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TABLE 5 <br /> Soil and Ground Water Corrective Action Alternatives <br /> MARLOWE PROPERTY <br /> 4648 E Waterloo Road, Stockton, California <br /> Estimated Costs Typical Es imated <br /> Method Advantages D.sadvantages (incl Monitoring Monitoring D i anon <br /> and Maintenance Requirements <br /> In-situ •Relatively simple design and •Usually no immediate $105,000 to Monthly ground water 24 to �6 <br /> Bioremediation application process•Little or no reduction in hydrocarbon $135,000 total cost and vapor sampling, mon s <br /> (Ground Water) maintenance required concentrations•Remediation quarterly monitoring, <br /> controls difficult to implement microbiological <br /> Section 7 3 •Regulatory acceptance analysts of samples <br /> f difficult to obtain•Waste <br /> discharge permits sometimes <br /> requ i red <br /> Natural •Lower costs than most active •Not effective for higher Quarterly ground Unknown <br /> Attenuation remedial alternatives•Minimal contaminant concentrations• water monitoring <br /> disturbance to the site• Migration of contamination <br /> Section 7 4 Potential use below structures may occur•Longer time frame <br /> than active remedial ion•May <br /> not achieve cleanup levels <br /> within reasonable length of <br /> Lime•Not generally permitted <br /> when fret product is present <br />