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SWte of California UNDERGROUND STORAGE TANK San Joaquin County <br /> r <br /> Ermronmental Protection Agency CLOSURE REVIEW FORM Ermronmental Health Dnnsion <br /> Date 10/1/98 WSTIS file no Case reviewer Harland Kroll <br /> Site Name/Address Responsive parties Address clo 3333 Beverly Rd, Phone no <br /> Sears No 1288 Sears Roebuck&Co Hoffman Estates,ll 60179 847-286-5530 <br /> 1 Pacific Avenue <br /> tockton,CA 11 <br /> CASE INFORMATION NIA= Not A licable <br /> Tank No Size in Gallons Contents Closed in- ace/Rerroved? Date <br /> Tank 1 Unknown Unknown Removed 2185 <br /> II SITE CHARACTERIZATION INFORMATION GW= roundwater <br /> GW basin San Joaquin Va Beneficial uses NIA Depth to dnnId water aquifer 35-40 feet(estimated) <br /> Distance to nearest munWpal supplyywell 2,000 feet estimate Distance between known shallow GW contamination and aquifer NIA <br /> Site GW highest depth WASite GW lowest depth N/A Shallow water-bearing zone well screen Flow direction WA <br /> krterva1 N/A <br /> ( Soil Type mainly silts sands grovels &clays rmeabil Maximum depth sampled 5-feet <br /> III MAXIMUM DOCUMENTED CONTAMINANT CONCENTRATIONS-Initial and Latest—=Not Reported ND=Non-detect <br /> Contaminant Soil Water Contaminant Soil Water <br /> Initial Latest — — Initial Latest Initial Latest <br /> (t 994) (19434) (Year) (year) <br /> TPH9 �' 4,800 NIA — -- Total Load 18 WA — --- <br /> VOC/8010 N/D N/A -- — Oil&grease 460 WA — --- <br /> Benzene 0 058 WA — --- CAM metals 220 WA <br /> (Barium) <br /> Toluene 034 N/A <br /> Ethyibenzene 012 N/A --- _ <br /> Xylene 047 N/A ... _ <br /> SOIL REMEDIATION <br /> Method UST removal 1985 intrinsic blot radation 1985-1998 Duration of remediatson N/A <br /> V GROUNDWATER REMEDIATION <br /> 11 Method WA Duration of remediation N/A <br /> VI FREE PRODUCT, <br /> Was free product encountered? No Has free product been totally recovered? NIA <br /> When was free product recovey project completed? N/A <br /> VII RECOMMENDED ACTION* <br /> Soil closure ony Not applicable Case Closure Yes Solvent Case? No <br /> Adartionas Action Required I e aoaitioml site assessment,rernedaatlon,monitors Norte <br /> VIII JUSTIFICATION FOR RECOMMENDED ACTION- <br /> 1)Souroe removed by UST removal 1885 product rine and impacted soil removal 1994 2 No phase-separated liquid hydrocarbons <br /> 3 No waste oll store-e at site since 1985 4 Impacted soil at she not In communication w/drinkl water <br /> 5)Ongoing biodegradatkxUattenuation in soil,likely to continue 6)Low-permeability soll types and asphalt surface Amit surface water Infiltration and <br /> flushin of h rocarbons In soil and groundwater <br /> ��BaBticn.Ae <br />