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%nI *%001 <br /> 22 February 2000 <br /> AGE-NC Project No. 98-0432 <br /> Page 5 of 6 <br /> 3.4. REPORT PREPARATION <br /> Upon completion of field work and receipt of the final laboratory analysis,a report will be prepared <br /> presenting the findings of the investigation. The report will include a description of the work <br /> performed and results of the sampling and analysis. Conclusions and applicable recommendations <br /> will be included in the report. The report will be in a format acceptable to the PHS-EHD and the <br /> CVRWQCB, and will be reviewed and signed by a California 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 the advancement of probe borings, soil sampling, ground water <br /> sampling, equipment decontamination and sample shipment are outlined below. <br /> 4.1. PROBE BORING ADVANCEMENT <br /> Probe borings will be advanced using AGE's van-mounted Geoprobe 5400 direct-push probing unit <br /> equipped with 2.15-inch probing rods. The Geoprobe advances soil probe borings using a hydraulic <br /> or pneumatic hammer to drive soil and ground water sampling tools to specified depths. <br /> 4.2. SOIL SAMPLING PROCEDURES <br /> Soil samples will be collected at five-foot intervals using a Geoprobe sampler and four brass sleeves. <br /> Upon sample retrieval,the brass sleeves will be removed from the sampler. The exposed ends of the <br /> second sleeve will be covered with Teflon sheets, capped and sealed with tape. Soil samples <br /> encountered in the borings will be visually classified by an AGE geologist in accordance with the <br /> Unified Soil Classification System (USCS). Additionally, soil samples will be field-screened for the <br /> presence of volatile organic compounds using an OVM. <br /> Each preserved sample sleeve will be labeled with the boring location, depth, time, date and <br /> sampler's initials. Appropriately sealed and labeled samples will be placed in a chilled container <br /> under ice and transported under chain-of-custody to a DHS-certified laboratory. <br /> 4.3. GROUND WATER SAMPLING PROCEDURES <br /> For the collection of"grab" ground water samples, a probe boring will be advanced to the top of the <br /> ground water table as identified by collection of saturated soil samples. Once ground water has been <br />