2019-04-26_REVISION - M2012013 - Laserfiche WebLink

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Based on the assumption that we will run short on topsoil material available for salvage within the site to be used for reclamation, we have been working with the local NRCS office to develop alternative options. We believe the most feasible and responsible option to make up for the shortfall will be to use manure as a supplement to ensure the entire site is covered with either 4"or 6" of acceptable plant growth medium. This method has been suggested by the local NRCS office and will be implemented if our final quantity of topsoil material falls short of meeting our needs.Also based on the soil sample results, we will continue to work with the NRCS office and the seed supplier to ensure the suggested fertilization rates and mixture are sufficient to ensure a successful revegetation effort. No fertilizer will be used unless found necessary from the soil samples taken. The new proposed area to be mined within this pit vary in topography, the volume of soil available to be salvaged also varies. To better understand the calculations to follow, please refer to Mining and Reclamation Plan Maps found within the permit application package. a. Area 1 consists of a flat area in the middle Western section of the proposed expansion site with an existing open gravel face immediately to the East. This open face was left in place by previous mining activities. This area also includes the access road that will be expanded to access the proposed expansion of the site. Area I consists of approximately 15.7 acres or 683,892 sf of proposed disturbance. While speaking with the local NRCS office and reviewing the soils report for the area, this area is classified as being a soil type 188 and 215.Both of these areas are identified to have between 0"-4"of sandy loam soil present at the surface,which is considered the topsoil material in this area.Using these measurements, the total topsoil available for salvage is: 683892 sf x 4"= 227,207 bcf (banked cubic feet)or 8,415 lacy (banked cubic yards). b. Area 2 is located in the Southern most region of the proposed expansion site.This area consists of approximately 2.16 acres or 94,090 sf and is undisturbed.According to the soils report,the soil in this area is also classified as a type 188 with a small portion being a 105.Both soil types are also stated to have between 0"-4"of sandy loam material available as topsoil.With these measurements,the total topsoil material available for salvage is: 94,090 sf x 4"=31,053 bcf or 1,150 bey.Owner does not plan on needing this entire area, but needs to permit it in case material runs out in areas as we move forward. As stated above, based on the most recent soil survey available for the proposed area along with the conditions present at the site, we should expect to see 9,565 cy of topsoil material salvaged and stockpiled to use during reclamation. This quantity is based on stripping the entire site at 4" which is not expected to happen but will be used in the reclamation estimate.