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27 February 2015 <br /> AGE-NC Project No. 96-0235 <br /> Page 4 of 10 <br /> boring locations are depicted in Figure 2. A description of proposed soil boring locations y . <br /> and sampling are provided below: <br /> ,G <br /> • One soil boring will be advanced in the landscape strip on the western side of <br /> _ 1215 Harrison Street; the boring will be advanced to approximately 46-50 feet <br /> bsg for the collection of a deep grab groundwater sample to assess the extent of ' <br /> petroleum hydrocarbon impact. <br /> • One soil boring will be advanced in the landscape strip on the western site of <br /> 1217 Harrison Street; the boring will be advanced to approximately 40-50 feet <br /> bsg for the collection of a deep grab groundwater samples to assess the extent <br /> of petroleum hydrocarbon impact. <br /> • One soil boring will be advanced in the landscape strip on the western side of <br /> 1235 Harrison Street; the boring will be advanced to approximately 40-60 feet <br /> bsg for the collection of a deep grab groundwater samples to assess the extent <br /> of petroleum hydrocarbon impact. <br /> One additional soil boring will be advanced approximately 50 feet north of 1215 <br /> Harrison Street, if required, as based on field indications. <br /> Discrete soil samples are not proposed to be collected from the probe borings; the site <br /> geology framework and sampling depth have been established. <br /> Additional soil borings will be proposed within the first scope of work, if field detections <br /> of petroleum hydrocarbons are present in the northern most soil boring. However, field <br /> _ personnel may adjust the frequency and method of sampling in consultation with an <br /> AGE Professional Geologist. <br /> 3.3. LABORATORY ANALYSIS c (ZCQ sS <br /> . VJ <br /> Selected grab groundwater samples will be analyzed by a California Department of <br /> Public Health (CDPH)-certified laboratory for the following constituents: <br /> • Total petroleum hydrocarbons quantified as gasoline and diesel (TPH-g and , <br /> TPH-d, respectively) in accordance with EPA Method 8015M; and <br /> • Volatile organic compounds: benzene, toluene, ethylbenzene, and xylenes <br /> (BTEX) and fuel oxygenates methyl-tertiary butyl ether (MTBE), di-isopropyl <br /> ether (DIPE), ethyl tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TAME), • <br /> and tertiary butanol (TBA) and lead-based fuel scavengers ethylene dibromide ON <br /> (EDB) and 1,2-dichloroethane (1,2-DCA) in accordance with EPA Method 8260B. Ca <br /> _r <br /> _ Laboratory reports for water analyses, testing methods, laboratory quality 1�9a <br /> assurance/quality control (QA/QC) reports, and sample chain-of-custody documentation <br /> Advanced GeoEnvironmental Inc. <br />