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yards (at a 12 -inch salvage depth). Since, however, the soil will be progressively removed, windrowed, and then <br />almost immediately replaced, as pipeline construction proceeds, this soil salvage volume is not reflected in Table <br />49A — Soil Stockpile Summary. <br />10 -East Emereency Air Borehole (MR15-289) — Prior to construction of the l0E Emergency Borehole pad, site <br />preparation will involve removal of any large vegetation and stripping and stockpiling of other vegetation, soil, and <br />organic materials. The pad is located on a minor ridgeline where soil development is limited, so TC will recover <br />and salvage a maximum of 12 inches of soil from the pad disturbance areas. With a total pad area of approximately <br />1.2 acres, a maximum volume of approximately 1,900 cubic yards of soil material will be salvaged and placed in <br />stockpile for future use in reclaiming the site. One or more temporary soil stockpile(s) will be established on the <br />north side of the pad area. The natural vegetative materials incorporated into the soil, and seeding with the topsoil <br />stockpile stabilization seed mixture, will stabilize and protect the stockpiled soil materials. Soil salvage volumes <br />are indicated on Table 49A. <br />13 -Left Outby Utility Borehole (MR15-291) — Construction of the light -use road and pad for the 13LT Outby <br />Utility Borehole will involve removal of any large vegetation and stripping and stockpiling of other vegetation, soil, <br />and organic materials. The road and pad are located on a low -gradient sidehill where TC will recover and salvage a <br />maximum of 18 inches of soil from the road and pad areas. With a pad area of approximately 1.0 acres, and a road <br />corridor of approximately 2.4 acres, a maximum volume of approximately 8,230 cubic yards of soil material will be <br />salvaged and placed in stockpile for future use in reclaiming the site. A temporary soil stockpile(s) will be <br />established on the northwest side of the pad area. The natural vegetative materials incorporated into the soil, and <br />seeding with the topsoil stockpile stabilization seed mixture, will stabilize and protect the stockpiled soil materials. <br />Soil salvage volumes are indicated on Table 49A. <br />9 -East Utility Borehole Installation (MR16-296) - Light -use road and pad construction for the 9 -East Utility <br />Borehole Installation will involve removal of any large vegetation and stripping and stockpiling of other vegetation, <br />soil, and organic materials. The road and pad are located on a low -gradient sidehill, with a pad area of <br />approximately 2.1 acres, and a road corridor of approximately 1.6 acre. TC will recover and salvage up to 2 feet of <br />soil from the road and pad areas, resulting in recovery and stockpiling of a maximum volume of approximately <br />11,880 cubic yards of soil material for future use in reclaiming the site. Note that, based on available soil mapping <br />information and descriptions, soil depths in the project area vary, but may be up to 38 -inches in thickness. TC <br />proposes to recover up to 24 -inches of soil, both in order to minimize site disturbance and because replacement of <br />24 -inches of soil material is more than adequate to support effective revegetation efforts in this area. Temporary <br />soil stockpiles will be established at reasonable intervals along the road and adjacent to the pad area. The natural <br />vegetative materials incorporated into the soil, and seeding with the topsoil stockpile stabilization seed mixture, will <br />stabilize and protect the stockpiled soil materials. Soil salvage volumes are indicated on Table 49A. <br />TR16-86 2.05-84.14 11/21/16 <br />