375 Murray Road Pardeeville WI 53954 Primary Ash Pond None 1975 TRUE TRUE FALSE FALSE other TRUE FALSE FALSE 3/2009 FALSE FALSE 9 72 23 FALSE 1st Round 7

Alliant Energy Columbia Power

Station W8375 Murray Road Pardeeville WI 53954Secondary Ash Pond None 1975 TRUE TRUE FALSE FALSE other TRUE FALSE FALSE 3/2009 FALSE FALSE 16 204 23 FALSE 1st Round 7

Alliant Energy Lansing Power Station 2320 Power Plant Drive Lansing IA 52151 Lower Ash Pond None 1975 TRUE TRUE FALSE FALSE ash transport water, waste water, boiler blowdown TRUE TRUE FALSE 3/12/2009 No FALSE FALSE 0 2 8 FALSE (8) surface area 0.2 acres 1st round 7

Alliant Energy Lansing Power Station 2320 Power Plant Drive Lansing IA 52151 Main Ash Pond None 1975 TRUE TRUE FALSE FALSE ash transport water, waste water TRUE TRUE FALSE 3/12/2009 No FALSE FALSE 15 294 20 FALSE 1st round 7 Ameren Energy Generating Co Duck Creek Power

Station 17751 North Cilco Road Canton IL 61520 Ash Pond 1 None 1976 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 2009 FALSE FALSE 58 1900 50 FALSE 1st round 6 Ameren Energy Generating Co Duck Creek Power

Station 17751 North Cilco Road Canton IL 61520 Ash Pond 2 None 1986 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 2009 FALSE FALSE 85 1000 45 FALSE 1st round 6 Ameren Energy Generating Co E. D. Edwards Power

Station 7800 South Cilco Lane Bartonville IL 61607 Ash Pond None 1960 TRUE TRUE FALSE FALSE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 89 1800 32 FALSE 1st round 6 Ameren Energy Generating Co Hutsonville Power

Station 15142 East 1900 Avenue Hustonville IL 62433 Ash Pond A Low 1986 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 14 250 22 FALSE 1st Round 10 Ameren Energy Generating Co Hutsonville Power

Station 15142 East 1900 Avenue Hustonville IL 62433 Ash Pond B None 2000 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 4 70 17 FALSE 1st Round 10 Ameren Energy Generating Co Hutsonville Power

Station 15142 East 1900 Avenue Hustonville IL 62433 Ash Pond C None 2000 TRUE TRUE FALSE FALSE other TRUE TRUE TRUE 2009 FALSE FALSE 2 20 12 FALSE 1st Round 10 Ameren Energy Generating Co Hutsonville Power

Station 15142 East 1900 Avenue Hustonville IL 62433 Bottom Ash Pond None 1940 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 1 6 15 FALSE 1st Round 10 Ameren Energy Generating Co Meredosia Power

Station 800 West Washington Meredosia IL 62665 Bottom Ash Pond None 1972 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 34 186 24 FALSE 1st round 6

Ameren Energy Generating Co Meredosia Power

Station 800 West Washington Meredosia IL 62665 Fly Ash Pond None 1968 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 186 700 24 TRUE 2006 - less than 500 gallons spilled from the Fly Ash Pond 1st round 6 Ameren Energy Generating Co Newton Power

Station 6725 North 500th Street Newton IL 62448 Primary Ash Pond None 1977 TRUE TRUE FALSE FALSE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 400 9250 47 FALSE 1st round 6 Ameren Energy Generating Co Newton Power

Station 6725 North 500th Street Newton IL 62448Secondary Ash Pond None 1977 TRUE TRUE FALSE FALSE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 9 83 29 FALSE 1st round 6

Ameren UE Labadie Power

Station 10 Labadie Power Plant Road Labadie MO 63055 Bottom Ash Pond None 1970 TRUE TRUE FALSE FALSE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 154 12000 30 FALSE 1st round 8

Ameren UE Labadie Power

Station 10 Labadie Power Plant Road Labadie MO 63055 Fly Ash Pond None 1993 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 79 1900 30 FALSE 1st round 8

Ameren UE Meramec Power

Station 8200 Fine Road St. Louis MO 63129 Bottom Ash Pond (3) None 1950's FALSE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 14 280 25 FALSE 1st round 7

Ameren UE Meramec Power

Station 8200 Fine Road St. Louis MO 63129 New Fly Ash Pond None 2003 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 14 230 25 FALSE 1st round 7

Ameren UE Meramec Power

Station 8200 Fine Road St. Louis MO 63129Old Fly Ash Pond None 2000 TRUE FALSE FALSE FALSE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 18 300 25 FALSE 1st round 7

Ameren UE Meramec Power

Station 8200 Fine Road St. Louis MO 63129 Retention Pond None 1977 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 1 10 25 FALSE 1st round 7

Ameren UE Rush Island Power

Station 100 Big Hollow Road Festus MO 63028 Ash Pond None 1976 TRUE TRUE FALSE FALSE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 104 7000 35 FALSE 1st round 7

Ameren UE Sioux Power Station 8501 North State Route 94 West Alton MO 63386 Bottom Ash Pond None 1967 TRUE FALSE TRUE TRUE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 47 2100 27 FALSE 1st round 7

Ameren UE Sioux Power Station 8501 North State Route 94 West Alton MO 63386 Fly Ash Pond None 1994 TRUE FALSE FALSE FALSE other, process water TRUE TRUE TRUE 2009 FALSE FALSE 60 960 22 FALSE 1st round 7 American Electric Power KY Power Co - Big

Sandy Power Station 23000 Highway 23 North Louisa KY 41230 Bottom Ash Complex Low 1969 FALSE TRUE FALSE FALSE FALSE FALSE TRUE 10/23/2008 2011 FALSE FALSE 5 40 16 FALSE 1st round 3 American Electric Power KY Power Co - Big

Sandy Power Station 23000 Highway 23 North Louisa KY 41230 Fly Ash High 1969 1992 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 10/23/2008 2009 6/3/2008 Yes FALSE FALSE 97 8302 152 FALSE 1st round 3

American Electric Power Cardinal Operating Co

- Cardinal Power Station 306 County Road 7 East Brilliant OH 43913 Bottom Ash Complex Significant 1973 FALSE TRUE FALSE FALSE FALSE FALSE TRUE 11/5/2008 2010 2/20/2009 Undelivered FALSE FALSE 32 350 22 FALSE 1st round 2

American Electric Power Cardinal Operating Co

- Cardinal Power Station 306 County Road 7 East Brilliant OH 43913 Fly Ash Reservoir 2 High 1987 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 11/5/2008 2009 2/20/2009 Undelivered FALSE FALSE 96 11350 237 TRUE spill - right abutment in 2004 1st round 2

American Electric Power Appalachian Power

Co - Clinch River C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 Carbo VA Bottom Ash Pond 1A/1B Low 1964 1971 TRUE TRUE FALSE FALSE FALSE FALSE TRUE 1/7/2009 2010 3/19/2008 Undelivered FALSE FALSE 45 1240 55 FALSE (5) 1A - reassess stability of dike; 1B - seepage control on D/S slope 1st Round 9

American Electric Power Appalachian Power

Co - Clinch River C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 Carbo VA Bottom Ash Pond 2 Low 1964 TRUE TRUE FALSE FALSE FALSE FALSE FALSE 2008 3/19/2008 Undelivered FALSE FALSE 0 1332 73 FALSE 1st Round 9

American Electric Power Columbus Southern

Power Co - Conesville Power Station 47201 County Road 273 Conesville OH 43811Ash Pond Complex Significant 1972 TRUE TRUE FALSE TRUE FALSE FALSE TRUE 10/27/2008 2010 12/22/2008 Yes FALSE FALSE 49 865 35 FALSE 1st round 3

American Electric Power Southwestern Electric

Power Co - Flint Creek Power Station 21797 Swepco Plant Road Gentry AR 72734 Primary Bottom Ash Pond None 1978 TRUE TRUE TRUE FALSE coal pile and landfill runoff TRUE TRUE TRUE 3/30/2009 2012 FALSE FALSE 43 484 47 FALSE 1st Round 9

American Electric Power Southwestern Electric

Power Co - Flint Creek Power Station 21797 Swepco Plant Road Gentry AR 72734Secondary Bottom Ash Pond None 1978 TRUE TRUE FALSE FALSE coal pile and landfill runoff TRUE TRUE TRUE 3/30/2009 2012 FALSE FALSE 4 24 35 FALSE 1st Round 9

American Electric Power OH Power Co -

General James M. Gavin Power Station 7397 North State Route #7 Cheshire OH 45620 Bottom Ash Pond High 1974 FALSE TRUE FALSE FALSE FALSE FALSE TRUE 10/29/2008 2009 8/20/2007 No FALSE FALSE 85 1530 36 FALSE 1st round 1

American Electric Power OH Power Co -

General James M. Gavin Power Station 7397 North State Route #7 Cheshire OH 45620 Fly Ash Pond High 1974 1987 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 10/29/2008 No FALSE FALSE 325 23365 144 FALSE 1st round 1

American Electric Power Appalachian Power

Co - Glen Lyn Power Station Route 460 Glen Lyn VA 24093 Bottom Ash Pond Low 1963 FALSE TRUE FALSE FALSE FALSE FALSE TRUE 1/13/2009 2010 3/18/2008 Undelivered FALSE FALSE 5 90 35 FALSE 1st Round 9

American Electric Power Appalachian Power

Co - Glen Lyn Power Station Route 460 Glen Lyn VA 24093 Fly Ash Pond Low 1965 TRUE FALSE FALSE FALSE FALSE FALSE TRUE 1/13/2009 2010 3/18/2008 Undelivered FALSE FALSE 8 185 43 FALSE 1st Round 9

American Electric Power Appalachian Power

Co - John E. Amos Power Station 1530 Winfield Road St. Albans WV 25177 Bottom Ash Complex Significant 1971 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 9/24/2008 2010 2/10/2009 Yes FALSE clear emergency spillway TRUE 30 220 24 FALSE 1st round 2

American Electric Power Appalachian Power

Co - John E. Amos Power Station 1530 Winfield Road St. Albans WV 25177 Fly Ash Pond High 1971 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 10/1/2008 2009 2/10/2009 Yes FALSE FALSE 175 2687 223 FALSE 1st round 2 American Electric Power OH Power Co -

Kammer Power Plant State Rte 2 Moundsville WV 26041 Boiler Slag Pond None 1963 FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 2 22 0 FALSE ash removed 1st

American Electric Power Appalachian Power

Co - Kanawha River Power Station Route 60 East Glasgow WV 25086 Bottom Ash Complex None 1977 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 6 116 0 FALSE (8) height - incised 1st

American Electric Power OH Power Co -

Mitchell Power Plant C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 Moundsville WV Bottom Ash Complex Significant 1975 FALSE TRUE FALSE FALSE FALSE FALSE TRUE 2/24/2009 2011 2/24/2009 Undelivered FALSE FALSE 18 262 30 FALSE 1st round 2

American Electric Power OH Power Co -

Mitchell Power Plant C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 Moundsville WV Fly Ash Pond High 1971 2009 TRUE FALSE FALSE FALSE coal prep plant solids TRUE TRUE TRUE 2/24/2009 2010 10/17/2008 Undelivered FALSE FALSE 71 13500 410 FALSE 1st round 2

American Electric Power Appalachian Power

Co - Mountaineer Power Station State Route 33 New Haven WV 25265 Bottom Ash Complex Significant 1980 2006 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 2/11/2009 2011 3/11/2009 Undelivered FALSE FALSE 29 508 35 FALSE 1st round 2

American Electric Power OH Power Co -

Muskingum River Power Station 1501 Sparling Road Waterford OH 45786 Middle Fly Ash Pond High 1968 TRUE FALSE FALSE FALSE FALSE FALSE TRUE 5/30/2008 2009 11/3/2008 Yes FALSE FALSE 27 1370 100 FALSE 1st round 3

American Electric Power OH Power Co -

Muskingum River Power Station 1501 Sparling Road Waterford OH 45786 Unit 1-4 Boiler Slag Pond Low 1950's FALSE FALSE TRUE FALSE FALSE FALSE TRUE 5/30/2008 2011 11/3/2008 Yes FALSE FALSE 8 100 25 FALSE 1st round 3

American Electric Power OH Power Co -

Muskingum River Power Station 1501 Sparling Road Waterford OH 45786 Unit 5 Bottom Ash Pond (Lower Fly Ash Pond) High 1968 1975 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 5/30/2008 2009 11/3/2008 Yes FALSE FALSE 18 660 75 FALSE 1st round 3

American Electric Power OH Power Co -

Muskingum River Power Station 1501 Sparling Road Waterford OH 45786 Upper Fly Ash Pond High 1975 2005 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 5/30/2008 2009 No FALSE FALSE 69 5250 158 FALSE 1st round 3

American Electric Power OK Public Service Co -

Northeastern 3 & 4 Plant C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 OK Bottom Ash Pond None 1980 1981 FALSE TRUE FALSE FALSE FALSE FALSE FALSE 11/1/2008 2/27/2009 Undelivered FALSE FALSE 69 700 8 FALSE 1st Round 9

American Electric Power OK Public Service Co -

Oklaunion Power Station 12567 FM Road 3430 Vernon TX 76384 Pond #23 None 1986 TRUE TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE 13 333 0 FALSE (8) height - incised 1st Round 9

American Electric Power OK Public Service Co -

Oklaunion Power Station 12567 FM Road 3430 Vernon TX 76384 Pond #6 None 1986 TRUE TRUE FALSE TRUE TRUE TRUE TRUE FALSE FALSE 58 1044 24 FALSE 1st Round 9

American Electric Power OK Public Service Co -

Oklaunion Power Station 12567 FM Road 3430 Vernon TX 76384 Sludge Pond None 1986 FALSE FALSE FALSE TRUE TRUE TRUE TRUE FALSE FALSE 23 565 0 FALSE (8) height - incised 1st Round 9

American Electric Power Appalachian Power

Co - Philip Sporn Power Station State Route 33 New Haven WV 25265 Bottom Ash Pond Significant 1974 2002 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 10/1/2008 2010 3/11/2009 Undelivered FALSE remediate erosion on eastern dike TRUE 12 256 42 FALSE (5) remediate foundations at overflows, address erosion 1st round 2

American Electric Power Appalachian Power

Co - Philip Sporn Power Station State Route 33 New Haven WV 25265 Fly Ash Pond High 1973 2002 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 10/1/2008 2009 3/11/2009 Undelivered FALSE evaluate scour on eastern dike (from 2005 inspect), slippage at western dike TRUE 61 1965 65 FALSE (5) remediate erosion, slippage on western dike 1st round 2

American Electric Power Columbus Southern

Power Co - Picway Power Station 9301 US Route 23 Lockbourne OH 43137 Ash Pond Low 1954 2008 TRUE TRUE FALSE FALSE FALSE FALSE TRUE 10/25/2007 2010 2/9/2009 Yes FALSE FALSE 23 275 24 FALSE 1st Round 10

American Electric Power Southwestern Electric

Power Co - Pirkey Power Station 2400 FM Road 3251 Hallsville TX 75650Auxilliary Surge Pond None 1985 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 3/19/2009 FALSE FALSE 4 64 16 FALSE 1st round 8

American Electric Power Southwestern Electric

Power Co - Pirkey Power Station 2400 FM Road 3251 Hallsville TX 75650 East Bottom Ash Pond None 1985 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 3/19/2009 2012 1/13/2009 Undelivered FALSE FALSE 31 188 4 FALSE 1st round 8

American Electric Power Southwestern Electric

Power Co - Pirkey Power Station 2400 FM Road 3251 Hallsville TX 75650Scrubber Sludg Landfill Runoff Pond None 1993 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 3/19/2009 2012 FALSE FALSE 13 25 19 FALSE 1st round 8

American Electric Power Southwestern Electric

Power Co - Pirkey Power Station 2400 FM Road 3251 Hallsville TX 75650Secondary Bottom Ash Pond None 1985 FALSE TRUE FALSE FALSE FALSE FALSE FALSE 1/13/2009 Undelivered FALSE FALSE 3 12 0 FALSE (8) height - incised 1st round 8

American Electric Power Southwestern Electric

Power Co - Pirkey Power Station 2400 FM Road 3251 Hallsville TX 75650 Surge Pond None 1985 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 3/19/2009 2012 3/19/2009 Undelivered FALSE FALSE 5 19 0 FALSE (8) height - incised 1st round 8

American Electric Power Southwestern Electric

Power Co - Pirkey Power Station 2400 FM Road 3251 Hallsville TX 75650West Bottom Ash Pond None 1985 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 3/19/2009 2012 1/13/2009 Undelivered FALSE FALSE 31 188 25 FALSE 1st round 8

American Electric Power IN MI Power Co -

Rockport Power Station 2791 North US Highway 231 Rockport IN 47635 Bottom Ash Complex None 1981 FALSE TRUE FALSE FALSE FALSE TRUE TRUE 2/12/2009 2012 FALSE FALSE 137 1640 24 FALSE 1st round 6

American Electric Power IN MI Power Co -

Tanners Creek Power Station 800 AEP Drive Lawrenceburg IN 47025 Boiler Slag Pond (U-4) None 1964 FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 20 820 0 FALSE (8) height - incised 1st round 1

American Electric Power IN MI Power Co -

Tanners Creek Power Station 800 AEP Drive Lawrenceburg IN 47025 Bottom Ash Complex Significant 1953 1973 TRUE TRUE TRUE FALSE FALSE FALSE TRUE 9/15/2008 2010 9/14/2006 No FALSE FALSE 63 1645 52 FALSE (1)IN DNR rates this impoundment Low (5) plug a brand new spillway, install drain 1st round 1

American Electric Power IN MI Power Co -

Tanners Creek Power Station 800 AEP Drive Lawrenceburg IN 47025 Fly Ash Pond High 1972 2007 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 9/15/2008 2009 No FALSE FALSE 60 1076 60 FALSE (1)IN DNR rates this impoundment Low (5)
seepage upper dike 1st round 1

American Electric Power Southwestern Electric

Power Co - Welsh Plant C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 Pittsburg TX Active Bottom Ash Storage None 2000 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 3/18/2009 2012 1/13/2009 No FALSE FALSE 20 270 35 FALSE 1st round 5

American Electric Power Southwestern Electric

Power Co - Welsh Plant C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 Pittsburg TX Primary Ash Pond None 1977 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 3/18/2009 2012 1/13/2009 No FALSE FALSE 98 307 20 FALSE 1st round 5

American Electric Power Southwestern Electric

Power Co - Welsh Plant C/O Mr. Alan Wood, 1

Riverside Plaza, Columbus, OH 43215 Pittsburg TX Secondary Ash Pond None 1977 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 3/18/2009 2012 1/13/2009 No FALSE FALSE 4 37 20 FALSE 1st round 5

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606 Ash Pond 1 High 1995 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 12/2008 12/1/2008 No FALSE FALSE 717 30 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606 Ash Pond 2 High 1995 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 12/2008 12/1/2008 No FALSE FALSE 720 30 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606 Ash Pond 3 High 1995 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 12/2008 12/1/2008 No FALSE FALSE 720 30 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606 Ash Pond 4 High 1995 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 12/2008 12/1/2008 No FALSE FALSE 693 31 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606Coal Pile Retention Basin None 1978 FALSE FALSE FALSE FALSE coal TRUE TRUE FALSE FALSE FALSE 34 0 FALSE (8) height - incised 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606Cooling Tower Blowdown Pond None 1978 TRUE FALSE FALSE FALSE TRUE TRUE TRUE FALSE FALSE 7 10 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606 Evaporation 1 High 1995 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 12/2008 12/1/2008 No FALSE FALSE 823 28 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606 Low Volume Wastewater Pond None 2005 TRUE TRUE FALSE TRUE TRUE TRUE TRUE FALSE FALSE 20 30 6 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606Scrubber Pond 1 High 1995 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 12/2008 12/1/2008 No FALSE FALSE 314 10 FALSE 1st round 2

Arizona Electric Pwr Coop Inc Apache Station

Combustion Waste Disposal Facility 3525 North Highway 191 South Cochise AZ 85606Scrubber Pond 2 High 1995 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 12/2008 12/1/2008 No FALSE FALSE 446 15 FALSE (8) 0 stored in pond 1st round 2

Arizona Public Service Co Cholla Power Station 4801 Frontage Road Joseph City AZ 86032 Bottom Ash Pond High 1978 1991 TRUE TRUE TRUE TRUE other, cooling tower basin sludge, general water sump sediment, West Area Retention Pond sediment, area-wide drainage sump sediment, seepage intercept system sump sediment TRUE TRUE TRUE 5/2008 9/1/2008 No FALSE FALSE 80 2300 73 FALSE 1st round 2Arizona Public Service Co Cholla Power Station 4801 Frontage Road Joseph City AZ 86032 Fly Ash Pond High 1978 TRUE TRUE TRUE TRUE other, cooling tower basin sludge, general water sump sediment, West Area Retention Pond sediment, area-wide drainage sump sediment, seepage intercept system sump sediment TRUE TRUE TRUE 5/2008 9/1/2008 No FALSE FALSE 420 18000 80 FALSE 1st round 2 Arizona Public Service Co Cholla Power Station 4801 Frontage Road Joseph City AZ 86032Sedimentation Pond None 1976 TRUE TRUE TRUE TRUE TRUE TRUE FALSE FALSE FALSE 1 11 1 FALSE 1st round 2

Arizona Public Service Co Cholla Power Station 4801 Frontage Road Joseph City AZ 86032West Area Retention Pond None 2002 TRUE TRUE TRUE TRUE TRUE TRUE FALSE FALSE FALSE 0 5 0 FALSE (8) height - incised 1st round 2 Arizona Public Service Co Four Corners Power

