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Record of Construction Report,VLF2 Recertification Report,Subgrade and Geoembrane 9650'-9750'Elevations ■ <br /> Response to DRMS Comments <br /> NewFields Job 475.0106.026 ■ <br /> July 23,2018 <br /> division requested one density test per 13,500 square feet within the limits of damaged <br /> geomembrane liner.The area of the damaged geomembrane was surveyed on June 14,2018 and <br /> was determined to be 32,908 square feet. To satisfy these requirements, four tests were <br /> performed and the results are presented in the table below and on the Attachment 1. <br /> Location Laboratory Field <br /> Test Depth Max. Max. Pass/ <br /> Date Optimum Moisture Specified <br /> Number (in) Sample Dry Dry Compaction Fail <br /> Northing Easting Moisture Content Compaction <br /> Number Density N Density N N N <br /> (Pcf) (pcf) <br /> 1 7/20/18 55,577.6 36,265.3 8 1SLF-46-R 113.8 14.9 1158 13.0 95 102 Pass <br /> 2 7/20/18 55,559.1 36,162.9 8 1SLF-46-R 113.8 14.9 107.7 11.5 95 95 Pass <br /> 3 7/20/18 55,662.9 36,233.8 8 1SLF-46-R 1 113.8 1 14.9 1 111.8 12.5 95 98 Pass <br /> 4 7/20/18 55,572.5 36,214.6 8 1SLF-46-R 1 113.8 1 14.9 1 116.8 1 13.8 95 103 Pass <br /> Based on control tests documented in the approved Squaw Gulch Valley Leach Facility Phase 1 <br /> Completion Record of Construction Report, dated October 14, 2016, the dry density of the SLF <br /> meets the requirements specified in the approved the technical specification for this facility. <br /> After the tests were completed,the four holes created for the density testing were repaired and <br /> documented in accordance to the project specifications. These results are summarized in <br /> Attachment 2 and have been highlighted in green for clarity. In addition, a photo log showing <br /> the repairs and associated testing is included in Attachment 3. <br /> If you have any questions or require additional information, please contact the undersigned. <br /> Sincerely, <br /> NewFields Mining Design &Technical Services Reviewed by: <br /> Flee <br /> T <br /> •••Jay Janney-Moore, P.E. Keith Williams, P.E. <br /> Engineer of Record Q 375 1 ° Principal Engineer <br /> JNM/KCW/Jnm .•''•.......... <br /> Coy <br /> S20NAL <br /> Attachments: <br /> Attachment 1—SLF Density Verification Locations Between 9650' and 9750' Bench <br /> Attachment 2—Geomembrane Defect/Repair Summary <br /> Attachment 3—Photo Log <br /> Addressee: (via e-mail) <br /> P:\Projects\0106.026 CC&V Leak Detection Services\J-REPORTS\ROC Reports\SG&GM 9650'-9750'\Address DRMS Comments 20180723\180724 Addendum SGGM <br /> 9650-9750'-Fina I.docx <br /> Page 2 <br />