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PERMFILE45438
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PERMFILE45438
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Last modified
8/24/2016 10:47:48 PM
Creation date
11/20/2007 12:21:52 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2000016
IBM Index Class Name
Permit File
Doc Name
Majority of Permit Application
Media Type
D
Archive
No
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<br />srs <br />EXHIBIT E <br />RECLAMATION PLAN <br />The reclamation plan for the Riverbend Operation is two water storage reservoirs. <br />The access roads into the site from Weld County Road 8 and Weld County Road 6 and internal <br />roads will remain and used by vehicles for maintaining the reservoirs and oil wells. The culvert <br />over the McCann Seep will remain for access. An unimproved road around both reservoirs will <br />also remain. <br />Phasi°e <br />Reclamation will be concurrent with mining and therefore will be completed in phases. <br />Lafarge plans to mine to the claystone bedrock. The claystone is eroded on its surface and can <br />be moved by a dozer. However, some azeas might not contain marketable sand and gravel down <br />to the bedrock. This azea will remain exposed until the reservoir is filled with water. <br />Scrapers will be used to place overburden and claystone bedrock material along the reservoir <br />perimeter. Wheel compaction by scrapers will primarily be used to acquire the compaction <br />specification. Quality control will be used during lining operations to determine that compaction <br />is being achieved. This will include an evaluation and possible changes in the water <br />applications, lift thickness, and compaction method (wheel rolling, sheep's foot compactor, etc.) <br />During initial stages of the liner construction, several in-place tests will be done to determine if <br />the compaction method is sufficient to meet the standard proctor design. Thereafter Lafarge will <br />be conducting regular on-going compaction testing. <br />Reclamation begins as Cell 2 is mined, the overburden will be used immediately to backfill the <br />mined portion. As mining progresses, Lafarge will closely follow with backfilling of overburden, <br />capping with topsoil, and vegetating [o minimize the amount disturbed at any one time. Once the <br />backfilling gets to the proposed reservoir shoreline material will be graded to a 3H:1 V slope. <br />After the two reserviors have been reclaimed any remaining overburden and topsoil will be used <br />to cap the sediment basin. If there is not sufficient material to cap the settling basin, then the silts <br />accumulated from the washing process in the basin will provide a growing medium for plants. <br />Ground water may be exposed to encourage the development of wetlands in this area. <br />Processing Plant Site/Equipment <br />The processing plant equipment will be located on the south side of the property but will be <br />progressively relocated towazds the southern property boundary as Cell 5 is mined. The concrete <br />foundations will be removed prior to mining. At the final stage of mining Cell 5, all the <br />equipment will be removed and unprocessed material will be hauled off. As shown on Exhibit F, <br />the oil well and power line poles along with the service roads will remain on the property after <br />reclamation is complete. Unless the operator makes provisions with the owner of the property to <br />remove the oil well or power line poles. <br />E-I <br />
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