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1 Corrective Action Plan Montgomery Ward Auto Service Center, Stockton, CA i ' 6.0 IDENTIFICATION AND SCREENING OF TECHNOLOGIES There are many remedial action technologies available to control, remove, treat or dispose of petroleum hydrocarbons present in soils and ground water This section presents a ' feasibility evaluation performed to select the most optimum soil and ground water remedial alternative 6.1 Criteria Used for Screening Remedial Alternatives To evaluate the various remedial alternatives, EAI used the following set of criteria ' ■ Probability of Achieving Cleanup Goals This criteria will evaluate current understanding of the probability of a remedial alternative to achieve the specified cleanup goals I ■ Ease of Implementation This criteria will specify how easy, or difficult, it will be to implement a specific remedial alternative, given the known restrictions and ' site conditions ■ Space Availability This criteria will evaluate if the site has the necessary aboveground space required to implement a specific remedial alternative ■ Disruption to Facility Operations This criteria will evaluate the degree to which a particular remedial alternative will disrupt the ongoing facility operations, either during installation or the maintenance and operation period ® Time of Completion This criteria will evaluate the estimated total time required ' for achieving the specified cleanup goals is Cost of Implementation This criteria will evaluate the cost effectiveness of each remedial alternative screened ■ Corresponding Applicability This criteria will evaluate the possibility and effectiveness of combining each remedial alternative with the corresponding soil or ' ground water alternatives Thus, in assessing soil remedial alternatives, this criteria will evaluate the applicability of each soil remedial technique to be able to effectively combine with some corresponding ground water remedial alternative and vice-versa for ground water remedial alternative ' 6.2 Screening Methodology and Weighting of Criteria EAI developed a weighted sum method as a screening methodology for the various remedial aiternauves being eVdWaled This method involves the following two basic components 1) assign a relative weight to each criteria used for selection, and 2) assign a ' grade against each criteria for each remedial alternative EAI assigned relative weights (0-10) to each criteria based on its relative importance to the overall goals and objectives for the protect Ttie relative weights assigned did the ieasoiis for the assignment are as follows Protect No 1232 ' SAB WORD 1232CAP