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06 June 2003 <br /> AGE-NC Project No. 98-0468 <br /> Page 3 of 4 <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 /> 2.3. REPORT PREPARATION <br /> Following the CPT site investigation, a report will be prepared presenting the findings. The report <br /> will include a description of work performed, results of the ground water sampling and analysis, <br /> conclusions and recommendations The report will be in a format acceptable to RWQCB guidelines, <br /> and will be reviewed and signed by a California Registered Geologist. <br /> 3.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Registered Geologist. Procedures for CPT sounding and grab ground water sampling are described <br /> below. <br /> 3.1. CPT SOIL BORINGS <br /> Each CPT soil boring will be advanced to a depth of t 00 feet bsg utilizing a 25-ton truck-mounted <br /> CPT drill rig equipped with a hydraulic ram and 2-inch diameter hollow-stern 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 ration 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 DOT-approved 55-gallon drums and stored on-site <br /> in an area lacking public access. Disposal alternatives will be evaluated at a later date based on <br /> laboratory results of rinscate 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. Grab ground water samples will be collected from within 2-inch diameter <br /> hollow-stem rods equipped with a four-foot,extendable 0.01-inch slotted PVC screen. Grab ground <br /> water samples will be collected in selected intervals of saturated porous and permeable material.The <br /> screen will be exposed at the selected depths and a stainless steel bailer will be used to retrieve the <br /> water samples. Ground water samples for appropriate EPA analyses will be collected into 40-m1 <br /> volatile organic analysis (VOA) vials containing 0.5 ml of hydrochloric acid as a sample <br /> preservative. <br /> Advanced GeoEnvironmental,Inc. <br />