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needed to describe the subsurface geology. Soil samples will be field screened with a portable <br /> photoionization detector(PID) for petroleum fuel hydrocarbon vapor and staining. <br /> Upon completion of the borehole drilling and collection of water samples, the boreholes will be <br /> backfilled with grout, placed from the bottom to top of the borehole per the permit requirements. <br /> 3.1 Field Methods - Groundwater Sampling from Open Boreholes <br /> Groundwater samples will be collected from each borehole. A brief summary of the sampling <br /> procedure follows: Each borehole will be advanced into the aquifer and temporarily cased for <br /> sampling. Depth to groundwater measurements will be made in the borehole to the nearest one- <br /> one hundredth of one foot from surface grade, and also checked for the presence of separate <br /> phase product. The water entering the borehole will be sampled using a clean disposable PVC <br /> bailer, and carefully poured into the appropriate laboratory prepared container with minimum <br /> cavitation. Each water sample will be labeled, logged onto a chain-of-custody form, and placed <br /> in a chilled ice chest on crushed ice for transport to the laboratory. <br /> All soil cuttings, decontamination and cement mixing water and consumable items used or <br /> generated in sampling will be left in labeled 55-gallon closed top drums. The drums will be left <br /> at the Client-specified location. <br /> 4.0 Chemical Analysis <br /> Twelve (12) soil samples and six (6) groundwater samples will be analyzed at Kiff Analytical <br /> LLC, a State-certified analytical laboratory in Davis, California. All samples will be tested for <br /> the following; Total Petroleum hydrocarbons as Gasoline (TPHG) and Diesel (TPHD), Benzene <br /> (B), Toluene (T), Ethylbenzene (E), Xylene (X), Volatile Organic Compounds (VOC), Methyl- <br /> tert-butyl-ether (MTBE), and fuel oxygenates tert-Amyl-Methyl-Ether, Ethyl-tert-Butyl-Ether, <br /> Di-Isopropyl Ether and tert-Butyl Alcohol, 1-2, Dichloroethane (1-2DCA), and Ethanol and <br /> Methanol using EPA Methods 3510/8015, 8020 and 8260/8260B. The analyses will be <br /> performed and a"normal"ten-day turnaround. <br /> 5.0 Report <br /> A summary report of the findings of this Limited Phase 11 Site Investigation will be prepared for <br /> submittal to the City and PHS/EHD and RWQCB Region 5. The report will include the field <br /> methods, permits, exploratory boring logs, monitoring well construction details, chemical <br /> analytical data, site map, groundwater flow contour map, geologic cross sections, a site <br /> conceptual model building on the previous work and the data collected from this proposed work <br /> plan and report narrative on subsurface conditions and contaminant extent. The reports will be <br /> prepared in both hard copy, and electronic format for submittal to Geotracker. <br />