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PETSMAILING ADnRESs P O BoY 440 RAPID CITY, SD 57709-0440 PH 605-342-7224 <br /> PHYSICAL ADDRFSS: 3401 UNIVERSAL DR RAPID CITY, SD 57702 Fx. 605-342-6979 <br /> IEN <br /> I SONS, ,NO. 2202 <br /> December 09, 2022 <br /> < 0\4\'V1 AG O <br /> State of Colorado MAN <br /> a <br /> ,$ Division of Reclamation, Mining and Safety <br /> t', y 1313 Sherman Street <br /> Room 215 <br /> x Denver, Colorado 80203 <br /> g Re: Pete Lien&Sons, Inc.; Mining Permit No. M-1977-002 HR; Munroe Gypsum;Technical <br /> .r <br /> Revision Request for an Exploration Drilling Program <br /> Ilk •` i Permittee proposes drilling approximately thirty-nine (39) holes to delineate overburden <br /> thicknesses and gypsum reserves in the middle and northern portions or the quarry within the <br /> current permit boundary. <br /> •, Four inch (4 in)diameter holes,approximately 30-50 feet deep will be drilled with the same piece <br /> ' of machinery used to drill holes for blasting. Holes will be backfilled with the cuttings removed <br /> while drilling the hole. <br /> We do not anticipate encountering any water but the top 2-3 feet of the holes will the sealed with <br /> bentonite. <br /> • <br /> The drill will travel overland. As such, no roads will be constructed. <br /> A updated Exhibit C(Mining Plan Map of Affected Land)showing the approximate locations of the <br /> +t drill holes,travel routes, Mining Areas and Mining Sequence is attached. <br /> 1'1 <br /> If there are any questions regarding this submittal or if additional information is required, please <br /> b <br /> contact me at(605) 939-2719 or by email at mgolliher@petelien.com. <br /> T ""fir✓ <br /> Respectfully, <br /> ,Apo * a S <br /> f Michael Golliher <br /> Technical Director of Mine Planning <br /> + Pete Lien &Sons, Inc. <br /> Enclosures: Request for Te hnical Revision Cover letter, Munroe Quarry Exhibit C Map,Technical <br /> Revision Fee/Check($216�� Z3/4) <br /> Return Receipt: 7016 0910 0000 5814 3177 <br /> v <br /> N <br /> 4 <br /> � L <br /> t <br />