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<br />MLRD Comment 4. <br />Response: BMR expects to have a letter from the County verifying <br />that the County has authorized the road relocation by the February <br />23, 1989 MLR Board meeting. <br />Appendix O, Letter of County Authorization added 4/20/89. <br />' MLRD Comment 5. <br />Response: The draft stability report has previously been submitted. <br />The final report will not vary in the buttress design or stability <br />analysis and will be available by February 24, 1989. Rock strength <br />test results will be included with the final report. <br />Final report submitted March 10, 1989. Exhibit E, section E.3.1.2 <br />revised 4/20/89. <br />MLRD Comment 15. <br />Response: A concern was expressed by the Division regarding the <br />anchor trench for the heap leach liner in the area of the perimeter <br />pipe ditch. The drawings do not show an anchor trench in this area. <br />The drawings are correct in not showing an anchor trench in this <br />area. Since the perimeter ditch will be constructed first, <br />constructing an anchor trench for the heap would disrupt the liner <br />system trench for the ditch. The heap liner would be overlain and <br />sealed to the perimeter ditch lining. Enough slack will be left in <br />the heap liner to prevent pulling and tearing of the seal. Since <br />this seal will be visible and will not be in direct contact with <br />the cyanide solutions, the seal will be adequate. Visual inspection <br />of the seal will be performed on a regular basis to ensure that <br />the seal has not torn. <br />No application change necessary. <br />MLRD Comment 18. <br />Response: A concern was expressed by the Division that BMk would <br />need to monitor the levels of cyanide in the tailings being <br />disposed to ensure that the required levels are being reached. <br />Based on data currently available the levels proposed can be easily <br />attained. BMR will monitor the tailings disposal for cyanide <br />concentrations once each day during the initial two seeks of <br />disposal and once each week thereafter. <br />I Exhibit D, 6ection D.5 revised 4/20/89. <br />MLRD Comment 21. <br />Response: We have verified with Core Laboratories that all batch <br />test for this project were run using hydrochloric acid. The test <br />description contained at the top of the tailings test result sheet <br />i <br />