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19 December 2003 <br /> AGE-NC Project No. 95-0135 <br /> Page 6 of 7 <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 /> A second soil boring will be located no more than three feet from the first CPT boring for ground <br /> water sample collection. Based on CPT findings, a groundwater sample will be collected based on <br /> significant lithologic variation. Grab ground water samples will be collected from within 2-inch <br /> diameter hollow-stem rods equipped with a four-foot,extendable 0.01-inch slotted PVC screen.Grab <br /> ground water samples will be collected in selected intervals of saturated porous and permeable <br /> material. The screen will be exposed at the selected depths and a stainless steel bailer will be used <br /> to retrieve the water samples. Ground water samples for appropriate EPA analyses will be collected <br /> into 40-m1 volatile organic analysis(VOA)vials containing 0.5 ml of hydrochloric acid as a sample <br /> preservative. <br /> Advanced GeoEnvironmental,Ine. <br />