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! y <br /> Project No 58100-06-18 <br /> June 21, 1995 <br /> Page 7 <br /> Obtain one groundwater sample from each groundwater monitoring well The samples will <br /> be obtained using a disposable Voss polyethylene bailer, placed in laboratory-provided sample <br /> containers, labeled, chilled, and delivered to an analytical laboratory following standard cham- <br /> of-custody procedures <br /> Submit the groundwater samples obtained to ATL for testing for TPHg following EPA Test <br /> Method 8015 modified, and BTEX following EPA Test Method 8020 <br /> Provide QA/QC procedures during the field activities These procedures will include <br /> cleansing/rinsing of the sampling equipment prior to each sampling effort and providing <br /> chain-of-custody documentation for each sample collected and transferred to the laboratory <br /> for analytical testing <br /> Laboratory QA/QC will be performed for each method of analysis with specificity for each analyte <br /> listed in the test method's QA/QC Laboratory QA/QC will include the following <br /> One method blank for every ten samples, batch of samples or type of matrix, whichever is <br /> more frequent <br /> 0 <br /> One sample analyzed in duplicate for every ten samples, batch of samples or type of matrix, <br /> whichever is more frequent <br /> One spiked sample for every ten samples, batch of samples or type of matrix, whichever if <br /> more frequent, with spike made at ten times the detection limit or at the analyte level <br /> One travel blank for every batch of groundwater samples <br /> PHASE 2 SCOPE OF WORK <br /> Task I - Installation of Vapor Extraction Monitoring Wells <br /> Excavate boring VM-1 and VM-2 at the proposed locations depicted on Figure 2 to a <br /> maximum depth of approximately 60 feet bgs utilizing a truck mounted, hollow stem auger <br /> drill rig The purpose of installing the vapor extraction monitoring wells where proposed is <br /> to provide a varied range of distances from VW-1 for vacuum measurement purposes <br /> Collect soil samples at five foot intervals from within each boring The soil samples will be <br /> obtained utilizing a modified "California" sampler equipped with 6-inch long stainless steel <br /> sample tubes to facilitate sample handling and storage Following sample collection, the <br /> tubes will be capped, labeled, chilled, and transported to ATL, a California-certified <br /> environmental laboratory utilizing standard chain-of-custody procedures <br /> • <br />