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• 12 March 1999 <br /> AGE-NC Protect No 97-0333 <br /> Page 5 of 6 <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 soil and ground water sampling, equipment decontamination <br /> and sample shipment are outlined below <br /> 41 SOIL SAMPLING PROCEDURES <br /> Soil borings will be advanced using direct push technology (Geoprobe 5400 soil probing unit) At <br /> least one soil boring will be continuously sampled using a macro core sampler Relatively <br /> undisturbed soil samples will be collected in all other borings using a Geoprobe soil sampling <br /> assembly loaded with pre-cleaned 1 125-inch by 6-inch brass sleeves Upon soil sample retrieval, <br /> the sample sleeve will be separated with a clean soil knife The exposed ends of the second sleeve <br /> will be covered ,%Nith Teflon sheets, capped and scaled with tape Soils encountered in the borings <br /> will be visually classified by AGE field personnel in accordance with the Unified Soil Classification <br /> System(USCS) Additionally, soil samples will be field screened for the presence of volatile organic <br /> compounds using an organic vapor meter (OVM) <br /> Each soil sample will be labeled with boring location, depth, time, date and sampler's initials <br /> following sample collection Soil samples will be placed in a chilled container under ice and <br /> transported under chain-of-custody procedure to a DHS-certified laboratory <br /> 4 2 GROUND WATER SAMPLE COLLECTION <br /> I <br /> If ground water is encountered during sampling activities, then grab ground water samples will be <br /> collected from each soil boring utilizing a Geoprobe water sampling assembly For the sampling <br /> assembly,probe rods will be fitted with a retractable ground water screen and advanced to the total <br /> depth of each probe boring, the rods will then be pulled upward to allow ground water to flow into <br /> the screen A bailer fitting will then be placed on the end of%-inch diameter polyethylene tubing, <br /> inserted through the rod assembly into the exposed screen, through which water will be manually <br /> pumped <br /> . Following sample collection, each preserved ground water container will be labeled with the boring <br /> location, depth, time, date and sampler's initials Appropriately sealed and labeled samples will be <br /> Ads anted GeoEnr iron mcntaI Inc <br />