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~. <br />Mr. Karl Koehler -3- March 19, 1993 <br />Cyprus Orchard Valley Corp. <br />Mine Inflow Report <br />The Division concurs with COVCC's conclusion of low water inflow to the mine. We <br />also understand that no discharge from the mine will occur and none is projected for <br />the 1992 water year. <br />Annual Subsidence Report <br />No evidence of surface subsidence is evident in the data presented by COVCC during <br />1991. It is apparent from file review that COVCC received approval to discontinue <br />tightly spaced monitoring due to presenting evidence that subsidence predictions were <br />accurate enough to reduce subsidence monitoring to a widely spaced grid once per <br />year. The 1992 monument survey has already taken place. The Division would like to <br />discuss the 1993 monument survey stations in conjunction with the upcoming water <br />monitoring plan revision. <br />Your efforts to adhere to your annual reporting requirements are appreciated. We look <br />forward to working with you to develop comprehensive monitoring plans which may better <br />serve both your needs and ours. <br />Sincere y, <br />~= ~~~ <br />Kent A. Gorham <br />Reclamation Specialist <br />KAG/bjw <br />cc: David Berry, DMG <br />m:\oss\bjw\kap.38 <br />