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November 9, 2005 <br /> NOA Project Number: E05132C <br /> 3.3 Quality Assurance/Quality Control(QA/QC) Procedures <br /> Quality Assurance/Quality Control (QA/QC) procedures will be used to minimize the potential for <br /> contamination of soil samples. The QA/QC procedures may include the use of single-use sampling <br /> equipment, decontamination of drilling and sampling equipment by washing with a solution of <br /> potable water and Liquid-Nox solution or equivalent between borings,use of one duplicate sample <br /> per day, changing latex protective gloves after each sample, and recording sample information on <br /> chain-of-custody forms. <br /> 3.4 Soil Sample Laboratory Tests <br /> Soil samples will be transported to a California state certified analytical laboratory where the <br /> following Environmental Protection Agency (EPA) tests may be performed, depending on sample <br /> location and suspected contaminant: <br /> Surface agricultural chemical and fuel investigation: <br /> • Organochlorine pesticides by EPA Method 8081; <br /> • CAM 17 metals by EPA Method 6000/7000; <br /> • TEPH by EPA Method 8015 Mod. <br /> Former underground storage tank investigation: <br /> • TPH-g and TEPH by EPA Method 8015 Mod. and B=by 8015/802113; <br /> • CAM 17 Metals by EPA 6000/7000. <br /> 4.0 PROPOSED TIME SCHEDULE FOR WORK <br /> Assuming approval of this workplan,we propose to perform the work between November 11,2005 <br /> and November 18, 2005. Standard laboratory tum-around is ten business days. We anticipate <br /> producing the Phase II Investigation report documenting the results of the work shortly thereafter. <br /> 5.0 REPORT PREPARATION <br /> A report will be prepared to present the soil types encountered and analytical test results for the soil <br /> samples. The report will also include laboratory test result sheets and chain-of-custody <br /> documentation. <br /> 4 "004 <br />