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• <br />Attachment 3.6. Topsoil Rate <br />Topsoil hours = 4,445.1 (original) + 530.9 (PR-1) = 4,976.0 <br />Scraper shifts = (4,976.0 hrs)/(8.0 hrs/ehift)(1) 622.0 <br />Scraper months = (622 shifts)/(66 shifts/m o) = 9.42 <br />Lease cost (2) _ ($62,030/mo)(1.05)(9.42 mos) _ $613,538.73 <br />Mob/Demob (3) _ ($1,827 each trip)(2)(1.05)4 <br />(2 scrapers) _ $ 8,882.92 <br />Avg Lease Rate = (613,538.73 + 8,882.92) - $ 125.08 <br />4,976 <br />Operating Cost (Blue Book) _ <br />Labor (4) _ <br />Total Topsoil.Rate = <br />$ 92.95/hr <br />$ 20.85/hr <br />$ 238.88/hr <br />(1) Availability (50 min hrs) is accounted for in the topsoil hours calcula- <br />tion (see Attachment 3.5). <br />(2) Rental Rate Blue Book 657E (P-P) rental rate for triple shift, five <br />day/week operation (66 shifts/mo). <br />(3) Quoted Mob/Demob rate escalated to 1987. <br />(4) Includes base rate from Interational Agreement ($13.93/hr), $0.30/hr <br />awing shift differential, $0,40/hr graveyard shift differential, and 15% <br />for FICA, fringes, etc; also reflects 8 labor hours per 6.25 equipment <br />hours. <br />JMM/jb 5/87 <br />