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28 August 2000 <br /> AGE-NC Project No. 97-0249 <br /> Page 6 of 10 <br /> • EPA Method 602 for BTEX and MTBE; <br /> • EPA Method 8260 modified for methanol, ethanol, 1,2-DCA, EDB, tertiary butanol(TBA), <br /> di-isopropyl ether(RIPE), ethyl tert butyl ether(ETBE) and tert amyl methyl ether(TAME), <br /> and MTBE. <br /> Laboratory reports for ground water analyses,testing methods, laboratory quality assurance/quality <br /> control (QA/QC)reports, and sample chain of custody documentation will be presented in a report <br /> with the findings and recommendations. <br /> 3.6. REPORT PREPARATION <br /> Following each quarterly ground water monitoring event, a quarterly report will be prepared <br /> presenting the findings. The quarterly reports will include a description of work performed and the <br /> results of the soil and groundwater sampling and analysis. Conclusions and recommendations will <br /> also be included in the reports, if applicable. The report will be in a format acceptable to the PHS- <br /> EHD and the 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 monitoring well installation, well development, ground <br /> water sampling,soil sampling,equipment decontamination and sample shipment are outlined below. <br /> 4.1. CPT DRILLING AND GRAB GROUND WATER SAMPLE COLLECTION <br /> CPT soil borings will be advanced to depths of 70 feet bsg utilizing a 25-ton truck-mounted CPT <br /> drill rig equipped with 2-inch diameter hollow-stem rods.The first soil boring will utilize a hydraulic <br /> ram to advance a cone penetrometer to the desired depth. Soil parameters such as cone bearing, <br /> sleeve friction, friction ration and pore water pressure will be measured as the cone penetrometer is <br /> advanced. Rinseate generated during drilling activities will be containerized in properly labeled <br /> D.O.T. 55-gallon drums, and stored on-site in an area lacking public access. Disposal alternatives <br /> will be evaluated at a later date based on laboratory results of rinseate. <br /> A second soil boring will be located adjacent the first CPT boring for ground water sample <br /> collection. Based on CPT findings, discrete grab ground water samples will be collected in intervals <br /> of porous and permeable material beginning at a depth of 20 feet bsg. A HydroPunch sample tool <br /> Advanced GeoEnvironmental,Inc. <br />