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2023-03-24_PERMIT FILE - M2022013 (3)
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2023-03-24_PERMIT FILE - M2022013 (3)
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Last modified
3/24/2023 12:31:09 PM
Creation date
3/24/2023 12:22:32 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2022013
IBM Index Class Name
Permit File
Doc Date
3/24/2023
Doc Name Note
Exhibit D - Extraction Plan
Doc Name
Adequacy Review Response
From
Raptor Materials, LLC
To
DRMS
Email Name
RDZ
MAC
Media Type
D
Archive
No
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Pa c 13 <br /> 6.4.4 EXHIBIT D — Extraction Plan <br /> C'ORR-ELATION OF A AP UNITS <br /> SURFICL&L DEPOSITS <br /> HUMAN-NLADE ALLLT%7IAL GRAVEL EOT IAN <br /> DEPOSITS DE—POSITS DEPOSITS DEPOSITS <br /> of <br /> Qa Ho:o_ene <br /> cQcs:. C2f Qe <br /> Qa� - <br /> unconformity <br /> Qg ej `l C —Pleistocene <br /> unconformity 4a <br /> Figure 3: Surficial Deposits relative to areas shown in Figure 2, above. <br /> The aggregate deposits of Qal and Qa2 (Figure 3, above) form the bulls of the <br /> deposit planned for extraction. Depths vary by field from approx. 30 to 45 <br /> feet. Depths are shallower as the adjacent hillside rises to the north; while <br /> the deposit dips deeper toward the South-East of each designated Field. <br /> Soil Salvage: Resource recovery will commence by first removing the upper <br /> [A profile/plow layer] six to twelve inches of soil [six (6.0±) inches typical], <br /> combined with existing grass or crop stubble. Removal will utilize scrapers or <br /> excavators, aided by dozers where necessary, and hauled to the Northeast <br /> Section of Central Field. All extraction and surface related activities detailed <br /> in this application will occur under an approved Fugitive Dust Permit issued <br /> by the Colorado Department of Public Health and Environment (CDPHE). <br /> Until resoiling activity occurs, where harvested soils have been stockpiled and <br /> remain undisturbed for reclamation or sale, they will be seeded with the <br /> mixture specified under Exhibit L - Table L-1: Primary/Preferred Revegetation <br /> Seed Mixture. A stabilizing cover of native vegetation may take up to three <br /> years to fully establish the desired cover. In the event the native seed mixture <br /> fails, an optional mixture of predominantly introduced species will be used as <br /> a fall back to better assure a stabilizing cover of vegetation. Still, using the <br /> VARRA COMPANIES, INC. TWO RIVERS SAND GRAVEL AND RESERVOIR PROJECT MARCH 2O22 <br /> A REGULAR IMPACT[112]CONSTRUCTION PERMIT APPLICATION—COLORADO DIVISION OF RECLAMATION MINING&SAFETY <br /> OFFICE OF MINED LAND RECLAMATION <br />
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