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n~ ~ ~ <br />37 E. Colorado Avenue <br />Denver, CO 80210 <br />(303) 722-9067 <br />Environmental Services • Botanical Studies <br /> <br />• Photography ~~~~"` <br />December 11, 1989 <br />Dan Hernandez and <br />Steve Renner <br />Mined Land Reclamation <br />215 Centennial Hldg. <br />1313 Sherman St <br />Denver, CO 80203 <br />RE: Response to Renner memo of December 6, <br />Snyder Quarry Corrective Action Plan <br />Your File no.: M-77-210 <br />Dear Mr. Hernandez and Mr. Renner: <br />~~C~~~~~ <br />DEC 111989 <br />MINED ~p,N~ <br />1989. RECLAI`'tATlON DIVISION <br />After reviewing Steve Renner's Dec. 6 memo to Dan Hernandez <br />regarding some questions on slope stability of areas 2 and 3 <br />along the quarry access road (and a few other items), we <br />have the following responses. These responses are in <br />addition to our responses in the bound copies of the <br />responses submitted in November. <br />FURTHER RESPONSE TO ITEM 17: Although we still disagree <br />with your assessment that areas 2 and 3 are subject to <br />instability if the slope is steeper than 2:1, we agree to <br />remove the materials in these two areas using methods <br />basically similar to those to be used in the removal of area <br />4. We agree to do this because part of the material will <br />need to be removed anyway to produce a rough surface <br />necessary for holding topsoil on such a large and steep <br />area. It would require only a little more work to remove <br />the material back to the original slope. <br />Doing another analysis of the slopes would be far too <br />expensive and time consuming, especially in the winter <br />months, than it would be worth. In this case it is <br />undoubtedly easier and less expensive to just remove it than <br />to do another study. <br />