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ORC TECHNICAL BULLETIN # IL1 <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 /> DRC Oxygen Barrier Fust Year Subsequent Years <br /> Installation $45,000 $0 <br /> • Annual Operating Cost 24,000 18,000 <br /> Total $69,000 $18,000 <br /> Pump-and Treal - <br /> Installation $132,000 $0 <br /> Annual Operating Cost 94,000 36,000 <br /> Total $226,000 536,000 <br /> Au-Spargaig Barrier with SVE <br /> Installation $127,000* $0 <br /> Annual Operating Cost $29,000 $29,000 <br /> Total 5156,000 529,000 <br /> Air-Spargrng Barrier without SVE(If permissible) <br /> Installation $61,000' s0 <br /> Annual Operating Cost 14,000 14,000 <br /> Total 575,000 514,000 <br /> *Plus cost of pilot test,if necessary Experts often advise against implementing an air spargmg 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 /> Blorertledletion ProdUCtS 27130A Paseo Espada, Ste 1407, San Juan Capistrano, CA 92675 <br /> Phone 714-443-3136 Fax 714-443-3140 <br />