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<br />750 to 850 feet, depending on which location is selected. Installation of the borehole will involve
<br />placement of construction erosion controls (silt fence and/or straw wattles), r emoval and
<br />stockpiling of soil materials and the limited vegetation f rom the existing pad area and road
<br />margins, minor fill placement (if necessary) and grading to establish a level drill pad, placement of
<br />gravel surfacing at the access point, excavation of a temporary cuttings pit on the drill pad, and
<br />drilling and casing of the borehole. Upon completion of drilling and casing operations, the cuttings
<br />pit will be allowed to dry -out, material excavated from the pit will be replaced and graded, and t he
<br />pad surface will be graveled to control erosion and sediment and provide an all-weather operating
<br />surface. The completed borehole installation will include an access road, soil material stockpiles; a
<br />leveled pad (maximum 250’ x 170’), an 18 -inch ce mented surface casing ( 60 feet deep), a 12 -
<br />inch cased bore hole, and a covered 8 -foot diameter CMP manhole with lightning protection.
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<br />The pipeline installation will involve removal and windrowing of soil materials; trenching in most
<br />areas; placement of suitable bedding materials; placement, connection, a nd pressure testing of the
<br />pipeline; backfilling and compaction of suitable fill materials around and over the pipeline;
<br />backfilling and compaction of the trench; re -grading; replacement of soil ma terials; and re -
<br />vegetation of all disturbed areas. The pipeline disturbance will occur within the same disturbance
<br />corridor previously used for installation of the Fish Creek Water transfer pipeline and is entirely
<br />within the disturbed right-of -way of County Road 27 and the paved entrance road into the Foidel
<br />Creek Mine. The pipeline will be a double walled HDPE pipe system, with a 8 -inch carrier pipe
<br />inside a 12 -inch containment pipe, buried approximately 5 -feet deep, and extending to the south
<br />and east a maximum of approximately 7,720 fee t between the selected borehole and the junction to
<br />the 1 - MN Thickener Underflow Pipeline leading from the Washplant facility to the existing 1 -
<br />MN Thickener Underflow borehole. Electronic moisture sensors in the interstice between the
<br />inner and outer pipe connected to the pump controls and shut-off valves will provide for timely
<br />leak detection and spill prevention. Access/ Inspection manholes will be established at key points
<br />along the pipeline route . It is anticipated that a maximum of s ix manholes will be placed within
<br />the pipeline disturbance corridor.
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<br />At the time of final reclamation, inspection manholes will be removed or demolished to 3 -feet
<br />below grade, and the pipeline will be cut-off below grade, capped, and abandoned in place. The
<br />borehole will be plugged and sealed, using the methods described in the permit for boreholes. At
<br />that time, any necessary maintenance of re -graded areas will occur, along with any necessary
<br />supplemental seeding. Detailed design, operations, and reclamation information for the proposed
<br />activities, is provided as both revised permit text and exhibits; and revised maps, reflecting the
<br />location and configuration of the new facilities, pipeline, and road. The applicant is proposing
<br />additional surface disturbance outside of the area currently approved for disturbance.
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<br />The underground coal mining opera tion is on land located approximately 23 miles Southwest of
<br />Steamboat Springs, Colorado. The permit area is further described as follows:
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<br />In portions of Sections 7, 8, 9, T4N, R86W; Sections 32 and 33, T6N, R86W; Sections 23, 24, 25,
<br />26, 27, 34, 35 and 36 in T5N, R87W; and all of T5N, R86W with the exception of Sections 34, 35,
<br />and 36.
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