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_ 1 <br /> Y <br /> L <br /> TABLE 11 ` <br /> Soil and Ground Water Corrective Action Alternatives <br /> CALIFORNIA FUELS CARDLOCK STATION <br /> 2402 Pacific Avenue,Stockton,California s <br /> F <br /> , .�»;r 'T "tiii;qluMlredrtieiits;�" <br /> E,tlmated Cost (incl ngerrAdvantages Dsadvantags Mcitognd . . <br /> ` a n 'Eg4t�i_i_n'r a <br /> ted t)urad�qar. <br /> si <br /> i <br /> r <br /> Maintenance <br /> b <br /> it-situ Air •Cleanup technique compatible with •Initial cquipment/dcsign costs can be costly $10,000 to$17,500 Monthly ground water 18 to 24 months <br /> parging site conditions•Combines well with •air flow channeling-Effectiveness decreases annually depth measurements, ` <br /> SVE•Readily available equipment• with less permeable material monthly sample <br /> Section 9 1 Site conditions are conducive for IAS collection t, <br /> treatment•Little equipment <br /> maintenance required t <br /> _ i <br /> f <br /> Pump and Treat •Rapid reduction in high •High volumes of extracted water will $498,536 total cost Quarterly or monthly 12 to 24 months <br /> concentrations•Prevent spreading of require disposal•Typically unable to achieve monitoring,analysts of <br /> ection 9 2 plume cleanup goals•Usually not cost effective for extracted water <br /> larger plumes•Equipment can be costly <br /> n-situ •Relatively simple design and •Usually no immediate reduction in $61,000 to Monthly ground water Unknown" <br /> ioremediatton application process• Little or no _ hydrocarbon concentrations•Remediation $119,000 total cost and vapor sampling, <br /> Ground Water) maintenance required controls difficult to implement•Regulatory quarterly monitoring, <br /> acceptance difficult to obtain•Waste microbiological <br /> - Section 9 3 discharge permits sometimes required _ analysts of samples <br /> Natural •Lower costs than most active •Not effective for higher contartunant $5,000 to$15,000 Quarterly ground Unknown x F <br /> ttenuation remedial alternatives •Minimal concentrations •Migration of annually water momtonng <br /> disturbance to the stte •Potential contarnination may occur•Longer time <br /> ection 9 4 use below strictures frame than active remediation•May not ; <br /> achieve cleanup levels within reasonable k <br /> length of time•Not generally permitted l <br /> when free product is present <br /> o- <br /> C <br /> 7 <br /> _ i <br /> Advanced GeoEnvironmental,Inc. <br /> t <br /> F <br /> v _ i <br /> S <br /> S <br /> r <br />