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VI\V A 16-v11AVIvl1L UVLLL 111• T7- ti.i <br /> Oxygen Release Compound, ORC® <br /> Cost Comparison <br /> Mechanical Treatment Methods <br /> Assumptions: <br /> 10 ppm dissolved phase BTEX. Plume width of 80 ft. with seepage velocity of.3 ft/day. <br /> 8 feet to groundwater and 12 foot contaminated saturated zone. No floating product. <br /> Oxygen:Carbon Ratio = 3:1. <br /> The site is assumed to be developed with roads, sewers, and already installed 220 volt/3 phase power available at no <br /> additional cost for installations, permits,electrical distribution,or equipment(for those treatment methods requiring sewer <br /> or electricity). In addition, it is assumed that no buildings or general area fencing are required,but above-ground process <br /> equipment is fenced. <br /> Special testing necessitated by the nature of the treatment and routine BTEX analysis are included. Additional standard <br /> monitoring costs for the site are excluded, since they are assumed to be site specific and determined by local regulatory <br /> agencies. (Note that no testing of off gases from air sparging is provided in the estimates.) <br /> ORC Oxygen Barrier First Year Subsequent Years <br /> Installation $45,000 so <br /> Annual Operating Cost 24,000 18,000 <br /> Total 569,000 $18,000 <br /> Pump-and-Treat — <br /> Installation $132,000 $o <br /> Annual Operating Cost 94,000 36,000 <br /> Total 5226,000 536,000 <br /> Air-Sparging Barrier with SVE <br /> Installation $127,000-- $o <br /> Annual Operating Cost $29,000 529,000 <br /> Total S156,000 S29,000 <br /> Air-Sparging Barrier without SVE(If permissible) <br /> Installation S61,000* $0 <br /> Annual Operating Cost 14,000 14,000 <br /> Total 575,000 S14,000 <br /> *Plus cost of pilot test,if necessary. Experts often advise against implementing an air sparging treatment without a field <br /> pilot test which typically costs$10,000 to$30,000. Many reputable consulting firms refuse to install air sparging systems <br /> without pilot testing due to the importance of site-to-site variability in system performance, and third party liability concerns. <br /> REGENESIS ----- <br /> ------------------------------------------------------------------------------------------ <br /> Bioremediation Products 27130A Paseo Espada, Ste 1407, San Juan Capistrano, CA 92675 <br /> Phone: 714-443-3136 Fax: 714-443-3140 <br />