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Mr. Harrington <br /> Page 2 ' <br /> Decembtr 14, 2018 <br /> 6. Please provide a general discussion of how the mine pool will be managed as a result of lowering the <br /> submersible pump. The discussion should address the periods of time the water treatment plant will <br /> w ter treatment as well as durin <br /> periods when the water treatment plant is off-line. <br /> 7. The Operator is proposing to remove several total and dissolved metals from the groundwater sample <br /> suite, all of which are contained within Tables 1 through 4 of"The Basic Standards for Ground <br /> Water"(Regulation No. 41). The Division is an implementing agency, responsible for implementing <br /> Water Quality Control Commissions' (WQCC) standards and classifications for discharges through <br /> its own regulatory programs after consultation with the WQCC and the Water Quality Control <br /> Division. Therefore,the Operator must make a demonstration that the analytes proposed for removal <br /> are not currently exceeding the Table Value Standards in Tables 1-4. Any analytes which exceed the <br /> Table Value Standards,must remain in the groundwater sample suite.If a particular analyte is not <br /> exceeding the Table Value Standard,then this analyte could potentially be removed from the <br /> groundwater sample suite. In accordance with Rule 3.1.7(8), an Operator shall demonstrate to the <br /> satisfaction of the Division,that reclamation has been achieved so that existing and reasonable <br /> potential future uses of groundwater are protected. Therefore, any analytes which meet the criteria for <br /> removal will need to be added back into the groundwater sample suite prior to release of the <br /> Reclamation Permit, as part of the Operator's demonstration under Rule 3.1.7(8). <br /> 8. The Operator has indicated monitoring wells MW-4 and MW-5 were removed in 2008. Please explain <br /> why these monitoring wells were removed. In addition,provide documentation which demonstrates <br /> the removed wells were abandoned in accordance with the requirements of the Division of Water <br /> Resources. Finally, a review of the Environmental Protection Plan approved in 2012 and revised in <br /> 2016, lists MW-4 as an existing well. Please clarify this discrepancy. <br /> 9. The Division conducted a review of the various permit revisions which authorized new groundwater <br /> sampling locations and discovered that several of the reported Sample IDs do not match the Sample <br /> IDs which were provided to the Division in the permit revisions. Please review the following table <br /> and specify which of the currently reported Sample ID's are associated with the Sample IDs listed <br /> below: <br /> Sample IDs Not Reported Associated Permit Revision Notes <br /> L1 TR19 Replaced MW-10 <br /> L2 TR19 Replaced MW-11 <br /> L3 TR19 <br /> L4 TR19 <br /> L5 TR19 <br /> L6 TR19 <br /> L7 TR19 <br /> Mine Refill EPP <br />