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CENTRAL VALLEY REGIONAL WATER QUALITY CONTROL BOARD <br /> CASE CLOSURE CHECKLIST <br /> Leaking Underground Storage Tank Program <br /> This checklist, CASE CLOSURE letter, and the Unauthorized Release Report Form (URF) is <br /> to be retained by the Regional Board and local Implementing Agency as documentation of <br /> release and subsequent closure action. All files and reports will be placed on microfiche for <br /> review. <br /> I. Case.Information <br /> LUSTIS Case-no. URF filing date _ 12/24/86 Closure date <br /> Site name/county ARCO Facility 434/ San Joaquin County _ <br /> Site address 501 W. KettlEi�aii City Lodi Zip 95240 Phone (204)333-0141 <br /> Table I -Responsible Party Information <br /> Responsible party Name Address.City.Zip Phone <br /> Property owner ARM Pb6cicts Co. P.O. Box'612530 &a Jose 'CA ('408 } 453-1458 <br /> Operator i <br /> Operator 2 ( } <br /> Operator 3 ( } <br /> II. Release and Site Characterization information <br /> Tank size(s) Fuel type(s) Unleaded T <br /> Chemical type(s) and quantity(ies) released Approx. 786 gallons of Unleaded gasoline^from <br /> break in product ]_ine. <br /> Table 11-Lateral and Vertical Extent of Contamination <br /> Environment Lateral (ft) Vertical(R) Contaminant Concentration Range <br /> soli 100 55 ew-4 BTEX -- TPHG' <10 - 171000 mglkg <br /> Groundwater 1"z0 20 STEX -- TPHG <0.(y)l - 343.9 mgli As of 11/87 <br /> 30 2 B 1 EX - TPHG <0.0005 - 1 As of 11/92 <br /> Soil type at the site <br /> Source of drinking water under SWRCB POLICY 88-63 Interbedded sand, silt, and clay. <br /> Were nearby wells (Domestic, Municipal, Ag, etc.) monitored? Yes x No <br /> Wells affected (Domestic Municipa Ag, etc.) [none <br /> Highest and lowest depths to groundwater Aril 1987- 48. 95 (W-1 ) Augus 1993 67.4(1-�M) <br /> Seasonal groundwater gradient(s) and directions) Average 0:002 SSW to SSE - <br /> Name of Regional Water Quality Control Plan (Basin Plan) aquifer affected (see attached) <br /> San Joaquin <br /> Surface water impacted? Yes No x <br /> . Name of surfac:e..water body affected <br />