Station P.O. Box 355 Station 4915 Fruitland NM 87416 Lined Ash Impoundment Significant 2003 2007 TRUE TRUE TRUE TRUE TRUE TRUE FALSE 1/2009 No FALSE FALSE 75 2399 83 FALSE 1st round 1 Arizona Public Service Co Four Corners Power

Station P.O. Box 355 Station 4915 Fruitland NM 87416 Lined Water Impoundment Significant 2003 FALSE FALSE FALSE TRUE other TRUE TRUE TRUE 1/2009 No FALSE FALSE 45 435 90 FALSE 1st round 1

Arizona Public Service Co Four Corners Power

Station P.O. Box 355 Station 4915 Fruitland NM 87416 Low Volume Waste Water Pond None 1979 TRUE TRUE FALSE TRUE other FALSE FALSE FALSE FALSE FALSE 14 137 0 FALSE (8) Height: below grade 1st round 1

Arizona Public Service Co Four Corners Power

Station P.O. Box 355 Station 4915 Fruitland NM 87416 Low Volume Waste Water System Decant Cells None 2004 TRUE TRUE FALSE TRUE other TRUE TRUE TRUE FALSE FALSE 1 4 6 FALSE 1st round 1

Arizona Public Service Co Four Corners Power

Station P.O. Box 355 Station 4915 Fruitland NM 87416 Upper Retention Sump None 1984 FALSE FALSE FALSE TRUE other FALSE FALSE FALSE FALSE FALSE 1 11 0 FALSE (8) Height: below grade 1st round 1 Associated Electric Coop Inc New Madrid Power

Station 41 St. Jude Road Marston MO 63866 Ash Pond 1 None 1972 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 6/2009 FALSE FALSE 31 570 12 FALSE 1st round 7 Associated Electric Coop Inc New Madrid Power

Station 41 St. Jude Road Marston MO 63866 Ash Pond 2 None 1994 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 6/2009 FALSE FALSE 78 1351 20 FALSE 1st round 7 Associated Electric Coop Inc New Madrid Power

Station 41 St. Jude Road Marston MO 63866 Slag Pond 1 None 1972 FALSE FALSE TRUE FALSE TRUE TRUE TRUE FALSE FALSE 62 1137 20 FALSE 1st round 7 Associated Electric Coop Inc New Madrid Power

Station 41 St. Jude Road Marston MO 63866 Slag Pond 2 None 1984 FALSE FALSE TRUE FALSE TRUE TRUE TRUE FALSE FALSE 4 14 20 FALSE 1st round 7 Associated Electric Coop Inc Thomas Hill Energy

Center Randolph County State Road F Thomas Hill MO 65244 Ash - 2 Landfill None 1998 TRUE TRUE TRUE TRUE TRUE FALSE FALSE visual inspection FALSE FALSE 44 1446 0 FALSE (8) height - incised 1st round 8 Associated Electric Coop Inc Thomas Hill Energy

Center Randolph County State Road F Thomas Hill MO 65244 Ash -3 Landfill None 2005 FALSE FALSE FALSE FALSE no CCW TRUE FALSE FALSE visual inspection FALSE FALSE 24 1050 0 FALSE (8) height - incised 1st round 8 Associated Electric Coop Inc Thomas Hill Energy

Center Randolph County State Road F Thomas Hill MO 65244Ash Pond Cell 1 - Upper None pre 1980 TRUE TRUE TRUE TRUE TRUE FALSE FALSE visual inspection FALSE FALSE 7 32 FALSE 1st round 8 Associated Electric Coop Inc Thomas Hill Energy

Center Randolph County State Road F Thomas Hill MO 65244Ash Pond Cell 2 - Middle None pre 1980 TRUE TRUE TRUE FALSE TRUE FALSE FALSE visual inspection FALSE FALSE 12 31 25 FALSE 1st round 8 Associated Electric Coop Inc Thomas Hill Energy

Center Randolph County State Road F Thomas Hill MO 65244Ash Pond Cell 3 - Lowest None 1980 FALSE FALSE FALSE FALSEwater only polishing TRUE FALSE FALSEvisual inspection FALSE FALSE 10 50 22 FALSE 1st round 8 Associated Electric Coop Inc Thomas Hill Energy

Center Randolph County State Road F Thomas Hill MO 65244Ash Pond Slag Dewatering None 1984 FALSE TRUE TRUE FALSE TRUE FALSE FALSE visual inspection FALSE FALSE 3 10 0 FALSE (8) height - incised 1st round 8

Basin Electric Power Coop Antelope Valley

Station 294 County 15 Beulah ND 58523 Decant Pond (Temporary Pond) None 1993 TRUE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 3 19 10 FALSE 1st round 8

Basin Electric Power Coop Antelope Valley

Station 294 County 15 Beulah ND 58523Spray Drier Ash Water Make-Up Pond None Jul 1, 1978 TRUE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 3 28 11 FALSE 1st round 8 Basin Electric Power Coop Laramie River Power

Station P.O Box 489 Wheatland WY 82201 Bottom Ash Pond Low 1980 FALSE TRUE TRUE FALSE TRUE TRUE TRUE 2008 12/1/2008 No FALSE FALSE 105 2111 25 FALSE 1st Round 10 Basin Electric Power Coop Laramie River Power

Station P.O Box 489 Wheatland WY 82201 Emergency Holding Pond Low 1980 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 2008 12/1/2008 No FALSE FALSE 54 916 20 FALSE 1st Round 10 Basin Electric Power Coop Leland Olds Power

Station 3901 Highway 200 A Stanton ND 58571Settling Pond #1 None late 1960's FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 27 744 35 FALSE 1st Round 7 Basin Electric Power Coop Leland Olds Power

Station 3901 Highway 200 A Stanton ND 58571Settling Pond #2 None mid 1970's FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 38 924 19 FALSE 1st Round 7

Basin Electric Power Coop Leland Olds Power

Station 3901 Highway 200 A Stanton ND 58571Settling Pond #3 None btwn 1974 and 1976 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 3 12 18 TRUE Pond #3 had an oil and grease exceedance I 5, 2000. That exceedence was due to servicing of a pump an not related to the waste management role ohe facility. 1st Round 7 City of Independence Blue Valley Power

Station 21500 East Truman Road Independence MO 64051 Bottom Ash Pond None 1978 FALSE TRUE FALSE FALSE TRUE FALSE FALSE 1988 No FALSE FALSE 9 133 13 FALSE 1st round 8 City of Independence Blue Valley Power

Station 21500 East Truman Road Independence MO 64051 North Fly Ash Pond None 1989 TRUE FALSE FALSE FALSE TRUE FALSE FALSE 1988 No FALSE FALSE 17 252 22 FALSE 1st round 8 City of Independence Blue Valley Power

Station 21500 East Truman Road Independence MO 64051South Fly Ash Pond None 1978 TRUE FALSE FALSE FALSE TRUE FALSE FALSE 1988 No FALSE FALSE 15 271 19 FALSE 1st round 8

City of Los Angeles Intermountain Power

Project 850 West Brush Wellman Road Delta UT 84624Ash Water Recycle Low 1986 FALSE FALSE TRUE FALSE leachate from bottom ash TRUE TRUE TRUE Spring 2008 No FALSE FALSE 27 590 27 FALSE 1st round 8

City of Los Angeles Intermountain Power

Project 850 West Brush Wellman Road Delta UT 84624 Bottom Ash Basin Low 1986 FALSE TRUE TRUE FALSE TRUE TRUE TRUE Spring 2008 Spring 2009 No FALSE FALSE 105 3000 36 FALSE 1st round 8

City of Los Angeles Intermountain Power

Project 850 West Brush Wellman Road Delta UT 84624 Evaporation Ponds (6 Ponds) Low 1986 FALSE FALSE FALSE TRUE TRUE TRUE TRUE Spring 2008 No FALSE FALSE 180 3225 23 FALSE 1st round 8

City of Los Angeles Intermountain Power

Project 850 West Brush Wellman Road Delta UT 84624 Land Fill RunOff None 1986 FALSE FALSE FALSE FALSE only run-off TRUE TRUE TRUE Spring 2008 No FALSE FALSE 5 30 8 FALSE 1st round 8

City of Los Angeles Intermountain Power

Project 850 West Brush Wellman Road Delta UT 84624 Settling Basin Low 1983 FALSE FALSE FALSE TRUE TRUE TRUE TRUE Spring 2008 No FALSE FALSE 14 145 7 FALSE 1st round 8

City of Los Angeles Intermountain Power

Project 850 West Brush Wellman Road Delta UT 84624Wastewater Holding Basin Low 1986 FALSE FALSE FALSE TRUE others TRUE TRUE TRUE Spring 2008 No FALSE FALSE 53 650 15 FALSE 1st round 8

City of Sikeston Sikeston Power

Station P.O. Box 370 Sikeston MO 63801 Bottom Ash Pond None 1981 FALSE TRUE FALSE TRUE TRUE TRUE TRUE FALSE FALSE 54 891 12 FALSE 1st round 4

City of Sikeston Sikeston Power

Station P.O. Box 370 Sikeston MO 63801 Fly Ash Pond None 1981 TRUE FALSE FALSE FALSE TRUE TRUE TRUE FALSE FALSE 30 560 12 FALSE 1st round 4

City of Springfield Dallman Power

Station 3100 Stevenson Drive Springfield IL 62703 Dallman Ash Pond None 1976 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 35 682 20 FALSE 1st round 6

City of Springfield Lakeside 3100 Stevenson Dr. Springfield IL 62703 Lakeside Ash Pond Low pre 1958 1988 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 2008 FALSE FALSE 35 744 20 TRUE 06/1999 seepage in the Lakeside Ash Pond in the North embankment. It

was recommended to repair the holes to stop seepage. This report was filed with IDNR. The Lakeside Ash Pond was inspected 06/2000. No deficiencies were noted. This report was also filed 1st Round 6

Cleco Power LLC Dolet Hills Power

Station 963 Power Plant Road Mansfield LA 71052 Ash Basin No. 1 None 1986 FALSE TRUE FALSE FALSE other, sluice water TRUE TRUE FALSE No FALSE FALSE 30 578 36 FALSE 1st round 8

Cleco Power LLC Dolet Hills Power

Station 963 Power Plant Road Mansfield LA 71052 Ash Basin No. 2 None 1986 FALSE TRUE FALSE FALSE other, sluice water TRUE TRUE FALSE No FALSE FALSE 31 501 30 FALSE 1st round 8

Cleco Power LLC Dolet Hills Power

Station 963 Power Plant Road Mansfield LA 71052Auxiliary Surge Pond None 1986 TRUE FALSE FALSE TRUE other, sluice water TRUE TRUE FALSE No FALSE FALSE 2 2 9 FALSE 1st round 8

Cleco Power LLC Dolet Hills Power

Station 963 Power Plant Road Mansfield LA 71052Secondary Basin None 1986 FALSE TRUE FALSE FALSE other, sluice water TRUE TRUE FALSE No FALSE FALSE 7 75 40 FALSE 1st round 8

Cleco Power LLC Dolet Hills Power

Station 963 Power Plant Road Mansfield LA 71052 Surge Pond None 1986 TRUE FALSE FALSE TRUE other, sluice water TRUE TRUE FALSE No FALSE FALSE 2 29 19 FALSE 1st round 8

Cleco Power LLC Dolet Hills Power

Station 963 Power Plant Road Mansfield LA 71052Surge Pond No. 2 None 1986 TRUE FALSE FALSE TRUE other, sluice water TRUE TRUE FALSE No FALSE FALSE 5 18 21 FALSE 1st round 8 Coleto Creek Power, LP Coleto Creek Power

Station FM Road 2987 Fannin TX 77960 Primary Ash Pond None 1980 TRUE TRUE TRUE FALSE TRUE TRUE TRUE 1/2009 FALSE FALSE 190 2700 34 FALSE 1st round 5 Coleto Creek Power, LP Coleto Creek Power

Station FM Road 2987 Fannin TX 77960Secondary Ash Pond None 1980 TRUE TRUE TRUE FALSE TRUE TRUE TRUE 1/2009 FALSE FALSE 10 300 39 FALSE 1st round 5 Consumers Energy Co Dan E Karn Generating

Plant 2742 North Weadock Highway Essexville MI 48732 Pond A None 1959 1973, 1986 TRUE TRUE FALSE FALSE other, process water FALSE FALSE FALSE 11/1/2008 Undelivered FALSE FALSE 174 4423 20 FALSE 1st Round 7

Consumers Energy Co J C Weadock

Generating Plant 2742 North Weadock Highway Essexville MI 48732 Eastern Area, embankments A-F None 1955 TRUE FALSE FALSE FALSE FALSE FALSE FALSE 2008 12/1/2008 Undelivered FALSE FALSE 277 15 FALSE 1st Round 7 Consumers Energy Co J C Weadock

Generating Plant 2742 North Weadock Highway Essexville MI 48732 Bottom Ash Pond None 1958 FALSE TRUE FALSE FALSE FALSE FALSE FALSE 2008 12/1/2008 Undelivered FALSE FALSE 15 0 FALSE 8 - Height: incision 1st Round 7 Consumers Energy Co J. R. Whiting Power

Station 4525 East Erie Road Erie MI 48157 Pond 1 None 1952 1983 FALSE TRUE FALSE FALSE FALSE FALSE FALSE 2/18/2009 Yes FALSE FALSE 8 148 19 FALSE 1st Round 7 Consumers Energy Co J. R. Whiting Power

Station 4525 East Erie Road Erie MI 48157 Pond 2 None 1952 1983 TRUE FALSE FALSE FALSE FALSE FALSE FALSE 2/18/2009 Yes FALSE FALSE 7 135 19 FALSE 1st Round 7 Consumers Energy Co J. R. Whiting Power

Station 4525 East Erie Road Erie MI 48157 Pond 6 Low 1979 TRUE FALSE FALSE FALSE TRUE TRUE FALSE 3/17/2008 2/18/2009 Yes FALSE FALSE 32 1054 27 FALSE 1st Round 7 Consumers Energy Co J. R. Whiting Power

Station 4525 East Erie Road Erie MI 48157 Ponds 3-5 None 1959 1966, 1974 TRUE FALSE FALSE FALSE FALSE FALSE FALSE 2/18/2005 2/18/2009 Yes FALSE FALSE 82 1489 19 FALSE 1st Round 7 Dayton Power & Light Co J. M. Stuart Power

Station 745 U.S. 52 Aberdeen OH 45101 Pond #10 Significant 2001 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 6/12/2008 Yes FALSE FALSE 29 930 23 FALSE 1st round 3 Dayton Power & Light Co J. M. Stuart Power

Station 745 U.S. 52 Aberdeen OH 45101 Pond #3A None +/-1977 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 50 1302 28 FALSE 1st round 3 Dayton Power & Light Co J. M. Stuart Power

Station 745 U.S. 52 Aberdeen OH 45101 Pond #5 None +/-1975 FALSE TRUE FALSE TRUE cooling tower TRUE TRUE TRUE 2009 FALSE FALSE 34 1426 42 FALSE 1st round 3 Dayton Power & Light Co J. M. Stuart Power

Station 745 U.S. 52 Aberdeen OH 45101 Pond #6 None +/-1977 FALSE FALSE FALSE FALSE runoff TRUE TRUE TRUE 2009 FALSE FALSE 37 1550 42 FALSE 1st round 3 Dayton Power & Light Co J. M. Stuart Power

Station 745 U.S. 52 Aberdeen OH 45101 Pond #7 None +/-1977 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 37 1550 42 FALSE 1st round 3 Dayton Power & Light Co J. M. Stuart Power

Station 745 U.S. 52 Aberdeen OH 45101 Pond #7A None +/-1981 FALSE FALSE FALSE FALSE polishing pond only TRUE TRUE TRUE 2009 FALSE FALSE 3 38 42 FALSE 1st round 3 Dayton Power & Light Co Killen Station 14869 U.S. 52 Manchester OH 45144 Bottom Ash Pond Low 1982 TRUE TRUE FALSE FALSE other, plant waste water TRUE TRUE TRUE 2/2009 4/1/2008 Yes FALSE FALSE 39 1903 39 FALSE 1st Round 10 Dayton Power & Light Co Killen Station 14869 U.S. 52 Manchester OH 45144 Fly Ash Pond Low 1982 TRUE TRUE FALSE FALSE other, plant waste water TRUE TRUE TRUE 2/2009 4/1/2008 Yes FALSE FALSE 191 11004 39 FALSE 1st Round 10

Detroit Edison Co Monroe Power

Station 3500 East Front Street Monroe MI 48161 Bottom Ash Basin None early 1970's FALSE TRUE FALSE FALSE FALSE TRUE TRUE visual daily 2/23/2009 No FALSE FALSE 100 620 4 FALSE 1st Round 7

Detroit Edison Co Monroe Power

Station 3500 East Front Street Monroe MI 48161 Fly Ash Basin None 1975 TRUE FALSE FALSE FALSE TRUE TRUE TRUE visual daily 2/23/2009 No 01-May-09 FALSE FALSE 410 18595 41 FALSE 1st Round 7

Dominion Bremo Bluff Power

Station 1038 Bremo Road Bremo Bluff VA 23022 North Ash Low 1983 TRUE TRUE TRUE FALSE TRUE TRUE TRUE 10/2008 FALSE FALSE 96 4300 102 FALSE 1st round 4

Dominion Bremo Bluff Power

Station 1038 Bremo Road Bremo Bluff VA 23022 West Ash None 1978-79 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 17 290 17 FALSE 1st round 4

Dominion Chesapeake Energy

Center 2701 Vepco Street Chesapeake VA 23320 Bottom Ash/Sedimenta tion Pond None 1950's 1984, 2001 TRUE TRUE TRUE FALSE TRUE TRUE TRUE 1/2009 FALSE FALSE 10 77 15 FALSE 1st round 4

Dominion Chesterfield Power

Station 500 Coxendale Road Chester VA 23831 Lower (Old) Ash Pond None 1964 1967-68 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 1/2009 FALSE FALSE 49 740 19 TRUE 2005 unusual discharge 1st round 4

Dominion Chesterfield Power

Station 500 Coxendale Road Chester VA 23831 Upper (New) Ash Pond Low 1983 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 9/2008 FALSE FALSE 112 10240 44 FALSE 1st round 4

Dominion Kincaid Power Station Rte 104 Kincaid IL 62540 Kincaid Slagfield Berm None 1967 TRUE TRUE TRUE FALSE TRUE FALSE TRUE 1/23/2009 FALSE FALSE 178 3560 35 FALSE 1st round 6

Dominion Possum Point Power

Station 19000 Possum Point Road Dumfries VA 22026 Ash Pond D Significant 1989 TRUE TRUE TRUE FALSE holds waste
water treatment waters TRUE TRUE TRUE 1/2009 FALSE FALSE 120 6400 140 FALSE 1st round 4

Dominion Possum Point Power

Station 19000 Possum Point Road Dumfries VA 22026 Ash Pond E Significant 1968 TRUE TRUE TRUE FALSE TRUE TRUE TRUE 1/2009 FALSE FALSE 32 600 40 FALSE 1st round 4

Duke Energy Corp G. G. Allen Power

Station 253 Plant Allen Road Belmont NC 28012Active Ash Pond High 1973 1982 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 12/2007 12/1/2007 No FALSE FALSE 169 5915 75 FALSE 1st round 1

Duke Energy Corp Belews Creek Steam

Station 3195 Pine Hall Road Walnut Cove NC 27052Active Ash Pond High 1974 TRUE TRUE TRUE TRUE other TRUE TRUE FALSE monthly visual 11/1/2008 Undelivered FALSE FALSE 342 12654 140 FALSE 1st round 2

Duke Energy Corp Buck Power Station 1555 Dukeville Road Spencer NC 28146 New Primary Pond High 1982 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 2/2005 2/1/2005 No FALSE FALSE 73 2645 72 FALSE 1st round 1 Duke Energy Corp Buck Power Station 1555 Dukeville Road Spencer NC 28146 Primary Pond High 1957 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 2/2005 2/1/2005 No FALSE FALSE 46 1610 70 FALSE 1st round 1

Duke Energy Corp Buck Power Station 1555 Dukeville Road Spencer NC 28146 Secondary Pond High 1957 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 2/2005 2/1/2005 No FALSE FALSE 15 510 70 FALSE 1st round 1

Duke Energy Corp Cayuga Power Station 3300 North State Route 63 Cayuga IN 47928Ash Disposal Area #1 None 1970 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 26 260 42 FALSE 1st round 6

Duke Energy Corp Cayuga Power Station 3300 North State Route 63 Cayuga IN 47928 Lined Ash Disposal Pond - Cell #1 None 2008 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 40 1400 32 FALSE 1st round 6

Duke Energy Corp Cayuga Power Station 3300 North State Route 63 Cayuga IN 47928 Primary Ash Settling Basin None 1970 FALSE FALSE FALSE FALSE other FALSE FALSE FALSE 1/2009 FALSE FALSE 15 225 55 FALSE 1st round 6

Duke Energy Corp Cayuga Power Station 3300 North State Route 63 Cayuga IN 47928Secondary Ash Settling Basin None 1970 FALSE FALSE FALSE FALSE other FALSE FALSE FALSE 1/2009 FALSE FALSE 3 36 24 FALSE 1st round 6

Duke Energy Corp Cliffside Power

Station 573 Duke Power Road Mooresboro NC 28114 Active Pond Low 1983 TRUE TRUE TRUE FALSE other FALSE FALSE TRUE 9/2006 1/13/2009 No FALSE FALSE 84 5025 120 FALSE 1st Round 9

