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Work Plan, BP Facility No 11191 <br /> November 10, 1994 <br /> out to assess the lateral extent To complete the investigation outlined above, <br /> GSI proposes the following scope of work <br /> TASK 1 Pre-field Activities Obtain the required soil boring permits from the <br /> SJCEHD, and notify Underground Service Alert (USA) of the planned <br /> activities <br /> TASK 2. Drilling of Exploratory Soil Borings A California-licensed well driller <br /> approved by the SJCEHD will drill three borings at the locations <br /> shown on figure 2 The borings will be drilled with <br /> eight-inch-diameter hollow-stem augers to a maximum anticipated <br /> depth of 50 feet bgs A GSI geologist will supervise the drilling <br /> activities and prepare a log of each boring Soil samples for <br /> description and possible chemical analysis will be collected at five- <br /> foot intervals Soil samples selected for analysis will be analyzed as <br /> described in Task 3 Based on available site data, we anticipate two <br /> soil samples from each boring will be submitted for chemical <br /> analysis <br /> If OVM field screening of the soil samples detects evidence of the <br /> possible presence of residual petroleum hydrocarbons at the total <br /> depth of the boring, the boring will be extended until the evidence <br /> of residual hydrocarbons is not observed, or first encountered <br /> groundwater If possible evidence of residual petroleum <br /> hydrocarbons are detected in any boring, an additional boring will be <br /> drilled further out from this boring in an attempt to delineate <br /> hydrocarbons at this location These borings will be drilled as <br /> described above in Task 2 OVM field screening procedures are <br /> described in GSI's Field Methods and Procedures <br /> Boring Completion Upon completion of drilling, the soil borings will <br /> be backfilled to ground surface with cement grout The cement <br /> grout will be placed with a tremle pipe as required by SJCEHD <br /> guidelines <br /> Report No 4300 701-1 3 <br /> GeoStrategies Inc. <br />