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..i <br /> ATTACHMENT B <br /> FIELD AND LABORATORY PROCEDURES <br /> Health and Safety <br /> As required by the Occupational Health and Safety Administration (OSHA) Standard <br /> "Hazardous Waste Operations and Emergency Response" guidelines (29 CFR 1910.120), and by <br /> California Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste <br /> Operations and Emergency Response" guidelines (CCR Title 8, Section 5192), SECOR prepared <br /> a Site-Specific Health and Safety Plan prior to the commencement of fieldwork. The Site- <br /> Specific Health and Safety Plan was reviewed by the field staff and contractors before beginning <br /> field operations at the site each day. <br /> Geoprobe Borings and Groundwater Sampling <br /> The soil borings were advanced using a Geoprobe rig fitted with a hydropunch to collect <br /> groundwater samples at each location. Groundwater samples were collected by lowering a <br /> stainless steel or Teflon bailer into accumulated groundwater in the borehole, then retrieving and <br /> transferring the water into laboratory supplied containers. The groundwater sample containers <br /> were placed on ice for transport to the laboratory accompanied by chain-of-custody docu- <br /> mentation. Down-hole boring and sampling equipment was steam-cleaned prior to and following <br /> the completion of each soil boring. Down-hole sampling equipment was washed in a tri-sodium <br /> phosphate or AlconoxTM solution between samples. <br /> Laboratory Procedures <br /> Groundwater samples collected were analyzed for the presence of TPHg and methanol using <br /> EPA Method 8015, and BTEX and fuel oxygenates (MtBE, EtBE, TBA, TAME, DIPE, 1,2- <br /> DCA, EDB, methanol, and ethanol) using EPA Method 826013. <br />