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26 September 2000 <br /> AGE-NC Project No 96-0263 <br /> Page 7 of 10 <br /> performed and results of the sampling and analysis Conclusions, applicable recommendations,maps <br /> and cross-sections will be included in the report The report will be in a format acceptable to the <br /> PHS-EHD and the CVRWQCB, and will be reviewed and signed by a California Registered <br /> 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 the advancement of bonngs, soil sampling, ground water <br /> sampling, monitoring well completion, equipment decontamination and sample shipment are <br /> outlined below <br /> 41 CPT ADVANCEMENT AND SOIL SAMPLING <br /> Each CPT soil boring will be advanced to a depth of 60 feet bsg utilizing a 25-ton truck-mounted <br /> • CPT dell ng equipped with 2-inch diameter hollow-stem rods The first soil boring will utilize a <br /> hydraulic ram to advance a cone penetrometer to the desired depth Soil parameters such as cone <br /> bearing, sleeve faction, friction ration and pore water pressure will be measured as the cone <br /> penetrometer is advanced Rinseate generated during drilling activities will be containerized in <br /> properly labeled DOT-approved 55-gallon drums, and stored on-site in an area lacking public access <br /> Disposal alternatives will be evaluated at a later date based on laboratory results of nnseate <br /> A second soil boring will be located no more than three feet from the first CPT boring for soil <br /> sample collection Based on CPT findings, discrete soil samples will be collected at depths in excess <br /> of 20 feet bsg and in areas of lithologic variation Soil samples will be collected utilizing a 2-inch <br /> diameter piston soil sampling assembly loaded with pre--cleaned brass sleeves Upon soil sample <br /> retrieval, a brass sleeve will be removed from the sampler The ends of the brass sleeve will be <br /> immediately covered with Teflon or aluminum sheets, sealed with plastic end caps, secured with tape <br /> and immediately placed in a chilled container for transportation to a DHS -certified laboratory Each <br /> sample sleeve will be labeled with the location, boring designation, depth, time, date and sampler's <br /> initials <br /> During soil sampling activities, sample duplicates will be monitored for the presence of organic <br /> vapor using a photo-ionization detector(PID Thermo Environmental 580A, 10 0 eV, calibrated to <br /> isobutylene) and recorded on boring logs Soil sample duplicates will be described using the Unified <br /> Soil Classification System (USCS) and recorded on the boring logs <br /> • <br /> Advanced GeoEnvironmental,Inc <br />