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 35903

Ash 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 35580

Ash 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 35130

Ash 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 55721

Central

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 53954

Secondary 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 62448

Secondary 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 63129

Old 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 43811

Ash 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 72734

Secondary

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 75650

Auxilliary 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 75650

Scrubber 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 75650

Secondary

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 75650

West 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 85606

Coal 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 85606

Cooling 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 85606

Scrubber 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 85606

Scrubber 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 2
Arizona 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 86032

Sedimentation

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 86032

West 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 65244

Ash 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 65244

Ash 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 65244

Ash Pond Cell 3 -

Lowest None 1980 FALSE FALSE FALSE FALSE

water only

polishing TRUE FALSE FALSE

visual

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 65244

Ash 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 58523

Spray 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 58571

Settling 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 58571

Settling 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 58571

Settling 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 64051

South 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 84624

Ash 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 84624

Wastewater

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 71052

Auxiliary 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 71052

Secondary

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 71052

Surge 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 77960

Secondary 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 28012

Active 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 27052

Active 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 47928

Ash 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 47928

Secondary 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 47528

Secondary 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 47150

Secondary 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 29669

Secondary 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 28682

Active 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 47801

Secondary 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 TRUE

Apr 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 45157

Ash 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 3
Dynegy Midwest

Generation Inc

Baldwin Energy

Complex

10901 Baldwin Road PO Box

146 Baldwin IL 62217

Ash 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 61327

Ash 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 62024

West 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 before

placed back online 1st round 6

East Kentucky Power

Coop Inc

H. L. Spurlock Power

Station Route 8, Box 398 Maysville KY 41056

Spurlock 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 64832

Ash

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 15077

South 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 15077

West 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 TRUE

All 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 47250

West 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 41045

Ash 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 41045

Ash 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 41045

Gypsum 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 41045

Gypsum

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 41045

Secondary 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 42330

Ash 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 70760

Water

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 40272

Construction

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 51102

Surface

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 51102

Surface

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 51102

Surface

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 58530

30 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 46392

Waste 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 46392

Yard 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 55337

Settling 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 45620

South 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 8
PacifiCorp

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 80549

South 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 17884

Ash 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 17884

Silo 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 17884

Stormwater

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 29433

Active 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 33572

South 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 33572

South

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 33572

South 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 FALSE

flows 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 11
Tennessee 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 37716

Gypsum

Disposal Area

2A Low 1981 2008 TRUE FALSE FALSE TRUE

flows 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 37066

Stilling 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 37134

Ash 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 11
Tennessee 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 42337

Scrubber

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 42337

Slag 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 42086

Consolidated

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 35772

Gypsum 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 74735

South 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 74735

South 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 2726

Coal Pile RunOff Sump None 1982 - 1984 FALSE TRUE FALSE FALSE TRUE TRUE FALSE 1984 FALSE FALSE 0 0 0 FALSE8-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 19966

Ash 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 19966

Sedimentation

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 66542

Area 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 66542

Area 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 19904

Waste 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 77481

Air 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 77481

Coal 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 repor

8- Height Below

Grade 2nd Round 9

NRG Texas Power,

LLC

Limestone Electric

Generating Station Route 1, Box 85 Jewett TX 75846

Stormwater

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 75846

Stormwater

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 9
NRG 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 14048

South 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 14048

South

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 45342

Secondary

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 45342

West 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 64120

Scrubber 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 64735

Ash 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 66040

Scrubber

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 64088

Slag 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 81626

Concentrator

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 81626

Concentrator

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 14048

Settling 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 52722

South 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 52404

Ash 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 52404

Ash 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 52404

Coal 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 52501

Zero 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. 2nd
Xcel 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 64504

Slag 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 62433

Gypsum

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 15748

Ash 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 15748

Ash 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 15748

Ash 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 15748

Ash 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 15748

Coal 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 15748

Coal 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 15748

Coal 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 15748

Coal 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 15748

Coal 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 15748

Coal 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 15748

Ash 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 15748

Ash 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 15748

Ash 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 10
Edison International

Homer City

Generating Station 1750 Power Plant Road Homer City PA 15748

Ash 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 45153

Wastewater

Pond Significant 1989 FALSE FALSE FALSE FALSE

wastewater

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 TRUE

9/3/2010,

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 18621

West 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 58571

South 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 62959

South 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 62959

Coal 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