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2014-05-12_REVISION - M2002114
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2014-05-12_REVISION - M2002114
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Entry Properties
Last modified
6/16/2021 6:23:38 PM
Creation date
5/12/2014 4:16:18 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2002114
IBM Index Class Name
REVISION
Doc Date
5/12/2014
Doc Name
Request for technical revision TR05
From
Oldcastle SW Group, Inc. dba United Companies of Mesa County
To
DRMS
Type & Sequence
TR5
Email Name
THM
Media Type
D
Archive
No
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Table D -6 <br />Table D -6 shows a balance of the topsoil and overburden stripped versus the amount of topsoil <br />and overburden used in the reclamation of the Pit. The columns which simply state TS and OB <br />Volumes are for the amounts of topsoil and overburden stripped from each phase. The column <br />titled Material Needed to Reclaim is the minimum amount of material which is required for the <br />reclamation of that pit. Note that Pits 3 & 4 have very low amounts of material needed to <br />reclaim area. This occurs since the creation of wetland shelves in Pit 1 accommodates most of <br />the wetland creation needed. As such, the remaining pits require overburden and topsoil only to <br />achieve 31-1: IV slopes. The remaining overburden can be placed in the lake bottoms. This plan <br />insures that there is more than enough overburden and topsoil available to reclaim as well as <br />generate additional wetlands. <br />It is important to note that the initial permit of 2002 contemplated moving overburden from the <br />northern portion of the permit area to the south, placing material in the floodplain in order to <br />create commercial pad sites. It was agreed that this could only be done once a floodplain study <br />was conducted and approved for this activity. This 2006 Amendment no longer utilizes filling in <br />the floodplain. Pad sites will be created by leaving a maximum of 20 pillars of unmined gravel in <br />Pits 3 and 4 above the 100 year floodplain. There will be no permanent backfilling above <br />existing terrain anywhere in the permit area. <br />Topsoil Stockpile <br />Topsoil will not have to be stockpiled to a great extent during the life of the mine. The topsoil <br />that is removed in a phase of mining can be used to reclaim the previously excavated phase, <br />removing the need for any special topsoil stockpile. Topsoil set aside at the start of Pit 1 can be <br />15 Road Pit May 14 D -8 <br />Area <br />(acres) <br />TS <br />Volume <br />(yd3) <br />OB <br />Volume <br />(yd3) <br />Material <br />needed to <br />Reclaim <br />d3 <br />Percent OB <br />&TS used <br />for <br />reclamation <br />Pit 1 <br />30.71 <br />33,030 <br />155,916 <br />161,452 <br />Pit 2 <br />31.10 <br />33,449 <br />192,566 <br />209,532 <br />Pit 3 <br />55.10 <br />59,263 <br />1,196,754 <br />64,031 <br />Pit 4 <br />75.19 <br />80,871 <br />1,608,929 <br />68,438 <br />191.7 <br />1 206,613 <br />3,154,166 <br />475,102 <br />15% <br />Table D -6 shows a balance of the topsoil and overburden stripped versus the amount of topsoil <br />and overburden used in the reclamation of the Pit. The columns which simply state TS and OB <br />Volumes are for the amounts of topsoil and overburden stripped from each phase. The column <br />titled Material Needed to Reclaim is the minimum amount of material which is required for the <br />reclamation of that pit. Note that Pits 3 & 4 have very low amounts of material needed to <br />reclaim area. This occurs since the creation of wetland shelves in Pit 1 accommodates most of <br />the wetland creation needed. As such, the remaining pits require overburden and topsoil only to <br />achieve 31-1: IV slopes. The remaining overburden can be placed in the lake bottoms. This plan <br />insures that there is more than enough overburden and topsoil available to reclaim as well as <br />generate additional wetlands. <br />It is important to note that the initial permit of 2002 contemplated moving overburden from the <br />northern portion of the permit area to the south, placing material in the floodplain in order to <br />create commercial pad sites. It was agreed that this could only be done once a floodplain study <br />was conducted and approved for this activity. This 2006 Amendment no longer utilizes filling in <br />the floodplain. Pad sites will be created by leaving a maximum of 20 pillars of unmined gravel in <br />Pits 3 and 4 above the 100 year floodplain. There will be no permanent backfilling above <br />existing terrain anywhere in the permit area. <br />Topsoil Stockpile <br />Topsoil will not have to be stockpiled to a great extent during the life of the mine. The topsoil <br />that is removed in a phase of mining can be used to reclaim the previously excavated phase, <br />removing the need for any special topsoil stockpile. Topsoil set aside at the start of Pit 1 can be <br />15 Road Pit May 14 D -8 <br />
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