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<br />The culvert installation in Bush Draw on the BLM <br />right-of-way has been in service more th 3 years <br />(construction took place prior to WFC taking <br />control of the right-of-way). Since the time of <br />construction, the culvert has effectively carried <br />runoff with no known overflows or washouts. WFC <br />maintains that resulting from historical performance <br />the culvert is an adequate structure both environ- <br />mentally and structurally. However, the 24" culvert <br />will be taken out and replaced with a 36" ~ culvert. <br />Wyoming Fuel will maintain the culvert in Bush Draw <br />monthly. Calculations for its sizing are found in <br />Attachment 1 of this Addendum. <br />2.05.3(4)(d) Designs for Pit #1 water control are included in <br />Attachment 2 of this Addendum. <br />2.05.3(6)(b) Since the main haul road providing access to the <br />county road also serves the M&T oil well, it is <br />unlikely that the BLM will require this road to be <br />reclaimed. Only approximately 1000 ft of the <br />presently detoured road will be reclaimed at the <br />following estimated cost: (1.2 acres) ($1501/acre) _ <br />$1801 i$1501/acre derived in April 14, 1981 <br />application). <br />There are five ponds to be reclaimed by dewatering, <br />desilting, redistributing the dam embankment material <br />to blend with adjacent contours, topsoiling and other <br />revegetation procedures. Most dirt moving for pond <br />reclamation will be done with a Caterpillar D-9 <br />dozer. Development of D-9 operating costs is summar- <br />ized at the end of this paragraph. The approximate <br />costs for pond reclamation are estimated as follows: <br />Pond #1 Area Disturbed: 2.0 acres <br />Embankment Volume: 5185 BCY <br />Dozer to distribute embankment material <br />(150 ft push) 5185 BCY x $.11/BCY = $570 <br />Topsoil and revegetate 2.0 acres x $1501/ <br />acre = $3002 <br />TOTAL POND #1 = $3572 <br />Pond #2 Area Disturbed = .5 acres <br />Embankment Volume: 926 BCY <br />926 BCY x $.11/BCY = $102 <br />.5 acres x $1501/acre = 751 <br />TOTAL POND #2 $853 <br />Pond #3 Area Disturbed: .2 acres <br />Embankment Volume: 444 BCY <br />444 BCY x $.11/BCY = $ 49 <br />.2 acres x $1501/acre = 300 <br />TOTAL POND #3 $349 <br />-3- <br />