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ro <br /> g undwater flow direction beneath this site has been consistently toward <br /> the northwest <br /> 3 . 0 SCOPE OF WORK (SOW) <br /> Based on the afore-mentioned information, ASE's SOW was as follows <br /> ' I } Prepare a workplan and health and safety plan for review a n d <br /> approval from the appropriate regulatory agencies <br /> 2) Obtain a drilling permit from SJCEHD <br /> 3) Drill eight (8) soil borings at the site to approximately 15-feet below <br /> ground surface (bgs) using a Geoprobe and collect soil a n d <br /> groundwater samples from each boring for analysis <br /> 1 4) Analyze each soil androundwater sample at a C - <br /> g p AL EPA certified <br /> analytical laboratory for TPH-G by modified EPA Method 5030/8015, <br /> BTEX by EPA Method 8020, fuel oxygenates by EPA Method 8260, <br /> and total lead by EPA Method 6010 <br /> 5) Backfill each boring with neat cement <br /> 6) Prepare a report presenting the methods and findings of this <br /> assessment <br /> ' Details of the assessment are presented below <br /> 4 .0 DRILL SOIL BORINGS AND COLLECT SAMPLES <br /> Prior to drilling, ASE obtained a drilling permit from the SJCEHD A copy of <br /> this permit is presented in Appendix A <br /> On March 19, 1998, Vironex, Inc of Hayward, California drilled soil borings <br /> ' BH-A through BH-H at the site using a Geoprobe hydraulic sampling rig <br /> (Figure 2) Borings BH-A, BH-B and BH-C were located to the north, <br /> northwest and west of the fuel dispensers, respectively Borings BH-D, BH- <br /> E and BH-F were located to the west, northwest and north of the UST <br /> complex, respectively Boring BH-G was located near the northeast corner <br /> of the site, and boring BH-H was located near the northwestern corner of <br /> the site The drilling was directed by ASE staff geologist Charlie Rous <br /> • <br /> 574 West Grant Line Road, Tracy, California - April 1998 <br /> 2 <br />