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1 <br /> i <br /> 25 January 2005 <br /> iAGE-NC Project No 99-0559 <br /> Page 6 of 12 <br /> iof 6,700 gg/l and 710 gg/l,respectively The BTEX compounds were detected in samples CPT I-100 <br /> at concentrations of 1,100µg/1, 89 gg/l,410 gg/l and 900 gg/l,respectively The BTEX compounds <br /> i were detected in samples CPT2-100 at concentrations of 100 pg/l, 120 gg/1, 10 gg/l and 47 4g/l, <br /> respectively The fuel additive MTBE was detected in CPTI-100, CPT2-100 and CPT3-100 at a <br /> maximum concentration of 870 gg/l (CPT3-100), <br /> I <br /> HU5 upper <br /> iSamples CPT I-130,CPT2-130 and CPT3-130 were collected from the upper portion of HU5 TPH-g <br /> was detected in sample CPTI-130 at a concentration of 4,700 gg/l The BTEX compounds were <br />' detected in samples CPTI-130 at concentrations of 94 gg/l, 570 gg/l, 110 gg/l and 540 gg/I, <br /> respectively The BTEX compound toluene and xylenes were detected in samples CPT3-130 at <br /> concentrations of 0 59 gg/I and 2 4 gg/1, respectively The fuel additive MTBE was detected in <br />' samples CPTI-130 and CPT3-130 at a maximum concentration of 1,100 gg/l (CPTI-130) <br />'• HU5 lower <br /> Samples CPT I-150, CPT2-150 and CPT3-150 were collected from the lower portion of HU5 TPH-g <br /> was detected in sample CPT I-150 at a concentration of 10,000 gg/l The BTEX compounds were <br /> detected in samples CPTI-130 at concentrations of 47 pg/l, 410 gg/l, 150 gg/l and 810 gg/l, <br /> respectively The fuel additive MTBE was detected in samples CPTI-150 and CPT3-150 at a <br /> maximum concentration of 1,200 pg/1 (CPT2-150) <br />' OFF-SITE CPT LITHOLOGIC INVESTIGATION SEPTEMBER AND OCTOBER 2002 <br /> Five paired borings (CPT-4 to CPT-8) were advanced off-site utilizing CPT technology to model <br /> the geological and hydrogeological framework and to assess the lateral and locally the vertical extent <br /> of dissolved petroleum-hydrocarbons off the site Lithologic data was collected from an initial CPT <br /> soil boring at each boring location, a twin boring was then advanced immediately adjacent to the <br /> initial CPT soil boring to collect grab ground water samples from selected depths Soil borings were <br />' advanced vertically to the following total depths at the specified locations A site plan depicting <br /> boring locations is presented in Figure 2 CPT-4 was advanced to 118 feet below surface grade(bsg) <br /> at the northern edge of the Waterloo Road sidewalk, west of the site, CPT-5 was advanced to <br />' 125 feet bsg on the eastern edge of Golden Gate Avenue,approximately 150 feet south of Waterloo <br /> Road,CPT-6 was advanced to 165 feet bsg on the western edge of Chronicle Avenue,approximately <br /> 250 feet south of Waterloo Road, CPT-7 was advanced to 145 feet bsg on the western edge of Sutro <br />' Avenue,approximately 100 feet north of Waterloo Road, and CPT-8 was advanced to 168 feet bsg <br /> on the western edge of Golden Gate Avenue,at Waterloo Road Ground water sample was collected <br /> Advanced GeoEnvironmental,Inc <br /> 1 <br />