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2019 Plan of Operations Modification American Gypsum Company, LLC <br /> 1 .0 GENERAL INFORMATION <br /> 1.1 General <br /> The Mine is owned and operated by American Gypsum. Table 1.1 summarizes the approved and <br /> proposed permit areas associated with this Modification submittal. Drawing 01 shows the existing <br /> Mine permit area (830.2 acres) and proposed permit expansion area (99.2 acres). Drawing 02 <br /> provides the comprehensive legend. <br /> TABLE 1.1: PERMIT AREA SUMMARY <br /> Private .. . Total Acreage <br /> . Land Land (acres) <br /> - <br /> (acres) (acres) <br /> Approved Mine Permit Area 141.1 689.1 830.2 <br /> Proposed Permit Expansion Area N/A 99.2 99.2 <br /> Total Permit Area (Approved and Proposed) 141.1 788.3 929.4 <br /> Table 1.2 contains a summary of permitted and actual surface disturbance areas by facility. <br /> Permitted disturbance areas were delineated using limited available information in permit <br /> applications and approvals listed in Table 1.4. Actual disturbance areas were determined using <br /> information from American Gypsum's annual report to CO DRMS (American Gypsum, 2018), <br /> refined to reflect actual disturbance shown on aerial imagery.Actual disturbance areas are shown <br /> on Drawing 03. <br /> Am Gypsum Poo Mod ISSD 20190909 September 2019 [3] <br />