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1 <br /> range petroleum hydrocarbon product were reported in the vicinity of the former 20,000 <br /> GA USTs Borings B-3 and B-5 were clean Higher concentrations of the potential <br /> floating diesel product were found by Gallardo in B-1 and B-2 at a similar depth as a <br /> "shallow water body" detected in B-4 which had a small amount of diesel (5,900 pg/L) and <br /> kerosene (4,300 pg/L) detected <br /> ' 1.3.1 Soil Lithology <br /> Findings described in Gallardo's May 24, 1999 report are quoted below, in whole, for <br /> I direct comparison with findings by Stellar Environmental Services/ D K Barber P E <br /> Associates <br /> t "The site soils encountered beneath the site property during drilling consisted of brown <br /> silty sand to a depth between 8 to 9 % feet bgs followed by an underlying layer of gray to <br /> brown sand, with the exception of boring B-3, which did not contain a sand seam at that <br /> elevation Below these layers of soil at a depth of between 12 and 13 feet bgs, a <br /> brownish-grey to brown clayey sand to silty sand was encountered to a depth of <br /> approximately 40 feet bgs However, a grey sand layer approximately 9 feet thick (at B-2) <br /> and a half-foot thick grey silty clay and grey-brown sand layer (at B-2) or a grey sand, <br /> grey-brown silty sand, and light grey sand layer (at B-4) At the time of sampling, <br /> petroleum hydrocarbon odors and soil discoloration were noted in the soil samples <br /> collected from borings B-1, B-2, and B-4 commencing at a depth of approximately 14, 4, <br /> and 12 feet bgs, respectively Analytical results later confirmed petroleum hydrocarbons <br /> within the soil at these three locations No indication of impacted soil was observed or <br /> confirmed by analytical results at borings B-3 and B-5 " <br /> ' Soils encountered during the Stellar/Barber exploration indicated clean to silty yellow <br /> brown sand to depths of 10 to 15 FT bgs with red-brown to brown clayey sand to silty <br /> sand was found to 25 to 28 FT bgs Fine sand and silty sands were found downward to <br /> silty sands with clayey sand at about 40 to 45 FT bgs C-2 indicated a silty clay with a fuel <br /> odor between 33 and 42 FT bgs Sands were found downwards to fit FT bgs in the <br /> vicinity of the MW-1 Soil appears to be permeable without specific pathways to <br /> � groundwater or off site Reference Appendix G, Stellar Environmental Solutions — <br /> Summary of Field Work-December 2000 -January 2001 <br /> 1-4 <br />