Figure 20d 89

Transcription

1 Figure 20c 88

2 Figure 20d 89

3 Figure 20e 90

4 Figure 21a 91

5 Figure 21b 92

6 Figure 21c 93

7 Figure 21d 94

8 Figure 21e 95

9 Figure 22a 96

10 Figure 22b 97

11 Figure 22c 98

12 Figure 22d 99

13 Figure 22e 100

14 Figure 23a 101

15 Figure 23b 102

16 Figure 23c 103

17 Figure23d 104

18 Figure 23e 105

19 Figure 24a 106

20 Figure 24b 107

21 Figure 24c 108

22 Figure 24d 109

23 Figure 24e 110

24 Figure 25a 111

25 Figure 25b 112

26 Figure 25c 113

27 Figure 25d 114

28 Figure 25e 115

29 Figure 26a 116

30 Figure 26b 117

31 Figure 26c 118

32 Figure 26d 119

33 Figure 26e 120

34 Figure 27a 121

35 Figure 27b 122

36 Figure 27c 123

37 Figure 27d 124

38 Figure 27e 125

39 MINE POOL ATLAS TABLES 126

40 Table 1 SUMMARY OF POTENTIALLY TOTALLY FLOODED UNDERGROUND MINES BY COAL SEAM * Group/Formation Coal Seam No. of Mines Mean bed thickness (feet) Min. footprint area (acres) Max. footprint area (acres) Mean footprint area (acres) Median footprint area (acres) Total footprint area (acres) Estimated void volume (acre feet) Max. potential storage (million gallons) Dunkard Group Washington 0 Waynesburg A 0 Waynesburg 0 Uniontown 0 Monongahela Sewickley , , , Group Redstone , , Pittsburgh , , , , , Elk Lick 0 Harlem 0 Conemaugh Bakerstown 0 Group Brush Creek 0 Mahoning 0 Upper Freeport , , , , Lower Freeport 0 Upper Kittanning Middle Kittanning , , , , , Allegheny Lower Kittanning 0 Formation No. 6 Block 0 Upper No. 5 Block 0 No. 5 Block 0 Little No. 5 Block 0 Stockton Rider 0 Stockton 0 Stockton lower split 2 0 Coalburg , , , , , , Coalburg lower split 1 0 Little Coalburg 0 Upper Winifrede 0 Winifrede 0 Lower Winifrede 0 Chilton A 0 Chilton 0 Little Chilton Fire Clay 0 Fire Clay lower split 1 0 Cedar Grove 0 Kanawha Williamson 0 Formation Peerless , , , , No. 2 Gas , , , , No. 2 Gas lower split 2 0 Powellton , , , , , , Lower Powellton , , , , Eagle A 0 Eagle , , , , , , Eagle lower split Little Eagle Middle War Eagle 0 Bens Creek 0 Lower War Eagle 0 Glenalum Tunnel 0 Gilbert 0 Douglas 0 Bradshaw 0 Iaeger 0 Castle 0 Sewell B 0 Sewell A 0 Sewell , , , , , , New River Welch 0 Formation Little Raleigh 0 Beckley , , , , , , Beckley lower split 1 0 Fire Creek Little Fire Creek 0 Pocahontas No. 9 0 Pocahontas No. 7 0 Pocahontas No. 6 upper split 1 0 Pocahontas No , , , , Pocahontas Pocahontas No. 5 0 Formation Pocahontas No , , , , , , Pocahontas No , , , , , , Pocahontas No. 2 0 Squire Jim 0 Total 21 seams/14 with mines>500 acres , , , , , ,106, , * Includes above, near, and below drainage underground mines seams containing below drainage underground mines > 500 acres in area are highlighted and major seams are in boldface 127

41 Table 2 SUMMARY OF POTENTIALLY PARTIALLY FLOODED UNDERGROUND MINES BY COAL SEAM * Group/Formation Coal Seam No. of Mines Mean bed thickness (feet) Min. footprint area (acres) Max. footprint area (acres) Mean footprint area (acres) Median footprint area (acres) Total footprint area (acres) Estimated void volume (acre feet) Max. potential storage (million gallons) Washington 0 Dunkard Group Waynesburg A 0 Waynesburg Monongahela Uniontown 0 Sewickley , , , , Group Redstone , , , , Pittsburgh , , , , Elk Lick 0 Conemaugh Harlem 0 Bakerstown 54 Group Brush Creek , , , , Mahoning 0 Upper Freeport , , , , Lower Freeport Upper Kittanning Middle Kittanning , , , , Allegheny Lower Kittanning , Formation No. 6 Block , Upper No. 5 Block , No. 5 Block , , , , Little No. 5 Block , Stockton Rider Stockton , , , , Stockton lower split , , Coalburg , , , , Coalburg lower split Little Coalburg , Upper Winifrede Winifrede , , , , Lower Winifrede Chilton A , Chilton , , Little Chilton , , Fire Clay , , Fire Clay lower split , , Cedar Grove , , Kanawha Williamson , , Formation Peerless , , , , No. 2 Gas , , , , No. 2 Gas lower split Powellton , , , , Lower Powellton , , , , Eagle A , Eagle , , , , Eagle lower split , , Little Eagle , , Middle War Eagle Bens Creek , , Lower War Eagle Glenalum Tunnel , Gilbert 0 Douglas 0 Bradshaw 0 Iaeger 0 Castle 0 Sewell B Sewell A Sewell , , , , New River Welch 0 Formation Little Raleigh 0 Beckley , , , , Beckley lower split 1 0 Fire Creek , , Little Fire Creek , Pocahontas No , Pocahontas No Pocahontas No. 6 upper split , Pocahontas Pocahontas No , , , , Pocahontas No , , Formation Pocahontas No , , , , Pocahontas No , , , , Pocahontas No , , , Squire Jim Total 58 seams/19 with mines>500 acres 5, , , , ,499, ,138, ,022, * Includes above and near drainage underground mines seams containing near drainage underground mines > 500 acres in area are highlighted and major seams are in boldface 128