Duke Energy Corp Cliffside Power

Station 573 Duke Power Road Mooresboro NC 28114 Retired Unit 1-4 Basin Low FALSE FALSE FALSE FALSE FALSE FALSE TRUE 9/2006 1/13/2009 No FALSE FALSE 14 38 TRUE 10/7/2005 the Cliffside Steam Station experienced a significant localized flood event. The floodwaters from the Suck Creek entered into the retired Units 1-4 ash basin, topped the top of the dam and washed away part of the basin's dike. Notifications were 1st Round 9

Duke Energy Corp Cliffside Power

Station 573 Duke Power Road Mooresboro NC 28114 Retired Unit 5 Basin Low FALSE FALSE FALSE FALSE FALSE FALSE TRUE 9/2006 1/13/2009 No FALSE FALSE 46 97 FALSE 1st Round 9

Duke Energy Corp Dan River Power

Station 900 South Edgewood Road Eden NC 27288 Primary Pond High 1980 TRUE TRUE TRUE TRUE TRUE TRUE FALSE 11/2006 FALSE FALSE 27 477 60 FALSE 1st round 1

Duke Energy Corp Dan River Power

Station 900 South Edgewood Road Eden NC 27288 Secondary Pond High 1980 TRUE TRUE TRUE TRUE TRUE TRUE FALSE 11/2006 FALSE FALSE 12 187 27 FALSE 1st round 1

Duke Energy Corp East Bend Power

Station 6293 Beaver Road Rabbit Hash KY 41005 Ash Pond None 1980 FALSE TRUE TRUE FALSE other TRUE TRUE TRUE 1/2009 4/2009 3/24/2009 Undelivered FALSE FALSE 53 1277 60 FALSE 1st round 6

Duke Energy Corp East Bend Power

Station 6293 Beaver Road Rabbit Hash KY 41005 FGD Pond East None 1980 FALSE FALSE FALSE TRUE boiler cleaning chemicals TRUE TRUE TRUE 1/2009 4/2009 FALSE FALSE 4 51 0 FALSE (8) height - incised 1st round 6

Duke Energy Corp East Bend Power

Station 6293 Beaver Road Rabbit Hash KY 41005 FGD Pond West None 1980 FALSE FALSE FALSE TRUE boiler cleaning chemicals TRUE TRUE TRUE 1/2009 4/2009 FALSE FALSE 4 45 0 FALSE (8) height - incised 1st round 6

Duke Energy Corp Edwardsport

Generating Station 15400 Villwock Road Edwardsport IN 47528 Primary Ash Pond None 1975 TRUE TRUE TRUE FALSE other TRUE TRUE FALSE 1/2009 FALSE FALSE 8 170 25 FALSE 1st round 6

Duke Energy Corp Edwardsport

Generating Station 15400 Villwock Road Edwardsport IN 47528Secondary Ash Pond None 1975 FALSE FALSE FALSE FALSE other TRUE TRUE FALSE 1/2009 FALSE FALSE 1 7 15 FALSE 1st round 6

Duke Energy Corp R. Gallagher Power

Station 30 Jackson Street New Albany IN 47150 Ash Pond A None 1970 TRUE TRUE FALSE TRUE other, process run-off TRUE FALSE FALSE 1/2009 FALSE FALSE 36 936 29 FALSE 1st round 6

Duke Energy Corp R. Gallagher Power

Station 30 Jackson Street New Albany IN 47150Secondary Ash Pond None 1970 TRUE FALSE FALSE FALSE other, process run-off TRUE FALSE FALSE 1/2009 FALSE FALSE 5 63 19 FALSE 1st round 6

Duke Energy Corp Gibson Generating

Station 1097 North 950 West Owensville IN 47665 East Ash Pond #1 None 1991 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 10/2008 FALSE FALSE 105 1733 20 FALSE 1st round 4

Duke Energy Corp Gibson Generating

Station 1097 North 950 West Owensville IN 47665 East Ash Pond #2 None 1995 TRUE TRUE TRUE TRUE TRUE TRUE FALSE 10/2008 FALSE FALSE 105 1733 20 FALSE 1st round 4

Duke Energy Corp Gibson Generating

Station 1097 North 950 West Owensville IN 47665 East Ash Pond #3 None 1999 TRUE TRUE TRUE TRUE TRUE TRUE FALSE 10/2008 FALSE FALSE 133 3325 20 FALSE 1st round 4

Duke Energy Corp Gibson Generating

Station 1097 North 950 West Owensville IN 47665 East Ash Pond Settling Basin None 1991 FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 45 743 20 FALSE 1st round 4

Duke Energy Corp Gibson Generating

Station 1097 North 950 West Owensville IN 47665 North Ash Pond None 1974 FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 25 350 20 FALSE 1st round 4

Duke Energy Corp Gibson Generating

Station 1097 North 950 West Owensville IN 47665 North Settling Basin None 1974 FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 10 150 20 FALSE 1st round 4

Duke Energy Corp W. S. Lee Power

Station Highway S-4-178 Pelzer SC 29669 Primary Active Ash Pond None pre 1974 1975 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 3/2009 FALSE FALSE 41 779 75 FALSE 1st round 5

Duke Energy Corp W. S. Lee Power

Station Highway S-4-178 Pelzer SC 29669Secondary Ash Pond None 1975 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 3/2009 FALSE FALSE 23 391 75 FALSE 1st round 5

Duke Energy Corp Marshall Steam

Station 8320 East North Carolina 150

Highway Terrell NC 28682Active Ash Pond High 1965 1985 TRUE TRUE TRUE TRUE TRUE TRUE TRUE monthly visual FALSE FALSE 153 6885 90 FALSE 1st round 1

Duke Energy Corp Miami Fort

Generating Staion 11021 Brower Road North Bend OH 45052 Ash Pond A Significant 1976 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 11/2008 mid 2009 2/9/2009 Yes FALSE FALSE 32 803 40 FALSE 1st round 3

Duke Energy Corp Miami Fort

Generating Staion 11021 Brower Road North Bend OH 45052 Ash Pond B Significant 1981 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 11/2008 mid 2009 2/9/2009 Yes FALSE FALSE 21 515 40 FALSE 1st round 3

Duke Energy Corp Riverbend Power

Station 175 Steam Plant Road Mount Holly NC 28120 Primary Pond High 1957 1979 TRUE TRUE TRUE FALSE other, water treatment FALSE FALSE FALSE 11/2004 11/1/2004 No FALSE FALSE 41 1640 80 FALSE 1st round 1

Duke Energy Corp Riverbend Power

Station 175 Steam Plant Road Mount Holly NC 28120 Secondary Pond High 1986 TRUE TRUE TRUE FALSE other, process waste water FALSE FALSE FALSE 11/2004 11/1/2004 No FALSE FALSE 28 980 70 FALSE 1st round 1

Duke Energy Corp Wabash River Power

Station 450 Bolton Road Terre Haute IN 47801 Primary Ash Pond Cell A None 1968 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 21 336 19 FALSE 1st round 4

Duke Energy Corp Wabash River Power

Station 450 Bolton Road Terre Haute IN 47801 Primary Ash Pond Cell B None 1984 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 63 478 19 FALSE 1st round 4

Duke Energy Corp Wabash River Power

Station 450 Bolton Road Terre Haute IN 47801Secondary Ash Pond None 1984 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 7 88 20 FALSE 1st round 4

Duke Energy Corp Wabash River Power

Station 450 Bolton Road Terre Haute IN 47801 South Ash Pond None 2005 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 70 1435 27 FALSE 1st round 4

Duke Energy Corp Walter C. Beckjord

Power Station 757 U.S. Route 52 New Richmond OH 45157 Ash Pond B Significant 1963 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE quarterly 4/23/2008 Yes TRUE Ohio inspection noted: earth slides on east exterior slope, erosion gullies. Small slide on south exterior slope TRUE 16 280 46 FALSE 1st round 3

Duke Energy Corp Walter C. Beckjord

Power Station 757 U.S. Route 52 New Richmond OH 45157 Ash Pond C Significant 1966 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE visual weekly 4/23/2008 Yes TRUE Ohio inspection noted: earth slide on exterior slope of south and
west embankment, earth slides on
east embankment, sinkhole TRUE 62 1400 50 TRUEApr 26, 1999 significant drop in pond elevation. Holes (8) height

greater than 50' 1st round 3

Duke Energy Corp Walter C. Beckjord

Power Station 757 U.S. Route 52 New Richmond OH 45157Ash Pond C extension Significant 1985 TRUE FALSE FALSE FALSE FALSE FALSE FALSE quarterly 4/23/2008 Yes TRUE Ohio inspection noted: gullies
near toe at west embankment TRUE 55 1300 40 FALSE 1st round 3Dynegy Midwest Generation Inc Baldwin Energy

Complex 10901 Baldwin Road PO Box

146 Baldwin IL 62217Ash Pond System None 1970 1989 TRUE TRUE TRUE TRUE other waste waters TRUE TRUE TRUE 2/2009 2010 FALSE FALSE 492 3957 55 FALSE 1st Round 10

Dynegy Midwest Generation Inc Havana Power Station 15260 North State Route 78 Havana IL 62644 East Ash Pond High 1990 1997, 2003 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 3/2009 2010 No FALSE FALSE 90 2625 40 FALSE (8) height for cell 1: 25', cell 2: 40', cell 3:38', cell 4: 40' 1st round 1 Dynegy Midwest Generation Inc Havana Power Station 15260 North State Route 78 Havana IL 62644 North Ash Pond System None 1947 TRUE TRUE TRUE FALSE other FALSE FALSE TRUE 3/2009 2010 FALSE FALSE 6 25 22 FALSE 1st round 1 Dynegy Midwest Generation Inc Hennepin Power

Station 13498 East 800 Street Hennepin IL 61327Ash Pond System (2 cells) Low 1995 2004 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 3/2009 2010 FALSE FALSE 21 563 34 FALSE 1st Round 10 Dynegy Midwest Generation Inc Vermilion Power

Station 10188 East 2150 North Oakwood IL 61858 East Ash Pond (2 cells) Low 1989 2003 TRUE TRUE TRUE FALSE other TRUE TRUE FALSE 2/2009 2010 FALSE FALSE 28 340 40 FALSE 1st round 6 Dynegy Midwest Generation Inc Vermilion Power

Station 10188 East 2150 North Oakwood IL 61858 North Ash Pond None +/-1970's TRUE TRUE TRUE FALSE other FALSE FALSE TRUE 2/2009 2010 FALSE FALSE 80 2400 40 FALSE 1st round 6 Dynegy Midwest Generation Inc Wood River Power

Station #1 Chessen Lane Alton IL 62024 East Ash Pond (2 cells) High 2006 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 2009 2010 No FALSE FALSE 38 435 33 FALSE 1st round 1

Dynegy Midwest Generation Inc Wood River Power

Station #1 Chessen Lane Alton IL 62024West Ash Pond (2 cells) Cells 2E and 3 Low 1997 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 2009 2010 FALSE FALSE 19 210 20 FALSE 1st round 1 East Kentucky Power Coop Inc Dale Power Station 1925 Ford Road Winchester KY 40391 Dale Ash Pond #2 None 1954 1999 TRUE TRUE TRUE FALSE other FALSE FALSE TRUE FALSE FALSE 8 112 20 FALSE 1st round 6

East Kentucky Power Coop Inc Dale Power Station 1925 Ford Road Winchester KY 40391 Dale Ash Pond #4 Low 1977 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE No FALSE FALSE 11 143 26 TRUE 2008 - small leak detected, taken off line, awaiting repairs to finish beforeplaced back online 1st round 6 East Kentucky Power Coop Inc H. L. Spurlock Power

Station Route 8, Box 398 Maysville KY 41056Spurlock Ash Pond Low 1976 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 2/1/2009 Undelivered FALSE FALSE 57 1085 26 FALSE 1st Round 9 Empire District Electric Co Asbury Power Station 21133 Uphill Lane Asbury MO 64832Ash Impoundment None 1970 1974, 1978 TRUE FALSE TRUE FALSE FALSE FALSE FALSE 4/1987 2/1/2006 No FALSE FALSE 92 26 FALSE 1st round 8

First Energy Generation Corp Bruce Mansfield

Power Station Off Route 168 Near Ohio River Shippingport PA 15077 Little Blue Run Dam High 1975 1996, 2006 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 10/2008 1/1/2009 Yes TRUE recommend sub surface investigation and piezometer installation, also install inclinometer TRUE 967 84300 400 TRUE several seeps -
state documented 1st round 2 First Energy Generation Corp Bruce Mansfield

Power Station Off Route 168 Near Ohio River Shippingport PA 15077 North LDS Pond (N-LDS) Significant 1975 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 3/2009 No FALSE FALSE 3 46 32 FALSE 1st round 2 First Energy Generation Corp Bruce Mansfield

Power Station Off Route 168 Near Ohio River Shippingport PA 15077South LDS Pond (S-LDS) Significant 1975 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 3/2009 No FALSE FALSE 3 42 17 FALSE 1st round 2 First Energy Generation Corp Bruce Mansfield

Power Station Off Route 168 Near Ohio River Shippingport PA 15077West HDS Pond (W-HPDS) Significant 1975 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 3/2009 No FALSE FALSE 3 45 27 FALSE 1st round 2 First Light Power Resources Mt. Tom Station 200 Northampton Street Holyoke MA 1040 Bottom Ash Basin None 2003 FALSE TRUE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 2 18 0 FALSE (8) Height: below grade 1st Round 10 First Light Power Resources Mt. Tom Station 200 Northampton Street Holyoke MA 1040 Equalization Tank None 1983 TRUE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE 610 0 14 FALSE 1st Round 10 First Light Power Resources Mt. Tom Station 200 Northampton Street Holyoke MA 1040 Special Basin None 1983 TRUE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE 1 7 0 FALSE (8) Height: below grade 1st Round 10

Georgia Power Co Bowen Power Station 317 Covered Bridge Road Cartersville GA 30120 Ash Pond Low 1968 1992, 2001 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 3/18/2009 TRUE GA consent issued FALSE 245 3676 45 TRUE 7/28/02 sink hole; 11 cubic yards of ash sediment reached creek. 9/9/08 Stack Failure. Approximately 40 tons of ash left plant property and flowed to near by residential properties and approximately 2 tons of ash reached Euharlee Creek 1st round 1

Georgia Power Co Kraft Power Station 110 Crossgate Road Port Wentworth GA 31407 Ash Pond None 1958 1963 TRUE TRUE TRUE FALSE Pyrites FALSE FALSE FALSE 1/16/2009 1st Quarter 2010 FALSE FALSE 8 41 6 FALSE 1st Round 9

Georgia Power Co McIntosh Power

Station 900 Old Augusta Road Rincon GA 31326 Ash Pond None 1982 TRUE TRUE TRUE FALSE Pyrites, other TRUE TRUE TRUE 1/16/2009 annually FALSE FALSE 27 342 36 FALSE 1st Round 9

Georgia Power Co Harllee Branch Power

Station 1100 Milledgeville Road Milledgeville GA 31061 A None 1965 TRUE TRUE TRUE FALSE Pyrites FALSE FALSE FALSE FALSE FALSE 1 14 15 FALSE 1st round 3

Georgia Power Co Harllee Branch Power

Station 1100 Milledgeville Road Milledgeville GA 31061 B Significant 1967 TRUE TRUE TRUE FALSE Pyrites TRUE TRUE TRUE 3/17/2009 2nd quarter 2009 FALSE FALSE 75 750 70 FALSE 1st round 3

Georgia Power Co Harllee Branch Power

Station 1100 Milledgeville Road Milledgeville GA 31061 C None 1971 TRUE TRUE TRUE FALSE Pyrites TRUE TRUE TRUE 1/13/2009 2nd quarter 2009 FALSE FALSE 70 1050 83 TRUE discharge of slurry 12/1/00 1st round 3

Georgia Power Co Harllee Branch Power

Station 1100 Milledgeville Road Milledgeville GA 31061 D Significant 1980 TRUE TRUE TRUE FALSE Pyrites TRUE TRUE TRUE 1/13/2009 FALSE FALSE 45 675 57 FALSE 1st round 3

Georgia Power Co Harllee Branch Power

Station 1100 Milledgeville Road Milledgeville GA 31061 E High 1982 2004 TRUE TRUE TRUE FALSE Pyrites TRUE TRUE TRUE 1/13/2009 2nd quarter 2009 1/13/2009 Undelivered TRUEAll addressed from 2008 state inspection report. No report out from 2009 inspection. FALSE 311 4665 73 FALSE 1st round 3

Georgia Power Co Scherer Power Station 10986 Highway 87 Juliette GA 31046 Ash Pond None 1980 TRUE TRUE TRUE FALSE Pyrites TRUE TRUE TRUE 3/3/2009 2nd quarter 2009 FALSE FALSE 553 15955 100 FALSE 1st round 4

Georgia Power Co Wansley Power

Station 1377 Liberty Church Road Carrolton GA 30116 Ash Pond Significant 1975 2006 TRUE TRUE TRUE TRUE Pyrites TRUE TRUE TRUE 11/12/2008 quarterly FALSE FALSE 343 16920 110 FALSE 1st round 5 Hoosier Energy R E C Inc Frank E. Ratts Power

Station 6825 North Blackburn Road Petersburg IN 47567 Bottom Ash Pond None 1970 TRUE TRUE FALSE FALSE TRUE TRUE TRUE quarterly quarterly FALSE FALSE 6 40 0 FALSE (8) height - incised 1st round 6 Hoosier Energy R E C Inc Frank E. Ratts Power

Station 6825 North Blackburn Road Petersburg IN 47567 Fly Ash Pond 1 None 1975 TRUE FALSE FALSE FALSE TRUE TRUE TRUE quarterly quarterly FALSE FALSE 10 24 FALSE 1st round 6 Hoosier Energy R E C Inc Frank E. Ratts Power

Station 6825 North Blackburn Road Petersburg IN 47567 Fly Ash Pond 2 None 1982 TRUE FALSE FALSE FALSE TRUE TRUE TRUE quarterly quarterly FALSE FALSE 16 24 FALSE 1st round 6 Hoosier Energy R E C Inc Frank E. Ratts Power

Station 6825 North Blackburn Road Petersburg IN 47567 Fly Ash Pond 3 None 1985 TRUE FALSE FALSE FALSE TRUE TRUE TRUE quarterly quarterly FALSE FALSE 25 24 FALSE 1st round 6

Hoosier Energy R E C Inc Merom Generating

Station 5500 W Old 54 Sullivan Sullivan IN 47882 All None FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 0 FALSE (2-10) No units handle wet ash - Ash handled dry. All other units are wwt or stormwater in ground 1st Indiana-Kentucky Electric Corp Clifty Creek Power

Station 1335 Clifty Hollow Road Madison IN 47250West Boiler Slag Pond Significant 1955 FALSE FALSE TRUE FALSE FALSE FALSE TRUE fall 2008 annual FALSE FALSE 58 3600 35 FALSE 1st round 1 Indianapolis Power & Light Co Harding Street Power

Station 3700 South Harding Street Indianapolis IN 46107 Pond 1 None 1958 1995, 1998 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 6/2008 FALSE FALSE 7 92 20 FALSE 1st round 4

Indianapolis Power & Light Co Harding Street Power

Station 3700 South Harding Street Indianapolis IN 46107 Pond 2 None 1968 1980 , 1992, 1995, 1998, 2001, 2006 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 6/2008 FALSE FALSE 30 505 48 FALSE 1st round 4 Indianapolis Power & Light Co Harding Street Power

Station 3700 South Harding Street Indianapolis IN 46107 Pond 3 None 1977 1995, 1998 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 6/2008 FALSE FALSE 8 8 20 FALSE 1st round 4 Indianapolis Power & Light Co Harding Street Power

Station 3700 South Harding Street Indianapolis IN 46107 Pond 4 None 1983 1995, 1998 TRUE TRUE TRUE TRUE FALSE FALSE FALSE 6/2008 FALSE FALSE 26 304 15 FALSE 1st round 4 Indianapolis Power & Light Co Harding Street Power

Station 3700 South Harding Street Indianapolis IN 46107 Ponds 2A/2B None 1992 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 6/2008 FALSE FALSE 4 43 20 FALSE 1st round 4 Kansas City Board of Public Utilities Nearman Creek

Power Station 4240 North 55th Street Kansas City KS 66104 N/A None 1980 FALSE TRUE TRUE FALSE TRUE TRUE FALSE 6/2008 08/18/2008 No FALSE FALSE 7 124 22 FALSE (2) permitted 1982 1st round 7 Kansas City Power & Light Co Iatan Power Station 20250 Highway 45 North Weston MO 64098 Ash Pond None 1980 TRUE TRUE FALSE FALSE FALSE FALSE FALSE visual weekly FALSE FALSE 89 2328 0 FALSE (8) height - incised 1st

Kentucky Utilities Co E. W. Brown Power

Station 815 Dix Dam Road Harrodsburg KY 40330 Ash Pond High 1957 1964, 1973, 1990 TRUE TRUE TRUE FALSE other, process water FALSE FALSE FALSE 1/2009 7/1/2008 Yes FALSE FALSE 126 126 FALSE (4) No/No/No for 1957 and 1964; yes/yes/no for 1973 and 1990 1st round 3

Kentucky Utilities Co E. W. Brown Power

Station 815 Dix Dam Road Harrodsburg KY 40330 Auxiliary Pond High 2008 TRUE TRUE TRUE FALSE other, process water TRUE TRUE FALSE 1/2009 6/1/2008 Yes FALSE FALSE 35 515 75 FALSE (5) minor leaks at spillwy, minor seep, repair erosion gullies 1st round 3

