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1 <br />• ~}~ <br />.f ~~ <br />E`. <br />Mr. Bi11 Roble <br />Adolph Coors Company <br />Department 807 <br />Golden, Colorado 80401 <br /> <br />STATE OF CCLOAaDO 4~•.~•:ann~~ <br />DEPART.Y.ENT OF NA7URAl RESOURCES <br />O. Mon[e Psuoe, E.ec~t~•e Oar error <br />~i CV ED L.-~\ D R ECI.:~~I:1'I'(O~ -`~ <br />a23 Centenn~ai BuitCing, 7313 Sherman Street <br />Denver, Colorado 80203 Tel. (303) 866-3567 <br />David C. Shelton <br />Director <br />July 21, 1982 <br />RE: Stipulation to Keenesburg Mine Permit C-028-8I <br />Dear Mr. Roble: <br />The Keenesburg Mine Permit C-02B-81 contained a stipulation requiring the <br />establishment of a means of species diversity evaluation, and applicable •[„ <br />• success standards (Stipulation M11). ~' <br />~'",' <br />4 <br />Sn response to your letter of July 8, 1982 we are proposing the following wording <br />to resolve your concerns and Stipulation k11: <br />~y~ The operator shall establish a minimum of seven (7) perennial species, <br />of which four (4) are warm season grasses, tsvo (2) are cool season <br />grasses, and one (1) is a forb, to be neasured using relative frequency <br />(taken by species). No one component (species) of the above should <br />tromprise greater than 40: relative importance, nor Zess than 3z relative <br />~ importance. This species diversity standard is subject to periodic <br />''( reevaluation and adjustment as warranted by site-specific data provided <br />by the operator to the Division. <br />i <br />Please indicate by August I6, 1982 or sooner whether you agree with the wording. <br />Sf you would like to discuss this please contact me. <br />../ ~ ~ " <br />Robert G. Liddle <br />Reclamation Specialist <br />• cc: Nike Savage, MLRD <br />John Nelson <br /> <br />