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• s <br />Page 2: <br />Mr. Louis Bucher <br />September 5, 1984 <br />~3. To what depth and over what parts of the permit area is top- <br />soil available for stripping and salvage? <br />4. Any topsoil stockpiled for one growing season or longer should <br />be stabilized against wind and water erosion with a perennial <br />grass cover crop. I suggest the use of a grass from your re- <br />vegetation mixture such as Pubescent wheatgrass at a drilled <br />rate of 14 pounds PLS/acre. <br />Exhibit E <br />I1. Do you know if the culvert under County Road "L" will be adequate <br />to handle the drainage from the operating (and finished) pit and <br />the existing roadside drainage? You may wish to plan to increase <br />the size of the culvert and consider the use of a berm to slow <br />runoff and prevent sediment from leaving the permit area. Please <br />clarify your plans in this regard. <br />2. Our Division vegetation specialists strongly advise against plant- <br />ing only one species on a site for purposes of reclamation. They <br />also inform me that Crested wheatgrass should probably not be a <br />major component of any seed mix. Therefore, I recommend that you <br />follow the recommendations of the Soil Conservation Service, but <br />commit to planting both species mentioned. A suggested mixture <br />would be Crested wheatgrass at 2.5 pounds PLS/acre and Pubescent <br />wheatgrass at 11.5 pounds PLS/acre (both rates drilled). This <br />would give a mixture of about 25% Crested wheatgrass and 75% Pube- <br />scent wheatgrass. Given the aggressive growth of the Crested <br />wheatgrass, both species should grow on the site. The S.C.S. <br />may have another mixture they can recommend to you. Please clar- <br />ify your plans here, as well. <br />3. At this point, the reclamation plan is to re tops oil and revegetate <br />~ the permit area to restore it to dry land grazing. If a landfill <br />is to actually occur on the site before re tops oiling and revege- <br />toting it, Dolores County will need to either revise or amend the <br />permit at that time. Please let me know if you have another under- <br />standing of this matter. (Please be advised that changing the per- <br />mit in this way would not be difficult to do at some future date.) <br />4. What is the planned topsoil replacement depth on the site? <br />I have no further questions or comments on this application. Please <br />feel free to call me if you have any questions. <br />Sincerely, <br />~' <br />Mark S. Loye <br />Senior Reclamation Specialist <br />