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NOTICE OF REQUIRED MODIFICATIONS TO REMEDIAL ACTION ORDER <br /> 1. In Exhibit D, revise the preamble to read as follows: <br /> Discharges to the existing surface impoundment shall be ceased to <br /> comply with the requirements of the Toxic Pits Cleanup Act (TPCA) <br /> by June 30, 1988. <br /> 2. In Exhibit D, revise item 1 to read as follows: <br /> 1. Cease placement of liquid hazardous waste in the surface <br /> impoundment by March 15, 1988. <br /> 3. In Exhibit D, revise item 3 to read as follows: <br /> 3. Characterize the sludge on the surface impoundment bottom <br /> and interior berms. <br /> 4. In Exhibit D, revise item 6 to be read as follows: <br /> 6. Characterize the soil and sediments (if any) , and if free <br /> liquids are present, eliminate the free liquids through <br /> enhanced drying or stabilization processes. <br /> 5. In Exhibit D, revise item 7 to read as follows: <br /> 7. Install a synthetic membrane cover over the pond invert <br /> which provides 1 x 10-6 cm/sec (max) permeability and which <br /> allows for collection and removal of accumulated rainfall <br /> for processing. <br /> 11654.000 <br />