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0 0 <br /> Results of Limited Subsurface Investigation <br /> Former P.E.O'Hair Site, 1102 South Aurora Street,Stockton,San Joaquin County,California <br /> Page 3 <br /> The soil and groundwater samples were analyzed for the constituents listed in the table below: <br /> Analysis Abbreviation Designation USEPA Method No. <br /> Total Petroleum Hydrocarbons TPHg Aromatic 8015 Modified <br /> as Gasoline H drocarbons <br /> Benzene Aromatic <br /> Toluene BTEX Volatile 8020 <br /> Eth (benzene Organics <br /> Xylenes Total <br /> Tertiary Butyl Alcohol TBA <br /> Methyl Tertiary Butyl Ether MTBE Five Fuel <br /> Di-isopropyl Ether DIPE Oxygenates <br /> Ethyl Tertiary Butyl Ether ETBE 8260B <br /> Tertiary Amyl Methyl Ether TAME <br /> 1,2-Dichloroethane 1,2-DCA Lead <br /> Ethylene Dibromide EDB Scavengers <br /> Soil and groundwater analytical results are included in Tables 1 and 2,respectively. All <br /> fieldwork was conducted in accordance with the Apex Standard Operating Procedures (SOP) <br /> included in Appendix B. Complete soil and groundwater analytical laboratory reports and chain- <br /> of-custody forms are included as Appendix C. <br /> GEOPROBEO INSTALLATION PROCEDURES <br /> Soil core sampling was conducted using 5-foot sections of decontaminated 1/4 inch inside <br /> diameter(ID) galvanized steel probe pipe. The probe pipe was connected to a 1-foot long;3/< <br /> inch ID galvanized steel soil core tube. Stainless steel decontamination insert rods were placed. <br /> through the probe pipe and sampling core. The probe pipe, soil core, and insert rods were <br /> together pneumatically driven to the depth the soil core was desired. The insert rods were <br /> removed and the probe pipe and core tube were driven one foot to obtain the soil core sample. <br /> The probe pipe containing the soil core sample was removed from the hole and the soil sample <br /> was disconnected from the probe pipe. The ends of the core were sealed using Teflon tape and <br /> plastic end caps. <br /> After soil sampling was completed, tygon tubing with a Waterra brand check valve was inserted <br /> through the probe pipes to collect a groundwater sample. A groundwater sample was collected <br /> from each of the borings. The fresh formation water entering the borings was sampled directly <br /> from the open boring. Upon completion of groundwater sampling activities,the boreholes were <br /> grouted to the surface with bentonite and cement. A representative of the County was on-site for <br /> the grout inspection. Soil boring logs are included as Appendix D. <br />