ARCHIVED REPORTS_ROY'S AUTO - HISTORICAL

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APPENDIX VIII 3 . Reaulatory Acceptance The Regional Water Quality Control Board has provided input during the investigations at the site and supports the preferred alternative. The Air Pollution Control District has permit authority over emissions from the SVE treatment system and their requirements will be met . (If this is the Final RAP with public comments received, the acceptance of the selected alternatives should be generally described. ) ► . Community Acceptance The community has been involved through the Public Participation Plan. One community meeting has been held so far, and the community expressed the desire to take remedial actions that will stop the spread of contamination. The community will have the opportunity to comment on the draft RAP through the 30-day comment period and at the public meeting. Table 6 provides a comparative analysis of the eight alternatives in relation to the nine criteria. 0 . The Procosed Remedy (or Selected Remedv if this is a Final RAP) Based upon consideration of the requirements of Health and Safety Code section 25356 . 1; the detailed analysis of the alternatives using the nine criteria, DISC has determined that Alternative #3 (Soil Vapor Extraction and RCRA •Equivalent Cap with Slurry Walls) is the proposed remedy for the site . The first step in implementing this alternative, will be to construct a slurry wall along the site boundaries to minimize the migration of contaminants . The wall will be constructed by excavating a trench approximately 25 feet deep and 2 to 4 feet wide around the perimeter of the site . The trench will be filled with a slurry of soil mixed with bentonite clay. Rubble uncovered during excavation of the trench will depending on the level of contamination be transported off-site to an appropriate RCRA facility or disposed onsite . Foam will be applied as necessary to control emissions during construction of the slurry wall . 43 - 11/16/95