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CEjN-MAL VALLEY REGIONAL WATER QUALITY CONTROL BOARD <br /> CASE CLOSURE CHECKLIST <br /> Leaking Underground Storage Tank Program <br />' This checklist, CASE CLOSURE Ietter, and the Unauthorized Release Report Form (URF) is to be <br /> retained by the Regional Hoard 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 />' LUSTTS Case no. URF filing date Closure date <br /> Site namelcounry Ekholm Prooerty , San Joauin County <br />' Site address 1702 Jackson Street City Escalon Zip 95320 phone,- N/A <br /> Table I - Responsible Party Information <br />' Responsible party Name Address, City, Zip Phone - <br /> Property owner Hubbard Road <br /> ' Mar aret Ekholm Sterling , IL 61081 (815 } 625-4134 <br /> Operator I <br /> ' Operasor 2 { ) <br /> Operator 3 ( ) <br /> H. Release and C�tcteriz n agI a <br /> one ga one- ga 91 oneal (w)Tans size(s) _ Fue types) d_i PSP L_ ga 011 n _ waste n_i 1 <br /> ' Chemical type(s) and quantiry(ies) released . TPHa, TPHd, BTEX/metals/PCB quantities unknown <br /> ' Table II- Lateral and Vertical Extent of Contamination <br /> Environment Lateral (ft) Vertical (ft) Contaminant Concentration Range <br /> Soil 60'x30' 10-45ft b s TPH , TPHd, BTEX ND - 20,000 mg/kg <br /> Groundwater 70'x40' I 1st aquifer TPtig, TPHd, BTEX _ NQ - 0.330 tag/ <br /> ' Soil type at the site well graded sand to 40 ft, poorly graded sand with silt and clay to 85 ft <br /> Source of drinking water under SVrRCB POLICY 88-63 <br /> Were nearby wells (Domestic, Municipal, Ag, etc.) monitored? Yes No X — - <br /> ' Wells affected (Domestic, Municipal, Ag, etc.) None known <br /> Highest and lowest depths to groundwater <br /> Seasonal groundwater gradient(s) and direction(s) gimpra f ly 0.002 ft/f j to lhg wast <br /> ' Name of Regional Water Quality Control Plan (Basin Plan) aquifer affected (see attached) <br /> Basin SR- San uin Counly <br /> Surface water impacted? Yes No _X <br /> ' Name of surface water body affected N/A <br />