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2024-08-02_REVISION - M1992051
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2024-08-02_REVISION - M1992051
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Last modified
8/5/2024 8:56:18 AM
Creation date
8/5/2024 8:49:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1992051
IBM Index Class Name
Revision
Doc Date
8/2/2024
Doc Name
Request for Technical Revision
From
Langston Concrete Inc
To
DRMS
Type & Sequence
TR3
Email Name
JLC
AME
EL1
Media Type
D
Archive
No
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LANUSTON <br /> CONCRETE INC. <br /> with approximately 500,000cy +/- of material needed over the 48acre area we have at our pit. So, <br /> it goes without saying, we have more than enough material to adequately reclaim the site. In <br /> some places we are going to have to "fatten" our slopes and or grow space to get rid of the rest. <br /> In addition to this, we also have the material we have already pulled from the pit in"bank." To <br /> correlate, the 5-acre parcel on the West side of the property we are asking to annex to the <br /> existing permitted area has approximately 250,000cy of material on it as of now. <br /> As stated in the mining plan, we are going to add a few concrete structures to the wash plant <br /> operation for various reasons to make the operation more successful. There will be a slab for the <br /> wash plant to sit on. This slab is 25' x 75' x 12". The control van slab is 18'6" x 38' x 12". And <br /> the ramp walls to feed the surge bin are 18'3" x 45'3" x 13' tall. The walls are 3 sided with <br /> backfill up the center to create a ramp for access to the surge bin. We intend to keep these <br /> structures for post mining land use. We believe we can utilize them for future operations once <br /> mining has ceased. The ramp will be useful for loading out trucks and the concrete pads can <br /> double for material storage and/or for structures to sit on. <br /> The water feed for the wash plant will come in from the North-East corner of the property. We <br /> intend on running a water line underground from the property corner to the wash plant. This line <br /> will be either a 6" or an 8" line. We are still working on figuring out the details in a pump size <br /> and demand on the plant for the amount of water we are going to need. It will be skid mounted <br /> and will be a one-unit all-inclusive kind of set up. Meaning that the entire thing can be picked up <br /> as one. Regardless of the size, we believe the best solution for the reclamation of the line is to <br /> abandon it in place once washing activities have subsided. In the field of utility work, our <br /> organization is familiar with abandoning City water main lines in place. A common practice is to <br /> drain the lines, dig the ends up, terminate the pipe, and cap the ends with concrete. In order to do <br /> this, an excavator and some concrete will be needed. We believe it should take an excavator <br /> approximately one hour to dig up one end. And about a half an hour to backfill it. For a total of <br /> three hours. We do not have an estimated cost per hour to operate an excavator, but we try to get <br /> $220.00/hour for our excavators on projects we bid. $220.00 x 3 hours = $660.00. An estimated <br /> 1/2cy of concrete should be all that is needed for each end to cap. For a total of 1 cy of concrete <br /> to cap the ends. We currently sell 3500psi concrete for$190.00/cy. A mobilization fee of <br /> $1,000.00 can be assessed as well. For a total of$1,850.00. ($660.00 + $190.00 + $1,000.00) <br /> Please see "Exhibit D Map" for wash plant location, processing water pond location, and <br /> proposed water line location. <br /> In regards to the 5 acres of land on the West side of the property that we stored overburden on <br /> and unintentionally went outside the permitted area; we intend to treat this land as the rest of the <br /> land under the existing reclamation plan. If the Division grants us the permission to add the <br /> affected area outside the permitted area into the permitted area, we will assume the land to be <br /> dealt with in the same manner as the rest of the gravel pit. Post mining land use will remain as <br /> "industrial." We do not intend to change or modify any portion of the existing operation <br /> currently occurring at the gravel pit. <br /> 902 South Union Street Florence, Co. 81226 (719) 784-3878 Office (719) 784-1158 Fax <br />
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