42 Table 3 POTENTIALLY TOTALLY AND PARTIALLY FLOODED MINES BY DRAINAGE POSITION AND MINE FOOTPRINT AREA Group/Formation Seam Mines above drainage Mine footprint <500 acres Mine footprint >500 acres partially flooded partially flooded Mines near drainage Mine footprint <500 acres Mine footprint >500 acres partially flooded partially flooded Mines below drainage Mine footprint <500 acres Mine footprint >500 acres partially flooded Dunkard Group Washington Waynesburg A Waynesburg 4 Uniontown Monongahela Sewickley Group Redstone Pittsburgh Elk Lick Harlem Conemaugh Bakerstown Group Brush Creek Mahoning Upper Freeport Lower Freeport 2 Upper Kittanning 1 1 Middle Kittanning Allegheny Lower Kittanning 5 1 Formation No. 6 Block 16 Upper No. 5 Block 67 4 No. 5 Block Little No. 5 Block 10 1 Stockton Rider 2 Stockton Stockton lower split Coalburg Coalburg lower split 1 5 Little Coalburg 1 1 Upper Winifrede 1 Winifrede Lower Winifrede 9 Chilton A 15 3 Chilton 22 4 Little Chilton Fire Clay Fire Clay lower split Cedar Grove Kanawha Williamson 65 9 Formation Peerless No. 2 Gas No. 2 Gas lower split 2 10 Powellton Lower Powellton Eagle A 15 2 Eagle Eagle lower split Little Eagle Middle War Eagle 11 Bens Creek 8 1 Lower War Eagle 1 Glenalum Tunnel 1 1 Gilbert Douglas Bradshaw Iaeger Castle Sewell B 3 Sewell A 3 Sewell New River Welch Formation Little Raleigh Beckley Beckley lower split 1 Fire Creek Little Fire Creek 25 Pocahontas No Pocahontas No Pocahontas No. 6 upper split Pocahontas No Pocahontas Pocahontas No Formation Pocahontas No Pocahontas No Pocahontas No Squire Jim 4 Total All seams 16 4, partially flooded 129

43 Table 4 POTENTIAL EXTENT OF PARTIAL FLOODING IN ABOVE DRAINAGE MINES <500 ACRES IN AREA Group/Formation Seam Mines above drainage Mine footprint <500 acres partially flooded 130 Potential extent of partial flooding Small Medium Large Very large Dunkard Group Washington Waynesburg A Waynesburg 4 4 Uniontown Monongahela Sewickley Group Redstone Pittsburgh Elk Lick Harlem Conemaugh Bakerstown Group Brush Creek Mahoning Upper Freeport Lower Freeport Upper Kittanning 1 1 Middle Kittanning Allegheny Lower Kittanning 5 5 Formation No. 6 Block Upper No. 5 Block No. 5 Block Little No. 5 Block Stockton Rider Stockton Stockton lower split Coalburg Coalburg lower split Little Coalburg 1 1 Upper Winifrede 1 1 Winifrede Lower Winifrede Chilton A Chilton Little Chilton Fire Clay Fire Clay lower split Cedar Grove Kanawha Williamson Formation Peerless No. 2 Gas No. 2 Gas lower split Powellton Lower Powellton Eagle A Eagle Eagle Lower Split Little Eagle Middle War Eagle Bens Creek 8 8 Lower War Eagle 1 1 Glenalum Tunnel 1 1 Gilbert Douglas Bradshaw Iaeger Castle Sewell B Sewell A Sewell New River Welch Formation Little Raleigh Beckley Beckley lower split 1 Fire Creek Little Fire Creek Pocahontas No Pocahontas No Pocahontas No. 6 upper split Pocahontas No Pocahontas Pocahontas No Formation Pocahontas No Pocahontas No Pocahontas No Squire Jim Total All seams 4,383 3,

44 Table 5 POTENTIAL EXTENT OF PARTIAL FLOODING IN ABOVE DRAINAGE MINES >500 ACRES IN AREA Group/Formation Seam Mines above drainage Mine footprint >500 acres 131 partially flooded Potential extent of partial flooding Small Medium Large Very large Washington Dunkard Group Waynesburg A Waynesburg Uniontown Monongahela Sewickley 1 Group Redstone Pittsburgh Elk Lick Harlem Conemaugh Bakerstown Group Brush Creek Mahoning Upper Freeport Lower Freeport Upper Kittanning Middle Kittanning Allegheny Lower Kittanning Formation No. 6 Block 1 1 Upper No. 5 Block No. 5 Block Little No. 5 Block 1 1 Stockton Rider Stockton Stockton lower split Coalburg Coalburg lower split 1 Little Coalburg 1 1 Upper Winifrede Winifrede Lower Winifrede Chilton A 3 3 Chilton 4 4 Little Chilton Fire Clay Fire Clay lower split Cedar Grove Kanawha Williamson Formation Peerless No. 2 Gas No. 2 Gas lower split 2 Powellton Lower Powellton Eagle A 2 2 Eagle Eagle Lower Split Little Eagle 1 1 Middle War Eagle Bens Creek 1 1 Lower War Eagle Glenalum Tunnel 1 1 Gilbert Douglas Bradshaw Iaeger Castle Sewell B Sewell A Sewell New River Welch Formation Little Raleigh Beckley Beckley lower split 1 Fire Creek Little Fire Creek Pocahontas No Pocahontas No. 7 Pocahontas No. 6 upper split 1 Pocahontas No Pocahontas Pocahontas No Formation Pocahontas No Pocahontas No Pocahontas No. 2 Squire Jim Total All seams

45 Table 6 POTENTIAL EXTENT OF PARTIAL FLOODING IN NEAR DRAINAGE MINES <500 ACRES IN AREA Group/Formation Seam Mines near drainage Mine footprint <500 acres partially flooded 132 Potential extent of partial flooding Small Medium Large Very large Washington Dunkard Group Waynesburg A Waynesburg Uniontown Monongahela Sewickley Group Redstone Pittsburgh Elk Lick Harlem Conemaugh Bakerstown Group Brush Creek 1 1 Mahoning Upper Freeport Lower Freeport Upper Kittanning Middle Kittanning 3 3 Allegheny Lower Kittanning Formation No. 6 Block Upper No. 5 Block No. 5 Block Little No. 5 Block Stockton Rider Stockton 2 2 Stockton lower split 2 Coalburg Coalburg lower split 1 Little Coalburg Upper Winifrede Winifrede 2 2 Lower Winifrede Chilton A Chilton Little Chilton Fire Clay Fire Clay lower split 1 Cedar Grove Kanawha Williamson Formation Peerless No. 2 Gas No. 2 Gas lower split 2 Powellton Lower Powellton 3 3 Eagle A Eagle Eagle lower split 1 Little Eagle Middle War Eagle Bens Creek Lower War Eagle Glenalum Tunnel Gilbert Douglas Bradshaw Iaeger Castle Sewell B Sewell A Sewell New River Welch Formation Little Raleigh Beckley Beckley lower split 1 Fire Creek Little Fire Creek Pocahontas No. 9 Pocahontas No. 7 Pocahontas No. 6 upper split Pocahontas No Pocahontas Formation Pocahontas No. 5 Pocahontas No Pocahontas No Pocahontas No. 2 Squire Jim Total All seams