Kentucky Utilities Co Ghent Power Station P.O. Box 338, 9485 U.S. Highway 42 East Ghent KY 41045Ash Pond Basin 1 High 1972 1977 TRUE TRUE TRUE FALSE other TRUE FALSE FALSE 1/2009 3/1/2009 Yes FALSE FALSE 120 4339 52 FALSE (5) evaluate wave erosion at toe (NE corner); (6) no toe drain noted 1st round 3

Kentucky Utilities Co Ghent Power Station P.O. Box 338, 9485 U.S. Highway 42 East Ghent KY 41045Ash Pond Basin 2 High 1995 2003 TRUE TRUE TRUE FALSE other TRUE FALSE FALSE 1/2009 3/1/2009 Yes FALSE FALSE 146 7190 227 FALSE (5) repair erosion gullies 1st round 3

Kentucky Utilities Co Ghent Power Station P.O. Box 338, 9485 U.S. Highway 42 East Ghent KY 41045Gypsum Stack Surge/Reclaim Pond None 1995 FALSE FALSE FALSE TRUE TRUE TRUE FALSE 3/2009 FALSE FALSE 8 0 0 FALSE (8) Height: below grade 1st round 3

Kentucky Utilities Co Ghent Power Station P.O. Box 338, 9485 U.S. Highway 42 East Ghent KY 41045Gypsum Stacking Facility High 1995 FALSE FALSE FALSE TRUE TRUE FALSE FALSE 1/2009 3/1/2009 Yes FALSE FALSE 46 2758 130 FALSE (5) repair scarp, stabalize soft spots 1st round 3

Kentucky Utilities Co Ghent Power Station P.O. Box 338, 9485 U.S. Highway 42 East Ghent KY 41045Secondary Ash Treatment Basin None 1972 TRUE TRUE FALSE FALSE TRUE FALSE FALSE 3/2009 FALSE FALSE 4 0 0 FALSE (8) Height: below grade 1st round 3

Kentucky Utilities Co Green River Power

Station 811 Power Plant Drive Central City KY 42330Ash Pond Number 2 None 1949 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE 1/2009 FALSE FALSE 23 17 FALSE 1st round 6

Kentucky Utilities Co Green River Power

Station 811 Power Plant Drive Central City KY 42330 Finishing Pond Number 3 None 1949 TRUE TRUE FALSE FALSE FALSE FALSE FALSE 1/2009 FALSE FALSE 3 17 FALSE 1st round 6

Kentucky Utilities Co Green River Power

Station 811 Power Plant Drive Central City KY 42330 Former Ash Pond None 1949 TRUE TRUE TRUE FALSE other, process water FALSE FALSE FALSE 1/2009 FALSE FALSE 6 17 FALSE 1st round 6

Kentucky Utilities Co Green River Power

Station 811 Power Plant Drive Central City KY 42330 Main Ash Pond Low 1977 TRUE TRUE TRUE FALSE other TRUE FALSE FALSE 2/2009 No FALSE FALSE 37 775 54 FALSE (5) need to evaluate need for headwall or inlet protection 1st round 6

Kentucky Utilities Co Green River Power

Station 811 Power Plant Drive Central City KY 42330 Scrubber Pond Low 1975 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 2/2009 11/1/2004 No FALSE FALSE 12 150 20 FALSE (5) need to evaluate need for overflow protection 1st round 6

Kentucky Utilities Co Pineville Station Pineville KY Ash Pond None 1977 TRUE TRUE FALSE FALSE other, process water FALSE FALSE FALSE 1/2009 FALSE FALSE 7 17 FALSE 1st round 6

Kentucky Utilities Co Tyrone Power Station P.O. Box 48, 6800 Tyrone Pike Versailles KY 40383 Ash Pond Low 1977 TRUE TRUE TRUE FALSE other, process water TRUE FALSE FALSE 2/2009 No FALSE FALSE 13 16 FALSE (5) evaluate seepage and bank erosion, soil fines in flow 1st round 6

Kentucky Utilities Co Tyrone Power Station P.O. Box 48, 6800 Tyrone Pike Versailles KY 40383 Finishing Pond None est 1977 TRUE TRUE FALSE FALSE FALSE FALSE FALSE 2/2009 6/1/2005 No FALSE FALSE 1 15 FALSE (5) evaluate seepage and bank erosion, monitor seepage and check for soil fines in flow 1st round 6 Lansing Board of Water & Light Erickson Power

Station 3725 South Canal Road Lansing MI 48901 Unit 1 None 1973 TRUE TRUE FALSE FALSE TRUE TRUE FALSE 1973 FALSE FALSE 33 198 17 FALSE 1st Round 10

Louisiana Generating LLC Big Cajun 2 Power

Station 9951 Cajun 2 Road (Highway

981) New Roads LA 70760 Bottom Ash Unit None 1980 FALSE TRUE FALSE FALSE other, settled solids from clarifying river water TRUE TRUE FALSE No FALSE FALSE 66 1188 18 FALSE 1st round 5 Louisiana Generating LLC Big Cajun 2 Power

Station 9951 Cajun 2 Road (Highway

981) New Roads LA 70760 Fly Ash Unit None 1980 TRUE TRUE FALSE FALSE other, waste water TRUE TRUE FALSE No FALSE FALSE 175 1750 10 FALSE 1st round 5

Louisiana Generating LLC Big Cajun 2 Power

Station 9951 Cajun 2 Road (Highway

981) New Roads LA 70760Water Treatment Unit None 1979 FALSE FALSE FALSE FALSE other, waste water solids, ash sluice water TRUE TRUE FALSE No FALSE FALSE 32 585 18 FALSE 1st round 5 Louisville Gas & Electric Co Cane Run Power

Station 5252 Cane Run Road Louisville KY 40232 Ash Pond High 1972 1977 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE 1/2009 10/1/2008 Yes FALSE FALSE 40 868 12 FALSE 1st round 3 Louisville Gas & Electric Co Cane Run Power

Station 5252 Cane Run Road Louisville KY 40232 Basin Pond None 1976 FALSE FALSE FALSE TRUE other, process water drainage FALSE FALSE FALSE 3/2009 FALSE FALSE 2 10 FALSE 1st round 3 Louisville Gas & Electric Co Cane Run Power

Station 5252 Cane Run Road Louisville KY 40232 Clearwell Pond None 1976 1982 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 3/2009 FALSE FALSE 1 10 FALSE 1st round 3 Louisville Gas & Electric Co Cane Run Power

Station 5252 Cane Run Road Louisville KY 40232 Dead Storage Pond None 1976 1982 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 3/2009 FALSE FALSE 4 10 FALSE 1st round 3 Louisville Gas & Electric Co Cane Run Power

Station 5252 Cane Run Road Louisville KY 40232 Emergency Pond None 1977 FALSE FALSE FALSE TRUE other, process water drainage FALSE FALSE FALSE 3/2009 FALSE FALSE 2 12 FALSE 1st round 3

Louisville Gas & Electric Co Mill Creek Power

Station 14660 Dixie Highway Louisville KY 40272 Ash Pond Significant 1972 1978 TRUE TRUE TRUE TRUE other, process water FALSE FALSE FALSE 1/2009 10/1/2008 Yes FALSE FALSE 43 77 FALSE (5) major structural integrity issues, water seepage, erosion issues 1st round 2 Louisville Gas & Electric Co Mill Creek Power

Station 14660 Dixie Highway Louisville KY 40272 Clearwell Pond None 1978 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 3/2009 FALSE FALSE 2 0 0 FALSE (8) Height: below grade 1st round 2 Louisville Gas & Electric Co Mill Creek Power

Station 14660 Dixie Highway Louisville KY 40272Construction Run Off Pond None 1978 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 3/2009 FALSE FALSE 3 0 0 FALSE (8) Height: below grade 1st round 2 Louisville Gas & Electric Co Mill Creek Power

Station 14660 Dixie Highway Louisville KY 40272 Dead Storage Pond None 1978 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 3/2009 FALSE FALSE 2 0 0 FALSE (8) Height: below grade 1st round 2 Louisville Gas & Electric Co Mill Creek Power

Station 14660 Dixie Highway Louisville KY 40272 Emergency Pond None 1981 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 3/2009 FALSE FALSE 1 0 0 FALSE (8) Height: below grade 1st round 2

Louisville Gas & Electric Co Trimble County

Power Station 487 Corn Creek Road Bedford KY 40006 Ash Pond Significant 1990 TRUE TRUE TRUE TRUE other, process water TRUE TRUE FALSE 1/1/2009 No FALSE FALSE 82 4841 40 FALSE (5) trees grown on north downstream slope, repair erosion gullies, wave erosion repair 1st round 1

Lower Colorado River Authority Fayette Power Project

Power Station 6549 Power Plant Road La Grange TX 78945 Management Unit 002 None 1979 1994 TRUE TRUE TRUE FALSE other liquids TRUE TRUE TRUE monthly 1/30/2009 Yes FALSE FALSE 84 2293 57 FALSE 1st round 5

Lower Colorado River Authority Fayette Power Project

Power Station 6549 Power Plant Road La Grange TX 78945 Management Unit 009 None 1988 TRUE FALSE FALSE TRUE sludge from cleaning of reaction tank, wastewater TRUE TRUE FALSE FALSE FALSE 30 600 45 FALSE 1st round 5 MidAmerican Energy Co Louisa Power Station 8602 172nd Street Muscatine IA 52761 Louisa Surface Impoundment None 1983 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 42 242 9 FALSE 1st round 7

MidAmerican Energy Co George Neal North

Power Station P.O. Box 778 Sioux City IA 51102Surface Impoundment 1 None 1972 TRUE TRUE TRUE TRUE other FALSE FALSE FALSE FALSE FALSE 12 137 12 FALSE 1st round 7

MidAmerican Energy Co George Neal North

Power Station P.O. Box 778 Sioux City IA 51102Surface Impoundment 2 None 1972 TRUE TRUE TRUE TRUE other FALSE FALSE FALSE FALSE FALSE 27 296 11 FALSE 1st round 7

MidAmerican Energy Co George Neal North

Power Station P.O. Box 778 Sioux City IA 51102Surface Impoundment 3 None 1975 TRUE TRUE TRUE TRUE other FALSE FALSE FALSE FALSE FALSE 76 837 20 FALSE 1st round 7 MidAmerican Energy Co Walter Scott Junior

Energy Center IA North Surface Impoundment None 1978 TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE 171 2046 11 FALSE 1st round 7 MidAmerican Energy Co Walter Scott Junior

Energy Center IA South Surface Impoundment None 1979 FALSE TRUE TRUE FALSE Process Water FALSE FALSE FALSE FALSE FALSE 133 1326 7 FALSE 1st round 7 Minnkota Power Coop Inc Milton R. Young

Power Station 3401 24th Street S.W. Center ND 5853030 Year Ponds (Cell 2) None 2005 2007 TRUE FALSE TRUE TRUE TRUE TRUE TRUE 2007/2008 Undelivered FALSE FALSE 27 1252 60 FALSE 1st round 8

Minnkota Power Coop Inc Milton R. Young

Power Station 3401 24th Street S.W. Center ND 58530 Horseshoe Pit Evaporation Pond None 1990 FALSE FALSE FALSE FALSE only leachate TRUE TRUE TRUE monthly Undelivered FALSE FALSE 4 34 6 FALSE 1st round 8

Minnkota Power Coop Inc Milton R. Young

Power Station 3401 24th Street S.W. Center ND 58530 Unit 1 Alternative Bottom Ash Pond None 1986 FALSE TRUE FALSE FALSE TRUE TRUE TRUE daily 7/11/2008 Undelivered FALSE FALSE 2 25 10 FALSE 1st round 8

Mississippi Power Co Plant Jack Watson Interstate 10 and Lorraine Road Gulfport MS 39501 Ash Pond None 1968 1974, 1999 TRUE TRUE TRUE FALSE FALSE FALSE FALSE 1/2009 2/1/2009 No FALSE FALSE 102 317 30 FALSE 1st round 5

Northern Indiana Pub Serv Co R. M. Schahfer Power

Station 2723 East 1500 North Wheatfield IN 46392 FGD Landfill Stormwater Runoff Pond None 1983 FALSE FALSE FALSE FALSE other FALSE FALSE FALSE FALSE FALSE 5 12 3 FALSE 1st round 4 Northern Indiana Pub Serv Co R. M. Schahfer Power

Station 2723 East 1500 North Wheatfield IN 46392 Final Settling Basin None 1976 FALSE FALSE FALSE FALSE other FALSE FALSE FALSE FALSE FALSE 214 2200 13 FALSE 1st round 4

Northern Indiana Pub Serv Co R. M. Schahfer Power

Station 2723 East 1500 North Wheatfield IN 46392 Material Storage Runoff Basin None 1982 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 12 48 4 FALSE 1st round 4

Northern Indiana Pub Serv Co R. M. Schahfer Power

Station 2723 East 1500 North Wheatfield IN 46392 Metal Cleaning Waste Basin None 1982 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 12 48 4 TRUE 2 spills: pump failure March 2009; no details March 1998 1st round 4 Northern Indiana Pub Serv Co R. M. Schahfer Power

Station 2723 East 1500 North Wheatfield IN 46392 Recycle Basin None 1982 FALSE FALSE FALSE FALSE other FALSE FALSE FALSE FALSE FALSE 30 372 17 FALSE 1st round 4 Northern Indiana Pub Serv Co R. M. Schahfer Power

Station 2723 East 1500 North Wheatfield IN 46392Waste Disposal Area None 1982 FALSE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE 76 1165 17 FALSE 1st round 4

Northern Indiana Pub Serv Co R. M. Schahfer Power

Station 2723 East 1500 North Wheatfield IN 46392Yard Drain Stormwater Retention Pond None 1999 FALSE FALSE FALSE FALSE other FALSE FALSE FALSE FALSE FALSE 1 6 0 FALSE (8) height - incised 1st round 4 Northern States Power Co Black Dog Power

Station 1400 East Black Dog Road Burnsville MN 55337Settling Ponds 1- 4 None mid 1950's 1975 TRUE TRUE FALSE FALSE FALSE FALSE FALSE 1997 FALSE FALSE 17 218 13 FALSE 1st Round 7

Northern States Power Co Riverside Power

Station 3100 Marshall Street N.E. Minneapolis MN 55401 Triangle Pond None 1978 TRUE TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE 0 2 20 FALSE Pond dredged; no longer contains CCRs; no assessment needed. 1st Northern States Power Co Sherburne County

Power Station 13999 Industrial Boulevard Becker MN 55308 Pond No. 1 Low 1975 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 1975 6/1/2008 No FALSE FALSE 62 3099 41 FALSE 1st round 2 Northern States Power Co Sherburne County

Power Station 13999 Industrial Boulevard Becker MN 55308 Pond No. 2 Significant 1984 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 1984 6/1/2008 No FALSE FALSE 100 6198 57 TRUE 600 Gal spill May 2007 1st round 2 Northern States Power Co Sherburne County

Power Station 13999 Industrial Boulevard Becker MN 55308 Pond No. 3 Significant 2004 2008 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 6/1/2008 No FALSE FALSE 50 1860 72 FALSE 1st round 2

Northern States Power Co Sherburne County

Power Station 13999 Industrial Boulevard Becker MN 55308 Bottom Ash Pond Significant 1975 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 6/1/2008 FALSE FALSE 18 620 41 TRUE Spring 2008, the piping used to transmit the fine fraction of the bottom ash from hydraulic dredging of the bottom ash pond broke and approximately 8000 gallons of water and as was discharged over the Bottom Ash Pond embankment to the gro 1st round 2 Northern States Power Co Sherburne County

Power Station 13999 Industrial Boulevard Becker MN 55308 Recycle Basin None 1975 TRUE TRUE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 7 0 0 FALSE (8) height - incised 1st round 2

Northern States Power Co Sherburne County

Power Station 13999 Industrial Boulevard Becker MN 55308 Unit No. 3 Dry Ash Landfill Basin None 1986 TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 3 0 0 FALSE (8) height - incised 1st round 2 Ohio Valley Electric Corp Kyger Creek Power

Station 5758 State Route 7 North Cheshire OH 45620 Boiler Slag Pond Significant 1955 FALSE FALSE TRUE FALSE FALSE FALSE FALSE fall 2007 2/1/2009 Yes FALSE FALSE 35 1435 41 FALSE 1st round 3 Ohio Valley Electric Corp Kyger Creek Power

Station 5758 State Route 7 North Cheshire OH 45620South Fly Ash Pond Significant 1955 TRUE FALSE FALSE FALSE FALSE FALSE FALSE fall 2007 2/1/2009 Yes FALSE FALSE 65 2500 40 FALSE 1st round 3

PacifiCorp Dave Johnston Power

Station 1591 Tank Farm Road Casper WY 82637 1A Ash Pond None 1959 TRUE TRUE TRUE TRUE other TRUE FALSE FALSE 3/2009 FALSE FALSE 13 115 0 FALSE (8) height - incised 1st round 8PacifiCorp Dave Johnston Power Station 1591 Tank Farm Road Casper WY 82637 1A Clear Pond None 1959 TRUE TRUE TRUE TRUE other TRUE FALSE FALSE 3/2009 FALSE FALSE 2 16 0 FALSE (8) height - incised 1st round 8

PacifiCorp Dave Johnston Power

Station 1591 Tank Farm Road Casper WY 82637 1B Ash Pond None 1959 TRUE TRUE TRUE TRUE other TRUE FALSE FALSE 3/2009 FALSE FALSE 13 112 0 FALSE (8) Height: 0 Feet (sub surface) 1st round 8

PacifiCorp Dave Johnston Power

Station 1591 Tank Farm Road Casper WY 82637 1B Clear Pond None 1959 TRUE TRUE TRUE TRUE other TRUE FALSE FALSE 3/2009 FALSE FALSE 2 20 0 FALSE (8) Height: 0 Feet (sub surface) 1st round 8

PacifiCorp Dave Johnston Power

Station 1591 Tank Farm Road Casper WY 82637 4 Clear Pond None 1972 TRUE TRUE TRUE TRUE TRUE FALSE FALSE 3/2009 FALSE FALSE 6 50 13 FALSE 1st round 8

PacifiCorp Dave Johnston Power

Station 1591 Tank Farm Road Casper WY 82637 4A Ash Pond None 1972 TRUE TRUE TRUE TRUE TRUE FALSE FALSE 3/2009 FALSE FALSE 20 145 13 FALSE 1st round 8

PacifiCorp Dave Johnston Power

Station 1591 Tank Farm Road Casper WY 82637 4B Ash Pond None 1972 TRUE TRUE TRUE TRUE TRUE FALSE FALSE 3/2009 FALSE FALSE 20 145 13 FALSE 1st round 8

PacifiCorp Dave Johnston Power

Station 1591 Tank Farm Road Casper WY 82637 Blowdown Canal None 1972 TRUE TRUE TRUE TRUE TRUE FALSE FALSE 3/2009 FALSE FALSE 1 3 0 TRUE Jan 2009 - 14,400 gallons of process
water overflowed the canal (8) height -

incised 1st round 8

PacifiCorp Jim Bridger Power

Station 9 Mile Road Rock Springs WY 82942 FGD Pond #1 Significant 1979 1989 TRUE TRUE FALSE TRUE TRUE FALSE FALSE 2/2009 No FALSE FALSE 93 1340 33 TRUE Seepage on south side of pond 1st round 1

PacifiCorp Jim Bridger Power

Station 9 Mile Road Rock Springs WY 82942 FGD Pond #2 Significant 1990 2002, 2003 TRUE FALSE FALSE TRUE TRUE TRUE FALSE 2/2009 No FALSE FALSE 392 11534 42 TRUE Seepage on north side estimated at 10,000 gal/month and is pumped back into the pond 1st round 1

PacifiCorp Naughton Power

Station P.O. Box 191 Kemmerer WY 83101 FGD Pond #1 None 1981 1986, 1990, 1994 and 2005 TRUE FALSE FALSE TRUE other FALSE FALSE FALSE 2/2009 FALSE FALSE 40 1038 37 FALSE 1st round 2

PacifiCorp Naughton Power

Station P.O. Box 191 Kemmerer WY 83101 FGD Pond #2 Significant 1999 TRUE FALSE FALSE TRUE other TRUE TRUE FALSE 2/2009 9/1/2008 No FALSE FALSE 40 671 25 TRUE 2006 - leakage from pond - install a pump back system 1st round 2

PacifiCorp Naughton Power

Station P.O. Box 191 Kemmerer WY 83101 North Ash Pond Low 1973-1974 1982, 1987 and 1993-1994 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE 2/2009 8/1/2004 No FALSE FALSE 215 3370 61 TRUE 55,000 cu. Yds of fly ash was spilled outside the pond boundries 1st round 2

PacifiCorp Naughton Power

Station P.O. Box 191 Kemmerer WY 83101 South Ash Pond Low 1973-1974 1976, 1981, 1987 and 1993- 1994 TRUE TRUE FALSE FALSE other FALSE FALSE FALSE 2/2009 8/1/2004 No FALSE FALSE 206 4057 71 FALSE 1st round 2

PacifiCorp Wyodak Power

Station 48 Wyodak Road Gillette WY 82716 Ash Pond None 1977 1989 TRUE TRUE TRUE TRUE TRUE TRUE FALSE 4/2006 No FALSE FALSE 16 320 30 FALSE 1st round 8

Platte River Power Authority Rawhide Power

Station P.O. Box 411 Wellington CO 80549 North Bottom Ash Transfer Pond None 1984 FALSE TRUE TRUE FALSE other TRUE TRUE TRUE FALSE FALSE 4 37 0 FALSE (8) Height: below grade 1st

Platte River Power Authority Rawhide Power

Station P.O. Box 411 Wellington CO 80549South Bottom Ash Transfer Pond None 1984 FALSE TRUE TRUE FALSE other TRUE TRUE TRUE FALSE FALSE 4 37 0 FALSE (8) Height: below grade 1st Power South Energy Cooperative Charles R. Lowman

