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� i� ■w� ■�� ■�� w �� ■sir ■sir �� wwi�■ ■■�w� tet• ti. � <br /> TABLE 10 <br /> Soil and Ground Water Corrective Action Alternatives <br /> NEWFIELD PROPERTY <br /> 107 North School Street, Lodi, California <br /> Estimated Costs Typical Estimated <br /> Method Advantages Disadvantages (incl Monitoring Monitoring Duration <br /> and Maintenance) Requirements <br /> In-situ Soil Vapor • Easily combined with other Greater than 40%reduction of $40,000 to$100,040 Weekly and monthly 10 to 20 <br /> Extraction methods(i e IAS)• Readily contaminants generally not annually vapor sampling,semi- months <br /> available equipment• attainable• Large initial annual or annual soil <br /> Section 71 Conducive site conditions• equipment cost• Supplemental sampling <br /> Relatively rapid cleanup period fuel required and costs can be <br /> (10 to 36 months)•Can cleanup excessive as contaminants <br /> contaminated soil under decrease-Air permitting <br /> structures/roads required• Only non-saturated <br /> soils cleaned up <br /> Excavation • Theoretical removal of 100% • Cost-effectiveness decreases $105,000 to$150,000 Monitoring of l month,6 to <br /> of contaminants• Relatively with depth of contamination • for excavation, excavated soil, 12 months if <br /> Section 7 2 short remediation period• Cannot cleanup under disposal and backfill collection of soil treatment is <br /> Effective remediation of all soil structures• Excavated soil samples upon requtred <br /> types must be treated or disposed- completion of <br /> Backfill material and excavation <br /> compaction costs can be <br /> excessive <br /> In-situ • Relatively simple design and • Regulatory approval can be $70,000 to$160,000 Monthly vapor 18 to 36 <br /> Bioremediation operation• Short treatment difficult to obtain•Additional total cost monitoring,quarterly months <br /> (Soil) period,usually 12 to 36 months inoculations and nutrient soil sample collection, <br /> • Works well in most soil types supplementation sometimes micro biological <br /> Section 7 3 where no biotoxicity is present necessary• Less effective in analysis of samples <br /> soils with high concentrations <br /> of hydrocarbons <br /> �� Advanced GeoEnvironmental,Inc <br />