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i r <br /> Lewicki & Associates <br /> ENGINEERING GEOLOGY ENVIRONMENTAL <br /> May 27, 2022 RECEIVED <br /> MIL Richardson <br /> Asphalt Paving Company JUL 13 2022 <br /> 14802 W 44th Ave <br /> Golden, CO 80403 DIVISION OF RECLAMATION, <br /> MINING &SAFETY-MINERALS <br /> Wattenberg West Sand and Gravel Mine Permit No. M-2005-066 <br /> Slope Stability Analysis <br /> Asphalt Paving Company is in possession of a permit for mining sand and gravel resources from a <br /> pit in Wattenberg, Colorado. This permit (M-2005-066) is being transferred, requiring new structure <br /> agreements to be obtained between the applicant and structure owners within the affected area of <br /> the mine. Agreements for all structures within 200 feet of mining have been pursued by the <br /> applicant, but not all have been obtained. This slope stability analysis satisfies the Mineral Rules <br /> and Regulations for Construction Materials Rule 6.4.19(b)that requires an engineering evaluation <br /> demonstrating that structures should not be damaged by mining activities in the case that a <br /> structure agreement cannot be reached. While there are many structures within the 200 feet of <br /> affected area from the permit, only the nearest structures to mining were evaluated for slope <br /> stability purposes. It can be assumed that any structure not covered in this analysis will not be <br /> affected as they are located greater than the minimum setback from mining identified in this report. <br /> Mining is not currently being undertaken at this location, nor is it expected to start in the immediate <br /> future. <br /> 1 . Nearby Structures and Existing Agreements <br /> Structure and setback agreements have previously been obtained for the majority of the structures <br /> and utilities within the affected area of the mine. The original agreements can be found in the <br /> existing DRMS permit and subsequent revisions and are summarized in Table 1 below. Also <br /> included are other affected structures which do not currently have structure agreements. Refer to <br /> the attached Nearest Structures Map which provides the location in relation to mining of the <br /> structures closest to mining. <br /> Wattenberg West Slope <br /> Stability Lcwicki&Associates <br /> May 2022 <br />