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Groundwater collected for analysis of TPHd and TPHmo will be placed into 1-liter bottles with <br /> Teflon-lined caps. Groundwater collected for analysis of VOCs will be placed into 40-milliliter vials <br /> with Teflon-lined septa and preserved using hydrochloric acid. <br /> 3.5.2 Sample Volumes,Preservation Requirements <br /> Sample preservation method and holding time requirements will follow those outlined in the <br /> USEPA's publication SW-846, Test Method for Evaluating Soil Wastes: Physical/Chemical <br /> Methods, Third Edition, Final Update III, December 1996. <br /> As stated in Section 3.5.1, soil samples will be collected directly from the sample liner. An <br /> approximate 6-inch section of the liner will provide adequate volume for the requested analyses. The <br /> section of liner obtained for analyses will be sealed with Teflon sheets and air tight end caps. Each <br /> sample will be labeled and preserved in a cooler with ice packs. Encore samplers will be used to <br /> obtain samples for VOC analysis. The samples must be extracted within 48 hours after sample <br /> collection. <br /> Groundwater collected for analysis of TPHd and TPHmo will be placed into 1-liter bottles with <br /> Teflon-lined caps. Groundwater collected for analysis VOCs will be placed into 40-milliliter vials <br /> with Teflon-lined septa. Samples in vials will be preserved using hydrochloric acid and acidified to a <br /> pH of less than 2.0. Immediately after characterization and preparation, all samples will be sealed in <br /> air-tight plastic bags and placed in a refrigerated chest for preservation. The samples must be <br /> extracted within 7 days after sample collection. <br /> 3.5.3 Sample Identification <br /> All samples will be labeled. The field geologist will identify all samples taken in the field by using a <br /> pre-printed sample label attached to the sample container. The sample label will include the <br /> following information: <br /> ■ sampling company name; <br /> ■ project name and number; <br /> ■ unique sample identification number; <br /> ■ date and time of sample collection; and <br /> ■ initials of the sampler. <br /> 3.5.4 Packaging and Shipping <br /> All samples will be placed in a refrigerated cooler, and accompanied by the chain-of-custody <br /> document. Samples will betransported to the laboratory via courier and analyzed within the <br /> appropriate holding time. <br /> 3.5.5 Field Quality Control <br /> Ambient Blank <br /> At least one ambient blank will be collected near a sample analyzed for VOCs. Three 40 ml VOAs <br /> filled with deionized water will be set out with the vials open to the ambient air during groundwater <br /> sampling activities to evaluate if ambient air is contaminating the primary samples. <br /> 1163-3 2014 0617 PEAWP 3 10 GRI <br />