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!Fpz .p-. .}Ti 40_ 's- fy <br /> s*da'n F "� <br /> FF� <br /> I <br /> - '• � PItOB��MlaSSF.S:.MEN7'ItFPOR1' <br /> I r Shell 5ervicc Station- - _ <br /> 7910 Loynr Sacramento Road,Stockton,Callrornia <br /> i Shell MC No.20$-7524-0808 <br /> Delta Project No.40$$-147 <br /> Pages 12 <br /> 6.0 RDIEDIAL ACTION ALTgRNATLI_VES <br /> " The soil analytical results indicate that concentrations of petroleum hydrocarbons remain in the former <br /> storage tank excavation backfill and the native roil directly beneath the tank excavation. Figures 5 and 8 <br /> r« illustrate the appro:dmate vertirai and horizontal extent of soils containing petroleum hydrocarbons. <br /> As per the guidance document entitled"Regional Board Staff Recommendations for Initial Evaluation and <br /> }�} 3 Investigation of Underground Tank--Tri-Regional Recommendations,'remedial alternatives were evaluated <br /> t for the subject site. These remedial alternatives are as follows: <br /> i� <br /> For sons: <br /> l • 5otZ excavation and either landfilling,on-site sod aeration,or off-site soil treatment of ratcavated <br /> �r m soil <br /> O Soil venting. <br /> ® Physical containment <br /> Chemical neutralization <br /> a e No action. E <br /> r trot nd water:. <br /> ® . CAection,treatment,and disposal <br /> a 7. No action <br /> s 6Egli m a <br /> Thefollowing subsections evaluate each of the soil remediation alternatives listed above. <br /> } <br /> � ul <br /> < V _ <br /> ,1{ p <br /> F <br /> h <br /> i <br /> } <br />