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eme <br /> Continental Materials Corporation <br /> Transit Mix Concrete Co. 440 S. LaSalle St. Suite 3100 <br /> Chicago IL 6060S <br /> September 22, 2017 <br /> Division of Reclamation, Mining and Safety <br /> Attention: Mr. Tim Cazier <br /> 1313 Sherman St. Rm 215 <br /> Denver, CO 80203 <br /> RE: Technical Revision, Daniels Sand Pit #2, Permit No. M1973-007SG <br /> Dear Mr. Cazier: <br /> Enclosed is a technical revision JR) for the Daniels Sand Pit #2. Permit number M1973-007SG. <br /> This TR is requesting approval to add QuickGard® sterile seed to the seed mix for the new wash <br /> fines disposal facility(embankment) in the East Pit. Also, if the product proves to be an <br /> adequate erosion control material, we propose to use it on other Daniels Sand Pit #2 areas to <br /> control erosion. <br /> The intent is to broadcast the seed QuickGard®along with the already approved perennial seed <br /> mix. QuickGard® is intended to act as a sterile cover crop to help stabilize the slopes of the new <br /> waste fine disposal pond while the perennial grass species become established. We intend to <br /> seed the entire west facing out-slope and half way down on the interior face of the new waste <br /> fines disposal embankment. <br /> If the product exhibits satisfactory slope stabilization qualities during the time of perennial plant <br /> species establishment (2 to 3 years), we propose to add it as a component of other Daniels Sand <br /> Pit #2 seed mixes for specific slopes undergoing reclamation. Its use in slope reclamation will <br /> likely be limited to south and west facing slopes and slopes with long, unbroken runs in excess of <br /> 100 feet. It should also be useful in stabilization of drainageways during perennial plant <br /> establishment. It may also be used on sites where reclamation retreatment is necessary to repair <br /> poor or inadequate perennial seed establishment due to excessive site erosion. <br /> On certain areas where it is safe to traverse across the slope and drill seed, the product may be <br /> drill seeded with the approved perennial plant species. The drill seed rate will be between 8 and <br /> 15 lbs. per acres dependent on erosion control needs, slope gradient and soil type. We anticipate <br /> planting the product at higher rates on sandy slopes versus slopes with a higher clay or loam <br /> content. <br /> We will evaluate its performance over the next several years and seek concurrence from the <br /> DRMS on whether its use should be continued. <br /> 1 <br />