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:--. <br />III IIIIIIIIIIIII III <br />999 <br />STATE OF COLORADO <br />Roy Romer, Govei <br />DEPARTMENT OF NATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />FRED R. BANTA, Dlreetor <br />DATE: March 6, 1989 <br />T0: Cathy Begei _ <br />FROM: Carl Mount (~ ~G~~ <br />RE: Bourg Mine Seed ~dixture, Permit C-81-021 <br />As you requested, I have made a comparision of the approved versus the actual <br />seed mixtures used on the Bourg Mine for their 1988 revegetation efforts. As <br />you will see from the attached table, the seed mixture used on the mine site <br />closely approximates the approved seed mixture. Hard Fescue (Festuca ovinq <br />duriuscula) was substituted for Green Needlegrass (Stipa viridu a TF1s is <br />an accep able substitution since both are native, cooTseason unch grasses. <br />Douglas rabbitbrush (Chrysothamnus viscidiflorus was left out probably because <br />of unavailable seed. owever, a amoun o tcer milkvetch (Astragolus <br />cicer) seed was doubled to somewhat compensate for this. The actua~ber of <br />pure live seed (PLS) per square foot remained comparable with 136.5 seeds per <br />square foot approved and 134.0 seeds per square foot applied. The actual <br />applied seed mixture is acceptable. <br />I could not find anvthinq in the permit document that specified an approved <br />seed mixture for the loadout (Northgate) area. I believe the mixture that was <br />used is acceptable. <br />From my telephone conversations with Kay James, it appears that no areas were <br />seeded with the approved "Saline Soil Seed Mixture" because no areas of saline <br />soils (Electrical Conductivity of the saturation extract greater than 4) were <br />found. <br />Attachment <br />3873E/scq <br />215 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866-3567 <br />