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1 <br /> <br /> <br /> <br />II <br />i~ <br /> <br /> <br /> <br />1 <br />1 <br />1 <br />1 <br /> <br /> <br />1 <br /> <br />1 <br />The construction of approximately 9.7 miles of new "road" will be <br />required. This road construction is intended as temporary <br />access, and will be fully reclaimed when no longer needed. These <br />access routes are identified on Map 1 and Table 2. These <br />accesses are generally located on pasture and range land and on <br />level or only moderate grades. Unless excessive precipitation <br />dictates, access road preparation will be limited to a general <br />leveling of the ground to allow ease of access to and from the <br />site. In the event that preparatory work is required, the <br />available topsoil (typically 18 - 24 inches) will be bladed to <br />the side of the road in a windrow for redistribution during <br />reclamation. It is anticipated that this leveling activity will <br />be minimal. Experience from similar projects in the area has <br />shown that reclamation efforts are enhanced if minimal <br />preparatory work is conducted on the new roads. In the event of <br />mid-winter drilling when the ground is frozen, excessive snow <br />would be bladed to the side without disturbance of the soil. <br />Drill Pad Construction: <br />Drill pad dimensions will be kept to a nominal size of 100 feet <br />by 100 feet. Topsoil will be stripped to a depth of <br />approximately 18-24 inches depending upon the quantity available. <br />The topsoil will be stockpiled on the uphill side of the pad, <br />clearly separated from the pad and any subsoil. A "topsoil" sign <br />will clearly identify this material. Sediment control for the <br />topsoil stockpile will include the placement of a silt fence, or <br />a totally enclosing berm approximately one foot in height, <br />surrounding the topsoil stockpile. <br />After stripping and stockpiling of topsoil, minor leveling will <br />be conducted to accommodate the drill equipment. As illustrated <br />on Map 1, drill sites have been located on gentle slopes or on <br />bench areas in order to minimize leveling requirements. Mud pits <br />will be constructed within the stripped area. Generally two or <br />three pits are required with typical dimensions being 10 feet <br />long, five feet wide and six feet deep. The size of the pits are <br />dependent upon the anticipated drilling depths and conditions. <br />The ground material excavated from the pits will be stockpiled on <br />the stripped area, as to protect from topsoil contamination. All <br />drilling fluids will be contained within the mud pits, and <br />drilling supplies will be contained within the area of the drill <br />pad. If any hole would require being twinned, it is anticipated <br />that the same drill pad area will suffice, with only minor <br />elongation of the pad occurring. Sediment control measures to <br />control runoff from the drill pads will consist of a similar <br />sediment berm as described for the topsoil stockpile, placed <br />around the downslope portion of the pad. In the event that the <br />drill pad is on level ground, a totally enclosed berm will be <br />constructed around the pad to assure that surface water runoff is <br />contained. <br />23 <br /> <br />