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I <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 /> !n-situ • Relatively simple design and • Usually no immediate $70,000 to Monthly ground water 24 to 36 <br /> Bioremediation application process• Little or no reduction in hydrocarbon $120,000 total cost and vapor sampling, months <br /> (Ground Water) maintenance required concentrations• Remediation quarterly monitoring, <br /> controls difficult to implement microbiological <br /> Section 8 3 • Regulatory acceptance analysis of samples <br /> difficult to obtain• Waste <br /> discharge permits sometimes <br /> required <br /> Natural •Lower costs than most active •Not effective for higher $6,000 to$20,000 Quarterly ground Unknown <br /> Attenuation remedial alternatives• Minimal contaminant concentrations• annually water monitoring <br /> disturbance to the site• Potential Migration of contamination <br /> Section 8 4 use below structures may occur• Longer time frame <br /> than active remediation • May <br /> not achieve cleanup levels <br /> within reasonable length of <br /> time•Not generally permitted <br /> when free product is present <br /> i <br /> Advanced CeoEnvironmental,Inc <br />