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2009-02-23_PERMIT FILE - X200921208 (3)
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2009-02-23_PERMIT FILE - X200921208 (3)
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Last modified
8/24/2016 3:43:48 PM
Creation date
2/23/2009 11:21:48 AM
Metadata
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Template:
DRMS Permit Index
Permit No
X200921208
IBM Index Class Name
PERMIT FILE
Doc Date
2/23/2009
Doc Name
NOI Application
From
Mountain Coal Company
To
DRMS
Email Name
JDM
Media Type
D
Archive
No
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Dry Fork drill sites will be approximately 100' x 200' in size. Smaller dimensions will be <br />utilized whenever possible. Drill site sizes and layout will be reviewed with the USFS <br />representative prior to construction on USFS managed surface. <br />The Lions Mesa conventional drill site 2009-E will be approximately 70' x 100' in size. A <br />smaller dimension will be utilized if possible. The remaining helicopter supported sites will be <br />brushed and handleveled in a 30' X 30' dimension if required. <br />For conventional drill sites, brush and/or small trees will be cleaned from the drill pads using a <br />D-6 size bulldozer. Topsoil will be removed and stockpiled on the upslope side of the drill pad <br />and remain undisturbed during drilling at the site. The topsoil pile will not be seeded due to the <br />short duration of storage. Approximately one foot of soil thickness will be salvaged and <br />stockpiled at the disturbance site with a "TOPSOIL" sign clearly marking the pile. Leveling of <br />the drill sites (cut and fill) by grading the subsoil and/or weathered rock is not anticipated. <br />Slurry (mud) pit construction will be made on the downslope portion of the topsoil stripped drill <br />pad. Using either a D-6 dozer or backhoe, from one to two pits will be excavated at each site, <br />depending upon depth of drill hole and projected water requirements. The mud pit(s) will be <br />approximately 10' wide, 30' long and 6' deep. Subsoil and rock materials excavated from the <br />pits will be held separately and used to refill the mud pits upon reclamation. All pit constructions <br />and extracted subsoil will be within the stripped pad area. <br />. The hydrologic balance will be protected by minimizing disturbance and through the entrapment <br />of sediments from exploration activities. Using the existing roads or trails to the degree practical <br />minimizes surface disturbance. Where possible, the existing vegetation will be left in-place and <br />the need for sediment control therefore reduced. With the existing roads mainly located in the <br />flatter area (along the ridge tops or valley bottoms), the need for new disturbance and the <br />possibility of sediment loss is reduced by avoiding areas of steep slopes. Likewise, by utilizing <br />existing flat areas for drill pads, only minimal surface disturbance will be necessary to level <br />uneven portions of the site and to construct a mudpit. <br />Salvaged soils will be placed upslope of the drill pad with appropriate sediment control devices <br />surrounding the down slope portion of the soil stockpile. A similar sediment control device will <br />be placed on the downslope side of the subsoil/rock stockpiles from the slurry (mud) pits. <br />Overland flow of the drill fluids will be directed into the slurry pit as will most precipitation <br />runoff. The drill pads will typically be reclaimed within two weeks of construction. <br />Where roadwork is required to widen or level the roadway, the amount of material disturbed can <br />be significantly reduced in volume by limiting the soil material removed to only a few inches in <br />depth. This method leaves some topsoil in place while creating an adequate reserve for <br />redistribution, without significantly disturbing the major root systems of the existing grasses and <br />shrubs. In these areas, care will be taken to avoid traveling the roads when wet, causing <br />excessive rutting. <br />0 Methods and Equipment for Drilling <br />8
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