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ICMC RECERTIFICATION SUMMARY AUDIT REPORT <br /> CC&V uses the Newmont corporate procedures for management of change to evaluate changes in <br /> processes, materials, equipment, systems, programs, or resources and control their implementation.The <br /> proposed change is evaluated using a risk assessment. Required controls to reduce any potential risks <br /> associated with the proposed change are assigned to specific staff with target completion dates and <br /> described in an action plan. For high or extreme changes,.the approvers include the safety and <br /> environmental managers.The approved change is communicated to workers and training is provided, if <br /> necessary, prior to the change implementation.The auditors reviewed examples of completed management <br /> of change forms and risk assessments to verify compliance. <br /> Inspections of the cyanide facilities are conducted on a shift,weekly, monthly, quarterly, and annually basis. <br /> These inspections are sufficient to assure and document that the cyanide facilities are functioning within the <br /> design parameters.The operational safety walkthrough inspections for the ADR1,ADR2 and HGM and <br /> PSES areas cover the condition of tanks, pumps,valves, pipes secondary containments, HCN sensors and <br /> safety showers and eye stations_The operational safety walkthrough inspections for the two VLF areas <br /> cover the condition of the PSSA pumps and the ESP. In addition, maintenance people conduct monthly <br /> inspections of the tanks, sumps, pumps, secondary containments and others.CC&V conducts <br /> non-destructive testing(NDT)on the reagent strength cyanide tanks and all cyanide process tanks.The <br /> solution reports for ADR1, ADR2 and the Mill daily leach round report for the HGM cover elements such as <br /> tonnages, densities, pH and cyanide concentrations and pond levels to assure the facilities are operating <br /> within design parameters. CC&V monitors the leak collection systems at the PSSAs of the VLFs and the <br /> ESP as well as the leak collection systems and underdrains at the VLF ore placement areas on a weekly <br /> basis. Operations also conducts inspections of the leak collection systems every shift. Stormwater ditches <br /> and sedimentation traps are inspected quarterly by the Environmental Department.The auditors reviewed <br /> completed examples of the inspection forms to verify compliance.The auditors also observed that the <br /> cyanide facilities were generally in good condition,without leaks,salts, or other issues that would be related <br /> to inefficient inspections. <br /> CC&V has implemented a maintenance program via the SAP software that includes both preventative <br /> (scheduled) maintenance and corrective(unscheduled)maintenance.The maintenance program includes <br /> the elements necessary for cyanide safety management including fixed HCN monitors, pH meters, NDT on <br /> cyanide solution tanks,tank level indicators and interlock systems, pond level indicators, sump level <br /> indicators,tanks and pumps, backup generators and others.The auditors reviewed examples of completed <br /> maintenance records from the SAP system from 2014 to March 2017 to verify that the preventive and <br /> corrective maintenance programs were implemented as required during the recertification period.The nature <br /> and date of corrective actions are documented in the inspection forms or through the SAP records.The <br /> auditors randomly picked a couple of deficiencies noted on inspection forms for the recertification audit, and <br /> the maintenance staff were able to pull up the records in SAP to verify the completion date,the name of the <br /> staff involved, and the time it took to complete. <br /> CC&V has 11 fixed backup generators to operate the critical components at the cyanide facilities in the event <br /> of a power outage. In addition, of the generators, CC&V has designed the PSSAs of VLF1 and VLF2 to <br /> contain a 12-hour draindown volume due to power loss.The auditors observed these generators to verify <br /> they exist and are in good condition (visually)during the site visit.The auditors reviewed closed maintenance <br /> work orders related to the generators to verify compliance. <br /> Standard of Practice 4.2: Introduce management and operating systems to minimize cyanide <br /> use,thereby limiting concentrations of cyanide in mill tailings. <br /> ® in full compliance with <br /> CC&V is: ❑ in substantial compliance with Standard of Practice 4.2 <br /> ❑ not in compliance with <br /> Summarize the basis for this finding: <br /> The operation is in FULL COMPLIANCE with Standard of Practice 4.2; introduce management and operating <br /> systems to minimize cyanide use,thereby limiting concentrations of cyanide in mill tailings. <br /> CC&V Mine July 28,2017 <br /> Name of Faality Signature of Lead Auditor Date <br /> July 2017 Golder <br /> Report No.1663584-003-R-RevO 10 *Associates <br />