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n <br />~J <br />INTRODUCTION <br /> <br />This report presents information on the subsidence that may occur as a <br />result of mining at Sno~+nass Coal Company's North Thompson Creek Mines. <br />The report first presents an Inventory of structures and renewable re- <br />source lands in the permit and adfacent area. A determination of possi- <br />ble material damage or diminution of use is then presented. A subsid- <br />ence control plan and a limited subsidence monitoring program are pro- <br />posed. <br />This report utilizes data presented in the Permit Application prepared <br />by 61bbs 6 Hill, Inc., dated February 10, 1981. Additional groundwater <br />data was provided by Mr. Bob Brogden of Bishop Associates, Inc. <br />The general approach to the subsidence permit was developed during meet- <br />ings with Gibbs & Hill, Inc., and the Mined Land Reclamation Board on <br />July 15, 1981, 1n Denver. <br /> <br />The format of the report was dictated by the format of the existing Per- <br />mit Application and the regulations of the Mined Land Reclamation Board. <br />The intent of this report 1s to provide a document which can be set <br />directly into the existing permit with a minimum of format changes. <br /> i <br />1 i <br />