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27 January 2006 <br /> AGE-NC Project No. 02-0913 <br /> Page 3 of 5 <br /> allowing the pump to run for 5 minutes.The domestic well sample was transferred directly into VOA <br /> vials from a sampling tap mounted between the well pump and holding tank. After collection, the <br /> `r samples were properly labeled,placed in a chilled container,and transported under chain-of-custody <br /> to CTEL for analysis. The samples were analyzed for: <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Methods 8015M; <br /> • Benzene,toluene,ethylbenzene and total xylenes(BTEX)in accordance with EPA Method <br /> 8260B; and <br /> • Fuel additives di-isopropyl ether(DIPE),ethyl tertiary-butyl ether(ETBE),methyl tertiary- <br /> butyl ether (MTBE), tertiary-amyl methyl ether (TAME), tertiary butanol (TBA), <br /> 1,2-dichloroethane (1,2-DCA) and ethylene dibromide (EDB) in accordance with EPA <br /> Method 8260B. <br /> 3.4. BORING ABANDONMENT <br /> Soil probe borings were abandoned by backfilling with portland type I/II neat cement from the total <br /> depth of the boring to surface grade. <br /> ... 4.0. FINDINGS <br /> A discussion of field and laboratory results of soil and ground water samples collected during soil <br /> probe borings is detailed below. <br /> 4.1. SHALLOW SUBSURFACE SOIL PROFILE <br /> Tan-brown silty clays were encountered through each soil boring to 20 feet to 25 feet bsg. <br /> Orange-brown silty clays were encountered to approximately 45 feet bsg in each boring. <br /> Olive-brown silty clays extended to 55 feet bsg in boring B 1 and to 60 feet bso in boring B2. From <br /> 60 feet to 70 feet bsg sandy silts with very fine,poorly graded sands less than 10%were encountered. <br /> `r In boring B2,tan-brown,olive-brown,and reddish-brown silty clays extended from 60 feet to 80 feet <br /> bsg. Overall, silty clays were marked by medium to very plasticity and medium toughness in the <br /> upper 40 feet of each boring and low to medium plasticity and toughness in the lower 36 to 40 feet <br /> of each boring. No petroleum hydrocarbon odor and no detections above background levels using <br /> the OVM were noted for soil samples collected from the soil probe borings.Boring logs are included <br /> r„ as Appendix B. <br /> Advanced GeoEnvironmental,Inc. <br /> r <br />