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2 wheatgrass are recommended, both of which will establish readily and quickly. This temporary seeding should be done at a rate of 15 total pounds PLS per acre. It is highly recommended that the applicant coordinate weed treatment plan development and implementation with Ron Broda, Vegetation Weed Management Specialist with the Weld County Pub&c Works Department at (970) 356-4000 X 3770 to ensure compliance with the Colorado Noxious Weed Act. Reclamation Re-Ve etg anon In areas to be reclaimed, it is recommended that 12 inches of topsoil be spread in lifts not to exceed 4 inches and worked into the slopes to ensure good adhesion and to minimize soil creep. In order to re-establish normal levels of microbial activity in the soil, compost at the rate of one to two cubic yard per 1000 ftZ should be mixed with the soil. If compost is not applied, after topsoil replacement and before grass seeding, the soil should be tested to deteanine the need for additional fertilizer. Recommended grass seeding dates are from November 1~ through April 30"s; seeding should be done in unfrozen soil. A good quality grass seed drill with an agitator, depth bands and press wheels is recommended. The following native grass seed mix and application rate is recommended for re-vegetation in the soil types found in the mine area. It is based on NRCS "critical area" seeding rates that are double our normal rates. Lupton Lakes Resource Total LBS of Common Name 100% PLS/Acre % in Mix PLS needed per acre Western wheat rass Arriba, Barton 16.0 20 3.2 Sideoats rams Vau hn, Butte) 9.0 20 2.0 Blue rams (Hachita, Lovin ton 3.0 25 0.8 Green needle rass Lodorm 10.0 15 1.5 Buffal rass (Bur 16.0 20 3.2 Total 100% 10.7 Note: If seed is broadcast, recommended rate should be doubled. We recommend mulching re-vegetated areas with clean weed-free straw or native hay. It should be applied at a rate of 4,000 pounds per acre and crimped into the soil to anchor it. Crimping should be cross slope or on the contour, if possible. The State of Colorado has a list of certified weed-free straw available on the Internet or it can be obtained through local county extension service offices. All surface water should be diverted away from the re-vegetated slopes to a point where it can safely flow down slopes without the potential of serious soil erosion.