Power Station 4392 Carson Road Leroy AL 36548 FGD None 1979 FALSE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 35 760 12 FALSE 1st round 5 Power South Energy Cooperative Charles R. Lowman

Power Station 4392 Carson Road Leroy AL 36548 Unit 1 Ash Pond None 1969 1998 TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE 17 330 14 FALSE 1st round 5 Power South Energy Cooperative Charles R. Lowman

Power Station 4392 Carson Road Leroy AL 36548 Units 2-3 Pond None 1979 TRUE TRUE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 29 629 12 FALSE 1st round 5

PPL Generation, LLC PPL Brunner Island

Power Station Wago Road York Haven PA 17370 Ash Basin No.6 Less than Low 1981 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2008 1/1/2009 Yes FALSE FALSE 70 2600 39 FALSE 1st Round 10

PPL Generation, LLC PPL Brunner Island

Power Station Wago Road York Haven PA 17370 Equalization Pond None 1993 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2008 FALSE FALSE 1 5 11 FALSE 1st Round 10

PPL Generation, LLC PPL Brunner Island

Power Station Wago Road York Haven PA 17370 Industrial Waste Treatment Basin None 1973 FALSE FALSE FALSE FALSE other TRUE TRUE TRUE 2008 FALSE FALSE 7 20 5 FALSE 1st Round 10

PPL Generation, LLC PPL Martins Creek

Power Station 6605 Foul Rift Road Bangor PA 18013 Ash Basin 4 Significant 1989 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2008 1/1/2009 Yes FALSE FALSE 37 39 43 TRUE 2005 - Fly Ash spill (100 Million Gal) estimated 10

acres Sep 2007 - Plant

was shut down 1st round 2

PPL Generation, LLC PPL Martins Creek

Power Station 6605 Foul Rift Road Bangor PA 18013 Industrial Waste Treatment Basin None 1974 FALSE FALSE FALSE FALSE other TRUE TRUE TRUE FALSE FALSE 15 300 10 FALSE Sep 2007 - Plant was shut down 1st round 2

PPL Generation, LLC PPL Montour Power

Station 18 McMichael Road Washingtonvill e PA 17884Ash Area 3 Leachate Runoff Basin Less than Low 1980 FALSE FALSE FALSE FALSE other TRUE TRUE TRUE FALSE FALSE 2 11 10 FALSE Plant closed and demolished 2007. 1st

PPL Generation, LLC PPL Montour Power

Station 18 McMichael Road Washingtonvill e PA 17884 Ash Basin No. 1 Low 1968 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2007 1/1/2009 Yes FALSE FALSE 143 5070 40 TRUE minor seeps on the south side basin - abatement action underway of a consent order 2007 Plant closed

and demolished 2007. 1st

PPL Generation, LLC PPL Montour Power

Station 18 McMichael Road Washingtonvill e PA 17884 Detention Basin Less than Low 1968 FALSE FALSE FALSE FALSE other TRUE TRUE TRUE 2007 FALSE FALSE 21 53 8 TRUE minor seepage of west side berm 2004 Plant closed

and demolished 2007. 1st

PPL Generation, LLC PPL Montour Power

Station 18 McMichael Road Washingtonvill e PA 17884Silo Runoff Pond Less than Low 1980 TRUE FALSE FALSE FALSE TRUE TRUE TRUE FALSE FALSE 0 1 6 FALSE Plant closed and demolished 2007. 1st

PPL Generation, LLC PPL Montour Power

Station 18 McMichael Road Washingtonvill e PA 17884Stormwater Basin Less than Low 1968 FALSE FALSE FALSE FALSE other TRUE TRUE TRUE FALSE FALSE 2 13 7 FALSE Plant closed and demolished 2007. 1st

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 1 & 2 A Pond Significant 1975 TRUE FALSE FALSE TRUE now only
stormwater runoff TRUE TRUE TRUE 2009 FALSE FALSE 14 245 25 TRUE 3/18/03 spill +/- 2700 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 1 & 2 B Fly Ash Pond Less than Low 1975 2004 TRUE FALSE FALSE TRUE TRUE TRUE TRUE FALSE FALSE 10 196 25 FALSE 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 1 & 2 Bottom Ash Pond Significant 1988 FALSE TRUE TRUE FALSE temp storage TRUE TRUE TRUE 2009 FALSE FALSE 7 73 25 FALSE 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 1 & 2 C Pond Low 1978 1987 FALSE FALSE FALSE FALSE other - only
stores raw water and
storm water runoff from TRUE TRUE TRUE 2009 FALSE FALSE 21 400 14 FALSE 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 1 & 2 Stage Evaporation Ponds (STEP) High 1992 2006 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 2005 2009 FALSE FALSE 176 4370 88 TRUE 10/11/95 small spill +/- 100 gallons C Cell; 8/29/00 small spill +/- 50 gallons C Cell; 2/1/06 hole in HDPE liner C Cell +/- 2000 gallons 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 3 & 4 Bottom Ash Pond Low 1983 FALSE TRUE TRUE FALSE temp storage TRUE TRUE FALSE 2009 FALSE FALSE 8 38 14 FALSE 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 3 & 4 Effluent Holding Pond (EHP) Low 1983 TRUE TRUE TRUE TRUE TRUE TRUE TRUE 2005 2009 FALSE FALSE 367 17000 138 TRUE 12/21/99 spill; 9/28/04; 1/25/05 ground and shows up on hillside 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 3 & 4 Scrubber Drain Collection Pond Less than Low 1983 TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 6 72 0 FALSE (8) height - incised 1st round 1

PPL Montana LLC Colstrip Steam

Electric Station P.O. Box 38,Willow Avenue Colstrip MT 59323 Units 3 & 4 Scrubber Wash Tray Pond Low 1983 TRUE FALSE FALSE TRUE unit provided water to wash tray TRUE TRUE FALSE FALSE FALSE 8 85 10 FALSE (2) removed from service 1995 1st round 1 Progress Energy Carolinas Inc Asheville Power

Station 200 CP&L Drive Arden NC 28704 1964 Pond High 1964 1970, 2000, 2006 TRUE TRUE TRUE TRUE TRUE TRUE FALSE 11/2007 FALSE FALSE 45 1380 90 FALSE 1st round 1 Progress Energy Carolinas Inc Asheville Power

Station 200 CP&L Drive Arden NC 28704 1982 Pond High 1982 2006 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 11/2007 FALSE FALSE 46 1400 95 FALSE 1st round 1 Progress Energy Carolinas Inc Cape Fear Power

Station 500 CP&L Road Moncure NC 27559 1970 Pond Low 1970 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 7/2005 FALSE FALSE 50 27 FALSE 1st round 1 Progress Energy Carolinas Inc Cape Fear Power

Station 500 CP&L Road Moncure NC 27559 1978 Pond Significant 1978 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 7/2005 FALSE FALSE 43 1161 27 FALSE 1st round 1 Progress Energy Carolinas Inc Cape Fear Power

Station 500 CP&L Road Moncure NC 27559 1985 Pond Significant 1985 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 7/2005 FALSE FALSE 65 1764 28 FALSE 1st round 1 Progress Energy Carolinas Inc H. B. Robinson Power

Station 3512 Lakeside Drive Hartsville SC 29550 Pond Low 1960 1982, 2002 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 11/2008 FALSE FALSE 70 410 20 FALSE 1st Round 9 Progress Energy Carolinas Inc L. V. Sutton Power

Station 801 Sutton Steam Plant Road Wilmington NC 28401 1971 Pond Low 1971 1983 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 2008 FALSE FALSE 53 921 32 FALSE 1st Round 9 Progress Energy Carolinas Inc L. V. Sutton Power

Station 801 Sutton Steam Plant Road Wilmington NC 28401 1984 Pond Low 1984 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 2008 FALSE FALSE 82 1364 32 FALSE 1st Round 9 Progress Energy Carolinas Inc Lee Power Station 1677 Old Smithfield Road Goldsboro NC 27530 1980 Pond Low 1980 TRUE TRUE TRUE FALSE TRUE TRUE TRUE 12/2008 FALSE FALSE 143 1980 20 FALSE 1st Round 9 Progress Energy Carolinas Inc Mayo Power Station 10660 Boston Road Roxboro NC 27574 1982 Pond Significant 1982 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 6/2004 FALSE FALSE 140 4100 90 FALSE 1st round 1 Progress Energy Carolinas Inc Roxboro Power

Station 1700 Dunnaway Road Semora NC 27343 Ash Pond Significant 1973 1986 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 12/2008 12/1/2008 Yes FALSE FALSE 240 4800 70 FALSE 1st round 2 Progress Energy Carolinas Inc Roxboro Power

Station 1700 Dunnaway Road Semora NC 27343 FGD Flush Pond Significant 2008 FALSE FALSE FALSE TRUE TRUE TRUE FALSE 2008 12/1/2008 Yes FALSE Rebuild Liner TRUE 3 53 33 TRUE 2008 Pond Breach 1st round 2 Progress Energy Carolinas Inc Roxboro Power

Station 1700 Dunnaway Road Semora NC 27343 FGD Settling Pond Significant 2008 FALSE FALSE FALSE TRUE TRUE TRUE FALSE 2008 12/1/2008 Yes FALSE FALSE 17 420 32 FALSE 1st round 2

Progress Energy Carolinas Inc W. H. Weatherspoon

Power Station 491 Power Plant Road Lumberton NC 28358 1979 Pond Low 1979 2004, 2007 TRUE TRUE TRUE FALSE TRUE TRUE FALSE 2005 FALSE FALSE 55 1375 28 TRUE Breach of an internal dike 2001 1st Round 9 Salt River Proj Ag I & P Dist Coronado Power

Station 32060 U.S. Highway 191 St. Johns AZ 85936 Evaporation Pond/Dam Significant 1979 TRUE TRUE TRUE TRUE other, process water TRUE TRUE TRUE 10/2008 9/1/2008 No FALSE FALSE 330 4650 61 FALSE 1st round 2 Santee Cooper (South Carolina Pub Serv Auth) Cross Power Station 553 Cross Station Road Pinesville SC 29468 Bottom Ash 1 None 1983 FALSE TRUE TRUE FALSE TRUE TRUE TRUE quarterly FALSE FALSE 13 230 18 FALSE 1st Round 9 Santee Cooper (South Carolina Pub Serv Auth) Cross Power Station 553 Cross Station Road Pinesville SC 29468 Bottom Ash 2 None 1995 FALSE TRUE TRUE FALSE TRUE TRUE TRUE quarterly FALSE FALSE 79 1158 14 FALSE 1st Round 9 Santee Cooper (South Carolina Pub Serv Auth) Cross Power Station 553 Cross Station Road Pinesville SC 29468 Gypsum Pond None 1983 FALSE FALSE FALSE TRUE TRUE TRUE TRUE quarterly FALSE FALSE 1 6 6 FALSE 1st Round 9 Santee Cooper (South Carolina Pub Serv Auth) Dolphus M. Grainger

Power Station 1605 Marina Drive Conway SC 29526 Ash Pond 1 None 1966 1967 TRUE TRUE TRUE FALSE TRUE TRUE TRUE quarterly FALSE FALSE 43 298 7 FALSE 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Dolphus M. Grainger

Power Station 1605 Marina Drive Conway SC 29526 Ash Pond 2 None 1977 1990 TRUE TRUE TRUE FALSE TRUE TRUE TRUE quarterly FALSE FALSE 39 429 13 FALSE 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Jefferies Power

Station Powerhouse Road Moncks Corner SC 29461 Ash Pond A None 1970 TRUE TRUE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 127 982 20 FALSE 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Jefferies Power

Station Powerhouse Road Moncks Corner SC 29461 Ash Pond B None 1970 TRUE TRUE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 42 245 10 FALSE 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Winyah Power Station 661 Steam Plant Drive Georgetown SC 29440 Ash Pond A None 1975 TRUE TRUE TRUE FALSE TRUE TRUE FALSE quarterly FALSE FALSE 88 807 25 FALSE 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Winyah Power Station 661 Steam Plant Drive Georgetown SC 29440 Ash Pond B None 1975 1977 TRUE TRUE TRUE FALSE TRUE TRUE TRUE quarterly FALSE FALSE 63 537 31 FALSE 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Winyah Power Station 661 Steam Plant Drive Georgetown SC 29440 Slurry Pond 2 None 1977 FALSE FALSE FALSE TRUE TRUE TRUE FALSE quarterly FALSE FALSE 34 416 12 FALSE 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Winyah Power Station 661 Steam Plant Drive Georgetown SC 29440 South Ash Pond None 1980 TRUE TRUE TRUE FALSE TRUE TRUE FALSE quarterly FALSE FALSE 61 1129 22 FALSE 1st round 5

Santee Cooper (South Carolina Pub Serv Auth) Winyah Power Station 661 Steam Plant Drive Georgetown SC 29440 Unit 3 & 4 Slurry Pond None 1980 FALSE FALSE FALSE TRUE TRUE TRUE FALSE quarterly FALSE FALSE 100 1700 30 TRUE 2/14/08 Release of wastewater - seal failure 1st round 5 Santee Cooper (South Carolina Pub Serv Auth) Winyah Power Station 661 Steam Plant Drive Georgetown SC 29440 West Ash Pond None 1980 TRUE TRUE TRUE FALSE TRUE TRUE TRUE quarterly FALSE FALSE 62 1178 32 FALSE 1st round 5 South Carolina Electric&Gas Co Canadys Steam Power

Station Highway 61 - General Delivery Canadys SC 29433Active Ash Pond None 1989 TRUE TRUE TRUE FALSE other TRUE TRUE FALSE 2007 FALSE FALSE 95 1407 20 FALSE 1st Round 9 South Carolina Electric&Gas Co Canadys Steam Power

Station Highway 61 - General Delivery Canadys SC 29433 Inactive Ash Pond None 1974 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE 1995 FALSE FALSE 80 1000 12 FALSE 1st Round 9

Sunbury Generation LP WPS Energy Services

Sunbury Generating Station P.O. Box 517 Shamokin Dam PA 17876 Residual Waste Ash Basin No. 1 None 1949 1959 FALSE TRUE FALSE FALSE other, waste water sludge FALSE FALSE FALSE 1/1/2009 Yes FALSE FALSE 62 1139 6 FALSE 1st round 4

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572 Longterm Flyash Pond Low 1984 FALSE FALSE FALSE FALSE Ash Residual TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 12 9 FALSE 1st Round 9

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572 North Bottom Ash Low 1984 2001 FALSE TRUE FALSE FALSE TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 6 25 FALSE 1st Round 9

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572 North Economizer Ash Pond Low 1984 2001 TRUE FALSE FALSE FALSE Pyrite TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 6 25 FALSE 1st Round 9

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572 North Recycle Pond Low 2009 FALSE FALSE FALSE TRUE Ash Residual TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 3 18 FALSE 1st Round 9

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572 Settling Pond Low 2009 FALSE FALSE FALSE TRUE Ash Residual TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 1 21 FALSE 1st Round 9

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572South Bottom Ash Pond Low 1984 2001 FALSE TRUE FALSE FALSE TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 6 25 FALSE 1st Round 9

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572South Economizer Ash Pond Low 1984 2001 TRUE FALSE FALSE FALSE Pyrite TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 7 25 FALSE 1st Round 9

Tampa Electric Co Big Bend Power

Station 13031 Wyandotte Road (Big

Bend Road) Apollo Beach FL 33572South Recycle Pond Low 2009 FALSE FALSE FALSE TRUE Ash Residual TRUE TRUE FALSE monthly visual 1/1/2009 Undelivered FALSE FALSE 9 17 FALSE 1st Round 9

Tennessee Valley Authority Allen Fossil Plant 2574 Plant Road Memphis TN 38100 East Ash Disposal Significant 1967 1978 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 70 1100 20 FALSE (5)seep north of plant; also " TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspe 1st Round 11

Tennessee Valley Authority Allen Fossil Plant 2574 Plant Road Memphis TN 38100 East Ash Stilling Pond Significant 1978 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 23 180 20 FALSE (5)seep north of plant; also " TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspe 1st Round 11

Tennessee Valley Authority Bull Run Power

Station 1265 Edgemoor Road Clinton TN 37716 Bottom Ash Disposal Area 1 Significant 1967 1980 FALSE TRUE FALSE FALSEflows to fly ash pond TRUE TRUE TRUE 2009 FALSE FALSE 32 543 65 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Bull Run Power

Station 1265 Edgemoor Road Clinton TN 37716 Dry Fly Ash Disposal Area None 1982 1990 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 17 2975 84 FALSE (5)regrade top, regrade rip/rap, erosion south side active; also " TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has or 1st Round 11Tennessee Valley Authority Bull Run Power

Station 1265 Edgemoor Road Clinton TN 37716 Fly Ash Pond & Stilling Basin Area 2 Significant 1967 1976, 1981 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 49 1674 20 FALSE (5)erosion south side; also " TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspec 1st Round 11

Tennessee Valley Authority Bull Run Power

Station 1265 Edgemoor Road Clinton TN 37716Gypsum Disposal Area 2A Low 1981 2008 TRUE FALSE FALSE TRUEflows into fly ash pond TRUE TRUE TRUE 2009 FALSE FALSE 42 1700 165 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Colbert Power Station 900 Colbert Steam Plant Road Tuscumbia AL 35674 Ash Pond 4 Significant 1972 1984 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 45 1364 40 FALSE (5)joint seal RCP spillway; also " TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability i 1st Round 11

Tennessee Valley Authority Colbert Power Station 900 Colbert Steam Plant Road Tuscumbia AL 35674 Disposal Area 5 None 1983 1990 TRUE FALSE FALSE FALSE potentially ammoniated TRUE TRUE TRUE 2009 FALSE FALSE 75 5455 135 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Colbert Power Station 900 Colbert Steam Plant Road Tuscumbia AL 35674 Disposal Area 5 Basin Significant 1983 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 2009 FALSE FALSE 12 372 17 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Cumberland Fossil

Plant Cumberland City TN Ash Pond Significant 1969 1979 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2/2009 2009 FALSE FALSE 50 1240 35 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Cumberland Fossil

Plant Cumberland City TN Dry Ash Stack None 1969 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2/2009 2009 FALSE FALSE 110 7810 200 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Cumberland Fossil

Plant Cumberland City TN Gypsum Storage Area (North/South) Significant 1969 mid 1990's FALSE FALSE FALSE TRUE TRUE TRUE TRUE 2/2009 2009 FALSE FALSE 170 12397 140 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Gallatin Power

Station 1499 Steam Plant Road Gallatin TN 37066 Bottom Ash Pond A Significant 1970 1986, 1994 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 2008 2009 FALSE FALSE 269 4390 25 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Gallatin Power

Station 1499 Steam Plant Road Gallatin TN 37066 Fly Ash Pond E Significant 1970 1986, 2006 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2008 2009 FALSE FALSE 157 4401 35 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Gallatin Power

Station 1499 Steam Plant Road Gallatin TN 37066Stilling Pond B, C, D Significant 1970 1986 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2008 2009 FALSE FALSE 55 372 10 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority John Sevier Power

Station 611 Old Highway 70 Rogersville TN 37857 Bottom Ash Pond Significant 1979 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 11/2007 2009 FALSE FALSE 41 744 25 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority John Sevier Power

Station 611 Old Highway 70 Rogersville TN 37857 Dry Ash Stack None 1955 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 11/2007 2009 FALSE FALSE 84 2355 143 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Johnsonville Power

Station 1 Du Pont Road New Johnsonville TN 37134Ash Disposal Area 2 Significant 1970 1978 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 11/2007 2009 FALSE FALSE 87 2702 30 TRUE Reported release of small quantity of ceneospheres on 03/27/2004 when discharge
structure was disturbed during maintenance. (5)" TVA has

retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Kingston Power

Station 714 Swan Pond Road Harriman TN 37748 Main Ash Pond Significant 1951 1968 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 10/2008 2009 FALSE FALSE 92 8907 50 TRUE 11/07/2003 and 11/01/2006, an ash release occurred to land from slough in the Dredge Cell embankment. A release into the Emory River occurred on 12/22/2008 from the Dredge Cell embankment failure. No reports found of releases from the Main Ash Pond or S (5)" TVA has

retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11Tennessee Valley Authority Kingston Power

Station 714 Swan Pond Road Harriman TN 37748 Stilling Pond Significant 1978 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 10/2008 2009 FALSE FALSE 29 290 50 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Paradise Power

Station 13246 State Route 176, Suite

10 Drakesboro KY 42337 Fly Ash Extension Area Pond Low 1971 1997 TRUE FALSE FALSE FALSE TRUE TRUE TRUE 10/2008 2009 FALSE FALSE 203 3935 34 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Paradise Power

Station 13246 State Route 176, Suite

10 Drakesboro KY 42337Scrubber Sludge Complex Low 1986 TRUE FALSE FALSE TRUE TRUE TRUE TRUE 10/2008 2009 FALSE FALSE 255 532 270 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Paradise Power

Station 13246 State Route 176, Suite

10 Drakesboro KY 42337Slag Areas 2A & 2B Low 1967 1970 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 10/2008 2009 FALSE FALSE 27 600 24 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Shawnee Power

Station 7900 Metropolis Lake Road West Paducah KY 42086 Ash Pond Significant 1952 1971, 1979 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2/2009 2009 FALSE FALSE 180 3099 25 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Shawnee Power

Station 7900 Metropolis Lake Road West Paducah KY 42086Consolidated Waste Dry Stack None 1984 2000 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2/2009 2009 FALSE FALSE 200 20575 270 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Watts Bar Fossil Rhea County TN Ash Pond 1 Stilling Basin Significant 1974 1977 TRUE TRUE FALSE FALSE TRUE TRUE TRUE 2/2009 2009 FALSE FALSE 14 143 30 FALSE (5)" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has ordered TVA to conduct stability inspections at ALL of its Tenes 1st Round 11

