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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 to be <br /> retained by the Regional Board and Local Implementing Agency as documentation of release and <br /> subsequent closure action. All files and reports will be placed on microfiche for review. <br /> I. Case Information <br /> LUSTIS Case'no ` URF filing date Closure date <br /> - <br /> �;>� Site name/county GENSTAR WESTERN STONE PRODUCTS/TRACY/SAN JOAQUIN COUNTY <br /> Site address 8181 WEST 11th STREET City_ TRACY Zip 95367 Phone <br /> - Table I Responsible Party Information _ <br /> c . Responsible parry Name Address, City, Zip Phone <br /> Property owner GENSTAR WESTERN ST NE P.O. BOX 3171 , MODESTO 953 3(209 ) .S23-5615 <br /> Operator 1 <br /> Operator 2 { <br /> Operator 3 ( ) <br /> Release and Site Characterization Information <br /> Tank size(s) 1000 GALLON _ Fuel types) DIESEL <br /> Chemical type(s) and quantity(ies) releasedDIESEL/ UNKNOWN QUANTITY <br /> Table II -Lateral and Vertical Extent of Contamination <br /> Environment Lateral (ft) Vertical (ft) Contaminant Concentration Range <br /> 3 Soil <br /> fiSS2 4 DIESEL FEL 0 - 180 m9118 <br /> Groundwater E - mg/1 <br /> _ra <br /> j Soil type at the site CLAY <br /> Source of drinking water under SWRCB POLICY 88-63 y <br /> Were nearby wells (Domestic, Municipal, Ag, etc.) monitored? Yes No X <br /> Wells affected (Domestic, Municipal, Ag, etc.) <br /> Highest and Iowest depths to groundwater 5.64 - 9.24 <br /> Seasonal groundwater gradient("s)'and direction(s) 0.003 - 0.005 NORTH-NORTHWEST <br /> ::F Name of Regional Water Quality Control Plan (Basin Plan) aquifer affected (see attached) <br /> SAN JQAOUIN COUNTY <br /> Surface water impacted? Yes No X <br /> Name of surface water body af:,--t" NA <br /> Vii=; <br />