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AGS <br /> • PCBs by EPA Method 8082; and <br /> • Semi-volatile organic compounds (SVOCs) by EPA Method 8270. <br /> Based on a RWQCB Central Valley Region document pertaining to analysis of <br /> oxygenated compounds used in California gasoline (RWQCB, 1997), methanol and <br /> ethanol are not required as part of the EPA 8260 analysis. All samples to be analyzed <br /> for TPH-D/MO will be subjected to a silica gel cleanup process (EPA Method 3630) prior <br /> to analysis to remove water soluble, vegetable-based oils, leaving only petroleum-based <br /> oils to be analyzed. <br /> Quality Assurance/Quality Control (QA/QC) procedures will be followed throughout the <br /> investigation. A Quality Assurance Project Plan (QAPP) has been prepared for the <br /> investigation and is included as Appendix D of this Work Plan. <br /> 16 <br /> ''dLAURA1C1WvmnWWP,CC555-CLTS119951950304o1Wonc?'an=on Plar. <br /> C&I089 <br />