| OCR Text |
Show s. transported will soil Contaminated to a consolidated be and' repository for storage. The estted volume of soil that may be removed from the channel between 3200 and 4S00 West is 92,000 cubic However, this is not a limit to the amount to yards. be removed. The soil volume requiring removal in the It is expected, channel below 3200 West is uncertain. to be however, significantly less than ,the upper reaches. ze conditions prohibit adequate removal of contaminated soil, second approach to stabilizing the channel,and preventing exposure is constructing a concrete channel .. if this ana when determine approach is that Conditions may warrant concrete appropriate.. side include channelization slope stability and roads or buildings such as to structures proximity adj acent to the channel. This option will also require, some soil removal in the channel and up the embankments as described above. However, concrete channelization will not be used unless to necessary adequately stabilize the channel to prevent contaminant'migration. will EPA A retention the or settl,ing basin on the up gradient end of remediated be to may necessary prevent Removal the is not X"econtamination, completed through the upper reach of the. channel. area ;i£ B. ots 9000 South/320Q West: The Removal Action. calls for removing a minimum of' lS'to 24 inches of contaminated soil (lead greater than 2000 Additional sampling mg/Kg) exact boundaries. identify is . . Soil excavated f.rom this t.o the 2. The to must be .transported f'or storage. be restored to original grade and re All haul roads and soil staging areas area must must be rehabilitated. ' . : r , - ' Specific requirements that must b addressed in the Work Plan are III. however, area approved repository -'vegetated. . necessary, described below. REMOVAL WORK PLAN Respondent shall prepare a ,draft Work Plan for submittal EPA 30 days after the effective 'date of the Order. The Work Plan must describe how the approved Removal action for The to ,. |
