2019-08-23_REVISION - M1980244 (5)

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Cripple Creek&Victor Gold Mining Company Squaw Gulch VLF Phase 2A Part 1 ■ Record of Construction Report 475.0106.032 August 21,2019 were one sample for every 10,000 cy. One LDF sample was required to be tested for particle size and Atterberg limits. One LDF samples was tested with passing results. LDF laboratory testing is summarized in Table 9 and individual test results are presented in Appendix 1.5. 3.2.6. Soil Liner Fill The Squaw Gulch VLF Phase 2A Part 1 area was constructed by placing 24,670 cy of soil liner fill (SLF). The particle size distribution, Atterberg limits, laboratory compaction, and permeability testing frequencies were one sample for every 4,000 cy. Seven SLF record samples were required to be tested for particle size distribution, Atterberg limits, laboratory compaction, and permeability testing. Ten SLF record samples were tested with passing results. SLF laboratory testing is summarized in Table 10 and individual test results are presented in Appendix 1.6. The nuclear density/moisture testing frequency for SLF is one test for every 500 cy. A minimum of 50 SLF nuclear density/moisture tests were required. A total of 54 SLF nuclear density/moisture tests were performed with passing results. The depth check frequency for SLF is two checks for every acre. A minimum of 31 SLF depth checks were required.A total of 32 SLF depth checks were performed with passing results. SLF nuclear density/moisture testing and SLF depth checks are presented in Tables 12 and 13 respectively. 3.2.7. Drain Cover Fill The Squaw Gulch VLF Phase 2A Part 1 area was constructed by placing 60,632 cy of drain cover fill (DCF).The particle size distribution and Atterberg limits testing frequencies were one sample for every 20,000 cy.Three DCF samples were required to be tested for particle size and Atterberg limits.Six DCF samples were tested with passing results. DCF laboratory testing is summarized in Table 11 and individual test results are presented in Appendix 1.7. 3.3. Concrete and Cemented Rockfill Quality Assurance The CQA Monitor observed the placement of all concrete and cemented rockfill used to remediate the Squaw Gulch VLF Phase 2 underground workings. A total of 2,621 cy of concrete was used during remediation.The concrete was tested for slump,temperature, and compressive strength at a rate of one test per 50 cy. A minimum of 52 samples were required for concrete testing. A total of 55 samples were tested with results meeting the properties required by the project Technical Specifications. The concrete test results are summarized in Appendix D.4 and the individual concrete test results are presented in Appendix D.5. No testing was required for P:\Projects\0106.032 VLF2 Phase 2 CQA\J-REPORTS\Cert Report-Phase 2A Part 1\DRMS Comments\475.0106.032 CCV PHASE 2A Part 1 ROC REPORT_Revl.docx Page 12