46 Table 7 POTENTIAL EXTENT OF PARTIAL FLOODING IN NEAR DRAINAGE MINES >500 ACRES IN AREA Group/Formation Seam Mines near drainage Mine footprint >500 acres partially flooded 133 Potential extent of partial flooding Small Medium Large Very large Dunkard Group Washington Waynesburg A Waynesburg Uniontown Monongahela Sewickley Group Redstone 6 6 Pittsburgh Elk Lick Harlem Conemaugh Bakerstown Group Brush Creek 1 1 Mahoning Upper Freeport 7 7 Lower Freeport Upper Kittanning Middle Kittanning Allegheny Lower Kittanning Formation No. 6 Block Upper No. 5 Block No. 5 Block 1 1 Little No. 5 Block Stockton Rider Stockton 1 1 Stockton lower split 2 Coalburg 2 2 Coalburg lower split 1 Little Coalburg Upper Winifrede Winifrede Lower Winifrede Chilton A Chilton Little Chilton Fire Clay Fire Clay lower split 1 Cedar Grove Kanawha Williamson Formation Peerless 1 1 No. 2 Gas No. 2 Gas lower split 2 Powellton Lower Powellton Eagle A Eagle Eagle lower split 1 Little Eagle Middle War Eagle Bens Creek Lower War Eagle Glenalum Tunnel Gilbert Douglas Bradshaw Iaeger Castle Sewell B Sewell A Sewell New River Welch Formation Little Raleigh Beckley Beckley lower split 1 Fire Creek Little Fire Creek Pocahontas No. 9 Pocahontas No. 7 Pocahontas No. 6 upper split 1 Pocahontas No Pocahontas Formation Pocahontas No. 5 Pocahontas No Pocahontas No Pocahontas No Squire Jim Total All seams

47 MINE POOL ATLAS APPENDIX A A-1

48 Test Results of Mining Above/Below Drainage GIS Models The Sewell coal bed was selected to assess the Mining Above/Below Drainage GIS models because it has been extensively mined by underground methods in southern West Virginia as shown in Figure 8. Coal and mining information for the Sewell seam including mine polygons, coal cropline, structure contour of the base of this coal, and scanned images of mine maps (WVGES, 2011) were visually examined to establish which areas have adequate data available to determine the position of each mine relative to major drainage (above, near, or below) and to determine the potential for each mine to be partially or totally filled with groundwater. Of the 884 documented mines in this seam, 472 are located in areas in which cropline, structure contour, and seam elevation raster data are available to provide input to the models. Visual structure contour/cropline examination of underground mines indicates 431 mines are above drainage, 24 are near drainage, and 17 are below drainage. Nineteen of the near drainage mines and 250 of the above drainage mines are potentially. Three of the near drainage mines and all 17 below drainage mines are potentially. The potentially mines have footprints that range in area from 1.7 to 4,587.4 acres and jointly occupy approximately 33,361 acres. The effectiveness of the Mining Above/Below Drainage GIS models was tested by comparing the results of the visual structure contour/cropline examination of underground mines to the GIS model output for 472 mines in the Sewell coal seam located in Nicholas, Fayette, Greenbrier, Raleigh, and northeastern Wyoming counties. The results are shown in Table A-1. The comparison of visual structure contour/cropline examination to Mining Above/Below Drainage GIS models shows the structure contour/cropline examination is the most effective method of identifying areas and potential extents of flooding in mines. The perennial drainage model is a fairly good predictive tool, but it is most effective in identifying potential flooding below drainage. The major drainage model proved ineffective in predicting potential mine flooding. A-2

49 Mine position relative to drainage/extent of probable groundwater flooding Structure contour/cropline examination Method Perennial drainage model Major drainage model Mines above drainage not flooded flooded Mines near drainage not flooded flooded Mines below drainage not flooded flooded Total mines Table A-1. Comparison of structure contour/cropline examination to the major and perennial Mining Above/Below Drainage GIS models for determining mine position with respect to drainage and extent of probable groundwater flooding for underground mines in the Sewell coal seam. Note that Table 1 only includes mines that are potentially partially or totally flooded. A-3

