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GeosMtec'' <br /> consultants <br /> • Meet laboratory performance criteria and quality assurance/quality control <br /> (QA/QC) frequency requirements described in Section 3.3.3 and presented in <br /> Tables 3 and 4; and <br /> • Deliver electronic data files as specified in this Work Plan. <br /> Soil cuttings and soil from the brass or stainless-steel tubes will be field-screened for <br /> VOCs using a portable PID instrument. The soil will be transferred in whirl pack bags or <br /> Ziploc®baggies. Once the bag sealed,the instrument tip will be inserted to measure VOC <br /> vapor concentrations in the bag headspace, extracting the vapor through a slit in the bag. <br /> 3.2.4.2 Sample Identification and Labels <br /> Each sample will be assigned a unique alphanumeric identifier. The identifier will be <br /> formatted as "Project Identifier-Station ID-Depth Interval-Date" using the following <br /> information: <br /> • The project designator will be "PS-UST,"to denote Port of Stockton UST sites; <br /> • The station ID will correspond to sample locations shown in Table 1; <br /> • The depth will indicate the depth in feet bgs; <br /> • Date of collection will be in the form of YYYYMMDD; and <br /> • As an example, a soil sample collected on 4 June 2018 from station GP-517-01 at <br /> a depth of 4 feet bgs will have an ID of PS-UST-SS-517-01-4-20180604. <br /> Each sample will have an adhesive plastic or waterproof paper label affixed to the <br /> container. Samples will be labeled at the time of collection,and the following information <br /> will be recorded on the container label: <br /> • Project name; <br /> • Sample identification; <br /> • Date and time of sample collection; and <br /> • Preservative type (if applicable). <br /> 20190122- FINAL UST Data Gap Work Plan 9 22.01.2019 <br />