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� ar r■�r r � i � r i �r r r � r r r � r r <br /> EOMATRIX <br /> I <br /> TABLE 5 <br /> CORRECTIVE ACTION ALTERNATIVES TO RESTORE GROUNDWATER TO WQOs <br /> 1805 Harbor Street <br /> Stockton, California <br /> I <br /> Remedial Site-Specific Implementabihty Time to <br /> Alternative Technical Method Effectiveness at the Site Achieve WQOs Cost <br /> Limited Exca- Physically remove accessible affected soil located on-site Poor Implementable 6 Months to ample- $1,837,400 <br /> vation of on-site (approximately 5,500 cubic yards)and dispose of soil An estimated 75%of the ment <br /> soil for landfill affected by petroleum hydrocarbons at a Class II landfill mass would immediately be Relatively long to <br /> disposal removed, however,WQOs achieve WQOs <br /> would not be achieved for <br /> decades to centuries due to <br /> presence of petroleum- <br /> affected soil that would <br /> remain under adjacent rail- <br /> road property <br /> Complete Remove and treat all soil affected by petroleum hydro- Good Difficult to imple- l Year $5,156,300 <br /> Excavation for carbons using LTTD The estimated mass of affected Removes residuals of (pending pp ment due to surface endin approval of <br /> Low-Tempera- soil is 12,400 tons(I 10 feet by 140 feet by 20 feet thick) constraints <br /> ture Thermal Treated soil would be placed back in the excavation petroleum hydrocarbons (i e,railroad) access agreements, <br /> Desorption Removal and replacement of adjacent railroad and remaining in the saturated permits from multiple <br /> (LTTD) fences,as well as extensive dewatering would be neces- <br /> sary for the excavation ContiGroup would need to <br /> acquire access agreement with the property adjacent to <br /> the site <br /> Complete Remove and dispose of all soil affected by petroleum Good Difficult to imple- I Year $3,123,700 <br /> Excavation for hydrocarbons at a Class 1I landfill The estimated mass Removes residuals of (pending pp ment due to surface endin approval of <br /> Landfill of affected soil is 13,400 tons(110 feet by 140 feet by 20 constraints <br /> petroleum hydrocarbons access agreements, <br /> Disposal feet thick) Removal and replacement of adjacent rail- remaining in the saturated (i e ,railroad) permits from multiple <br /> road and fences,as well as extensive dewatering would and unsaturated zone agencies) <br /> be necessary for the excavation ContiGroup would need <br /> to acquire access agreement with the property adjacent to <br /> the site <br /> I\boc_safe\9Ms%"631CAPM1 5 Alis Thi Doc Page 3 of 3 <br />