50 MINE POOL ATLAS Potential Totally Flooded Underground Mines > 500 Acres In Area APPENDIX B B-1

51 APPENDIX B POTENTIALLY TOTALLY FLOODED UNDERGROUND MINES >500 ACRES IN AREA Seam name Mine ID Mine name Company name State permit number Average coal bed thickness Storage (MMGal) (inches) Pittsburgh C UNKNOWN UNKNOWN below Pittsburgh A PANAMA OR BEN FRANKLIN MOUNDSVILLE COAL below Pittsburgh A PARRS RUN MINERAL STATE COAL , below Pittsburgh A FAIRFAX NO 3 FAIRFAX MINING CO U A , below Pittsburgh A Glendale Mine Glendale Gas Coal Co , , below Pittsburgh A MINE NO. 42 INDUSTRIAL COLLERIES CORP , , below Pittsburgh A BLACKSVILLE NO 2 CONSOL ENERGY D , , below Pittsburgh A Hitchman Mine Hitchman Coal & Coke Co , , below Pittsburgh B BETHLEHEM MINES NO 8 BETHLEHEM MINES , , below Pittsburgh A ALEXANDER VALLEY CAMP COAL , , below Pittsburgh A BETHLEHEM MINES NO 41 BETHLEHEM MINES , , below Pittsburgh A JOANNE EASTERN ASSOCIATED COAL , , below Pittsburgh A BETHLEHEM MINES NO 44 BETHLEHEM MINES , , below Pittsburgh A CONSOL NO 9 MOUNTAINEER COAL , , below Pittsburgh A CONSOL NO 20 CONSOLIDATION COAL , , below Pittsburgh A IRELAND CONSOLIDATION COAL , , below Pittsburgh A SHOEMAKER MINE CONSOL ENERGY D , , below Pittsburgh A MCELROY MINE MCELROY COAL CO U , , below Pittsburgh A FEDERAL NO 1 EASTERN ASSOCIATED COAL , , below Pittsburgh A FEDERAL NO 2 MINE EASTERN ASSOCIATED D , , below Pittsburgh A ROBINSON RUN NO 95 CONSOL ENERGY D S , , below Pittsburgh A LOVERIDGE MINE CONSOL ENERGY D , , below Pittsburgh A O DONNELL NO 2 ROCHESTER & PITTSBURGH COAL , , near Upper Freeport B WHITETAIL MINE COASTAL COAL , , below Middle Kittanning B SENTINEL MKT WOLF RUN MINING CO U D , , below Middle Kittanning A WHITETAIL KITTANNING MINE KINGWOOD MINING COMPANY U A , , below Coalburg A CAMP CREEK NO 1 ROCKSPRING DEVELOPMENT U , , below Peerless A DAY MINING NO 1 DAY MINING below Peerless A APPALACHIAN EAGLE NO 1 APPALACHIAN EAGLE INC UO , below Peerless C Unknown Turner Coal Co below No. 2 Gas A CEDAR GROVE ZAPATA COAL below No. 2 Gas A DANA SLOPE AMHERST COAL below No. 2 Gas F Unknown Massey , below No. 2 Gas B Mine No. 17 Red Jacket , , below No. 2 Gas A HATFIELD CAMPBELL CREEK HATFIELD CAMPBELL CREEK COAL , , below No. 2 Gas B WP NO 5 W P COAL , , below No. 2 Gas A HAMPTON NO 4 WESTMORELAND COAL , , below No. 2 Gas A NATIONAL COAL MINING NO 25 NATIONAL COAL MINING , , below No. 2 Gas R Mine No. 23 Island Creek Coal Co near No. 2 Gas H Mine No. 8 Island Creek Coal Co , , near Powellton A CRYSTAL RIVERS NO 1 CRYSTAL RIVERS COAL below Powellton A LONG BRANCH NO 18 POW LONG BRANCH ENERGY U below Powellton A RIVERS EDGE NO 1 RIVERS EDGE MINING U , , below Powellton A MOUNTAINEER II MINE MINGO LOGAN COAL CO U A , , below Powellton A DAKOTA NO 2 DAY LLC U A-B , , below Powellton A LONG BRANCH NO 25 LONG BRANCH ENERGY U , , below Powellton A ARACOMA ALMA NO 1 ARACOMA COAL U , , near Lower Powellton A JADE ENERGY NO 2 JADE ENERGY below Lower Powellton B UNKNOWN UNKNOWN , below Eagle A ISLAND CREEK NO 28 ISLAND CREEK COAL , , above Eagle A Jerry Fork Eagle Mine Alex Energy Inc U below Eagle C MELVILLE HUTCHINSON COAL , below Eagle A KANAWHA MINES NO 8 CANNELTON INDUSTRIES , below Eagle B Dehue Mine Elkay Mining Company , , below Eagle A FORK CREEK NO 1 COAL RIVER MINING INC U B , , below Eagle A EAGLE ENERGY NO 1 EAGLE ENERGY U C , , below Eagle A BRODY NO 1 BRODY MINING U , , below Eagle A MCBETH HUTCHINSON COAL , , below Eagle A EAGLE MINE NEWTOWN ENERGY U AA , , below Eagle A DEHUE YOUNGSTOWN MINES CORP , , below Eagle A SPEED MINING INC AMERICAN EAGLE MINE U , , below Eagle A HUTCHINSON BRANCH NO 1 TERRY EAGLE COAL U , near Eagle A Mine No.1 Sycamore Fuels, Inc. D , , near Sewell A PRICE HILL PRICE HILL COLLIERY , below Sewell A SEWELL MOUNTAIN EDGE MINING, INC. EM , below Sewell A SEWELL NO 1-A SEWELL COAL , below Sewell A SCARBRO UNKNOWN , below Sewell A WHIPPLE MINE WORKINGS NEW RIVER , , below Sewell A SUN NEW RIVER COAL , , below Sewell A MEADOW RIVER NO 1 MEADOW RIVER COAL D , , below Sewell A SUMMERLEE UNKNOWN , , below Sewell B LOCHGELLY UNKNOWN , , below Sewell A ECCLES NO 6 WESTMORELAND COAL , , below Sewell AC CRANBERRY NEW RIVER CO , , below Sewell A OAKWOOD NEW RIVER CO , , below Beckley A HANSFORD SMOKELESS NO 4 HANSFORD SMOKELESS COLLIERIES , , below Beckley A BAYBECK MINE NO. 1 TEDDY COAL CO., INC. U-19-84F-B , , below Beckley A BECKLEY PICKANDS MATHER & CO , , below Beckley A ECCLES N0 5 WESTMORELAND COAL , , below Beckley A MAPLE MEADOW MAPLE MEADOW MINING , , below Pocahontas No B LILLYBROOK COAL LILLYBROOK COAL , below Pocahontas No J Unknown Mine J Unknown below Pocahontas No A SHANNON BRANCH COLLIERY ALLIED CHEMICAL below Pocahontas No A POCA NO. 4 SEMET-SOLVAY DIVISION ALLIED CHEMICAL AND DYE CORP , below Pocahontas No A OLGA MINES AND DD HOLES OLGA COAL , , below Pocahontas No C OLGA MINES AND DD HOLES OLGA COAL , , below Pocahontas No A CARTER MINES - DRILL HOLES CARTER COAL , , below Footprint (acres) Drainage position B-2

52 POTENTIALLY TOTALLY FLOODED UNDERGROUND MINES >500 ACRES IN AREA Seam name Mine ID Mine name Company name State permit number Average coal bed thickness (inches) Pocahontas No A NATIONAL POCAHONTAS NATIONAL MINES CORP below Pocahontas No A JOSEPHINE NO 3 POCAHONTAS COAL CO U F below Pocahontas No A KEYSTONE NO 4 EASTERN ASSOCIATED COAL below Pocahontas No A CUCUMBER MINE BROOKS RUN MINING CO LLC U below Pocahontas No A KEYSTONE NO 5 AFFINITY MINING , below Pocahontas No A MAITLAND NO 3 SEAM CONSOLIDATION COAL below Pocahontas No A SLAB FORK NO 10 SLAB FORK COAL , below Pocahontas No A Unknown Kingston Pocahontas Coal Co , , below Pocahontas No A HELEN NO 9 EASTERN GAS & FUEL , , below Pocahontas No A POCAHONTAS NO 3 CANNELTON INDUSTRIES , , below Pocahontas No A SHANNON BRANCH VERA MINING , , below Pocahontas No A PINNACLE MINE PINNACLE MINING CO LLC U A , , below Footprint (acres) Storage (MMGal) Drainage position B-3

