Laserfiche WebLink
$Y <br /> Ha <br /> Introduction <br /> Mobil oil Corporation is conducting site evaluations of ser- <br /> vice stations as <br /> part of a property transfer grogram with B.P. oil. <br /> TARGET Environmental Services, Inc. (TARGET) was contracted as part <br /> of this program to perform soil gas surveys to determine the pos-- <br /> sible..presence and extent of subsurface hydrocarbon contamination <br /> at these sites. The field phase of the soil gas survey performed <br /> at Mobil Service Station A10-297, 1403 Country Club Boulevard, <br /> Stockton, .-California, was conducted on March 11, 1989. <br /> Detectability <br /> 5 - <br /> The soil gas survey data presented in this report are the <br /> result of precise sampling and measurement of ^ontaminant concen- <br /> ''4. tritions in the vadose zone. Analyte detection at a particular <br /> location is representative of vapor, dissolved, and/or liquid phase <br /> w contamination at that location. The presence ofdetectable levels <br /> of target analytes in the vadose zone is dependent upon several <br /> factors, indluding the presence of vapor-phase hydrocarbons or <br /> dissolved or liquid concentrations adequate to facilitate volatili- <br /> zation into the unsaturated zone. <br /> 2 <br />