TABLE ES-3

COMPARISON OF TYPICAL UNIT COSTS FOR REMEDIAL TECHNOLOGIES AT VARIOUS
CS-137 CONCENTRATION INTERVALS^a

Technology	67 to 600 pCi/g Cs-137	600 to 60,000 pCi/g Cs-137	>60,000 pCi/g Cs-137
Soil Cap	$227,000/acre	$227,000/acre	$227,000/acre
RCRA Cap	$614,000/acre	$614,000/acre	$614,000/acre
Engineered Cell	$2,040,000/acre	$2,040,000/acre	$2,040,000/acre
Excavate and Transport via: -Railb -Truckc	$240/cy N/A	$240/cy N/A	N/A $1410d/cy
Disposal at: -Commercial Facilityb -DOE Facilityc	$210/cy N/A	$210/cy N/A	N/A $900/cy
Soil Washing	$970e/cy	$970e/cy	N/A
Vitrificationf	$800/cy	$800/cy	$800/cy

^aUnit costs are based on the quantity of material that is remediated and are not intended for use in developing detailed cost estimates. Also, unit costs do not include costs for predesign soil sampling, consolidation of contaminated materials, long-term maintenance and monitoring, data review and reporting, contingency allowances, or other additional tasks that may be combined into an overall remedial alternative.

^bUnit costs are based on transport and disposal at Envirocare.

^cUnit costs are based on transport and disposal at Hanford.

^dUnit cost includes expense for cement stabilization of soils prior to shipping.

^eUnit cost includes expense for cement stabilization and off-site disposal of soils. This technology is not assumed to be applicable to soils with >2800 pCi/g Cs-137.

^fIn Situ Vitrification was used for costing. The form of Vitrification to be used at BNL will be determined during remedial design.