53 MINE POOL ATLAS Potential Partially Flooded Underground Mines > 500 Acres In Area APPENDIX C C-1

54 APPENDIX C POTENTIALLY PARTIALLY FLOODED UNDERGROUND MINES >500 ACRES IN AREA Seam name Mine ID Mine name Company name State permit number Average coal bed thickness (inches) flooding Sewickley A Mine No. 2 Ron Coal Co. Inc above very large Sewickley A FLAGGY MEADOW MOHIGAN MINING near very large Sewickley A PRIME NO 1 DANA MINING CO U A , , near very large Sewickley A Mine No. 2 Pursglove Coal Mining Co , , near very large Sewickley A CHRISTOPHER NO 5 PITTSWICK COALS , , near very large Sewickley A PARKER RUN CONTINENTAL COAL , , near very large Sewickley A OSAGE OSAGE COAL , , near very large Redstone A Jesse's Run Mine No. 2 Roblee Coal Company U above small Redstone A Scott Mine No. 4 Reppert Fairmont Coal Co , above large Redstone A RAUER NO 108 RAUER COAL U , , above small Redstone A CENTURY NO 101 BETHLEHEM MINES , , above small Pittsburgh N LABELLE NO 4 UNKNOWN NDE above small Pittsburgh G LABELLE NO 4 UNKNOWN NDE above small Pittsburgh A CANYON COAL & COKE CANYON COAL & COKE above very small Pittsburgh A McClandish Mine Hutchinson Coal Co above very small Pittsburgh A ROSEDALE ROSEDALE COAL above medium Pittsburgh B CONSOL NO 31 UNKNOWN above medium Pittsburgh A Standard Mine Richland Mining Co above small Pittsburgh B GILCHRIST (LABELLE NO 3 ) UNKNOWN NDE above very small Pittsburgh A Mine No. 105 West Bethlehem Mines Corp above very small Pittsburgh D EDGINGTON UNKNOWN above small Pittsburgh A No. 10 West Virginia Coal & Coke above very small Pittsburgh A CONSOL NO 40 & 76 CONSOLIDATION COAL above small Pittsburgh A Consolidation Nos. 76 & 40 Mines Consolidation Coal Co above small Pittsburgh A Rosehill Mine Rosehill Coal Company above small Pittsburgh A BYRON HUTCHINSON COAL above very small Pittsburgh A FRANCIS UNKNOWN above small Pittsburgh B UNKNOWN UNKNOWN above small Pittsburgh A KINGMONT MINES VIRGINIA & PITTSBURGH COAL & COKE above medium Pittsburgh A COMPASS A CLINCHFIELD COAL above small Pittsburgh A Delmar No. 1 Mine Waddell Fuel Co above medium Pittsburgh A RICHLAND RICHLAND COAL , above medium Pittsburgh A Locust Grove Mine West Virginia- Pittsburgh Coal Co , above small Pittsburgh A Glen Cambria Mine Mt. Fuel Co , above very small Pittsburgh A CONSOL NO 37 CONSOLIDATION COAL , above small Pittsburgh D CONSOL NO 23 & 54 CONSOLIDATION COAL , above small Pittsburgh A WENDEL NO 2 WENDEL COAL , , above medium Pittsburgh A LAURA LEE TABLAR FUEL , , above very small Pittsburgh A Dawson Mine No. 3 Commercial Coal & Coke Co , , above small Pittsburgh A GALLOWAY NO 2 SIMPSON CREEK COLLIERIES , , above small Pittsburgh C UNKNOWN UNKNOWN , , above small Pittsburgh B GALLOWAY NO 3 SIMPSON CREEK COLLIERIES , , above very small Pittsburgh A Consolidation No 78 Mine Consolidation Coal Co , , above small Pittsburgh A CHIEFTON UNKNOWN , , above very large Pittsburgh A WHEELING VALLEY WHEELING VALLEY COAL , , above small Pittsburgh A Mine No. 32 Mountaineer Coal Co , , above small Pittsburgh A Consolidation No 25 Mine Consolidation Coal Co , , above small Pittsburgh E CARTER UNKNOWN near small Pittsburgh D UNKNOWN UNKNOWN near very large Pittsburgh A Benwood Mine Wheeling Steel & Iron Co near very large Pittsburgh A National Mine Christopher Fuel Corporation near very large Pittsburgh A CONSOL NO 56 CONSOLIDATION COAL near large Pittsburgh A RAYMOND CITY COAL & TRANS NO 4 & 5 RAYMOND CITY COAL & TRANS , near very large Pittsburgh G MAIDEN KELLYS CREEK COLLIERY near very large Pittsburgh D EMILY MON RAIL & RIVER COAL , near very large Pittsburgh M WILLIAMS UNKNOWN , near very large Pittsburgh A MORGAN NO 2 VIRGINIA & PITTSBURGH COAL & COKE , near large Pittsburgh A KATHERINE/ROBERT MINES UNKNOWN , near medium Pittsburgh B ROBINSON RUN NO 2 CHRISTOPHER COAL CO , , near very large Pittsburgh D VALLEY CAMP NO 5 VALLEY CAMP COAL , , near very large Pittsburgh A No. 26 Consolidation Coal Co , , near very large Pittsburgh A CONSOL NO 24 & 73 CONSOLIDATION COAL , , near very large Pittsburgh A Booth and Brady Mines River Seam Coal Co , , near very large Pittsburgh A CONSOL NO 38 CONSOLIDATION COAL , , near very large Pittsburgh A CONSOL NO 22 & 34 CONSOLIDATION COAL , , near medium Pittsburgh A VALLEY CAMP NO 1 VALLEY CAMP COAL , , near very large Pittsburgh A COMPASS NO 3 CLINCHFIELD COAL , , near very large Pittsburgh A COMPASS NO 2 CLINCHFIELD COAL , , near very large Pittsburgh A MOUNTAINEER COAL NO 43,63 & 92 MOUNTAINEER COAL , , near very large Pittsburgh B WILLIAMS NO 98 CONSOLIDATION COAL , , near very large Pittsburgh A Humphrey No. 7 Consolidation Coal Co. U , near very large Pittsburgh A Humphrey No. 7 Consolidation Coal Co. U , , near very large Pittsburgh A Windsor Mine Windsor Coal Company EM , , near very large Pittsburgh A VALLEY CAMP NO 3 VALLEY CAMP COAL NDE , , near very large Pittsburgh A PURSGLOVE NO 15 CONSOLIDATION COAL , , near very large Pittsburgh A JORDAN NO 93 CONSOLIDATION COAL , , near very large Pittsburgh A ARKWRIGHT NO 1 CONSOLIDATION COAL , , near very large Pittsburgh A OSAGE NO 3 CONSOLIDATION COAL , , near very large Bakerstown A DAVIS COAL & COKE NO 22 DAVIS COAL & COKE above small Bakerstown A ALPINE ISLAND CREEK COAL , , above medium Bakerstown A Unknown Unknown , , near very large Upper Freeport A BIG JOE PRESTON ENERGY above large Upper Freeport A BURK INDUSTRIAL COLLIERIES above large Upper Freeport A AUSTEN MINE UNKNOWN above very small Upper Freeport A T & T NO 3 T & T FUELS above small Upper Freeport A SQUIRES CREEK NO 1 SQUIRES CREEK COAL above very large Upper Freeport A LOUIS HOUCK-REIDLER BROTHERS COAL above very small Upper Freeport A RUTHBELL COALS NO 1 RUTHBELL COALS above medium Upper Freeport A TUNNELTON COOP COAL FIELD TUNNELTON COOPERATIVE COAL , above medium Upper Freeport A LAUREL RUN MINING NO 1 PORTAL LAUREL RUN MINING , , above very large Upper Freeport B BANNER UNKNOWN , , above large Upper Freeport A METTIKI E MINE METTIKI COAL LLC U , U , , above large Upper Freeport A Richard Mine Bethlehem Mines Corp , , above very large Upper Freeport A MASONTOWN COAL FIELDS INDUSTRIAL COLLIERIES , , above large Upper Freeport E BIG JOE MINE PRESTON ENERGY near very large Upper Freeport A T & T ENERGY NO 1 T & T ENERGY , near very large Upper Freeport C IRONA NO 1 UNKNOWN , , near very large Upper Freeport A FAIRFAX FUEL NO 1 FAIRFAX FUEL , near very large Upper Freeport A NORTH BRANCH ISLAND CREEK COAL , , near very large Upper Freeport A POTOMAC ISLAND CREEK COAL , , near very large Upper Freeport A Unknown Unknown , , near very large Footprint (acres) Storage (MMGal) Drainage position Extent of partial C-2

