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~JV ('")e~onc~l& <br />DON HARRIS & ASSOCIATES (~`(`~~1~' ~~ <br />2Z2s Beckham Way 7' J nII T~-~t'SOT~, <br />• Hayward, California 94sa1 /; ~°"~ 1 ,~~~' <br />laid sss-^sss 'Ct2\ ~c1~ <br />July 5,1979 )-~~~e.~ <br />~~ ~'~; <br />Mr. Ted Showalter <br />Mine ?la:~ning Engineer _ , -•-- - - <br />vOlotJyO 1,031 Co. ~ . <br />5731 State 3ighway _ ~ <br />iQo. 13 <br />Meeker, Colorado 91641 <br />Dear `,Ir. Showalter: <br />Enclosed herewith please find our report co~~ering <br />the seismograph reaults of our monitoring of shots on <br />June 19 and 20,1979. As the report indicates theta wa:; no <br />likelihood of dama„e to structures ar_ these loca~iotis <br />on these Gates, Hoe ever, as we discussed, I feel that a <br />program designed to test vibration and air blast at o*_her <br />loca=ions surrounding the pit area would be appropriate for <br />backround i~1fo~~nation and also from a public relations <br />sta~ldpoint. <br />• Also enclosed is our invoice for this work. <br />Please lat :~s knota your decision regarding future <br />work of seismic monitoring. Should you decide to 30 <br />additional seis:~ic work please try to give us as an.tch <br />advar.tce.9 notice as possible and a rrnlgit idea o` the <br />scope of the worlc invol'/ed. <br />Thank you very much and we hope the attached re- <br />port completely fullfills your requirements at this time. <br />Yours very truly, <br />~, ~ <br />~, <br />v , ~ „~„_ ` <br />Donald G. Harris <br />Don Harris ~ Assooiates <br />DGH/pb <br />ri <br />~ ,~r~~ <br />i <br />r JUL ?.1 1579 <br />_,~_ ) <br />-- -- <br />('fIIUVIi~ LllCilidc~l~tIP11~ <br />