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~--, <br />MIMED LANG RECLAMATIC~! ^I'~11SiCi 1 <br />Department of Natural Resources <br />t 3t 3 Sherman St., Room 2t 5 <br />Denver, CO 80203 <br />303 866.3567 <br />Fnx 303 832.8106 <br />~7- n n r~ III IIIIIIIIIIIII <br />S l.=iri i U~ ~1Jt_l 1~'~1==~iJ991 <br />~~~ <br />0.1;. 4- ,~~y~ <br />^" ,,,r ,o <br />••\' 1816 ~~~/ <br />Roy Romer. <br />Gwemor <br />Michael 8. long. <br />Drvis~on Director <br />S <br />I met with Dr. Chris D. Breeds today to discuss a study he has been contracted <br />to complete for the U.S. Bureau of Mines (USBOM). Chris is a Canadian <br />consultant experienced in subsidence projection and remedy. He became <br />acquainted with the USBOM white completing subsidence analysis, prediction and <br />remediation in the State of Washington. Chris is also providing consulting <br />services to Cyprus Coal on their Empire and Foidel Creek projects. <br />DATE: August 4, 1.992 , <br />T0: Steve Renner <br />Dave Berry <br />Dan Hernandez ~ <br />Larry Routten ., <br />Susan Gilstrap `~ ~ <br />•_ ~, <br />FROM: Jim Pendleton - .- ~~- <br />RE: Division Co ration 'ith U.S. Bureau of Mines Subsidence Study <br />The objective of this study is to investigate whether the use of strain <br />prediction models might be more effective in predicting subsidence related <br />damage than ±he more traditional displacement models. The study will focus on <br />coal mines in Colorado and Utah. Phase one of the study is the collection of <br />available information for the subject coal mines. In this regard Chris has <br />requested permission to examine our subsidence data and interpretive r=ports, <br />and the corresponding mans depicting face locations and extraction history. <br />He may also desire to examine the permi± application subsidence predictions <br />and interview lead specialists and other involved technical personnel. <br />I have indicated to Chris that we will endeavor to cooperate whenever <br />possible. I also indicated that all the file information is public. I <br />informed them that normally we restrict dir=-t 3CCes5 to the filar to our <br />staff. I have agreed that we wil' a11ow Chris direct access, following an <br />introductory tour by 3 senior reclamation specialist. I stressed the <br />importance of maintaining our files in :,roo2~ order and condition. Chris and <br />the USBOM have also requested that we .allow them to borrow the necessary <br />materials to copy them at the USBCt•1 office at the federal center, in order to <br />economize. I have agreed to this request wi*.n the conditions: (1) that .they <br />provide our clerical staff with a ccmp'eta 'fisting of all materials borrowed; <br />and, (2) that all materials be returned ~dith'n twc wowing days. <br />