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TABLE 7 <br /> SOIL AND GROUND WATER CORRECTIVE ACTION ALTERNATIVES <br /> Elkhorn Country Club <br /> 1050 Elkhorn Drive, Stockton, California <br /> Estimated Costs Typical <br /> ix�c1 Estimated <br /> ges <br /> aMonitorig <br /> Monttormg and Duzahon <br /> :: ', �Equtrements . <br /> e o van a es isa want- <br /> .,,.. ;: .Mairitenat�ce) <br /> In-situ Air Sparging' • Cleanup technique compatible • Initial equipment/design costs $ 50,000 to Monthly ground water 6 to 18 months <br /> with site conditions • Combines can be.costly• capitol $75,000, depending depth measurements; <br /> well with SVE•Readily upon treatment monthly sample <br /> available equipment• Site period. collection. <br /> conditions are conducive for <br /> IAS treatment• Little equipment <br /> maintenance required. <br /> In-situ • Relatively simple design and •Usually no immediate $60,000 to Monthly ground water 12 to 36 <br /> Bioremediation application process •Little or no reduction in hydrocarbon $150,000 total cost and vapor sampling; months <br /> (Ground Water) maintenance required. concentrations•Remediation quarterly monitoring; <br /> controls difficult to implement microbiological <br /> •Regulatory acceptance analysis of samples. <br /> difficult to obtain• Waste <br /> discharge permits sometimes <br /> required. <br /> Pump and Treat •Rapid reduction in high •High volumes of extracted $200,000 to Quarterly or monthly May vary; <br /> concentrations water will require disposal• $450,000"total cost monitoring; analysis typically 12 to <br /> Typically unable to achieve of extracted water. 24 months. <br /> cleanup goals•Usually not <br /> cost effective for larger plumes <br /> Equipment can be costly. <br />