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• STATE OF COLORADO • Roy Romer, Governor DEPARTMENT OF NATURAL RESOURCES DIVISION OF WILDLIFE AN EQUAL OPPORTUNITY EMPLOYER Perry D. Olson, Director 6060 Broadway Denver, Colorado 60216 Telephone: (303) 297.1192 March 10. 1995 Allen Sorenson Division of Minerals and Geology 1313 Sherman Street Room 2l5 Denver, CO 80203 RFCEI~/ED MAR 13 1995 L~1VISIOiI 01 Nlllldl ala 6 UdUiCw RE: Adoitionai Comments -Dahlia North Pit -r=ile rr M-9w-0S3 Dear Allen: ~II I IIIIIII~II~~ II~ 999 J 1' n_ .at For Wildlife - For People I have reviewed the doctttnents you sent over regarding the discrepancies between what was agreed upon at our meeting at Urban Drainage & Flood Control and what is cuttently being proposed. My analysis of the proposed work at the bend in the river is a little different from yours. Based on what is shown on their plan map(attached), it appears that the slurry wall is located approximately the agreed-upon 250' from the river bank in the immediate area of the river bend. As it extends eastward, i[ gets a bit closer to the river and is approximately 225' from the river bank in the eastern portion of the "wildlife area". The riprap trench on the east side of the wildlife area is shown inside the slurry wall and is located approximately 200' from the river's edge. The grade control structure is of course located entirely within the 250' recommended buffer. Your letter to me indicates that you felt these structures were located within l00 feet of the river, so I'm not sure if one of us is looking at the incottect plan or perhaps measuring incorrectly. Give the a call (291-7231) and we'll discuss the discrepancy. In my opinion it is reasonable for tts to request that the slurry wall and rip-rap trench be moved back to the 250' line, which is not really that much of a change by my calculations. I think that the grade control structure is something lve ca^ live with so long as the nl!mber of trees to be. removed when ir. is installed is not excessive. With regard to [he tree/shrub planting numbers, our emphasis has always been for plantings along the river, with plantings between the lakes being of less importance. I believe that Larry Garcia's request to double the proposed tree/shrub plantings was intended to apply to the area along the river more than the other areas. Thus, we would be satisfied with a commitment to plant 800 shrubs and 400 trees in the riverside zone, which is twice the original proposal. Let nle know if you have questions! DEPARTMENT OF NATURAL RESOURCES, James S. Lochhead, Executive Director WILDLIFE COMMISSION, Thomas M. Eve, Chairman • Louis F. Swift, Vice-Chairman • Arnold Salazar, Secretary Jesse Langston Boy4 Jr., Member • Rebecca L. Frank, Member William R. Hogberg, Member • Mark LeValley, Member