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Exhibit D <br /> Page 8 <br /> • Owner/Operator Coordination and Consultation—Communication with the oil and gas infrastructure <br /> owner(s)/operator(s)will be initiated immediately following the pre-mining reconnaissance. <br /> Owner/operator coordination/consultation will be conducted to identify: <br /> o Specific safety requirements for working near oil and gas infrastructure; <br /> o ECMC well abandonment status and remaining ECMC formal abandonment requirements,such as <br /> but not limited to remediation requirements for soil contamination and reclamation status; <br /> o ECMC process, safety requirements,and operational plan for lowering wells that have been <br /> formally plugged and abandoned and met all ECMC requirements for closure prior to mining; <br /> o Set-back requirements for any oil and gas infrastructure that needs to remain in place within the <br /> mining block.Currently all oil and gas infrastructure within mining blocks has been or is planned <br /> for formal plugging and abandonment; <br /> o Schedule for planned activities required for ECMC approved lowering of the well casing and <br /> plugging and abandonment completion prior to mining;and <br /> o Requirements for CSC coordination/oversight and certification of decommissioning and removal <br /> completion(prior to mine advance into the immediate area). <br /> • Oil and Gas Planning and Implementation Formal Documentation-Prior to each year's mining advance, <br /> CSC will prepare a formal plan(Kersey Mine Oil and Gas Facility Management Plan—Year"TBD", also <br /> referred to as"the Annual Oil and Gas Plan")based on the above information and owner/operator pre- <br /> mining coordination.Following implementation of the Annual Oil and Gas Plan for the respective mining <br /> advance year,CSC will prepare a formal report(Kersey Mine Oil and Gas Facility Management Report— <br /> Year"TBD",also referred to as"the Annual Oil and Gas Report")documenting the completion of the <br /> requirements detailed in the Annual Oil and Gas Plan. The Annual Oil and Gas Report will incorporate <br /> documentation(i.e.,discussion/summarization)of the preceding year's completed decommissioning and <br /> removal activities,as well as short-term(5-year horizon)plans pertaining to proposed decommissioning <br /> and removal activities within the planned pit progression. <br /> Inasmuch as the presence of oil and gas infrastructure within the planned mining areas poses a significant <br /> health and safety concern(in addition to operational constraints),CSC may provide the Annual Oil and <br /> Gas Plan to the Denver office of the U.S.Department of Labor—Mine Safety and Health Administration <br /> for review and comment.It is anticipated that the Annual Oil and Gas Report will be included in the <br /> required Annual Reports to DRMS. CSC notes that the(DRMS Annual Report)reporting obligation is <br /> solely related to ongoing documentation of mine production and mine safety concerns;all legal <br /> obligations relative to reporting on decommissioning activities(to appropriate agencies,etc.)shall remain <br /> the responsibility of the oil and gas facilities' owner/operator. <br /> 3. Permit Area and General Mine Plan Progression <br /> The Kersey Mine is situated roughly 2.5 miles north of US Highway 34,which crosses through the Town of Kersey <br /> before continuing to the southeast. The Permit Area's southern boundary is also situated approximately 2 miles <br /> north of the Riverside Intake Canal and the South Platte River, which flows east-southeasterly. <br /> The Permit Area includes all or portions of seven sections:the S1/4 of Section 34,T06N,R63W of the 6th Principal <br /> Meridian and all of Sections 2,3, 10, 11, 14, and 15, T05N,R63W of the 6th Principal, comprising approximately <br /> 4,018 acres in total,at a location approximately 6.5 miles east-northeast of the Town of Kersey(Weld County).The <br /> Permit Area is,in its entirety,comprised of fee-simple(privately-owned)surface estate that is a part of the Wells <br /> Ranch and Wells Ranch LLC holdings;CSC controls the surficial sand deposits by virtue of a lease with Wells <br /> Ranch and/or its assigns. <br /> Colorado Sand Company II, LLC <br /> Kersey Mine Construction Material Regular(112)Operation Reclamation Permit Application <br /> June 7,2024 <br />