Tennessee Valley Authority Widows Creek Power

Station 2800 Steamplant Road Stevenson AL 35772 Ash Pond Significant 1950 2005 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 10/2008 2009 FALSE FALSE 310 11709 115 TRUE Reported release of small quantity of ceneospheres 01/30/2008. Reported release of small quantity of ceneosperes 12/10/2004 due to intense precipitation. (5)wet area at

southern lower perimeter dike, seep in dike between stilling and pump ponds; also " TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other 1st Round 11

Tennessee Valley Authority Widows Creek Power

Station 2800 Steamplant Road Stevenson AL 35772Gypsum Stack (Wet Stacking Area) Significant 1986 1992 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 10/2008 2009 FALSE FALSE 110 10961 150 TRUE An abandoned decant weir in Pond 2B failed on 01/09/2009 (5)monitor

seepage south perimeter dike next to stilling pond; also" TVA has retained a third party consultant, Stantee, to assess each facility's CCR Units; results may be completed by Apr 2009;(6)Tennes see note under other in 6: "State of Tennessee has 1st Round 11 Tri-State G & T Assn Inc Escalante Power

Station P.O. Box 557 Prewitt NM 87045 Emergency Scrubber Pond None 1984 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 2/2009 FALSE FALSE 1 3 3 FALSE 1st round 1 Tri-State G & T Assn Inc Escalante Power

Station P.O. Box 557 Prewitt NM 87045 Evaporation Pond 1 Significant 1984 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 1/2009 No FALSE FALSE 2 14 7 FALSE 1st round 1

Tri-State G & T Assn Inc Escalante Power

Station P.O. Box 557 Prewitt NM 87045 Management Units 3 & 4 Bottom Ash Low 1984 FALSE TRUE FALSE FALSE TRUE TRUE TRUE 2/2009 No FALSE FALSE 13 96 13 FALSE 1st round 1

Vectren A. B. Brown Power

Station 211 NW Riverside Drive Evansville IN 47708 Lower Dam Significant 1978 TRUE TRUE TRUE FALSE FGD Belt wash, pyrites, boiler cleanout TRUE FALSE FALSE visual daily No FALSE FALSE 53 930 59 FALSE 1st round 1

Vectren A. B. Brown Power

Station 211 NW Riverside Drive Evansville IN 47708 Upper Dam None 2002 2007 FALSE FALSE FALSE FALSE Plant make up water TRUE TRUE FALSE visual daily No FALSE FALSE 103 2417 17 FALSE 1st round 1

Vectren F. B. Culley Power

Station 3711 Darlington Road Newburgh IN 47630 East Pond None 1973 TRUE TRUE TRUE FALSE FGD Belt Filter wash, other FALSE FALSE FALSE FALSE FALSE 7 372 0 FALSE (8) height - incised 1st round 6

Vectren F. B. Culley Power

Station 3711 Darlington Road Newburgh IN 47630 West Pond None mid 1960's TRUE TRUE TRUE FALSE FGD Belt Filter wash, other FALSE FALSE FALSE FALSE FALSE 18 620 0 FALSE (8) height - incised 1st round 6

Westar Energy Jeffrey Energy Center 25905 Jeffrey Road Saint Marys KS 66536 Bottom Ash Lake Dam Significant 1978 2000 FALSE TRUE TRUE FALSE TRUE FALSE FALSE 9/2008 FALSE FALSE 117 3515 22 FALSE 1st round 1

Westar Energy Jeffrey Energy Center 25905 Jeffrey Road Saint Marys KS 66536 Bottom Ash Pond Dam None early 1980's 2000 FALSE TRUE TRUE TRUE TRUE FALSE FALSE 9/2008 FALSE FALSE 72 550 22 FALSE 1st round 1

Westar Energy Jeffrey Energy Center 25905 Jeffrey Road Saint Marys KS 66536 Bottom Ash Settling Pond None mid 1980's FALSE TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE 53 988 22 FALSE 1st round 1 Western Farmers Elec Coop Inc Hugo Power Station Highway 70 Fort Towson OK 74735 North Bottom Ash Unit None 1982 FALSE TRUE FALSE FALSE TRUE TRUE FALSE 1/2009 3/1/2009 No FALSE FALSE 34 344 11 FALSE 1st round 8 Western Farmers Elec Coop Inc Hugo Power Station Highway 70 Fort Towson OK 74735 North Fly Ash None 1982 TRUE FALSE FALSE FALSE TRUE TRUE FALSE 1/2009 3/1/2009 No FALSE FALSE 18 332 30 FALSE 1st round 8 Western Farmers Elec Coop Inc Hugo Power Station Highway 70 Fort Towson OK 74735South Bottom Ash None 1982 FALSE TRUE FALSE FALSE TRUE TRUE FALSE 1/2009 3/1/2009 No FALSE FALSE 34 344 11 FALSE 1st round 8 Western Farmers Elec Coop Inc Hugo Power Station Highway 70 Fort Towson OK 74735South Fly Ash Unit None 1982 TRUE FALSE FALSE FALSE TRUE TRUE FALSE 1/2009 3/1/2009 No FALSE FALSE 18 332 27 FALSE 1st round 8 Big Rivers/Western Kentucky Energy Corp Reid/Green/HMP&L

Station Two 9000 Highway 2096 Robards KY 42452 Ash Pond Significant 1971 TRUE TRUE FALSE TRUE FALSE FALSE FALSE informal internal inspections 12/1/2008 Undelivered FALSE FALSE 39 FALSE 1st round 2 Indianapolis Power & Light Co Eagle Valley

Generating Station 4040 Blue Bluff Road Martinsville IN 46151 A Pond None 1949 1979, 1981, 1991 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 4/7/2009 1/30/2008 No FALSE FALSE 19 400 26 FALSE 2nd round 4 Indianapolis Power & Light Co Eagle Valley

Generating Station 4040 Blue Bluff Road Martinsville IN 46151 B Pond None 1949 1979, 1981, 1991 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 4/7/2009 1/30/2008 No FALSE FALSE 13 177 16 FALSE 2nd round 4 Indianapolis Power & Light Co Eagle Valley

Generating Station 4040 Blue Bluff Road Martinsville IN 46151 C Pond None 1949 1979, 1981, 1991 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 4/7/2009 1/30/2008 No FALSE FALSE 8 102 16 FALSE 2nd round 4

Indianapolis Power & Light Co Eagle Valley

Generating Station 4040 Blue Bluff Road Martinsville IN 46151 D Pond None 1956 1962, 1981, 2000, 2005, 2007, 2008 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 4/7/2009 1/30/2008 No TRUE 1 levee breache (1/30/2008)- State notified. 30 million gallons spill. FALSE 16 370 38 TRUE 1 levee breache (1/30/2008)- State notified. 30 million gallons spill. 2nd round 4

Indianapolis Power & Light Co Eagle Valley

Generating Station 4040 Blue Bluff Road Martinsville IN 46151 E Pond None 1956 2003, 2007, 2008 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 4/7/2009 1/30/2008 No TRUE 1 levee breache (2/14/2007)- State notified. 30 million gallons spill. FALSE 4 45 28 TRUE 1 levee breache (2/14/2007)- State notified. 30 million gallons spill. 2nd round 4 NRG Somerset Power LLC Somerset Electric

Generating Station 1606 Riverside Avenue Somerset MA 2726Coal Pile RunOff Sump None 1982 - 1984 FALSE TRUE FALSE FALSE TRUE TRUE FALSE 1984 FALSE FALSE 0 0 0 FALSE 8-Height below grade 2nd NRG Somerset Power LLC Somerset Electric

Generating Station 1606 Riverside Avenue Somerset MA 2726 Equalization Basin None 1923 - 1925 1982 - 1984 FALSE TRUE FALSE FALSE Other FALSE FALSE FALSE 1984 FALSE FALSE 0 0 0 FALSE 8-Height incised 2nd NRG Somerset Power LLC Somerset Electric

Generating Station 1606 Riverside Avenue Somerset MA 2726 North Lift Pit None 1970's 1982 - 1984 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 0 0 0 FALSE 8-Height incised 2nd NRG Somerset Power LLC Somerset Electric

Generating Station 1606 Riverside Avenue Somerset MA 2726 South Pond None 1982 - 1984 FALSE TRUE FALSE FALSE Other TRUE TRUE FALSE 1984 FALSE FALSE 0 2 0 FALSE 8-Height below grade 2nd

Tri-State G & T Assn Inc Nucla Power Station P.O. Box 698 Nucla CO Coal/Ash Settling Basin None 1997 TRUE TRUE FALSE FALSE TRUE TRUE FALSE 9/23/2008 No FALSE FALSE 0 0 1 FALSE No wet ash, ash is handled dry;
no assessment is needed. 2nd NRG Indian River Power LLC Indian River Electric

Generating Station P.O. Box 408, Power Plant Rd Millsboro DE 19966Ash Silo Area Sump System None 1979 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 0 0 4 FALSE 2nd NRG Indian River Power LLC Indian River Electric

Generating Station P.O. Box 408, Power Plant Rd Millsboro DE 19966Sedimentation Pond None 1989 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 0 0 FALSE (8) height - incised 2nd

Westar Energy Lawrence Energy

Center 1250 N. 1800 Road Lawrence KS 66044 Area 1 None 1969 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 5 71 13 FALSE 2nd round 7

Westar Energy Lawrence Energy

Center 1250 N. 1800 Road Lawrence KS 66044 Area 2 None 1969 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 10 155 13 FALSE 2nd round 7

Westar Energy Lawrence Energy

Center 1250 N. 1800 Road Lawrence KS 66044 Area 3 None 1976 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 18 273 13 FALSE 2nd round 7

Westar Energy Lawrence Energy

Center 1250 N. 1800 Road Lawrence KS 66044 Area 4 None 1976 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 14 185 13 FALSE 2nd round 7

Westar Energy Tecumseh Energy

Center 2nd & Dupont Road Tecumseh KS 66542Area 1 (NPDES Ash Pond) None Pre 1980 1980 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE FALSE FALSE 2 20 0 FALSE 8- Height Below Grade 2nd round 8

Westar Energy Tecumseh Energy

Center 2nd & Dupont Road Tecumseh KS 66542Area 2 (Clear Pond) None 1984 FALSE FALSE FALSE FALSE Other FALSE FALSE FALSE FALSE FALSE 1 12 0 FALSE 8- Height Below Grade 2nd round 8

NRG Energy Center Dover, LLC NRG - Energy Center

Dover 1280 W. North Street Dover DE 19904Waste Water Pond None 1984 TRUE TRUE TRUE FALSE Other FALSE FALSE TRUE FALSE FALSE 0 0 6 FALSE No wet ash; ash is handled dry -
no assessment is needed. 2nd NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481Air Preheater Pond None 1978 TRUE TRUE FALSE FALSE TRUE TRUE FALSE inspected weekly FALSE FALSE 1 4 0 FALSE 8- Height Below Grade 2nd NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481Coal Pile Run Off Pond None 1978 TRUE TRUE FALSE FALSE TRUE TRUE FALSE inspected weekly FALSE FALSE 24 110 0 FALSE 8- Height Below Grade 2nd

NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481 Flue Gas Desulfurization Emergency Pond (E-Pond) None 1980-1982 1993 FALSE FALSE FALSE TRUE TRUE TRUE FALSE inspected weekly FALSE FALSE 0 2 0 FALSE 8- Height Below Grade 2nd

NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481 Unit 5 Bottom Ash Overflow Basin None 1978 TRUE TRUE FALSE FALSE TRUE TRUE FALSE inspected weekly FALSE FALSE 0 0 0 FALSE 8- Height Below Grade 2nd

NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481 Unit 6 Bottom Ash Overflow Basin None 1978 TRUE TRUE FALSE FALSE TRUE TRUE FALSE inspected weekly FALSE FALSE 0 0 0 FALSE 8- Height Below Grade 2nd

NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481 Unit 7 Bottom Ash Overflow Basin None 1978 TRUE TRUE FALSE FALSE TRUE TRUE FALSE inspected weekly FALSE FALSE 0 0 0 FALSE 8- Height Below Grade 2nd

NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481 Unit 7/8 Dewatering Bin Basin None 1978 TRUE TRUE FALSE FALSE TRUE TRUE FALSE inspected weekly FALSE FALSE 0 0 0 FALSE 8- Height Below Grade 2nd

NRG Texas Power, LLC W. A. Parish Electric

Generating Station P.O. Box 98 Thompsons TX 77481 Unit 8 Bottom Ash Overflow Basin None 1978 TRUE TRUE FALSE FALSE TRUE TRUE FALSE inspected weekly FALSE FALSE 0 0 0 FALSE 8- Height Below Grade 2nd

NRG Texas Power, LLC Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846 Bottom Ash Cooling Pond None 1985 FALSE TRUE FALSE FALSE Other TRUE TRUE FALSE weekly FALSE FALSE 3 50 0 TRUE May 19, 2000: Approximately 500 gallons of
water was discharged resulting from a severe rainfall event. The pH of the discharge was 8.5 su, TSS was 88 mg/1 and Selenium was <0.010 mg/1. The discharge ultimately made its way to Lynn Creek. Event was repor8- Height Below

Grade 2nd Round 9 NRG Texas Power, LLC Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846Stormwater Pond A None 1985 FALSE FALSE FALSE FALSE Other TRUE TRUE FALSE weekly FALSE FALSE 1 14 0 FALSE 8- Height Below Grade 2nd Round 9 NRG Texas Power, LLC Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846Stormwater Pond B None 1985 FALSE FALSE FALSE FALSE Other TRUE TRUE FALSE weekly FALSE FALSE 1 14 0 FALSE 8- Height Below Grade 2nd Round 9NRG Texas Power, LLC Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846 FGD Emergency Pond E None 1985 FALSE FALSE FALSE TRUE TRUE TRUE FALSE weekly FALSE FALSE 1 31 0 FALSE 8- Height Below Grade 2nd Round 9

NRG Texas Power, LLC Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846 Dewatered Sludge Disposal Area None 1985 TRUE TRUE FALSE TRUE cooling water tower sludge and stormwater sludge TRUE TRUE FALSE weekly FALSE FALSE 4 25 24 FALSE Storage of cooling tower sludge and
stormwater sludge; no assessment is needed. 2nd Round 9 NRG Texas Power, LLC Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846 ST-9 Pump None 1985 TRUE FALSE FALSE FALSE precipitator wash water TRUE TRUE FALSE weekly FALSE FALSE 0 0 0 FALSE 8- Height Below Grade 2nd Round 9 NRG Texas Power, LLC Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846 ST-10 Pump None 1985 TRUE FALSE FALSE FALSE air preheater wash water TRUE TRUE FALSE weekly FALSE FALSE 0 1 0 FALSE 8- Height Below Grade 2nd Round 9 NRG Huntley Power, LLC Huntley Electric

Generating Station 3500 River Road Tonawanda NY 14048South Settling Pond System None unknown 1976 TRUE TRUE TRUE FALSE TRUE FALSE FALSE 4/2009 2/12/2009 Undelivered FALSE FALSE 7 48 7 FALSE 2nd Round 10

NRG Huntley Power, LLC Huntley Electric

Generating Station 3500 River Road Tonawanda NY 14048South Equalization Basin None 1983 TRUE FALSE FALSE FALSE Other TRUE FALSE FALSE 2/12/2009 Undelivered FALSE FALSE 2 6 5 FALSE 2nd Round 10

NRG Huntley Power, LLC Huntley Electric

Generating Station 3500 River Road Tonawanda NY 14048 North Equalization Basin None 1983 TRUE FALSE FALSE FALSE Other TRUE FALSE FALSE 2/12/2009 Undelivered FALSE FALSE 2 9 3 FALSE 2nd Round 10 Dayton Power & Light Co O.H. Hutchings

Station 9200 Chautauqua Road Miamisburg OH 45342 East Primary Settling Pond None 1964 TRUE TRUE FALSE FALSE TRUE TRUE FALSE 2009 FALSE FALSE 5 18 FALSE 2nd round 6 Dayton Power & Light Co O.H. Hutchings

Station 9200 Chautauqua Road Miamisburg OH 45342Secondary Settling Pond None 1964 TRUE TRUE FALSE FALSE TRUE TRUE FALSE 2009 FALSE FALSE 0 6 18 FALSE 2nd round 6 Dayton Power & Light Co O.H. Hutchings

Station 9200 Chautauqua Road Miamisburg OH 45342West Primary Settling Pond None 1964 TRUE TRUE FALSE FALSE TRUE TRUE FALSE 2009 FALSE FALSE 7 18 FALSE 2nd round 6 Big Rivers/Western Kentucky Energy Corp Coleman Generating

Station 4982 River Road Hawesville KY 42348 Ash Pond Significant 1979 TRUE TRUE FALSE FALSE TRUE TRUE FALSE 3/24/2009 4/3/2009 Yes FALSE FALSE 23 1180 30 FALSE 2nd round 3 Big Rivers/Western Kentucky Energy Corp Coleman Generating

Station 4982 River Road Hawesville KY 42348 New Ash Pond Low 2007-2008 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/24/2009 FALSE FALSE 64 2417 34 FALSE 2nd round 3 Big Rivers/Western Kentucky Energy Corp Coleman Generating

Station 4982 River Road Hawesville KY 42348 South Ash Pond Less than Low 1971 TRUE TRUE FALSE FALSE TRUE FALSE FALSE 3/24/2009 FALSE FALSE 20 15 FALSE 2nd round 3 Indianapolis Power & Light Co Petersburg

Generating Station P.O. Box 436 Petersburg IN 47567 Pond A - Active None 1967 1978 TRUE TRUE TRUE TRUE Other TRUE TRUE FALSE 6/26/2008 FALSE FALSE 67 930 6 FALSE 2nd round 4 Indianapolis Power & Light Co Petersburg

Generating Station P.O. Box 436 Petersburg IN 47567 Pond A - Discharge None 1967 1978 TRUE TRUE TRUE TRUE Other TRUE TRUE FALSE 6/26/2008 FALSE FALSE 5 108 22 FALSE 2nd round 4 Indianapolis Power & Light Co Petersburg

Generating Station P.O. Box 436 Petersburg IN 47567 Pond B None 1986 1999 TRUE TRUE TRUE TRUE Other TRUE TRUE FALSE 6/26/2008 FALSE FALSE 35 1240 37 FALSE 2nd round 4 Indianapolis Power & Light Co Petersburg

Generating Station P.O. Box 436 Petersburg IN 47567 Pond C None 1986 1999 TRUE TRUE TRUE TRUE Other TRUE TRUE FALSE 6/26/2008 FALSE FALSE 30 1054 37 FALSE 2nd round 4

Kansas City Power & Light Co Hawthorn Generating

Station 8700 E. Front Street Kansas City MO 64120Scrubber Waste Settling Pond None 2006 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 1 2 0 FALSE 8- height unit is incised 2nd Kansas City Power & Light Co Montrose Generating

Station 400 SW Hwy P Clinton MO 64735Ash Settling Pond None 1958 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 4 13 6 FALSE 2nd Round 9 Kansas City Power & Light Co LaCygne Generating

Station 25166 E. 2200 Road LaCygne KS 66040 Bottom Ash Settling Pond None 1977 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 2 12 12 FALSE 2nd round 7

Kansas City Power & Light Co LaCygne Generating

Station 25166 E. 2200 Road LaCygne KS 66040Scrubber Sludge Ponds None 1971 1979 TRUE FALSE FALSE TRUE TRUE TRUE TRUE Spring 2009 FALSE FALSE 483 9298 45 TRUE July 2007, Sept 2007, and May 2009- Due to unusual rainfall events 2nd round 7 Kansas City Power & Light Co Sibley Generating

Station 33200 E. Johnson Road Sibley MO 64088 Fly Ash Settling Pond None 1979 TRUE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE 15 224 18 FALSE 2nd round 7 Kansas City Power & Light Co Sibley Generating

Station 33200 E. Johnson Road Sibley MO 64088Slag Settling Pond None 1986 FALSE FALSE FALSE FALSE Other TRUE TRUE FALSE FALSE FALSE 1 0 0 FALSE 8- Height incised unit 2nd round 7 Empire District Electric Co Riverton Power

Station 7240 SE HWY 66 Riverton KS 66770 Landfill Unit None 1951 1985, 2000 TRUE TRUE FALSE FALSE FALSE FALSE FALSE 3/31/2009 5/9/2008 No FALSE FALSE 28 992 19 FALSE 2nd round 7 South Carolina Electric&Gas Co Wateree Generating

Station 142 Wateree Station Road Eastover SC 29044 Ash Pond 1 None Early 1970's TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 1994 FALSE FALSE 80 1200 24 FALSE 2nd round 5 South Carolina Electric&Gas Co Wateree Generating

Station 142 Wateree Station Road Eastover SC 29044 Ash Pond 2 None Early 1970's TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 1994 FALSE FALSE 80 1200 24 FALSE 2nd round 5

Tri-State G & T Assn Inc Craig Power Station P.O. Box 1307 Craig CO 81626Concentrator Decant Basin #1 None 1978 FALSE TRUE FALSE TRUE TRUE TRUE FALSE 9/30/2008 FALSE FALSE 0 1 1 FALSE No wet ash, ash is handled dry;
no assessment is needed. 2nd

Tri-State G & T Assn Inc Craig Power Station P.O. Box 1307 Craig CO 81626Concentrator Decant Basin #2 None 1978 FALSE TRUE FALSE TRUE TRUE TRUE FALSE 9/30/2008 FALSE FALSE 0 1 1 FALSE No wet ash, ash is handled dry;
no assessment is needed. 2nd

