Laserfiche WebLink
. y } <br /> The survey will be performed by Tracer 'Research, :Inc. on a <br /> subcontract basis. " A member of USPCI's Environmental Assessment <br /> staff familiar with the technique will be on=site constantly to <br /> direct the survey. Tracer Research is a specialist in "soil vapor <br /> surveys and provides a crew and "all equipment and supplies -for the <br /> project. . The soil vapor sample is analyzed immediately upon <br /> retrieval by gas' chromatography .in an on-site "mobile laboratory. <br /> This allows modifications to be" made to the survey strategy based <br /> upon previous sample results. { <br /> 3.0 SOIL VAPOR SURVEY <br /> If .the method successfully identifies and establishes the <br /> limits of a known spill, a work.',�.plan will be established to` assess <br /> F the entire line. The sample separation. - distance will be <br /> established through consultation with regulatory agencies. The <br /> grid will be .established to identify with reasonable certainty the <br /> smallest region of contamination of concern to 'regulatory <br /> authorities. <br /> 4.0 SOIL SAMPLING AND ANALYSIS <br /> When areas' of . suspected : leakage have been identified, a <br /> verification sampling program (will be designed and implemented. <br /> Soil samples will be. obtained at depth with either a hand auger or <br /> hollow-stem auger drill rig depending upon site conditions. The <br /> a:pipeprop.dac 3 3 <br />