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F 1 <br /> 25 January 2005 <br /> • AGE-NC Project No 99-0559 <br /> Page 7 of 12 <br /> on the western edge of Golden Gate Avenue,at Waterloo Road Ground water sample was collected <br /> from the CPT bonngs at the following intervals <br /> • CPT-4 was sampled at 70 feet (HU3), 90 feet(HU4), 125 feet bsg (HU5U), <br /> • CPT-5 was sampled at 70 feet (HU3) 100 feet (HU4) and 150 feet bsg (HU5L), <br /> • CPT-6 was sampled at 70 feet (HU3), 100 feet (HU4), 125 feet (HU5U) and 150 feet bsg <br /> (HU5L), <br /> • CPT-7 was sampled at 70 fee (HU3) t, 100 feet (HU4) and 130 feet bsg (HU5U), and <br /> • CPT-8 was sampled at 70 feet (HU3), 100 feet (HU4), 125 feet (HU5U) and 165 feet bsg <br /> (HU5L/HU6) <br /> ANALYTICAL RESULTS OF GROUND WATER SAMPLES OCTOBER 2002 <br /> A total of nineteen discrete, ground water samples was collected from HU2, HU4, Upper HU5 and <br /> Lower 11U5 and submitted for laboratory analysts <br /> HU2 <br /> Samples CPT4-70,CPT5-70,CPT6-70,CPT7-70 and CPT8-70 were collected from HU2,the upper <br /> most occurrence of ground water from the CPTs TPH-g was detected only in samples CPT4-70 and <br /> CPT8-70 at concentrations of 1,100 micrograms per liter (µg/1) and 150 µg11, respectively The <br /> BTEX compounds toluene and xylenes were detected in sample CPT8-70 at concentrations of 14 <br /> µg/1 and 1 1 µg/l, respectively The fuel additive MTBE was detected in CPT4-70, CPT6-70 and <br /> CPT8-70 at a maximum concentration of 1,500 gg/l (CPT4-70), ETBE were detected in CPT4-70 <br /> and CPT8-70 at a maximum concentration of 3 4 µg/1 (CPT4-70), and 1,2-DCA was detected in <br /> CPT8-70 at 6 2 [ig/l In addition,the cleaning solvent TCE was detected in samples CPT5-70 and <br /> CPT8-70 at concentrations of 1,700 µg/1 and 10 4g11, respectively, CPT-5 and CPT-8 are the <br /> westernmost borings of the investigation <br /> HU4 <br /> Samples CPT4-90, CPT5-100, CPT6-100, CPT7-100 and CPT8-100 were collected from HU4 <br /> TPH-g was detected in samples CPT4-90,CPT6-100 and CPT8-100 at concentrations of 2,000µg/l, <br /> 450 µg/1 and 180 gg/1, respectively The fuel additive MTBE was detected in samples CPT4-90, <br /> CPT6-100 and CPT8-100 at a maximum concentration of 2,600µg11(CPT4-90),ETBE and TAME <br /> ff were detected in CPT4-90 at 25 µg/1 and 5 6 µg/l, respectively, and TBA and DIPE were detected <br /> Advanced GeoEnvironroental,Inc <br />