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2.05.3 <br />Run-off from the vent shaft pad does not go through a treatment facility such as a <br />sediment pond. Run-off from this pad will be filtered through one of two sediment <br />fences. Sediment fence #1 is 130-feet long with a tie back of 5-feet. Sediment <br />fence #2 is 30-feet long with a tie back of 5-feet. Design of the sediment fences is <br />presented in Volume I I I, Exhibit 8 beginning on page Exh-8 - 87. Flow will be routed <br />to the sediment fences with a series of berms as shown on Map 35. <br />Up to three gob vent boreholes GVBs are required over each longwall panel. <br />Additionally, exploratory holes will be drilled within the permit boundary. Run-offfrom <br />the related drill pads may not go through a treatment facility such as a sediment <br />pond. Run-off from the pads that does not report to a sediment pond will be filtered <br />through a sediment fence. Design of sediment fences for three drill pad <br />configurations are presented in Volume III, Exhibit 8 beginning on page Exh-8 -107. <br />The three typical drill pads are designed on a 3H:1 V slope, 5H:1 V slope and 10H:1 V <br />slope. The typical sediment fence configuration, berms and ditches for the various <br />slopes and pad sizes are shown on Maps 36 and 36a. <br />The following table lists each drill hole and its design drill pad. <br />Drill Holes <br />Original Ground Slope Information <br />Identifier Hole Name Slope Identifier Hole Name Slope <br />063 GVB-D-28 10:1 083 Geo-TCH-01 10:1 <br />041 GVB-D-7A 3:1 084 Geo-TCH-02 10:1 <br />042 GVB-0.5A 3:1 085 Geo-TCH-03 5:1 <br />044 GVB-D-48 5:1 087 GVB-D-SC 10:1 <br />051 GVB-WD•3C 5:1 090 GVB-D-BB 5:1 <br />052 GVB-WD-3B 3:1 092 GVB-D-96 3:1 <br />053 GVB-W0.26 3:1 094 GVB-D-BA&9A 3:1 <br />054 GVB-WD-3A 10:1 096 IP-99-16 10:1 <br />055 GVB-WD-2A 10:1 102 IP-99-11 3:1 <br />059 GVB-D-0C 10:1 102 IP-99-11 3:1 <br />060 GVB-D-58 5:1 120 KM-3 3:1 <br />061 GVB-D-5C 10:1 129 P-B-Bum-22 10:1 <br />062 GVB-D-6C 5:1 130 P-B-Burn-23 10:1 <br />064 GVB-D-6A 5:1 131 P-TC-03-01 10:1 <br />065 GVB-D-66 3:1 132 P-TC-03-02 10:1 <br />066 GVB-D-76 5:1 133 P-TC-03-03 10:1 <br />068 DH-57 10:1 136 P-TC-03-06 10:1 <br />070 DH-58 10:1 138 14 Geotech N/A <br />075 GVB-D-7C 10:1 139 3 Alluvial Wells N/A <br />077 GVB-D-5D 5:1 141 GVB-BI-A,B&C 10:1 <br />078 GVB-WD-1A 10:1 142 B-Bum-24 N/A <br />050 GVB-WD-2C 5:1 143 TC-05-04 N/A <br />080 GVB-WD-iB 10:1 143 GVB-62-A,B&C&83-A,B NIA <br />MR-55 2.05 - 34 - 04/05 <br />A~PRovE~ <br />6~~~05 <br />