NRG Dunkirk Dunkirk Electric

Generating Station 106 Point Drive North Dunkirk NY 14048Settling Pond System None Unknown 1987 TRUE TRUE FALSE FALSE TRUE TRUE FALSE 03/25/2009 Undelivered FALSE FALSE 2 12 5 FALSE This is a polishing pond;
no assessment is needed. 2nd

NRG Dunkirk Dunkirk Electric

Generating Station 106 Point Drive North Dunkirk NY 14048 Northwest Pump House None 1986 TRUE FALSE FALSE FALSE Other TRUE TRUE FALSE 03/25/2009 Undelivered FALSE FALSE 0 0 0 FALSE 8- Height below grade 2nd

NRG Dunkirk Dunkirk Electric

Generating Station 106 Point Drive North Dunkirk NY 14048 Equalization Basin None 1986 TRUE FALSE FALSE FALSE Other TRUE TRUE FALSE 03/25/2009 Undelivered FALSE FALSE 0 2 0 FALSE 8- Height below grade 2nd MidAmerican Energy Co Riverside Generating

Station 6001 State Road Bettendorf IA 52722 North Surface Impoundment None 1979 TRUE TRUE TRUE TRUE Other FALSE FALSE FALSE FALSE FALSE 14 84 12 FALSE 2nd round 7

MidAmerican Energy Co Riverside Generating

Station 6001 State Road Bettendorf IA 52722South Surface Impoundment None 1967 1970, 1976 TRUE TRUE TRUE TRUE Other FALSE FALSE FALSE FALSE FALSE 12 140 15 TRUE April 14, 2002- Caused by Mississippi River flooding, fixed using drilled grout 2nd round 7

Alliant Energy Interstate Power &

Light Co - Burlington Generating Station 4282 Sullivan Slough Road Burlington IA 52601 Ash Seal Pond None 1968 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/4/2009 FALSE FALSE 4 68 15 FALSE 2nd round 7

Alliant Energy Interstate Power &

Light Co - Burlington Generating Station 4282 Sullivan Slough Road Burlington IA 52601 Economizer Ash Pond None 1986 1990, 1992 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/4/2009 FALSE FALSE 11 166 10 FALSE 2nd round 7

Alliant Energy Interstate Power &

Light Co - Burlington Generating Station 4282 Sullivan Slough Road Burlington IA 52601 Lower Ash Pond None 1971 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/4/2009 FALSE FALSE 23 114 3 FALSE 2nd round 7

Alliant Energy Interstate Power &

Light Co - Burlington Generating Station 4282 Sullivan Slough Road Burlington IA 52601 Main Ash Pond None 1980 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/4/2009 FALSE FALSE 17 85 5 FALSE 2nd round 7

Alliant Energy Interstate Power &

Light Co - Burlington Generating Station 4282 Sullivan Slough Road Burlington IA 52601 Upper Ash Pond None 1971 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/4/2009 FALSE FALSE 13 133 5 FALSE 2nd round 7

Alliant Energy Interstate Power &

Light Co - M.L. Kapp Generating Station 2001 Beaver Channel Parkway Clinton IA 52732 Emergency Ash Primary Settling Pond None 1965 2000 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/13/2009 FALSE FALSE 1 3 2 FALSE 2nd round 8

Alliant Energy Interstate Power &

Light Co - M.L. Kapp Generating Station 2001 Beaver Channel Parkway Clinton IA 52732 Emergency Ash Secondary Settling Pond None 1965 2000 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/13/2009 FALSE FALSE 1 2 10 TRUE 3/13/2009, IPL reported to the Iowa DNR an unpermitted release of water from this pond at a location which sealed the pond from a previous discharge channel. This water leakage

was immediately repaired on 3/13/2009. 2nd round 8

Alliant Energy Interstate Power &

Light Co - M.L. Kapp Generating Station 2001 Beaver Channel Parkway Clinton IA 52732 Main Ash Primary Settling Pond None 1965 2000 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/13/2009 FALSE FALSE 7 4 25 FALSE 2nd round 8

Alliant Energy Interstate Power &

Light Co - M.L. Kapp Generating Station 2001 Beaver Channel Parkway Clinton IA 52732 Main Ash Secondary Settling Pond None 1965 2000 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/13/2009 FALSE FALSE 2 1 10 FALSE 2nd round 8

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #1 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 0 4 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #2 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 1 8 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #3 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 1 7 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #4 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 1 8 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #5 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 1 12 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #6 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 1 14 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #7 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 0 1 5 FALSE Minimal amounts of ash; this is a finishing pond -
no assessment is needed. 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404Ash Pond #8 - Plant Drains None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 0 0 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404Ash Pond #9 - Dumper Building None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 0 1 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Ash Pond #10 None 1965 (estimated) TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/6/2009 FALSE FALSE 0 1 0 FALSE (8) height - incised 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404Coal Pile Runoff Pond None 2009 FALSE FALSE FALSE FALSE Other (Coal fines) TRUE TRUE FALSE 3/6/2009 FALSE FALSE 1 4 4 FALSE No ash is stored in this pond; it is used for coal pile runoff. 2nd

Alliant Energy Interstate Power &

Light Co - Prairie Creek Generating Station 3300 C Street SW Cedar Rapids IA 52404 Final Coal Pile Runoff Pond None 1965 (estimated) FALSE FALSE FALSE FALSE Other (Coal fines) TRUE TRUE FALSE 3/6/2009 FALSE FALSE 0 3 3 FALSE No ash is stored in this pond; it is used for coal pile runoff. 2nd

Alliant Energy WI Power & Light Co -

Rock River Generating 827 W.B.R. Townline Road Beloit WI 53511 Slag Pond None 1978 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 3/31/2009 FALSE FALSE 3 29 5 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Rock River Generating 827 W.B.R. Townline Road Beloit WI 53511 Final WPDES Pond None 1978 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 3/31/2009 FALSE FALSE 4 29 10 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Rock River Generating 827 W.B.R. Townline Road Beloit WI 53511 WPDES Pond 1 None 1978 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 3/31/2009 FALSE FALSE 2 17 16 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Rock River Generating 827 W.B.R. Townline Road Beloit WI 53511 WPDES Pond 2 None 1978 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 3/31/2009 FALSE FALSE 1 14 16 FALSE 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Dubuque Generating Station 920 Kerper Blvd. Dubuque IA 52001 Ash Channel None 1954 1964, 2000 FALSE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/12/2009 FALSE FALSE 0 10 0 FALSE 8- height below grade 2nd

Alliant Energy Interstate Power &

Light Co - Ottumwa Generating Station 20775 Power Plant Road Ottumwa IA 52501 Main Ash Pond None 1981 TRUE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/5/2009 FALSE FALSE 18 229 25 FALSE 2nd round 7

Alliant Energy Interstate Power &

Light Co - Ottumwa Generating Station 20775 Power Plant Road Ottumwa IA 52501Zero Liquid Discharge Pond None 1981 TRUE FALSE FALSE FALSE Other TRUE TRUE FALSE 3/5/2009 FALSE FALSE 17 319 25 FALSE 2nd round 7

Alliant Energy Interstate Power &

Light Co - OttumaMidland CCR Landfill 200 First Street SE Cedar Rapids IA 52406 Monofill Leachate Retention Pond None 1995 FALSE FALSE FALSE FALSE Other TRUE TRUE FALSE 3/5/2009 FALSE FALSE 0 1 10 FALSE No ash is stored in this pond; it is used for storage of leachate from monofill landfill. 2nd

Alliant Energy Interstate Power &

Light Co - OttumaMidland CCR Landfill 200 First Street SE Cedar Rapids IA 52406 Monofill Storm Water Retention Pond None 1995 FALSE FALSE FALSE FALSE Other TRUE TRUE FALSE 3/5/2009 FALSE FALSE 2 18 17 FALSE Contains minimal amount of ash from truck unloading and
stormwater runoff; no
assessment needed. 2nd

Alliant Energy Interstate Power &

Light Co - Sutherland Generating Station 3001 W. Main Street, P.O. Box

537 Marshalltown IA 50158 Main Ash Settling Pond None 1955 2006 TRUE TRUE TRUE FALSE Other TRUE TRUE FALSE 3/19/2009 FALSE FALSE 6 52 7 FALSE No longer used for ash storage; minimal amounts of ash -
no assessment is needed. 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Sutherland Generating Station 3001 W. Main Street, P.O. Box

537 Marshalltown IA 50158 Unit 1 & 2 Initial Settling Pond None 1955 2006 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 3/19/2009 FALSE FALSE 0 2 7 FALSE Minimal amounts of ash; this is a settling pond - no assessment is needed. 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Sutherland Generating Station 3001 W. Main Street, P.O. Box

537 Marshalltown IA 50158 Unit 3 Inititial Settling Pond None 1961 2006 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 3/19/2009 FALSE FALSE 0 1 7 FALSE Minimal amounts of ash; this is a settling pond - no assessment is needed. 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Sixth Street Generating Station 509 6th Street NE Cedar Rapids IA 52401 Ash Pond 1 None 1930's (estimate) TRUE TRUE FALSE FALSE Other FALSE FALSE FALSE 3/6/2009 FALSE FALSE 0 7 15 FALSE 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Sixth Street Generating Station 509 6th Street NE Cedar Rapids IA 52401 Ash Pond 2 None 1930's (estimate) TRUE TRUE FALSE FALSE Other FALSE FALSE FALSE 3/6/2009 FALSE FALSE 1 7 10 FALSE 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Sixth Street Generating Station 509 6th Street NE Cedar Rapids IA 52401 Ash Pond 3 None 1930's (estimate) TRUE TRUE FALSE FALSE Other FALSE FALSE FALSE 3/6/2009 FALSE FALSE 4 40 10 FALSE 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Sixth Street Generating Station 509 6th Street NE Cedar Rapids IA 52401 Ash Pond 4 None 1930's (estimate) TRUE TRUE FALSE FALSE Other FALSE FALSE FALSE 3/6/2009 FALSE FALSE 3 32 15 FALSE 2nd Round 10

Alliant Energy Interstate Power &

Light Co - Fox Lake Generating Station 844 125th Street Sherburn MN 56171 Ash Pond None 1950 TRUE TRUE FALSE FALSE Other FALSE FALSE FALSE 3/20/2009 FALSE FALSE 2 15 5 FALSE Facility has not burned coal since 1998; contains ash transport water, boiler water wash, air heater wash and other
wastewaters. No assessment needed. 2nd

Alliant Energy WI Power & Light Co -

Nelson Dewey Generating Station 11999 County Hwy V V Cassville WI 53806 Slag Pond None 1959 1976, 1996 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 3/3/2009 FALSE FALSE 4 20 10 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Nelson Dewey Generating Station 11999 County Hwy V V Cassville WI 53806 WPDES Pond None 1976 1999 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 3/3/2009 FALSE FALSE 5 26 10 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Edgewater Generating Station 3739 Lakeshore Drive Sheboygan WI 53081 A Ponds (Two) None 1977 TRUE FALSE FALSE FALSE Other TRUE TRUE FALSE 4/27/2009 FALSE FALSE 4 44 19 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Edgewater Generating Station 3739 Lakeshore Drive Sheboygan WI 53081 B Pond None 1977 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 4/27/2009 FALSE FALSE 2 19 18 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Edgewater Generating Station 3739 Lakeshore Drive Sheboygan WI 53081 C Pond None 1969 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 4/27/2009 FALSE FALSE 1 3 6 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Edgewater Generating Station 3739 Lakeshore Drive Sheboygan WI 53081 F Pond None 1969 1977 TRUE FALSE TRUE FALSE Other TRUE TRUE FALSE 4/27/2009 FALSE FALSE 1 9 10 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Edgewater Generating Station 3739 Lakeshore Drive Sheboygan WI 53081 I43 Coal Combustion landfill Contact Pond None 1985 FALSE FALSE FALSE FALSE Other TRUE TRUE FALSE 4/27/2009 FALSE FALSE 1 8 5 FALSE 2nd Round 10

Alliant Energy WI Power & Light Co -

Edgewater Generating Station 3739 Lakeshore Drive Sheboygan WI 53081 Slag Pond None 1985 FALSE FALSE TRUE FALSE Other TRUE TRUE FALSE 4/27/2009 FALSE FALSE 2 10 18 FALSE 2nd Round 10

Xcel Energy NSP-W Bay Front

Plant C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Ashland WI Polishing Pond None 1976 FALSE FALSE TRUE FALSE TRUE FALSE FALSE FALSE FALSE 0 3 8 FALSE 2nd Round 10

Xcel Energy NSP-W Bay Front

Plant C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Ashland WI Surge Basin None 1976 FALSE FALSE TRUE FALSE TRUE FALSE FALSE FALSE FALSE 0 1 10 FALSE 2nd Round 10

Xcel Energy NSP-M Minnesota

Valley Plant C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Granite Falls MN Pond 4 None 1975 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 9 15 FALSE Inactive; plant retired. Ash removed from pond. No
assessment needed. 2nd

Xcel Energy NSP-M Minnesota

Valley Plant C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Granite Falls MN Pond 3 None 1975 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 9 15 FALSE Inactive; plant retired. Ash removed from pond. No
assessment needed. 2nd

Xcel Energy NSP-M Minnesota

Valley Plant C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Granite Falls MN Pond 2 None Early 1950's TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 9 15 FALSE Inactive; plant retired. Ash removed from pond. No
assessment needed. 2nd

Xcel Energy NSP-M Minnesota

Valley Plant C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Granite Falls MN Pond 1 None Early 1950's TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 9 15 FALSE Inactive, plant retired. Ash removed from pond. No
assessment needed. 2ndXcel Energy PSCo Arapahoe Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO Ash Pump Pond None 1950 FALSE FALSE FALSE FALSE Other FALSE FALSE FALSE FALSE FALSE 0 4 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Arapahoe

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO Discharge Pond None 1965 FALSE TRUE FALSE FALSE Other FALSE FALSE FALSE FALSE FALSE 1 7 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Arapahoe

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO Emergency Pond None 1965 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 2 12 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Arapahoe

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO South Ash Pond None 1965 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 14 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Arapahoe

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO South Storm Water/Process Water Pond None 1965 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 14 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Arapahoe

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO North Storm Water/Process Water Pond None 1965 FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 1 8 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Cameo Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Grand Junction CO Ash Silo Storm Water Retention Pond None About 1956 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 0 1 12 FALSE Not an ash storage unit; contains small amount of ash from ash silo washdown and
stormwater runoff. No assessment is needed. 2nd

Xcel Energy PSCo Cameo Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Grand Junction CO Process Water Retention Pond None About 1956 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE 0 2 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Cherokee

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO East Polishing Pond None 1979-1980 FALSE FALSE FALSE FALSE Other FALSE FALSE FALSE FALSE FALSE 1 16 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Cherokee

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO West Polishing Pond None 1979-1980 FALSE FALSE FALSE FALSE Other FALSE FALSE FALSE FALSE FALSE 1 16 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Cherokee

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO Emergency Spill Pond None 1979-1980 FALSE FALSE FALSE FALSE Other FALSE FALSE FALSE FALSE FALSE 0 5 8 FALSE Not an ash storage unit. Contains water from lift station overflow, coal pile runoff, and
stormwater runoff. No assessment is needed. 2nd

Xcel Energy PSCo Cherokee

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO East Ash Pond None 1957 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 0 8 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Cherokee

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO Center Ash Pond None 1957 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 1 10 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Cherokee

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Denver CO West Ash Pond None 1957 TRUE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE 0 8 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Comanche

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Pueblo CO Ash Disposal Facility (ADF) Stormwater Retention Pond None 1987 TRUE TRUE FALSE TRUE Other TRUE TRUE FALSE FALSE FALSE 1 8 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Comanche

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Pueblo CO Polishing Pond (#4) None 1972 FALSE TRUE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 2 12 0 TRUE April 9, 2007- between 2,000- 3,000 gallons spilled from a broken pipe 8- height below

grade 2nd

Xcel Energy PSCo Comanche

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Pueblo CO Ash Pond #3 None 1972 FALSE TRUE FALSE FALSE TRUE TRUE FALSE FALSE FALSE 2 12 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Comanche

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Pueblo CO Ash Pond #2 None 1972 FALSE FALSE FALSE TRUE Other TRUE TRUE FALSE FALSE FALSE 2 12 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Comanche

Station C/O Mr. Terry Coss, 414

Nicollet Mall, Minneapolis, MN 55401 Pueblo CO Ash Pond #1 None 1972 FALSE FALSE FALSE TRUE Other TRUE TRUE FALSE FALSE FALSE 2 12 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Hayden Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Hayden CO Ash Disposal Facility (ADF) Contact Storm Water Pond None 1983 TRUE TRUE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 1 4 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Hayden Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Hayden CO Common Wet Ash Settling Basin None 1992 TRUE TRUE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 0 0 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Hayden Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Hayden CO Fly Ash Decant Basin None 1992 TRUE TRUE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 0 0 0 FALSE 8- height below grade 2nd

Xcel Energy PSCo Hayden Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Hayden CO Intermediate Quality Pond Low 1975 TRUE TRUE FALSE TRUE TRUE TRUE FALSE No FALSE Crest grading, vegetation and rodent control TRUE 20 274 22 FALSE This is a finishing pond, little or no ash is stored. No assessment is needed. 2nd

Xcel Energy PSCo Hayden Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Hayden CO High Quality Pond Low 1975 TRUE TRUE FALSE TRUE TRUE TRUE FALSE No FALSE Crest grading, vegetation and rodent control TRUE 4 40 15 FALSE This is a finishing pond, little or no ash is stored. No assessment is needed. 2nd

Xcel Energy PSCo Hayden Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Hayden CO High Quality Skimmer Pond Low 1975 TRUE TRUE FALSE TRUE TRUE TRUE TRUE No FALSE Crest grading, vegetation and rodent control TRUE 1 6 19 FALSE This is a finishing pond, little or no ash is stored. No assessment is needed. 2nd

Xcel Energy PSCo Pawnee Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Brush CO Ash Disposal Facility (ADF) None Late 1970's TRUE TRUE FALSE FALSE other TRUE FALSE FALSE FALSE FALSE 34 1349 0 FALSE 8 - height below grade 2nd

Xcel Energy PSCo Pawnee Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Brush CO Evaporative Pond C Low 1980 FALSE TRUE FALSE FALSE TRUE FALSE FALSE 12/2008 Yes TRUE Dec 2008- Liner damage, road erosion , no pond gage rods TRUE 11 96 13 FALSE Unit contains no CCR; facility uses dry ash handling system. No assessment is needed. 2nd

Xcel Energy PSCo Pawnee Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Brush CO Evaporative Pond B Low 1980 FALSE TRUE FALSE FALSE TRUE FALSE FALSE 12/2008 Yes TRUE Dec 2008- Road erosion, no pond gage rods TRUE 15 138 13 FALSE Unit contains no CCR; facility uses dry ash handling system. No assessment is needed. 2nd

Xcel Energy PSCo Pawnee Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Brush CO Intermediate Quality (IQ) Water Pond Low 1980 FALSE TRUE FALSE FALSE TRUE FALSE FALSE FALSE FALSE 4 48 21 FALSE Unit contains no CCR; facility uses dry ash handling system. No assessment is needed. 2nd

Xcel Energy PSCo Pawnee Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Brush CO Ash Water Recovery Pond None 1980 FALSE TRUE FALSE FALSE TRUE FALSE FALSE FALSE FALSE 1 5 0 FALSE 8 - height below grade 2nd

Xcel Energy PSCo Pawnee Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Brush CO Bottom Ash Disposal Pond None 1980 FALSE TRUE FALSE FALSE TRUE FALSE FALSE FALSE FALSE 13 250 10 FALSE Unit contains no CCR; facility uses dry ash handling system. No assessment is needed. 2nd

Xcel Energy PSCo Pawnee Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Brush CO New Bottom Ash Water Recovery Pond None 2005 FALSE TRUE FALSE FALSE TRUE FALSE FALSE FALSE FALSE 6 52 16 FALSE Unit contains no CCR; facility uses dry ash handling system. No assessment is needed. 2nd

Xcel Energy PSCo Valmont Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Boulder CO Coal Pile Stormwater Runoff Pond None 1993 TRUE FALSE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 0 0 0 FALSE 8 - height below grade 2nd

Xcel Energy PSCo Valmont Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Boulder CO East Ash Settling Pond None 1964 TRUE TRUE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 1 16 0 FALSE 8 - height below grade 2nd

Xcel Energy PSCo Valmont Station C/O Mr. Terry Coss, 414 Nicollet Mall, Minneapolis, MN 55401 Boulder CO West Ash Settling Pond None 1964 TRUE TRUE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 1 16 0 TRUE Feb 14, 2008 - 25 cu yd spill of bottom ash slurry 8 - height

below grade 2nd

Cleco Power LLC Rodemacher Power

Station -Renamed Brame Energy Center 275 Rodemacher Road Lena LA 71447 Bottom Ash Pond None 1982 FALSE TRUE FALSE FALSE Other TRUE TRUE FALSE 3/25/2009 No FALSE FALSE 36 641 29 FALSE 2nd round 5

Cleco Power LLC Rodemacher Power

Station -Renamed Brame Energy Center 275 Rodemacher Road Lena LA 71447 Fly Ash Pond None 1982 TRUE FALSE FALSE FALSE TRUE TRUE FALSE 3/25/2009 No FALSE FALSE 109 670 23 FALSE 2nd round 5

Gulf Power Lansing Smith Power

Station Bin 328, 1 Energy Place Pensacola FL 32520 Plant Smith Ash Pond None 1965 TRUE TRUE TRUE FALSE Other FALSE FALSE FALSE 1/14/2009 2/5/2009 Undelivered FALSE FALSE 172 2611 20 FALSE 2nd round 5 Kansas City Power & Light Co Lake Road Generating

