2023-02-02_PERMIT FILE - M2022013 (12)

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Soil Salvage: Resource recovery will commence by first removing the upper [A profile/plow,layer) sit to twelve inches of soil[sit(6.4±)inches ty-pical), combined with existing grass or crop stubble.Removal will utilize scrappers or excavators, aided by dozers where necessary,and hauled to the Northeast Section of Central Field. All extraction and surface related activities detailed in this application wvill occur under an approved Fugitive Dust Permit issued by the Colorado Department of Public Health and Environment(CDH)_ Until resoiling activity occurs,where harvested soils have been stockpiled and remain undisturbed for reclamation or sale,they will be seeded with the mixture specified under Exhibit L-Table L-1: Primary,/Preferred Revegetation Seed:4ii-x-ture.A stabilizing cover of native vegetation may, take up to three years to fully establish the desired cover. In the event the native seed mixture fails, an optional mixture of predominantly introduced species will be used as a fall back to better assure a stabilizing cover of vegetation. Still,using the 2c 113 6.4.5 EXHIBIT D—Extraction Plan preferred native seed mixture offers opportunity to gauge the potential performance of the selected species prior to utilizing it over larger areas requiring reclamation later in the life of the resource recovery operation- once vegetation is established over the initial reclamation soil stockpiles, they will likely remain untouched for the life of the operation until final reclamation of remaining affected lands takes place. Where concurrent reclamation is possible, operations M11 utilize soil in an over the shoulder method when practical_ In this manner, reclamation is expedited uithout increasing soil stock.-pile volumes while reducing expenditures related to labor,handling, and time. There are no agents preventing the soil from functioning for reclamation other than the inevitable loss of some native soil structure, organic matter, and fertility that can be compensated for by any analytically determined need at the time of resoiling and revegetation, via analysis using of soil samples by the CSU Soils Laboratory. This and other measures are detailed in the application under Exhibit I/J: Soils and Vegetation Information, as follows: Continued...next page... 251Page Correspondence to the Colorado Office of Mined Land Reclamation —Reply to Rob Zuber,EPS—Adequacy Letters of 24 June and 5 August 2022;in the matter of the Two Rivers Sand,Gravel and Reservoir Project—M2022-013.