Laserfiche WebLink
MINREC, INC. <br />2768 COMPASS DRIVE, SUITE 101 IIIIIIII'Illlllllll <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (303) 245-4101, FAR 242-7908 <br />RED CANYON MINES <br />March 23, 1994 <br />C. E. Johnston ~~r',FI~/C!~ <br />Division of Minerals and Geology <br />1313 Sherman St., Room 215 MAR 2 5 1994 <br />Denver, CO 80203 <br />Re: Stipulation No. 11 - TR-011 Diviswn u, ,.,,,,C,,,, a u~~.ogy <br />Refuse Pile Upper Diversion Ditch <br />-Permit C-8i-034 - - - - - - - <br />Dear Ms. Johnston: <br />The Division's letter dated March 22, 1994, transmitted two <br />additional adequacy concerns for the referenced technical revision. <br />Following are Minrec's responses to the Division's additional <br />adequacy concerns: <br />6. The following seed mix will be used to vegetate the diversion <br />ditch. Streambank wheatgrass and Mountain brome were selected <br />because they are both considered valuable erosion control <br />grasses. Western wheatgrass was chosen because it starts <br />growth in early spring. Basin wildrye was selected because it <br />is a salt tolerant species. <br />Broadcast <br />#/Acre PLS/SF <br />Streambank wheatgrass, AaroDVron rioarium 4.0 14.3 <br />Mountain Brome, Bromus marainatus 5.0 10.3 <br />western wheatgrass, Aaroovron smithii 5.0 12.6 <br />Basin wildrye, Elymus cinereus 4_5 13.4 <br />Totals <br />18.5 50.6 <br />8. The ditch will be stabilized in the long run with vegetation. <br />After the ditch is seeded, mulch and polypropylene netting <br />will be applied. The mulch and polypropylene netting should <br />provide good interim erosion control until the vegetation is <br />established. <br />Please call if you have any questions. <br />Sinceres~ <br />Ji im Stover, P.E. <br />Chief Engineer <br />