2025-06-23_REVISION - M1980244 (23)

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Docusign Envelope ID:45B9721C-FDE2-4821-B686-80BBC79CA6DD 22. On the Figure G-1 plate series, please identify monitoring wells which are the official Point of Compliance locations by using a separate symbology compared to other monitoring • locations. Point of compliance locations have been identified in the revised Figure G-1 (Attachment 5). Exhibit L— Reclamation Costs (Rule 6.4.12): 23. Exhibit L was revised during the July 8, 2024 Response to Filing Deficiencies submittal,to include reclamation costs associated with the employee parking area along County Road 821. Please revise Table 1: AM14- External Parking Area Reclamation to include appropriate ripping, regrading/contouring, and any other reclamation task costs that are not present in the table already Table 1: AM14 — External Parking Area Reclamation has been revised to separately identify costs associated with ripping and scarifying of the surface. These tasks were previously incorporated under the broader revegetation cost line item but are now listed explicitly for clarity. No regrading, contouring, or other reclamation is anticipated for the external parking area during reclamation, as the existing surface configuration is suitable for final land use and revegetation. The revised Table 1: AM14 - External Parking Area Reclamation has been included in Attachment 6. 24. Exhibit L consists of the site-wide estimate. This estimate is similarly formatted and structured to the AM13 Exhibit L estimate and the November 30, 2022 Annual Financial Warranty Update. Both were utilized by the Division to build out the CIRCES site-wide cost estimate which led to Surety Increase S17 on December 21, 2023. In accordance with Rule 6.4.12,the Division requests that tasks that are specific to the proposed AM14 expansions are clearly identified either throughout Exhibit L or as a separate and concise submittal to incorporate AM14 changes into the CIRCES estimate. • A concise submittal to incorporate the AM14-specific changes into the Division's CIRCES site-wide cost estimate has been included as Attachment 6. This submittal is intended to clearly identify the tasks associated with the proposed AM14 expansions, consistent with the formatting and structure previously used in AM13 and the November 30, 2022 Annual Financial Warranty Update. The following categories have been revised to reflect AM14 updates: • Waste Rock Dumps—revised to remove the crusher areas; • Heap Leach—adjusted volumes to account for the proposed VLF expansions; • VLF Rinsing—updated to reflect tonnage increases associated with the VLF expansions; and • Disturbance Ratios—revised to reflect updated disturbance associated with AM14. Exhibit R—Proof of Filing with County Clerk(Rule 6.4.18): 25. In accordance with Rule 1.6.2(2), please submit proof that the revisions associated with this letter have been placed for public review with the original application at the local County Clerk and Recorder. Proof of filing with the Teller County Clerk and Recorder is included in Attachment 7. Exhibit S—Permanent Man-made Structures (Rule 6.4.19): 26. Exhibit S, Section 1, Paragraph 1 and 3, need to be updated to reflect the expansion of the affected lands associated with the employee parking area along County Road 821 and the Grassy Valley monitoring well access road. • Exhibit S, Section 1, Paragraphs 1 and 3 were revised to state that Amendment 14 includes the expansion of the affected lands boundary associated with the employee parking area along County SSR Mining Inc. PAGE 7/19