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SAN JOAQUINPUBLIC HEALTH SERVICES/ENVIRONMENTAL HEAL,44VISION 1. UGST WORKSHEET FOR SITE CLOSURE EVALUATION DATE NAME OF FACILITY G> oh Of r S'G4Gd SWEEPS CODE ADDRESS X7)0 S. rS t%b TANK ID ill - TANK SIZE FUEL TYPE II. GENERAL SITE HISTORY >av Is permit current? Yes No Permit # - Facility Status Code DOC.SoiL/GW Cont Yes No Number of Tanks at facility Age of Tanks(if available) Type of Tank Steel Fbrgl Sngl Dual Ili. TANK HISTORY Was Tank tested? Yes No Failed precision test ? Yes No If yes, give date(s) Was a repair made to the tank system? Yes N01 If yes, what was repaired? Was repair done under inspection? Yes No Were soil samples analyzed? Yes No BTXE TPH-G TPN-D Pb/EDB Type of faiLure/discharge catastrophic Long-term Leakage overfill unknown other: IV. REMOVAL HISTORY (ATTACH INSPECTION REPORT FOR SITE DETAILS/COLLECT DATA FOR LEACHING POTENTIAL ANALYSIS) Soil Samples Received Yes No Depth to Ground Water Ref/Year g'fj ; Average Annual Precipitation A= 14 10-25 On-Site Well(s) Yes No Number & Type Irr Dom Pub S Score S Score S Score Distance to Wells) from Tank ft; ft; ft C 10 pts C 9 pts C 5 pts 0 if 0 if 0 if R condition R condition R condition V. Site Feature - Leaching Potential Analysis E is met E is met E is met Minimum Depth to groundwater from the Soil Sample (feet) >100 51-100 25-50\1 Fractures in subsurface (applies to foothills or mountain areas) More 11Unknown Present Average Annual Precipitation (inches) xxxxxx <10 9 10-25 xxxxxxx 26-40\2 Man-Made conduits which increase vertical migration of leachate (i.e., septic systems, water wells, ponds) None Unknown Present Unique site features: Recharge area, coarse soil, nearby wells. At least More than xxxxxx None one one COLUMN TOTALS>>>TOTAL POINTS + !/ + Semple Result: (B T X OR E) RANGE OF TOTAL POINTS 49 pts or more - 48 pts 40 pts or Less B T % E 8 T X E Y' • I TD'� MAXIMUM ALLOWABLE B-T-X-E LEVELS (PPM) 1 50 50 50 .3 .3 1. 1. Na\3 Sample Result: GASOLINE 1000 100 10 f MAXIMUM ALLOWABLE TPN LEVELS (PPM) TPH-W DIESEL 10,000 1000 100 FOOTNOTES: "*If documented soil and/or ground water contamination is present, do not complete the leaching potential analysis. (i.e., site is currently on UGT Contamination List for soil or ground water.) \1 If depth is > 5 ft. and < 25 ft., score 0 points. If depth <=5 ft., do not use table. \2 If precipitation is > 40 inches, score 0 points. \3 Levels for BTX&E are not applicable at a TPN concentration of 10 ppm (gasoline) or 100 ppm (diesel). VI. STAFF RECOMMENDATION/CONCLUSION 1. Are BTX & E or TPH Concentrations > ALLowabLe Levels *Yes Xo 2. Recommend Site Closure Yes No If Yes, Refer to Site Mitigation for Evaluation VII. REVIEW EVALUATION - TO BE COMPLETED BY A SUPERVISOR/SENIOR CONCUR WITH STAFF RECOMMENDATION FOR CLOSURE YES NO REFERRED TO SITE MITIGATION FOR EVALUATION YES NO DATE REFERRED / / DATE CLOSURE LETTER MAILED NAME OF EVALUATOR EH 23 80 (UGTWKSHT)\5/90