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TABLE 2. COST COMPARISON OF IN-WELL AIR STRIPPING (ART) AND PUMP AND TREAT <br /> Pump&Treat In-well Air Stripping Notes <br /> INSTALLATION COSTS <br /> Well permitting &installation $13,500 $14,500 <br /> Pilot test $13,000.00 $20,000.00 assumes 1-month stripping test <br /> Equipment purchase&hookup $23,000.00 $41,000.00 <br /> Total $49,500.00 $75,500.00 <br /> OPERATION/MAINTENANCE COSTS <br /> (quarterly) <br /> Equipment rental (carbon vessels, $4,950.00 $2,500.00 <br /> blower, compressor, etc.) <br /> Electricity $300.00 $750.00 <br /> Laboratory analyses $3,000.00 $220.00 <br /> Disposal fees $2,250.00 $0.00 <br /> Sampling, reporting, management $7,000.00 $3,000.00 <br /> Total $17,500.00 $6,470.00 <br /> O&M Costs(yearly) $70,000.00 $25,880.00 <br /> TOTAL FOR INSTALLATION & $119,500.00 $101,380.00 due to lower O&M costs, in-well <br /> 1 YEAR OF OPERATION stripping becomes competitve <br /> if treatment lasts more <br /> than 3 quarters <br />