2023-01-09_REVISION - M2021052 (31)

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i DRMS Adequacy Review Responses Application Form Permit No. is M-2021 -052, not M-2021 -021 -052 1. Answer questions 5.1, 5.2 and 5.3 a. Please revise all application pages containing the name of the applicant to IHC Scott, Inc. 2. It has come to the Division's attention that Scott Contracting, Inc.'s status is listed as "Name Changed" with the Colorado Secretary of State's office. 3. Please revise all proposed exhibits containing Scott Contracting, Inc. to IHC Scott, Inc. A revised Application Form is attached to this letter addressing the correct Permit No., correct organization name, and answers to questions 5.1, 5.2, and 5.3. Please understand that the pdf field in the application adjusts the numbers in a manner that they may not appear as typed. 6.4.1 EXHIBIT A - Legal Description 4. Figure 1 needs to depict the mine entrance with coordinates, as required by Rule 6.4.1(2). Figure 1 has been updated with requested information. 6.4.3 EXHIBIT C - Pre-mining and Mining Plan Map(s) of Affected Lands 5. Based on the narrative of section 4.1 and the structures listed on Table 1, it is unclear if all significant, valuable, and permanent man-made structures are located within 200 feet of the affected lands and which are not. Please adequately address Rule 6.4.3(b) and (g). The Section 4.1 narrative has been updated to be consistent with Table 1 and Exhibit C1. 6. In Section 4.3, Topography and Aquifer, describe the alluvial aquafer's characteristics and location with relation to the permit area and the Colorado River. The following narrative has been included in Section 4.3, "The subsurface conditions are typical of gravel pits and aggregate mines in the Colorado River floodplain with the surface layers consisting of approximately 6 inches of topsoil, underlain by one (1) to seven (7) feet of alluvially deposited fine sediments (primarily silts and clays). This overburden covers between seventeen (17) and twenty-two (22) feet of alluvial gravels that are the target of the extraction operation. Shallow groundwater, connected to the water table of the Colorado River, saturates the gravels, and is generally present throughout the project site at a depth of between one and one-half (1.5) and five (5) feet. The boring logs are included in Attachment C and provide details regarding the property and subsurface soil and groundwater levels."