Laserfiche WebLink
EXHIBIT L RECLAMATION COSTS <br />This reclamation cost estimate in based on the assumption that <br />there will be no more that 15.00 acres t of Plant Site disturbed at <br />any one time. In addition, up to 85 acres of the Bluff Lake area may <br />need to be revegetated where the pit run gravel is stored. It is also <br />based on a worse case scenarfo i.e., at a time when the greatest area <br />will need some form of reclamation. At that time we will have to <br />respread 89,943 cubic yards of topsoil, shape 15.00 acres of plant <br />site area and revegetate 100.00 ac. t. The table below outlines the <br />various areas of disturbance at that time. The amount of topsoil that <br />will be re-spread is based on an average of 6 inches. A 631-D motor <br />scraper will be used to resoil the area and a 1406 motor grader will <br />be used to shape the seed bed. The cost to construct the bentonite <br />slurry wall is included using the per foot cost suggested by the <br />Division. These figures are then used in the calculations for the <br />bond amount. The revegetation cost figure includes fertilizer, grass <br />seed, mulch and drilling costs. <br />STAGE TOTAL SOIL DEPTH <br />NEEDS REBOILING 100.00 6" <br />NEEDS SEEDING 100.00 <br />GRADING PLANT SITE 15.00 <br />Longhorn Slurry wall 9898 lft by 30 ft depth ave. <br />REBOIL @ 6"(sf 1.12) 89,943 CiJBIC YARDS <br />Secondary revegetation 258 <br />EST/MATED UN/T COSTS FOR RECLAMAT/ON /TEMS: <br />unit Cost <br />1. Revegetation includes grass seed mix, mulch <br />And fertilizer and labor to drill $350.97/AC. <br />2. Re-spreading soil and/or growth media with <br />631-D Motor Scraper, Hau! distance less than 500 0.53/YD; 1~ <br />3. Grade and shape 15.0 acres, 140G motor grader 48.26 /ac ?~ <br />4. Slurry wall installation cost per face foot $3.00 <br />RECLAMAT/ON COSTS <br />1. Revegetation, 100.00 ac @ $350.97/ac $ 35,097.00 <br />2. Resoiling, 89,943 yd' @ 53C/yd3 47,701.64 <br />3. Grading and shaping 15.00 ac. @ $48.26/ac 723.86 <br />4. Slurry wall installation $890,820.00 <br />5. Secondary revegetation loo.oo ac x 258 x 5350.97 8.774.25 <br />Net Total $983,116.75 <br />6. Indirect costs <br />Mobilization 2,679.04 <br />insurance, Bond, & Profit 120,456.33 <br />7. Administration costs 49,155.84 <br />TOTAL ESTIMATE $1,158,087.01 <br />RECOMMEND BOND BE SET AT S 1,160,000.00 <br />1/ Figured using Cat Handbook and rental costa from local sources for 838 effi- <br />ciency, 631-D motor scraper, for eastern Colorado <br />2/ Figured using Cat Handbook and rental coats from local sources for 838 effi- <br />ciency, D-9 dozer, for eastern Colorado <br />13 <br />