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1 <br /> ' SOP TO-14A/15 <br /> Rev 4 <br /> December 2007 <br /> ' H&P Mobile GeoChemistry <br /> STANDARD OPERATING PROCEDURES (SOPS) <br /> EPA Method TO-14A, TO-15 <br /> Revision 4 <br /> ' December 2007 <br /> 1.0 Scope and Applications <br /> ' This SOP has been prepared for H&P Mobile GeoChemistry (H&P)to help ensure consistent analytical <br /> protocol and applies to the performance of the EPA Method TO-14A and TO-15. This method is applicable <br /> ' to ambient air and soil vapor samples. The scope of topics discussed in this SOP includes the following: <br /> * Method Summary <br /> ' * Health and Safety Warnings <br /> * Cautions <br /> * Interferences <br /> ' * Personnel Qualifications <br /> * Instruments and Materials <br /> * Method Calibration <br /> ' * Sample Collection <br /> * Handling& Preservation <br /> * Sample Preparation <br /> ' * Troubleshooting <br /> * Data Acquisition, Calculation and Data Reduction <br /> * Computer Hardware and Software <br /> ' * Data Management and Records Management <br /> * QA/QC Requirements <br /> * References <br /> ' The following topics are included as part of this SOP by reference as follows: <br /> * References and Definitions (Appendix A of QSM) <br /> ' * Waste Management and Pollution Prevention (Section 5.0 of QSM) <br /> * Data Assessment(Section 8.2 of QSM) <br /> * Corrective Action and Contingencies for out-of-control data(Section 8.0 of QSM) <br /> ' 2.0 Summary of Method <br /> H&P uses EPA Method TO-14A/l5 to identify more than sixty-four(64) volatile organic compounds in <br /> ambient air and subsurface soil gas. Samples are introduced into a gas chromatograph by concentrative <br /> ' trapping as described in the methods, either from a container such as mini Summa canister or Tedlar bag or a <br /> direct collection of air or soil vapor. The analysis is performed on a gas chromatograph (GC) with a <br /> quadrupole mass spectrometer(MS). <br /> Page 1 of 24 <br /> 1 <br />