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Table 7 <br /> Water Treatment Cost Comparison Air Stripping vs Aqueous-Phase GAC <br /> Ruiz Grocery Store <br /> 4491 West Durham Ferry Road <br /> Tracy,California <br /> Option 1 Use air stripper to treat water and polish with aqueous-phase GAC,pass off-gas through vapor-phase GAC, <br /> rent IC engine for first several months to treat soil vapor then convert to blower and GAC <br /> Description Cost Notes <br /> IC engine rental 8,000 assume 2 month rental <br /> Air stripper 12,000 capable of treating hydrocarbon concentrations for RW-1, total flow of 20 gpm max <br /> Blower purhase 3,000 capable of 200 cfm @ 80 in w c <br /> Vapor phase GAC 27,500 buy two 2000 lbs vessels,recharge 3 vessels,assuming IC engine removes 3/5 of gas mass <br /> (treat both h2o&vapor) <br /> Aqueous phase GAC 900 buy two 55 gallon vessels,no recharge <br /> (polish h20) <br /> Total 51,400 <br /> Option 2 Use aqueous-phase GAC to treat water, rent IC engine for first several months to treat soil vapor <br /> then convert to blower and GAC <br /> Description Cost Notes <br /> 1C engine rental 8,000 assume 2 month rental <br /> Blower purhase 3,000 capable of 200 cfm @ 80 in w c <br /> Vapor phase GAC 23,100 buy two 2000 lbs vessels,recharge 3 vessels,assuming IC engine removes 3/5 of gas mass <br /> (treat lust vapor) <br /> Aqueous phase GAC 19,500 buy two 900 lbs vessels,recharge 2 units,assuming system operates for 2 yrs <br /> (treat lust h2o) <br /> total 53,600 <br /> Note This is an abbreviated list of costs because additional costs for equipment common to both options(e g pumps)have not been listed I <br /> 1 of 1 <br />