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Page 13 <br /> 6.4.4 EXHIBIT D — Extraction Plan <br /> C:ORREL ATION OF MAP UN I[T <br /> SL_RnCLA.L DEPOSITS <br /> HJMAN-A4ADE ALLL 'LLL GRAVEL EOLLLN <br /> DEPO-SIT'S REPO= DEPOSM DEPOSITS <br /> of <br /> Qa <br /> a3o_acane <br /> .Qcs Of Qe <br /> 08, <br /> unoanformity 4: <br /> Qg, <br /> - 4-.� • �+SM cr+a <br /> unconformity - <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 bulk 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 (CDH). <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-l: 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 KING&SAFETY <br /> OFFICE OF MINED LAND RECLAMATION <br />