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near the bottom of the borings The moisture content increased with depth and reached saturation <br /> between 12 and 16 feet below grade <br /> 2.0 OBJECTIVES AND SCOPE OF WORK <br /> 2.1 Objectives <br /> ' The objective of this phase of the investigation is to determine the lateral and vertical extent of <br /> ground water contamination caused by a release of gasoline from the former UST or its <br /> associated piping This work will be conducted in accordance with Section 2772(a) of the <br /> California Underground Storage Tank Regulations (Title 23, Division 3, Chapter 16 California <br /> Code of Regulations) In order to accomplish the above-stated objective, the following scope of <br /> twork is proposed <br /> I ' 2.2 Scope of Work <br /> Task 1 - Planning and Permits <br /> ' • Conduct a site background investigation <br /> • Prepare and submit this project work plan to the San Joaquin County Public Health Services, <br /> ' Environmental Health Division (PHSIEHD) and the California Regional Water Quality <br /> Control Board (CRWQCB) <br /> • Prepare and submit a site specific Health and Safety Plan (HASP) to the PHSIEHD and the <br /> MCRWQCB <br /> • Obtain appropriate drilling permits <br /> ' Task 2 - Soil Boring Installation and Discrete Ground Water Sampling <br /> ' • Install soil borings to ground water and screen soil samples with PID <br /> • Select one soil sample from each soil boring for laboratory analysis <br /> • Submit soil samples to a California State certified analytical laboratory for analysis of <br /> petroleum hydrocarbons by approved methodologies <br /> ' • Collect a discrete ground water sample from each soil boring for headspace analysis <br /> • Analyze data to determine optimum monitoring well locations <br /> Task 3 - Monitoring Well Installation, Development and Sampling <br /> g <br /> ' • Overdrill selected soil borings for the installation of monitoring wells <br /> • Install, develop, and sample additional monitoring wells <br /> ' . Submit ground water samples to a California State certified analytical laboratory for analysis <br /> of petroleum hydrocarbons by approved methodologies <br /> 11 <br /> American Geological Services,Inc. <br /> CA95DE-029 <br /> 6 <br />