55 POTENTIALLY PARTIALLY FLOODED UNDERGROUND MINES >500 ACRES IN AREA Seam name Mine ID Mine name Company name State permit number Average coal bed thickness (inches) flooding Middle Kittanning A BADGER NO 14 BADGER COAL , , near large Middle Kittanning F BADGER NO 13 BADGER COAL , , near large Middle Kittanning A TYGART VALLEY EASTERN ASSOCIATED COAL , , near very large No. 5 Block A BARBARA LYNN NO 4 GOLD RIVER MINING above small No. 5 Block A LAUREL CREEK NO 4 LAUREL CREEK COAL CO U above large No. 5 Block A UNION CARBIDE NO 7 UNION CARBIDE above large No. 5 Block A WARNER COLLIERIES NO 106 KANAWHA & HOCKING COAL & COKE above small No. 5 Block A BLUE PENNANT NO 16 GLOGORA COAL above small No. 5 Block J Hardback No 1 & 3 Unknown , above small No. 5 Block A HAMPTON NO 6 WESTMORELAND COAL above medium No. 5 Block A MORRIS FORK NO 5 & 6 UNION CARBIDE above small No. 5 Block A ARGUS NO 7 ARGUS MINING CO U above large No. 5 Block B UNKNOWN UNKNOWN , above large No. 5 Block A RICH RUN NORTH SIDE ELK RIVER COAL & LUMBER , above large No. 5 Block A CAMPBELL CREEK CAMPBELL CREEK COAL , , above small No. 5 Block A TINY CREEK NO 2 COAL RIVER MINING LLC U B near large Stockton A WYATT WYATT COAL , above small Stockton A CHESTERFIELD NO 1 OMAR MINING above large Stockton A CAMPBELLS CREEK NO. 6 CATENARY COAL COMPANY U B above large Stockton A BROOKS RUN NO 5 BROOKS RUN MINING CO U D , above large Stockton A WHITNEY AND MABLE MINES PRINCESS SUSAN COAL above very small Stockton B UNKNOWN UNKNOWN , above medium Stockton B NO 6C & OLD MINE NO 2 UNKNOWN , above medium Stockton A CAMPBELLS CREEK NO.4 POINT MINING, INC. U A , , above large Stockton A UNKNOWN UNKNOWN , , above medium Stockton B Boone East Development Boone East Development Co , , above large Stockton A VALLEY CAMP NO 12A VALLEY CAMP COAL , , above large Stockton A SPARTAN NO 130 SPARTAN MINING DBA MAMMOTH U A , , above medium Stockton A STOCKTON SPARTAN MINING DBA MAMMOTH U A , , above large Stockton A VALLEY CAMP NO 15A VALLEY CAMP COAL , , near large Coalburg C BROOKS RUN MINING NO 9A BROOKS RUN MINING U A above large Coalburg B UNKNOWN UNKNOWN above small Coalburg A VALLEY CAMP NO 36 VALLEY CAMP COAL above large Coalburg A VALLEY CAMP NO 9C & 30 VALLEY CAMP COAL above medium Coalburg A COALBURG NO.6 HOBET MINING, INC. U A above medium Coalburg A LAUREL CREEK MINING NO 6 LAUREL CREEK MINING above medium Coalburg A JUNIOR FREEPORT HOWARD COLLIERIES above medium Coalburg A BROOKS RUN NO 10A BROOKS RUN MINING U A above large Coalburg A BLACK QUEEN ELK RUN COAL 10840S above medium Coalburg B COALBURG NO 1 CENTRAL APPALACHIAN COAL above medium Coalburg A COALBURG MINE KANAWHA EAGLE COAL U , above large Coalburg C NO 109A UNKNOWN above small Coalburg A MINE NO. 4A EAST BROOKS RUN MINING CO., LLC U above very large Coalburg A WARNER COLLIERIES NO 102 WARNER COLLIERIES above small Coalburg A PAMMLID NO 5B PAMMLID COAL D above large Coalburg A LEXIE NO 8A LEXIE COAL D above large Coalburg A LAUREL CREEK COALBURG SPARTAN MINING U above very small Coalburg A RED OAK COPPERAS COAL U above medium Coalburg B ONEIDA NO 11 UNKNOWN above medium Coalburg A DIABLO NO 2 MINE DIABLO COAL U C above large Coalburg V Birch 2A Fossil Fuels inc , above large Coalburg A BLACK KNIGHT II SOUTH ELK RUN COAL U above medium Coalburg L LEFT FORK NO 1 UNKNOWN UO above large Coalburg F Northern Marrowbone Creek Marrowbone inc U above medium Coalburg A VALLEY CAMP COAL VALLEY CAMP COAL , above small Coalburg A MINE NO. 1 RAMA DEVELOPMENT CO., INC. U , above very small Coalburg K UNKNOWN UNKNOWN UNKNOWN , , above small Coalburg B Mine No. 4A West Brooks Run Mining Co., LLC D-10767C , , above very large Coalburg A EUROPA MINE I.O. COAL CO U A-A , , above medium Coalburg A LAUREL CREEK NO 1 LAUREL CREEK COAL CO INC U A , , above large Coalburg A MINE NO.1 JACOB MINING CO., LLC U-5785-AA-A , , above large Coalburg A BIG BRANCH ( AKA SPRUCE CREEK NO. 1) EASTERN MINGO COAL CO. U-5785-A , , above large Coalburg A BIG MOUNTAIN NO 16 PINE RIDGE COAL CO U , , above large Coalburg A KIAH CREEK NO 1 PEN COAL near large Coalburg A PEN COAL NO 2 PEN COAL U near large Winifrede A BETHLEHEM MINES NO 117 BETHLEHEM MINES above large Winifrede B UNKNOWN UNKNOWN above small Winifrede A Mine No. 1 Webb Coal Mining Co above medium Winifrede A CARBON FUEL NO 31 UNKNOWN above medium Winifrede C UNKNOWN UNKNOWN above medium Winifrede A DETROIT NO 2 DETROIT MINING UNKNOWN above medium Winifrede A BUFFALO NO 4 ZAPATA COAL above medium Winifrede A Van Mine Youghiogheny & Ohio Coal Co above large Winifrede A DETROIT NO 1 DETROIT MINING UNKNOWN above medium Winifrede A QUEEN ELK RUN COAL above large Winifrede A BIG MOUNTAIN NO 8 UNKNOWN UNKNOWN above medium Winifrede D CARBON FUEL NO 5 UNKNOWN above small Winifrede A UNKNOWN UNKNOWN U above large Winifrede A MONTCOAL NO 1 ROWLAND LAND , above small Winifrede A CHESAPEAKE & OHIO CHESAPEAKE & OHIO above medium Winifrede B JACKS BR INDEPENDENCE COAL above large Winifrede A HAR-MAT NO 2 HAR-MAT COAL UO above large Winifrede B VALLEY CAMP NO 9 VALLEY CAMP COAL above medium Winifrede A VALLEY CAMP NO 2B VALLEY CAMP COAL , above large Winifrede A WYATT WYATT COAL , above medium Winifrede A ANCHOR NO 1 & 2 ANCHOR COAL , above small Winifrede B UNKNOWN UNKNOWN , above small Winifrede A Mine No. 4 Central Appalachian Coal Co , , above large Winifrede A BISHOP INDEPENDENCE COAL , , above very large Winifrede K WEST MINE UNKNOWN UNKNOWN , , above large Winifrede A MINE NO. 5 C & S MINING CORP. EM , , above medium Winifrede A VAN BUNCH MINING UNKNOWN , , above medium Winifrede A ARMCO STEEL NO 8 ARMCO STEEL , , above small Winifrede A Acme No. 1 Truax-Traer Coal Co , , above medium Peerless A X-CELLO NO 1 X-CELLO above small Peerless A No. 32 Mine Red Jacket Coal and Coke Co. Inc above small Peerless A BEECH CREEK NO 1 AMES COAL above small Peerless C PRINCESS COAL NO 3 UNKNOWN above large Peerless A PRITCHARD D H PRITCHARD D H CONTRACTOR , above large Peerless A OBE NO 2 OBE MINING above medium Peerless B IMPERIAL COLLIERY NO 14 UNKNOWN above medium Footprint (acres) Storage (MMGal) Drainage position Extent of partial C-3

