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N III Illlllllllllllll <br />Montrose District Office <br />2465 Sonth Tarnsend <br />Montrose, Colorado 81401 <br />D-052501 (1301 <br />O.,.I'~,~1~ <br />Bear Coal Co~pany, Inc. <br />Attn: Craig ti. Springer <br />P. 0. Boz 516 <br />Soserset, Colorado 81434 <br />Gentlesen: <br />JUN 16 X986 <br />~•..r., n,.,.. ,.~~ :.:,,,.. <br />1986 JUG! 12 Ald 8 ~ ~. ~ ~ .ynG <br />HESTEP,ti 1ECH?IICRL CENTEr <br />By letter dated June 2, 1986. you requested a sinor aiodifieation to your <br />apprnved ssne plus. The sadifiution iavolves increasing barrier pillar <br />sine aloha the outcrop and split-pillaring in as area south o! the <br />outcrop. these measures are being taken in an attesryt to control <br />subsidenu. <br />Though soss additional coal rill be lost due to these sraaares, there is <br />sufficient evidence presented in the Bocty Mouauin Geotaehnical, Inc. <br />report dated May 23, 1986, supporting the need for thi• sadification. <br />Thls swdifiution should prevt~nt ^t"usiva subsidence and undue bars to <br />the envitonseat. <br />Therefore, the sinor modification is approved rithoat ^tiprlations. <br />Sincerely, <br />1S1`R. S. SC`tmidt <br />Peal W. Arrasith <br />District Manager <br />ce: <br />Mai <br />Ogll sales ~ jset 1srMs <br />C.Beechas:p1:06/04/86 <br />~x~~~~~, <br />ij <br />i <br /> <br />