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File No. 20-3941-01.E01 kT1 KLEINFELDER <br /> January 22, 1997 <br /> After collection, the soil sample will be labeled, logged on a chain-of-custody, and immediately <br /> stored in an iced cooler. KleinfeIder proposes submitting the five (5) soil samples to a State <br /> certified laboratory for the following analyses: <br /> • Total Petroleum Hydrocarbons Purgeable (Gasoline Range) by EPA Method 8015M/5030 <br /> [TPH-G] <br /> • Benzene, Toluene, Ethylbenzene, Xylenes by EPA Method 8020/5030 [BTEX] T G- <br /> • Total Extractable Petroleum Hydrocarbons (Fuel Fingerprint) by EPA Method 8015M <br /> • Total Lead by AA <br /> The samples will be analyzed on a 5-day analytical turnaround from the time of submittal to the <br /> laboratory. <br /> Task E02(a) - Drilling of One Optional Soil Boring - <br /> If hydrocarbons are detected in the field screening of the soil sample obtaiped in Task E02, one <br /> (1) additional soil boring will be advanced (vertically) to a depth of approximately 50 feet below <br /> surface grade (bsg) immediately adjacent to the tank cluster: <br /> During the advancement of the boring, soil samples will be collected at 5 foot intervals and will <br /> be examined for lithologic classification and qualitative field screening, with an organic vapor <br /> analyzer (OVA). The OVA measures ionizable compounds in air in parts per million by <br /> volume (ppmv). Lithologic classification will be based on the Unified Soil Classification <br /> System (USCS). The samples may also be retained for quantitative chemical analysis. <br /> Currently, based on your correspondence and our experience, we anticipate groundwater in the <br /> vicinity of the project.site to be present at a depth of 65 feet bsg. Therefore, at this time, we <br /> propose to analyze only 3 soil samples from the boring' (the 35 foot, 45 foot and 50 foot <br /> samples). <br /> 20-3941-01.E01/207PE026 Page 3 of 9 ® 1997, Kleinfelder, fizc. <br /> I <br />