Laserfiche WebLink
J. H. KLEINFELDER & ASSOCIATES <br />File No. S-1716-2 <br />July 2, 1985 <br />Page 3 <br />We will drill three bore holes to groundwater and collect samples at 3 to 5 -foot <br />intervals. A portion of the tank farm wall will have to be removed or we may be <br />required to angle drill under the site. Each sample and drill cutting will be screened <br />with an organic vapor analyzer (OVA). The OVA readings will be utilized to select up <br />to six samples for laboratory analyses. The analyses will include benzene, toluene, and <br />xylene (BTX), total hydocarbon speciation and quantification, and total lead as <br />requested by the county. Each bore hole will be backfilled with concrete upon <br />completion to prevent the bore holes from becoming conduits for migration of <br />contaminants. <br />TRANSFER BLOCK AND LOADING AREA <br />The soils underlying the transfer block and loading area showed visible evidence <br />of ground spillage. Previous analyses of soils in these areas showed vertical migration <br />and contamination of soils with petroleum hydrocarbon products. Three more soil <br />borings will be drilled in each area to supplement existing data. The boreholes will be <br />placed to find the lateral extent of contamination. Soil samples will be collected at 3 <br />to 5 -foot intervals to groundwater or to a depth where the OVA readings indicate <br />contamination has terminated in each borehole. All samples will be screened with the <br />OVA and approximately six samples will be selected on the basis of the OVA readings <br />and submitted for the specified chemical analyses. <br />UNDERGROUND TANKS <br />The facility has four underground tanks; one kerosene tank, one diesel tank and <br />two gasoline tanks. J. H. Kleinfelder 3c Associates previously installed several shallow <br />monitoring wells into the vadose zone. Soil samples collected from these wells and the <br />absence of any odor or vapor indicated that no hydrocarbon contamination had occured <br />