56 POTENTIALLY PARTIALLY FLOODED UNDERGROUND MINES >500 ACRES IN AREA Seam name Mine ID Mine name Company name State permit number Average coal bed thickness (inches) flooding Peerless A POWELLTON NO 11 POWELLTON COAL above small Peerless A RIVERTON NO 18 RIVERTON COAL , above small Peerless A SNAP CREEK NO 6 SNAP CREEK COAL , above small Peerless A CRYSTAL BLOCK NO 10 CRYSTAL BLOCK COAL & COKE , above small Peerless A CEDAR POINT NO 1 CEDAR POINT MINING A above large Peerless A WHITE QUEEN MARFORK COAL U A , above large Peerless A IMPERIAL COLLIERY NO 8 IMPERIAL COLLIERY , above large Peerless A Mine No. 26 Island Creek Coal Co , above large Peerless C HOLLY WYATT-SEANOR COAL , above large Peerless A FREEDOM PEERLESS EAGLE COAL , above very large Peerless A DANIELS BRANCH NO 1 DANIELS BRANCH COAL U , above medium Peerless A CARBON FUEL NO 9-8 DRIFT CARBON FUEL , , above large Peerless A No.32 Mine Red Jacket Coal and Coke Co. Inc , , above small Peerless H Mine No. 2 Lando Coal Corp , , above medium Peerless F Unknown Puritan Coal Corp , , above very large Peerless A PEABODY NO 10A PEABODY COAL COAL , , above small Peerless A Mine #2 PRINCESS COALS , , above large Peerless A UPPER CEDARGROVE NO 18 & 19 UNKNOWN , , above large Peerless A MOUNTAINEER MINGO LOGAN COAL U , , above very large Peerless A BETHLEHEM MINES NO 111 BETHLEHEM MINES , , above large Peerless I CARBON FUEL NO 8 UNKNOWN , , above medium Peerless A W P NO 15 W P COAL , , above medium Peerless G Unknown Lando Coal Corp , near very large No. 2 Gas A Mine No. 1 Buffalo Chilton Coal Co , above large No. 2 Gas A FIELDS CREEK NO 1 UNKNOWN above large No. 2 Gas A Elkay Mine No. 1, Merril Coal No. 2, 3, Taplin, Ut Elkay Coal, Merril Coal, Utilities Coal above large No. 2 Gas A ROCKHOUSE NO 2 ROCKHOUSE CREEK DEVELOPMENT U D above medium No. 2 Gas B LONG BRANCH ENERGY NO 14 LONG BRANCH ENERGY above small No. 2 Gas A W VA COAL & COKE NO 19L W VA COAL & COKE above small No. 2 Gas A LOW GAP POWELLTON NO.1 MINE MARFORK COAL COMPANY, INC. U above small No. 2 Gas D Mine No. 15 Island Creek Coal Co above small No. 2 Gas A Taplin No. 2 &3 H&B Coal Co above large No. 2 Gas A NEWTOWN ENERGY NO 1 NEWTOWN ENERGY above large No. 2 Gas C Mine No. 3 Island Creek Coal Co above medium No. 2 Gas E MEADOR ENERGY NO 1 MEADOR ENERGY above large No. 2 Gas A MARY FRANCES NO 23 MARY FRANCES COAL , above small No. 2 Gas A Thacker Mines Ames Coal Co above small No. 2 Gas A Unknown Unknown above medium No. 2 Gas A MALLORY NO 1 MALLORY COAL , above small No. 2 Gas A Merrill C. Co. #1 Merrill C. Co above small No. 2 Gas F NO 3 MINE Unknown above small No. 2 Gas B UNKNOWN UNKNOWN , above small No. 2 Gas B Mine No 2 Island Creek Coal Company above small No. 2 Gas A ROWLAND NO 11 CLEAR FORK COAL S above small No. 2 Gas L UNKNOWN UNKNOWN above small No. 2 Gas A LOW GAP POWELLTON NO 2 MARFORK COAL , above small No. 2 Gas C No. 5 Anchor Coal Co , above small No. 2 Gas A INDIAN CREEK NO 1 CANNELTON INDUSTRIES , above large No. 2 Gas A ISLAND CREEK NO 16 ISLAND CREEK COAL above medium No. 2 Gas J Mine No. 11 Island Creek Coal above medium No. 