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M KLEINFELDER <br /> I ` • <br /> 4.0 CMUCAL ANALYSIS OF SOIL, AND GROUND WkTER SAID pI.FS <br /> 4.1 General <br /> Selected soil and ground water samples will be chemically analyzed by a <br /> State certified analytical laboratory. The chemical analyses will satisfy <br /> the <br /> guidelines established by the cowity Of San Joaquin and the Regional <br /> Water 91ality Control Board. Laboratory certification information will be <br /> prOvided in the findings report. A San Joaquin County analytical results <br /> release form will be oampleted when the boring permits are obtained. <br /> 4.2 Ground Water Analyses <br /> least one ester sample per monitoring well.will be chemically <br /> .Y watQx smp es will he testecl�for <br /> anal zed'. Th — purgeable ar�cxtiatcs <br /> (benzene, toluene, and xylene). by EPA Method 602 and total petroleum <br /> hGC-FID. Ethylene dibrCmide and organic lead will be added <br /> to the analysisp and if detected in soilles. For <br /> same quality assurance; <br /> one blind duplicate and one field blank will be included in the samples <br /> - submitted to the laboratory. The blind duplicate will be prepared from a ' <br /> r <br /> monitoring well along with the sample but, identified so that its origin <br /> is Unknown. The field blank will be prepared from steam distilled water. <br /> I <br /> r- <br /> 4.3 Soil Analyses <br /> _ Selected soii� "-`"""`���•-`•-- - �--.- --- <br /> '�..��„ _,.�� sam�ales£ram the four alxutial sa�.�borings closest to the � <br /> tank excavation area <br /> _ u���lY volatiles aromatics <br /> '(benzene . <br /> ► toluene <br /> _ ,_ ,xylene,- and-arOMtic volatile organics) by EPA_ketY a <br /> 29-88-03 16 <br /> t <br /> a <br /> I <br />