Station 1413 Lower Lake Roag St. Joseph MO 64504 Settling Pond None 1967 1977 TRUE FALSE FALSE FALSE Other TRUE TRUE FALSE FALSE FALSE 1 5 10 FALSE 2nd Round 9 Kansas City Power & Light Co Lake Road Generating

Station 1413 Lower Lake Roag St. Joseph MO 64504Slag Settling Pond None 1967 1977 FALSE FALSE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 1 7 10 FALSE 2nd Round 9 South Carolina Electric&Gas Co Urquhart Generating

Station 100 Keith Mullis Drive Beech Island SC 29842 Ash Pond 1 None 1977 TRUE TRUE TRUE FALSE Other TRUE FALSE FALSE FALSE FALSE 1 11 8 FALSE 2nd Round 9 South Carolina Electric&Gas Co Urquhart Generating

Station 100 Keith Mullis Drive Beech Island SC 29842 Ash Pond 2 None 1977 TRUE TRUE TRUE FALSE Other TRUE FALSE FALSE FALSE FALSE 1 7 14 FALSE 2nd Round 9 Georgia Power Co Plant Hammond 5963 Alabama Highway, SW Coosa GA 30129 Ash Pond 1 Significant 1952 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 6/17/2009 FALSE FALSE 35 800 25 FALSE 3rd round 4 Georgia Power Co Plant Hammond 5963 Alabama Highway, SW Coosa GA 30129 Ash Pond 2 None 1969 1998 TRUE TRUE TRUE TRUE other TRUE TRUE TRUE 6/17/2009 FALSE FALSE 21 509 24 FALSE 3rd round 4 Georgia Power Co Plant Hammond 5963 Alabama Highway, SW Coosa GA 30129 Ash Pond 3 None 1974 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 6/17/2009 FALSE FALSE 25 687 28 FALSE 3rd round 4 Georgia Power Co Plant Hammond 5963 Alabama Highway, SW Coosa GA 30129 Ash Pond 4 None 1986 1994, 2000 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 6/17/2009 FALSE FALSE 54 1242 35 FALSE 3rd round 4

Georgia Power Co Plant McDonough 5551 S Cobb Dr SE Symra GA 30080 Ash Pond 1 None 1964 TRUE TRUE TRUE FALSE other TRUE FALSE TRUE 12/10/2009 FALSE FALSE 25 546 30 FALSE Pond is inactive and covered 3rd round 4 Georgia Power Co Plant McDonough 5551 S Cobb Dr SE Symra GA 30080 Ash Pond 2 None 1968 FALSE TRUE FALSE FALSE TRUE FALSE TRUE 12/10/2009 FALSE FALSE 6 118 16 FALSE 3rd round 4 Georgia Power Co Plant McDonough 5551 S Cobb Dr SE Symra GA 30080 Ash Pond 3 None 1969 TRUE FALSE FALSE FALSE TRUE FALSE TRUE 12/10/2009 FALSE FALSE 23 642 39 FALSE 3rd round 4 Georgia Power Co Plant McDonough 5551 S Cobb Dr SE Symra GA 30080 Ash Pond 4 High 1972 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 12/10/2009 2/01/2010 Undelivered FALSE FALSE 41 1996 68 FALSE 3rd round 4 Georgia Power Co Plant Mitchell 5200 Radium Springs Road Albany GA 31705 Ash Pond 1 Significant 1963 TRUE TRUE TRUE FALSE FALSE FALSE TRUE 11/5/2009 FALSE FALSE 44 659 23 FALSE 3rd round 4 Georgia Power Co Plant Mitchell 5200 Radium Springs Road Albany GA 31705 Ash Pond 2 None 1979 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 11/5/2009 FALSE FALSE 43 644 33 FALSE 3rd round 4

Georgia Power Co Plant Mitchell 5200 Radium Springs Road Albany GA 31705 Ash Pond A None 1948 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE FALSE FALSE 4 61 0 FALSE (8) pond is covered over with asphalt and concrete 3rd round 4 Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 B' Pond None 1976 TRUE TRUE TRUE TRUE other FALSE FALSE FALSE FALSE FALSE 30 298 FALSE 3rd round 4

Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 Pond C None 1976 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE FALSE FALSE 12 FALSE Pond is covered and inactive 3rd round 4

Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 Pond B None 1976 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE FALSE FALSE 6 FALSE Pond is covered and inactive 3rd round 4

Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 Pond A None 1975 TRUE TRUE TRUE FALSE other FALSE FALSE FALSE FALSE FALSE 19 FALSE Pond is covered and inactive 3rd round 4

Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 Gypsum Solid Waste Facility None 1992 FALSE FALSE FALSE TRUE FALSE FALSE FALSE 12/29/2009 FALSE FALSE 16 135 14 FALSE 3rd round 4 Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 Ash Pond 3 Significant 1976 2001 TRUE TRUE TRUE FALSE other TRUE TRUE TRUE 12/29/2009 FALSE FALSE 69 434 37 FALSE 3rd round 4 Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 Ash Pond 2 Significant 1966 1970 TRUE TRUE TRUE TRUE other TRUE TRUE TRUE 12/29/2009 FALSE FALSE 50 1103 39 FALSE 3rd round 4 Georgia Power Co Plant Yates 708 Dyer Road Newnan GA 30263 Ash Pond 1 None 1950 TRUE TRUE TRUE FALSE other TRUE FALSE TRUE 12/29/2009 FALSE FALSE 17 184 15 FALSE 3rd round 4

Alabama Power Co Ernest C. Gaston

Electric Generating Plant Highway 25 South Wilsonville AL 35186 Ash Pond Dam None 1960 2006 TRUE TRUE TRUE TRUE other FALSE FALSE TRUE 7/1/2009 FALSE FALSE 339 18888 45 FALSE 3rd round 5 Ameren Energy Generating Co Coffeen Power

Station 134 CIPS Lane Montgomery County IL 62433 Recycle Pond None 1979 FALSE FALSE TRUE FALSE other TRUE TRUE TRUE 2009 FALSE FALSE 23 500 42 FALSE 3rd round 6

Ameren Energy Generating Co Coffeen Power

Station 134 CIPS Lane Montgomery County IL 62433Gypsum Management Facility Recycle Pond None 2009 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 2009 FALSE FALSE 17 243 16 FALSE 3rd round 6

Ameren Energy Generating Co Joppa Power Station 2100 Portland Road Massac County IL 62953 Ash Pond None 1973 TRUE TRUE TRUE FALSE primary water treatment, boiler water make-up treatment, lab and sampling streams, boiler blowdown, floor drains, coal pile runoff, house service water systems; pyrites TRUE TRUE TRUE 2009 FALSE FALSE 103 3833 55 FALSE 3rd round 4

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Ash Recycle Pond #1 None 1973 TRUE TRUE TRUE FALSE sludges from potable water, cooling tower, industrial waste treatment TRUE TRUE TRUE 6/24/2009 No FALSE FALSE 1 4 9 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Ash Recycle Pond #2 None 1973 TRUE TRUE TRUE FALSE sludges from potable water, cooling tower, industrial waste treatment TRUE TRUE TRUE 6/24/2009 No FALSE FALSE 1 5 9 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Ash Recycle Pond #3 None 1973 TRUE TRUE TRUE FALSE sludges from potable water, cooling tower, industrial waste treatment TRUE TRUE TRUE 6/24/2009 No FALSE FALSE 1 5 9 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Ash Recycle Pond #4 None 1973 TRUE TRUE TRUE FALSE sludges from potable water, cooling tower, industrial waste treatment TRUE TRUE TRUE 6/24/2009 No FALSE FALSE 1 5 9 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Coal Refuse Disposal Site - Stage I & II Pond None pre 1988 TRUE FALSE FALSE FALSE other TRUE TRUE TRUE 9/25/2009 12/16/2009 No FALSE FALSE 1 13 22 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Coal Refuse Disposal Site - Storage Pond #1 None 2003 TRUE FALSE FALSE FALSE other TRUE TRUE TRUE 9/25/2009 12/16/2009 No FALSE FALSE 1 2 10 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Coal Refuse Disposal Site - Stage III & IV Pond Low 1991 TRUE FALSE FALSE FALSE other TRUE TRUE TRUE 12/31/2009 6/11/1999 Undelivered FALSE FALSE 2 26 22 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Coal Refuse Disposal Site - Storage Pond #2 None 2003 TRUE FALSE FALSE FALSE other TRUE TRUE TRUE 9/25/2009 12/16/2009 No FALSE FALSE 1 11 10 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Coal Refuse Disposal Site - Leachate Pump Pond None pre 1988 TRUE FALSE FALSE FALSE other TRUE TRUE TRUE 9/25/2009 12/16/2009 No FALSE FALSE 0 1 0 FALSE (8) height - incised 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Coal Refuse Disposal Site - Small Sediment Trap None 2008 TRUE FALSE FALSE FALSE other TRUE TRUE TRUE 9/25/2009 12/16/2009 No FALSE FALSE 0 1 6 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Ash Disposal Site - Stormwater Surge Pond None 1995 TRUE TRUE TRUE TRUE plant runoff sediments, leachate solids, anthracite, sand activated carbon filters demineralizer resins, fireclay brick, sandblasting material, paint chips, asphalt, concrete, stones, rocks, bricks, asbestos TRUE TRUE TRUE monthly monthly FALSE FALSE 1 17 16 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Ash Disposal Site - Polishing Pond None 1969 TRUE TRUE TRUE TRUE plant runoff sediments, leachate solids, anthracite, sand activated carbon filters demineralizer resins, fireclay brick, sandblasting material, paint chips, asphalt, concrete, stones, rocks, bricks, asbestos TRUE TRUE TRUE monthly monthly FALSE FALSE 0 0 6 FALSE 3rd Round 10

Edison International Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748Ash Disposal Site - Treatment Pond #1 None 1969 TRUE TRUE TRUE TRUE plant runoff sediments, leachate solids, anthracite, sand activated carbon filters demineralizer resins, fireclay brick, sandblasting material, paint chips, asphalt, concrete, stones, rocks, bricks, asbestos TRUE TRUE TRUE monthly monthly FALSE FALSE 0 1 0 FALSE (8) height - incised 3rd Round 10Edison International Homer City Generating Station 1750 Power Plant Road Homer City PA 15748Ash Disposal Site - Treatment Pond #2 None 1969 TRUE TRUE TRUE TRUE plant runoff sediments, leachate solids, anthracite, sand activated carbon filters demineralizer resins, fireclay brick, sandblasting material, paint chips, asphalt, concrete, stones, rocks, bricks, asbestos TRUE TRUE TRUE monthly monthly FALSE FALSE 0 1 0 FALSE (8) height - incised 3rd Round 10

Duke Energy Corp WH Zimmer

Generating Station 1781 US Route 52 Moscow OH 45153Wastewater Pond Significant 1989 FALSE FALSE FALSE FALSEwastewater treatment residual solids, boiler blow down, boiler chemical cleaning,
stormwater runoff, floor and lab drains, drains from equipment cleaning TRUE FALSE TRUE 06/2009 06/2008 Yes FALSE FALSE 10 75 21 FALSE 3rd round 4

Northern Indiana Pub Serv Co Bailly Generating

Station 246 Bailly Station Road Chesterton IN 46304 Primary 1 None 1981 None FALSE TRUE FALSE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 6 41 0 FALSE (8) height - incised 4th Round 10

Northern Indiana Pub Serv Co Bailly Generating

Station 246 Bailly Station Road Chesterton IN 46304 Secondary 1 None 1981 None FALSE TRUE FALSE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 2 18 0 FALSE (8) height - incised 4th Round 10

Northern Indiana Pub Serv Co Bailly Generating

Station 246 Bailly Station Road Chesterton IN 46304 Primary 2 None 1981 None FALSE TRUE FALSE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 6 47 0 FALSE (8) height - incised 4th Round 10

Northern Indiana Pub Serv Co Bailly Generating

Station 246 Bailly Station Road Chesterton IN 46304 Secondary 2 None 1981 None FALSE TRUE FALSE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 3 30 0 FALSE (8) height - incised 4th Round 10

Northern Indiana Pub Serv Co Bailly Generating

Station 246 Bailly Station Road Chesterton IN 46304 Bottom Ash Pond None 1981 None FALSE TRUE FALSE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 1 2 0 FALSE (8) height - incised 4th Round 10

Northern Indiana Pub Serv Co Bailly Generating

Station 246 Bailly Station Road Chesterton IN 46304 Forebay None 1981 None FALSE TRUE FALSE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 0 2 0 FALSE (8) height - incised 4th Round 10

Northern Indiana Pub Serv Co Michigan City

Generating Station 101 Wabash St. Michigan City IN 46360 Primary 1 None 1973 TRUE TRUE TRUE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 2 36 14 FALSE 4th Round 10

Northern Indiana Pub Serv Co Michigan City

Generating Station 101 Wabash St. Michigan City IN 46360 Secondary 1 None 1973 TRUE TRUE TRUE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 0 3 5 FALSE 4th Round 10

Northern Indiana Pub Serv Co Michigan City

Generating Station 101 Wabash St. Michigan City IN 46360 Primary 2 None 1973 TRUE TRUE TRUE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 3 44 14 FALSE 4th Round 10

Northern Indiana Pub Serv Co Michigan City

Generating Station 101 Wabash St. Michigan City IN 46360 Secondary 2 None 1973 TRUE TRUE TRUE FALSE R/O Water, air heater wash water, filter backwash, TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 0 3 0 FALSE Completely incised 4th Round 10

Northern Indiana Pub Serv Co Michigan City

Generating Station 101 Wabash St. Michigan City IN 46360 Bottom Ash Pond None 1973 FALSE TRUE FALSE FALSE coal pile
stormwater runoff, coal handling area drainage TRUE TRUE TRUE9/3/2010, biannually October 2010 FALSE FALSE 1 1 0 FALSE Completely incised 4th Round 10

Northern Indiana Pub Serv Co Michigan City

Generating Station 101 Wabash St. Michigan City IN 46360 Final Settling Basin None 1973 TRUE TRUE TRUE FALSE effluent from Secondary 1 and 2, and Bottom Ash Pond TRUE TRUE TRUE 9/3/2010, biannually October 2010 FALSE FALSE 6 85 0 FALSE Completely incised 4th Round 10 Northern Indiana Pub Serv Co D.H. Mitchell

Generating Station 1 North Clark Road Gary IN 46401 Primary 1 None 1956 None TRUE TRUE FALSE FALSE TRUE TRUE TRUE 9/3/2010, biannually FALSE FALSE 1 22 12 FALSE 4th Round 10 Northern Indiana Pub Serv Co D.H. Mitchell

Generating Station 1 North Clark Road Gary IN 46401 Primary 2 None 1956 None TRUE TRUE FALSE FALSE TRUE TRUE TRUE 9/3/2010, biannually FALSE FALSE 2 31 12 FALSE 4th Round 10 Northern Indiana Pub Serv Co D.H. Mitchell

Generating Station 1 North Clark Road Gary IN 46401 Primary 3 None 1969 None TRUE TRUE FALSE FALSE TRUE TRUE TRUE 9/3/2010, biannually FALSE FALSE 2 31 12 FALSE 4th Round 10 Northern Indiana Pub Serv Co D.H. Mitchell

Generating Station 1 North Clark Road Gary IN 46401 Primary 4 None 1981 None TRUE TRUE FALSE FALSE TRUE TRUE TRUE 9/3/2010, biannually FALSE FALSE 2 34 12 FALSE 4th Round 10 Northern Indiana Pub Serv Co D.H. Mitchell

Generating Station 1 North Clark Road Gary IN 46401 Secondary 1 None 1956 None TRUE TRUE FALSE FALSE TRUE TRUE TRUE 9/3/2010, biannually FALSE FALSE 1 3 0 FALSE (8) height - incised 4th Round 10 Northern Indiana Pub Serv Co D.H. Mitchell

Generating Station 1 North Clark Road Gary IN 46401 Secondary 2 None 1956 None TRUE TRUE FALSE FALSE TRUE TRUE TRUE 9/3/2010, biannually FALSE FALSE 0 2 0 FALSE (8) height - incised 4th Round 10

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 B1 Significant 1992 TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 14 193 16 FALSE 4th Round 9

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 B2 Significant 1992 2008 FALSE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 13 148 13 FALSE 4th Round 9

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 B3 Significant 1992 TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 8 90 12 FALSE 4th Round 9

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 C1 Significant 1992 TRUE FALSE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 17 115 15 FALSE 4th Round 9

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 C2 Significant 2001 2002 TRUE FALSE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 17 173 13 FALSE 4th Round 9

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 E1 Significant 2003 TRUE FALSE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 8 115 17 FALSE 4th Round 9

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 E2 Significant 2003 TRUE FALSE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 17 165 12 FALSE 4th Round 9

NV Energy Reid Gardner

Generating Station 1 Wally Kay Way Moapa NV 89025 F Significant 1986 TRUE FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE 4 37 12 FALSE 4th Round 9

UGI Development Company Hunlock Power

Station 390 Route 11, P.O. Box 224 Hunlock Creek PA 18621 East Basin (003) None mid1960s TRUE TRUE TRUE FALSE TRUE FALSE FALSE FALSE FALSE 5 90 25 FALSE Impoundment currently shut down, working to officially close with PADEP 4th Round 10

UGI Development Company Hunlock Power

Station 390 Route 11, P.O. Box 224 Hunlock Creek PA 18621West Basin (005) None mid1960s TRUE TRUE TRUE FALSE TRUE FALSE FALSE FALSE FALSE 5 90 10 FALSE Impoundment currently shut down, working to officially close with PADEP 4th Round 10 Otter Tail Power Company Coyote Station 6240 13th Street SW Beulah ND 58523 Sluice Pond None 1981 FALSE FALSE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 1 5 0 FALSE (8) height - incised 4th Round 10 Otter Tail Power Company Coyote Station 6240 13th Street SW Beulah ND 58523 Ash Pond None 1981 FALSE FALSE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 4 40 0 FALSE (8) height - incised 4th Round 10 Otter Tail Power Company Coyote Station 6240 13th Street SW Beulah ND 58523 Nelson Pond None 1981 FALSE FALSE TRUE FALSE TRUE TRUE FALSE FALSE FALSE 5 92 12 FALSE 4th Round 10

Great River Energy Coal Creek Station 2875 Third Street SW Underwood ND 58576 Upstream Raise/Ash Pond 92/SW Section 16 Low 1979 1989/2005/2006 /2008 TRUE TRUE FALSE TRUE TRUE TRUE TRUE 8/6/2010 FALSE FALSE 92 769 75 FALSE 4th Round 10 Great River Energy Coal Creek Station 2875 Third Street SW Underwood ND 58576 Ash Pond 91 Low 1979 1992 FALSE FALSE FALSE TRUE TRUE TRUE TRUE 4/14/2010 FALSE FALSE 70 249 25 FALSE 4th Round 10

Great River Energy Stanton Plant 4001 HWY 200A Stanton ND 58571 North Bottom Ash Pond/Cell Less than Low 1994 None FALSE FALSE TRUE TRUE Coal mill rejects TRUE TRUE TRUE 9/15/2010 FALSE FALSE 4 37 13 FALSE 4th Round 10

Great River Energy Stanton Plant 4001 HWY 200A Stanton ND 58571 Middle Bottom Ash Pond/Retentio n Cell Less than Low 1994 None FALSE FALSE TRUE TRUE Coal mill rejects TRUE TRUE TRUE 9/15/2010 FALSE FALSE 3 38 13 FALSE 4th Round 10

Great River Energy Stanton Plant 4001 HWY 200A Stanton ND 58571South Bottom Ash Pond/Cell 2 Less than Low 1994 None FALSE FALSE TRUE TRUE Coal mill rejects TRUE TRUE TRUE 9/15/2010 FALSE FALSE 4 40 13 FALSE 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959South Fly Ash Pond Low 1979 FALSE FALSE FALSE TRUE TRUE FALSE FALSE 12/2008 12/2013 FALSE FALSE 10 103 23 FALSE 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Fly Ash Disposal Pond Low 1979 FALSE FALSE FALSE TRUE TRUE FALSE FALSE 12/2008 12/2013 FALSE FALSE 45 38 FALSE 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond A-1 None 1979 FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 32 25 FALSE 4th Round 10

Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond 4 None 1979 FALSE FALSE TRUE TRUE over flow water from bottom ash TRUE FALSE FALSE FALSE FALSE 55 0 FALSE (8) height - incised 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond 1 None 1979 FALSE TRUE TRUE FALSE slurry water FALSE FALSE FALSE FALSE FALSE 9 0 FALSE (8) height - incised 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond 2 None 1979 FALSE TRUE TRUE FALSE slurry water FALSE FALSE FALSE FALSE FALSE 15 0 FALSE (8) height - incised 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond S-1 None 1996 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 71 0 FALSE (8) height - incised 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond 3A None 1992 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 20 0 FALSE (8) height - incised 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond 3 None 1979 FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE FALSE 20 24 FALSE 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond S-6 None 1988 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 16 10 FALSE 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond S-2 None 1996 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 25 0 FALSE (8) height - incised 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959 Pond S-3 None 1996 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 20 0 FALSE (8) height - incised 4th Round 10 Southern Illinois Power Coop Marion Plant 11543 Lake of Egypt Rd Marion IL 62959Coal Handling Ponds None 1979 FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE 7 0 FALSE (8) height - incised 4th Round 10

Counts: 676 676 676 676 619 676 676 676 676 676 676 676 676 676 676 676 676 676 676 676 676 1 676 676 676 653 637 672 676 676 676 676 676