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KLEINFELDER <br /> samples in the field, A Photovac TIPhotoio ' <br /> a 10,6 P nxzation detector (PID} with <br /> ev photoionization lamp was used to <br /> compounds in arts measure total ionizable <br /> p per million by vollune (p my <br /> a minimum F ) This tool was calibrated <br /> of once each day using a 100 part per million isobutylene <br /> � f <br /> standard. <br /> To assess the soil in the excavation, samples were collected at various <br /> depths from the walls <br /> of the excavation by removing fresh soil with the <br /> backhoe b+icket and immediately sealingit in a <br /> then shaken for a Mason jar. The soil was <br /> app <br /> 15 to 30 seconds and the lid of the jar was <br /> Punctured with two holes. The tip of the PID was then inserted into the <br /> hole to measure the organic vapors in the headspace of the Mason <br /> results were used to jar. The <br /> { assist the direction and <br /> excavation extent of further <br /> , and in selectingthe confirmation samples ' <br /> for <br /> by <br /> quantification # <br /> - a certified` anal tical quantification y Y• The locations of the excavation <br /> $ survey points are shown on Plate 3 and <br /> i , the PID screening results are <br /> Presented on Table i. ` <br /> st i <br /> _ r <br /> Qualitative field =screeing was additionally ,conducted on the excavated <br /> it stockpiled soil. The soil piles were assessed ay. digging 13 ran <br /> from the two piles a dam areas <br /> PProximately 2 feet below the surface and inserting h <br /> the PID probe into the.hoie <br /> to.measure 'the ,total ionizable compounds. The 2 <br /> locations of the soil <br /> Pile survey Points are sho <br /> Y int on Plate 3, and PID <br /> ,screening results are presented in -Table 2. ' <br /> 1.3 CONFIRMATION. SOIL SAMPLING AND ANALYTICAL RESULTS r <br /> ~ 7B ispon completin the <br /> g soil excavation, confirmation <br /> collected from the -walls <br /> soil samples were <br /> - _ <br /> of the excavation. These samples were used to <br /> ruantify the presence <br /> Of petroleum hydrocarbons remaining <br /> t . ,excavation. g in the The samples were selected based on the r <br /> survey. Inesults of the PID <br /> � r <br /> . <br /> areas where <br /> s <br /> ; . Positive PID readings were recorded from rhe <br /> walls of .the r <br /> excavation, <br /> the sample with the highest PID,xeadir�g was <br /> r' <br /> submitted for anal sas, <br /> Based on the results of the PI17 screening, <br /> s soil samples from the excavation were submitted. for chemical analysis, five <br /> s <br /> q >, <br /> s 102-88-638 <br /> 4 <br />