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<br />Access to locations PDH-3 and PDH-17 will be provided utilizing <br />approximately 3500 feet of existing "jeep trails". These trails <br />' may require minor upgrade to allow for access. No earth moving <br />other than possibly minor leveling is anticipated. Any topsoil <br />removed during the upgrading will be windrowed to the uphill side <br />' for later redistribution. <br />Only short access corridors may be necessary in order to locate <br />the drill sites off of the existing roads. The length of the <br />' access corridors are expected to be less than 100 feet. It is <br />proposed that overland travel will occur to access the drill pad, <br />minimizing disturbance. In the event that leveling is necessary <br />' for access, all available topsoil will be salvaged and windrowed <br />to the uphill side of the access route. This topsoil will be <br />redistributed during the reclamation. <br />1 <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. As stated in the "Adequacy <br />Review Response" of February 26, 1996,: "Sediment control for the <br />topsoil stockpile will include the placement of a totally <br />enclosing berm approximately one foot in height, surrounding the <br />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. As stated in the "Adequacy <br />Review Response" of February 26, 1996,: "Sediment control <br />measures to control runoff from the drill pads will consist of a <br />similar sediment berm as described for the topsoil stockpile, <br />placed around the downslope portion of the pad. In the event <br />that the drill pad is on level ground, a totally enclosed berm <br />will be constructed around the pad to assure that surface water <br />runoff is contained". <br />1 <br /> <br />