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PERMFILE106676
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PERMFILE106676
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Entry Properties
Last modified
8/24/2016 9:59:19 PM
Creation date
11/24/2007 2:05:33 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2000032
IBM Index Class Name
Permit File
Doc Date
5/19/2000
Doc Name
MONUMENT VIEW GRAVEL PIT M-2000-032 PRELIMINARY ADEQUACY REVIEW
From
DMG
To
RG CONSULTING ENGINEERS INC
Media Type
D
Archive
No
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<br /> <br />200 feet of the proposed permit boundary. Please clarify this situation by specifying the <br />property they own and by illustrating this information on the Exhibit C Maps. <br />5. Please expand the details of all permit maps to include all areas within 200 feet of the <br />proposed permit boundary. <br />Exhibit D - Mining Plan <br />6. The application indicates, no more than 50,000 cubic yards of backfill will be required at any <br />time during the operation, and that 50,000 cubic yards of fill will be maintained on site for this <br />purpose. However, this does not appear to be an operationally feasible plan. If the pit <br />reaches the maximum proposed depth of 32 feet, then it would have to be less than an acre in <br />size for 50,000 cubic yards of material to be adequate volume for backfilling. <br />If the pit is to be a maximum of 5 acres in size at any one time, then a stockpile of 258,000 <br />cubic yards of fill material would be required to be maintained on site at all times during the <br />operation except while excavating Phase I -A. Please create a soil balance for the proposed <br />operation and ensure the mining and reclamation plans adequately address how the mining and <br />backfilling will be performed to arrive at the proposed post-mining configuration. <br />7. Please provide details of how the mining and reclamation operations will mesh: (i.e.: will the <br />pit be a progressive pit where the five acres moves throughout the permit area with <br />reclamation being conducted concurrently (at the back of the pit) while mining occurs at the <br />highwall face; or will the preceding 5 acre pit be completely mined and backfilled before <br />initiating excavation of the next sequential pit. <br />8. What will be the maximum highwall height and length during this mining operation. <br />9. Will the overburden be stripped off of the area that is to be used for the crushing, processing <br />and stockpiling area. <br />10.It appears that this site will require dewatering during the mining process. Please provide <br />details regarding how the dewatering system will be set up in each phase and how it will <br />operate. <br />11.Please indicate the proposed location for the fill material stockpile to be maintained on site. <br />12.What is the maximum acreage to be disturbed by the processing area. Include the access <br />road, crushing and screening area, product stockpiles. <br />13.Please indicate if a wash plant will be used at this location. If so, please include details of the <br />washing operation, including water requirements and handling. <br />EXHIBIT E -Reclamation Plan <br />14. Please provide details of how backfilling of the highwall will occur, under water, so the <br />resulting slope is stable. Also indicate how the grade of the underwater slope will be <br />documented to be at 3:1 or less. <br />
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