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21 January 2004 <br /> AGE-NC Project No. 95-0135 <br /> Page 6 of 7 <br /> • Total petroleum hydrocarbons as gasoline(TPH-g)and methanol,in accordance with EPA <br /> Method 8015 Modified; <br /> • Benzene, toluene, ethylbenzene and xylene (BTEX) and MTBE in accordance with EPA <br /> Method 8260; and <br /> • Oxygenated fuel additive compounds di-isopropyl ether (DIPE), ethyl tertiary-butyl ether <br /> (ETBE), MTBE, tertiary-amyl methyl ether (TAME) and tertiary butanol (TBA), ethanol, <br /> ethylene dibromide (EDB) and 1,2-dichloroethane (1,2-DCA) in accordance with 8260 <br /> Modified, respectively. <br /> Laboratory reports for ground water analysis,testing methods,laboratory quality assurance/quality <br /> control (QA/QC)reports, and sample chain of custody documentation will be presented in a report <br /> of findings and recommendations. <br /> 3.3. REPORT PREPARATION <br /> Following the CPT site investigation and each ground water monitoring event, a report will be <br /> prepared presenting the findings. Each report will include a description of work performed,results <br /> of the groundwater sampling and analysis,conclusions and recommendations. The report will be in <br /> a format acceptable to CV-RWQCB guidelines, and will be reviewed and signed by a California <br /> Registered Geologist. <br /> 4.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Registered Geologist. Procedures for ground water sampling are described below. <br /> 4.1. CPT SOIL BORINGS <br /> Each CPT soil boring will be advanced to a depth of 100 feet bsg utilizing a 25-ton truck-mounted <br /> CPT drill rig equipped with a hydraulic ram and 2-inch diameter hollow-stem rods to advance soil <br /> borings. The initial soil boring at each location will be a cone penetrometer,advanced to the desired <br /> depth. Soil parameters such as cone bearing, sleeve friction, friction ratio and pore water pressure <br /> will be measured as the cone penetrometer is advanced. Rinseate generated as part of the drilling <br /> activities will be containerized in properly labeled Department of Transportation(DOT)-approved <br /> 55-gallon drums and stored on-site in an area lacking public access. Disposal alternatives will be <br /> evaluated at a later date based on laboratory results of rinseate samples. <br /> Advanced Gen Environmental,Inc. <br />