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.a <br />IhVll ..-nLP ~.1 1~11i 111 ~~ ~.V <br />'t -•I•'_, .~GA1`TE:i~RI•J CF:EE" <br />FEB - 8 I's9:i <br />u ..lu.lY'!4 ll: lc <br />..M I 11 EAb~p'(jjrSjMl <br />n~hnva. -B-9N <br />~Niru~s AsN <br />Coal Mine Safety and xealth <br />District 9 •. _.., <br />Walter L, Wright <br />Mine Manager <br />Somerset Mining Gompany <br />P. 0, Hox 535 <br />Somerset, CO 81434 <br />Dear Mr. Wright: <br />RE: Sanborn Creek Mine <br />ID No. 05-04452 <br />ventilation System and Methane <br />and bust Control Plan Amendment <br />The enclosed plan amendment, dated January 27, 1994, consisting of <br />a cover letter and 3 map attachments, addressing sump evaluation <br />stations for the "C" seam sump, from the current water (toe} level <br />of 5,670 feet, to the maximum water (toe) level of 5,690 feet, is <br />approved in accordance with 30 CFR 75.370(a)(1). This amendment <br />will be incorporated into the current ventilation Pian approved <br />unfler 30 CFR 75.316 on June 14, 1991, <br />The sump evaluation stations .f or the maximum water (toe) level of <br />the "C" seam sump shall be at the toe of the water near the <br />following locations: <br />dour Input evaluation stations located: <br />1. In entry No. 1, between Crosscut Nos. 38 and 39. <br />2. In entry No. 2, between aroescut Nos, 39 attd 40. <br />3, In entry No. 3, between crossout Nos. 40 and 41, <br />4. In entry No. 4, between crosscut Nos. 91 and 42. <br />Two output evaluation stations loceted: <br />1. In entry No. 5, between crosscut Nos. 42 and 43. <br />2. In entry No. 6, between crossout Nos. 43 and 44- <br />As approved, checY, curtains shall remain installed at the following <br />locations: <br />1. In crosscut No. 39, between entry Nos. 1 and 2, <br />2. In crosscut No. 40, between entry Nos. 2 and 3. <br />3. In crossout No. 41, between entry Nos. 3 arld 4. <br /> <br />APPROVED CPS & H F~~ _ `~;'J~• ~G~ <br />