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EXHIBIT 19
<br />SEDIMENT DESIGN SPECIFICATIONS
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<br />VOLUME 2
<br />1) Allen Mine Hydrologic Balance of Surface Runoff
<br />2) Thickener Discharge Plan, 5/31/85 and 3/18/87
<br />2) Results of Annual Pond Survey -Ponds 006 and 007, 11/10/87
<br />4) Refuse Area Road Design, 9/93
<br />5) Miscellaneous Drainage Supplement
<br />West Portal Containment Areas 1 and 2 - no date
<br />West Portal Culvert Data C21 through C25, 3/19/87
<br />MR-40 Culverts 43 and 44, 1/18/92
<br />TR-23 SAE Demonstrations for Seven Sites, 2/19/92
<br />West Portal Substation, 9/26/91
<br />West Portal Water Tanks Area 1, 9/26/91
<br />West Portal Water Tanks Area 2, 9/26/91
<br />West Portal Core House, 6/18/91
<br />East Portal Water Tanks, 5/20/91
<br />MR-43 Ditch D 17 with D 33 Included, 3/27/92
<br />TR-25 Containment Area 1, 6/11/92
<br />East of Refuse Belt, 6/20/92
<br />West of Refuse Overflow, 6/20/92
<br />Containment Area 2, 6/11/92
<br />West of Refuse Belt 6/20/92
<br />TR-30 New Elk Pumphouse, West Portal Area SAE, 10/14/93
<br />Culvert 49 West of New Elk Hoist House, 10/14/93
<br />D23A, North Road Ditch ,North of Hoist House, 10/15/93
<br />D23B, North Road Ditch, South of Hoist House, 10/15/93
<br />SAE for Contaminated Topsoil, 10/15/93
<br />TR-31 Ditch 24 8 24A, Culverts C34, C35, C36, C46, C47, 12/3/93
<br />Culvert C48 on Ditch D26, 12/3/93
<br />TR-33 D18 from Head to 960' West, 10/8/93
<br />SAE Demo, Topsoil Pile 2, NW of Plant, 11/29/93
<br />TR-35 East Side of Dev Coal Waste Pile SAE, 7/6/94
<br />TR-38 Refuse Area Ditch D35C and Culvert C58, 3/7/95
<br />Refuse Area Ditch D36, 3/7/95
<br />Refuse Area Ditch D35D, 3/9/95
<br />Refuse Area Ditch D35A, 3/9/95
<br />Refuse Area Culvert C57, 3/23/95
<br />6) Ditch 17B and Culvert C50, 12/2/93
<br />VOLUME 3
<br />7) TR-27 and NOV C-93-037, 11/30/93
<br />8) TR-39 Drainage Calculations, 5/9/95
<br />9) Pond 004, 1995 As-built Survey (TR-39), 9/26/95
<br />10) New Elk D4, South Side of Dev Waste Pile, 8/29/97
<br />11) New Elk Dev Waste Pile, D10, 100-Yr Ditch, 8/29/97
<br />12) Postmining Drainage Calculations, 10/23/97
<br />13) MR-87 Pond 001 As-built Survey, 7/13/2007
<br />(Revised MR-87 9/27/2007)
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