Laserfiche WebLink
SOIL SAMPLING <br /> Soil samples for Tank #2 will be taken at 5.0' interys starting at a bore hole depth of 10.0'. <br /> Standard BX tube samples will be taken from a eight ch hollow stem auger. Push point drilling <br /> may also be used for soil sampling. Each soil tube will be capped with a layer of aluminum foil <br /> secured by plastic caps, sealed with duct tape, label for identification, and stored on ice for <br /> transport to the laboratory. All bore holes will be lo gg during the drilling using the standard soil <br /> classification method. Soil samples will be transported der a chain of custody to Sherwood Labs <br /> of Hilmar, Ca. for analysis or analyzed on site. Sampl firm Tank#2 will be analyzed per EPA <br /> Methods 8420 (BTEC, (MTBE), and 503018015(M)I PH-Gasoline. Samples from Tank#1 will <br /> anlyzed per EPA Method 8010& 8020. <br /> i <br /> MONITORING WELL DEVELOPMENT <br /> After soil sampling is completed, the borehole on T #2 will be developed into two inch PVC <br /> caged monitoring well. well depth,length of screened ll casing and sand filter,and the location <br /> of a bentonite plug will be determined in the field by a(PHS-EHD) representative and Foothill <br /> Engineering• Permits for the monitoring wells and reholes will be obtained by the drilling <br /> subcontractor from the (PHS-EH).Monitoring wells will be developed and purged before gauging <br /> and water sampling. <br /> MONITORING WELL TESTING <br /> The monitoring well will be gauged and water samplai obtained and analyzed quarterly. A report <br /> summarizing the quarterly results of gauging and tesfiig of each monitoring well will be prepared <br /> by the site owner's consultant. <br /> SUMMARY <br /> The work plan calls for Foothill Engineering to secure the services of a licenced drilling contractor <br /> to drill slant bore holes sampling on Tank#1. A vertiml bore hole with sampling will be made on <br /> Tank#2. The Tank#2 bore hole will be used to install a 2" PVC monitoring well. A report of the <br /> findings for both tank locations with soil sample analysis will be prepared by Foothill Engineering <br /> for review by all parties. <br /> please address any questions,corrections or additions Ery Rifenburg,Foothill Engineering,Phone <br /> 2091358-9381 <br /> Respectfiffly submitted, <br /> Foo <br /> Ery bur <br /> cc: Norman Higgins <br />