Laserfiche WebLink
18 March 2002 <br /> AGE-NC Project No. 00-0729 <br /> Page 4 of 5 <br /> 3.3. GRAB GROUND WATER SAMPLE COLLECTION AND ANALYSIS <br /> Grab ground water samples will be collected if ground water is encountered during the boring <br /> process using a Geoprobe water sampling assembly. Samples will be collected into 40-m1 volatile <br /> organic analysis (VOA) vials and 1-liter amber bottles as appropriate for the required analyses. <br /> Ground water sample collection procedures are presented in Section 4.3. Ground water samples will <br /> be analyzed by a DHS-certified laboratory for: <br /> • TPH-g by EPA Method 8015 Modified; and <br /> • BTEX and MTBE by EPA Method 8020. <br /> Selected ground water samples may also be analyzed for TPH-d and TPH-mo. <br /> 3.4. REPORT PREPARATION <br /> Upon completion of field work and receipt of 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 laboratory analyses. Conclusions, applicable recommendations,maps <br /> and cross-sections will be included in the report, as well as copies of the laboratory reports,testing <br /> methods,laboratory quality assurance/quality control(QA/QC)reports,and sample chain of custody <br /> documentation. The report will be in a format acceptable to the EHD and the CVRWQCB,and will <br /> 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 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 a van-mounted Geoprobe 5400 direct-push probing unit <br /> equipped with 1.125-inch probing rods.The Geoprobe advances soil probe borings using hydraulic <br /> pressure and a pneumatic hammer to drive soil sampling tools to specified depths. <br /> Advanced Gen Environmental,Inc. <br />