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• r <br />~~,~F//~~~~0,~9 DEPARTMENT OF NATURAL RESOURCES <br />e +Ti'YRY O David H. Getc hes, Gx ecutive Director <br />o ~ MINED LAND RECLAMATION DIVISION <br />..~~ . <br />* ~ % • DAVID C. SHELTON, Director <br />' /876' <br />a~~n:,rdo ~a,r,~„ ~ <br />Grm.~rnor _ <br /> <br />September 29, 1983 <br />Mr. Larry O'Brian <br />Environment, Inc. <br />9989 West 60th Ave. <br />Arvada, Colorado 80004 <br />Re_ The Robinson Brick and T11e Company, Cheiftan South Mine <br />File No. 81-146 <br />Dear Mr. O'Brian: <br />III IIIIIIIIIIIIIIII <br />999 <br />The Division has thoroughly reviewed this permit application and has the <br />following questions, comments, and suggestions that are intended to bring <br />this application into compliance with the Nined Land Reclamation Act. <br />As you know, this recently submitted application 1s significantly <br />different from the 1981 permit application because of the reduction in <br />acreage from 280.25 acres to 131.51 acres. Along with this reduction in <br />permitted acreage there has also been changes in the mining and <br />reclamation plans. The Division has raised a number of questions <br />pertaining to the mining and reclamation phases and to the seed rtlixtures <br />proposed to be used on this site. <br />As you know, the Board's consideration of this permit application has <br />been rescheduled from the November Board meeting to the October Board <br />meeting. To allow for staff review of your responses, please respond to <br />the following by October 14, 1983. <br />Exhibit D - Nininu Plan <br />1~ On page 10 of the text, the operator specifies three very good <br />species to be used 1n the event it is necessary to seed a topsoil <br />stockpile. The seeding rate specified would plant seeds at the rate of <br />46 seeds per square foot. This rate 1s adequate for drill seeding, but <br />is well below the Soil Conservation Service recommended 80 seeds per <br />square foot when broadcast seeding. The Division suggests the following <br />seeding rate for broadcast purposes that exchanges slender wheatgrass <br />(native) for crested wheatgrass (introduced). The Division made this <br />substitution because slender wheatgrass is also in the permanent seed <br />mixture. <br />423 Centennial Building. 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />