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<br />Battle Mountain <br />NOPV Abatement <br />page 4 <br />Gold <br />Requirements <br />design evaluations, shall be submitted by BMG to the Division tior review <br />and approval no later than 45 days following completion of the cyanide <br />detoxification of the tailings areas contents, described in item (4) <br />above. <br />Status: Satisfied - BMG has committed to the completion of the requested <br />investigations, the development of an appropriate <br />detoxification procedure, and the submiss on of a <br />summary report in a letter of April 16, 192. <br />(8) Amendment of Tailings Area Reclamation Plan: <br />The Division is concerned that the introduction of cyanide int~ the <br />tailings area may be indicative of the inclusion of associated metallic <br />contaminants not originally anticipated in its approved operat ons and <br />reclamation plan. BMG's preliminary suspicions of altered met llic ore <br />content, and the coincidental failure of the designed processi g cyanide <br />recovery circuit, are additional indications of a modification in the <br />tailings chemical constituency. If the chemical constituency ~f the <br />tailings is different than the original projections, the proje ted <br />characterization of the tailings as non-toxic and chemical ine t is <br />suspect. Change in the tailings constituency may render the a proved <br />final reclamation plan for the tailings inappropriate. <br />In light of any information developed by BMG in the course of {ts <br />required investigations, analyses and redesign, including any amendment <br />to its processing methodology, BMG shall amend its tailings ar a <br />detoxification and reclamation plans appropriately. Appropria a permit <br />amendments, supported by comprehensive analytical results and esign <br />evaluations, shall be submitted by BMG to the Division for rev ew and <br />approval no later than 180 days following completion of the cy Hide <br />detoxification of the tailings areas contents, described in it~m (4) <br />above. <br />Status: Satisfied - BMG has committed to the completion of th~ requested <br />investigations, the submittal of a compre ensive <br />report, and the submission of appropriate permit <br />amendments, if necessitated, in a letter pf April 16, <br />1992. The Division originally specified ompletion <br />within 90 days following detoxification, owever, <br />BMG has demonstrated that 180 days will b required <br />for completion of the requested evaluatioh. <br />(9) Amendment of Environmental Monitoring Plan: <br />BMG shalt amend its environmental monitoring plan to include dhrect <br />monitoring of the cyanide and metals content of the tailings slurry and <br />liquids. Within 15 days following the cyanide detoxification pf the <br />