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• FIELD SCREENING OF SOILS EXPOSED IN THE PRODUCT DISPENSING SYSTEM <br /> EXCAVATIONS <br /> Upon removal of the product dispensing piping the native soils xNere field screened using a photo- <br /> ionizing detector (.PID) NNith a 10 2 ev bulb The PID showed no responses, see Appendi\ B — field <br /> notes This detector is sensitive to volatile organic compounds that have an electron potential of of <br /> less than 10 2 e v Gasoline vapors are readily detected NNrth this detector and it is the pieferied <br /> field-screening instrument for soils at suspected gasoline-contaminated sites <br /> HEALTH AND SAFETY <br /> The only personnel that were allowed to enter the site are those directly rm olved NN ith the <br /> dispensing system removal All others will have to remail outside the fenced area This site is <br /> considered a Class D site All personnel must have completed and prove that they have had the 40 <br /> houi Hazai dous Waste Operations and Einer gency Response Training with cur i ent 8 hour i efresher <br /> certification as described in 29CFR 1910 120 see Appendix B for Health and SafetN Plan <br /> LIMITATIONS <br /> • The infoimation presented in this report is based on the fol lo«rng <br /> I The observations and data collected by field personnel <br /> 2 The result of laboratory analyzes performed by a state certified analytical laboiatoi� <br /> 3 Our unde;standing of the regulations of San Joaquin County, the City of Stockton and the <br /> State of California <br /> 4 References reviewed for this report <br /> Changes in groundwater conditions can occur due to variations in rainfall, temperature, local and <br /> regional water use and local construction practices In addition variations in the soil and <br /> groundwater conditions could exist beyond the points explored in this investigation <br /> State Certified Laboratory analytical results are included in this report This labor itoty follows <br /> EPA and State of California approved pioceduies, however, WEGE is not responsible for eirots in <br /> these laboratory results <br /> The services performed by Westein Geo-Engineers, a corporation under Califoinia Registered <br /> Geologist #3037 and/or Contractors License #51387, have been conducted in a manner consistent <br /> with the level of care and skill oidinartly exercised by members of our piofession currently <br /> practicing under similar conditions in the State of California the City of Stockton and San Joaquin <br /> County <br /> 3 R-603 piping samples 2-2000 <br />