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i 6 f 1-liter amber bottles will, rerion-lined septum caI J. The samplc bottles contain appropriate pre- servatives,typically hydrochloric acid. The samples are contained in the containers free of I'cadspace(i.e.,no air bubbles in the containers). The containers containing the samples are labeled will,the well number,date,location,sat„pler's initials,and preservative in indelible ink,and the sample labels are covered with clear waterproof tape. The samplc vials are placed in in iced cooler for delivery to a DI-IS-certified laboratory for a� analysis. Standard chain-of-custody procedures are followed. A.G.S Blanks In addition to the graundwater samples, a trip blank and a decontamination blank are analyzed during;each sampling round. A 40-u,1 glass VO;. battle with a'reflon,septan fid, filled with DI water tit the laboratory, functions as a trip blank:. 'I'llis trip blank travels will'the samplc kit from the laboratory to tl,e facility and back to t1,e labortrtory again in the sa[nple containing;cooler. The blank is analyzed for the same par:u„eters as tl,e s:'mples tQ 'ndncate if the samples have been contaminated, fro,,,whatever source,during the trip from the site to the laboratory. A decontamination blank is prepared ill the field during Weil sampling;. After tine first well is. sampled,DI writer is poured into the clean, rinsed sampling bailer that is to be used for sampling the next well. This DI water is then et„ptied, as a sample,into a preserved 40-m1 VOA bottle for analysis with the samples and trip blank. '1,11c decontamination blank indicates if any of the samples are contaminated from the sampling equipment or decontamination process. A.G.G Sample Analysis All groundwater well samples,tl,e trip blank, and the decontamination blank are analyzed r t the laboratory according to Table 2 of tl,e Tri-Regional Recommendations but typically for total petroleum hydrocarbons (TPF1) by DIiS-modified EPA Method 8015 and for the aromatic hydrocarbons benzene,toluene,xylenes,and etl,ylbenr_ene(BTXE)by Di IS Method 8020. A-S - GSfrA9lAny41![� _