2 Gas B FILE MAP FILE MAP (USGS P-5-41A) above small No. 2 Gas G NO 1 MINE UNKNOWN above medium No. 2 Gas A BIRCH FORK MINE MARFORK COAL COMPANY, INC. U , above small No. 2 Gas B Unknown Unknown , above medium No. 2 Gas F LOUP CREEK LOUP CREEK CO POCA LAND MAP , above small No. 2 Gas A OUTPOST WEST MINE MARSHFORK COAL COMPANY U A , above medium No. 2 Gas A SHUMATE POWELLTON MINE MARFORK COAL COMPANY, INC. U B , above large No. 2 Gas G Unknown Unknown , above large No. 2 Gas K Mine No. 12 Island Creek Coal Co above small No. 2 Gas H UNKNOWN UNKNOWN , above small No. 2 Gas A HIAWATHA RALEIGH WYOMING MINING , , above small No. 2 Gas A PEABODY NO 10B PEABODY COAL COAL , , above small No. 2 Gas A BETHLEHEM MINES NO 116 BETHLEHEM MINES , , above large No. 2 Gas B POWELLTON NO 1 POWELLTON COAL , , above very large No. 2 Gas F UNKNOWN UNKNOWN , , above small No. 2 Gas F FILE MAP FILE MAP (USGS P-5-41A) , , above small No. 2 Gas B DAVIDSON NO 1 UNKNOWN , , above large No. 2 Gas A ISLAND CREEK NO 17 ISLAND CREEK COAL , , above large No. 2 Gas A Mine No. 8 Jr. Red Jacket Mining , , above medium No. 2 Gas D CANNELTON INDUSTRIES NO 105 (2, 5, 5A) CANNELTON INDUSTRIES , , above very large No. 2 Gas A MINE NO 2 Unknown , , above large No. 2 Gas A Mine No. 1 ISLAND CREEK COAL , , above very large No. 2 Gas H UNKNOWN UNKNOWN , , above small No. 2 Gas A W P NO 5 W P COAL , , above very large No. 2 Gas A HARRIS NO 2 EASTERN ASSOCIATED COAL , , above very large No. 2 Gas A LADY DUNN NO 105 CANNELTON INDUSTRIES , , above very large No. 2 Gas A LORADO NO 1 & 2 UNION COAL , , above medium No. 2 Gas G Mine No. 7 Island Creek Coal Co , , above very large No. 2 Gas A WHITE KNIGHT/LOGAN ELK RUN COAL U , , above very large No. 2 Gas A PARAGON AMHERST COAL , , above large No. 2 Gas A ARMCO INC NO 7 ARMCO INC , , above large No. 2 Gas A KOPPERSTON NO 2 EASTERN ASSOCIATED COAL , , above small No. 2 Gas A EAGLE ENERGY NO 1 EAGLE ENERGY near large No. 2 Gas A BELLS CREEK MINE NO 1 TERRY EAGLE COAL CO U near large No. 2 Gas A RUBY ENERGY LCG SPARTAN MINING CO U A near large No. 2 Gas G UNKNOWN UNKNOWN near medium No. 2 Gas A LONG BRANCH NO 23 LONG BRANCH ENERGY U near very large No. 2 Gas A VANTAGE NO 1 VANTAGE MINING EM , near very large No. 2 Gas G CANNELTON COAL NO 7 CANNELTON COAL near large No. 2 Gas A KERMIT NO 1 KERMIT COAL , near very large No. 2 Gas A OLD BEN NO 20 OLD BEN COAL , near very large No. 2 Gas B QUINLAND MINE UNKNOWN , , near very large No. 2 Gas B MONA, ROSSMORE UNKNOWN , , near medium No. 2 Gas B EAGLE ENERGY NO 132 EAGLE ENERGY , , near very large No. 2 Gas P Mine No. 21 Island Creek Coal Co , , near very large No. 2 Gas A LIGHTFOOT NO 1 EASTERN ASSOCIATED COAL , , near medium No. 2 Gas M Mine No. 14 Island Creek Coal Co , , near large No. 2 Gas A LONG BRANCH NO 18 BELT LONG BRANCH ENERGY U , , near large No. 2 Gas S Mine No. 24 Island Creek Coal Co , , near very large No. 2 Gas O Mine No. 20 Island Creek Coal Co , , near very large No. 2 Gas T Mine No. 27 Island Creek Coal Company , , near very large Footprint (acres) Storage (MMGal) Drainage position Extent of partial C-4