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Site Background Information <br /> SUTTER OFFICE CENTER <br /> 242 North Sutter Street, Stockton, California <br />' ANALYTICAL RESULTS <br /> A total of seventeen grab ground water samples and two soil samples were collected from on- and <br /> off-site and submitted for laboratory analysis The concentrations of TPH-g, TPH-d, and benzene <br /> were non-detect in the soil sample collected from CPT-I at 55 feet bsg, however, cthylbenzene and <br /> xylene and were detected at maximum concentrations of 0 025 micrograms per kilogram (mg/kg) <br />' TPH-g was detect in the soil sample collected from CPT-1 at 78 feet bsg at a concentration of <br /> 4,800 mg/kg, in addition, toluene, ethylbenzene, and xylene were detected at maximum <br />' concentrations of 350 mg/kg TPH-d and benzene were not detected in the sample from 78 feet bsg <br /> HU1 - One sample (CPT5-60) was collected from off-site boring CPT-5, target analytes were not <br />' detected in this sample <br />' HU2 - One sample(CPT3-60) was collected from westernmost boring CPT-3, target analytes were <br /> not detected in this sample <br /> HU4-Samples CPT 1-100,CPT2-97,CPT3-108,CPT4-105,and CPT5-108 were collected from this <br /> unit TPH-g was detected at concentrations of 1,500 micrograms per liter (µg/1) in CPT1-100 and <br /> 210 µg/1 in CPT2-97 The BTEX compounds toluene, ethylbenzene, and xylenes were detected at <br />' maximum concentrations of 14 µg/1 (CPT2-97), 13 µg/1 (CPT1-100), and 80 gg/1 (CPT1-100), <br /> respectively No other analytes were detected in the samples analyzed <br />' HU5-One sample(CPT3-124)was collected from westernmost boring CPT-3,target analytes were <br /> not detected in this sample <br /> HU6 - Samples CPTI-124, CPT2-124, and CPT4-124 were collected from this unit TPH-g was <br /> detected in samples CPTI-124 and CPT2-124 at a maximum concentration of 14,000 µg/1 <br /> (CPT2-124),in addition,TPH-d was detected in sample CPT2-124 at 5,200µg/1 BTEX compounds <br />' were detected at maximum concentrations of 55 gg/l benzene, 840 µg/1 toluene, 460 µg/1 <br /> ethylbenzene, and 2,000 µg/1 xylenes in sample CPT2-124 In addition, the fuel additive 1,2-DCA <br /> was detected in sample CPT 1-124 at 2 1 gg/1 No other analytes were detected in the samples <br /> analyzed <br /> HU7-One sample(CPT3-150)was collected from westernmost boring CPT-3,target analytes were <br />' not detected in this sample <br /> HUS - Samples CPT1-150, CPT2-150, CPT4-145, and CPT5-150 were collected from this unit <br />' TPH-g was detected in samples CPT1-150,CPT2-150, and CPT5-150 at a maximum concentration <br /> of 11,000 gg/1 (CPT2-150), in addition, TPH-d was detected in samples CPTI-150 and CPT2-150 <br /> Advanced GeoEnvironmentai,Inc <br />