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Site Background Information Sutter Office Center
<br /> Page 5 of 7
<br /> ANALYTICAL RESULTS
<br /> IA 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-1 at 55 feet bsg, however, ethylbenzene and
<br /> xylene and were detected at maximum concentrations of 0 025 micrograms per kilogram (mg/kg)
<br />' TPH-g was detected 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 />' HUI - One sample (CPT5-60) was collected from off-site boring CPT-5, target analytes were not
<br /> detected in this sample
<br />' H 2 - One sample(CPT3-60)was collected from westernmost boring CPT-3, target analytes were
<br /> not detected in this sample
<br /> HU4-Samples CPT1-100, 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(gg/I) in CPT1-100 and
<br /> 210 gg/l in CPT2-97 The BTEX compounds toluene, ethylbenzene, and xylenes were detected at
<br /> maximum concentrations of 14 gg/l (CPT2-97), 13 gg/l (CPTI-100), and 80 gg/l (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 CPT1-124, CPT2-124, and CPT4-124 were collected from this unit TPH-g was
<br /> detected in samples CPT1-124 and CPT2-124 at a maximum concentration of 14,000 gg/l
<br /> (CPT2-124),in addition,TPH-d was detected in sample CPT2-124 at 5,200 µg/l BTEX compounds
<br /> were detected at maximum concentrations of 55 µg/l benzene, 840 gg/l toluene, 460 µg11
<br />' ethylbenzene, and 2,000 gg/l 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/l 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 CPTI-150, CPT2-150,and CPT5-150 at a maximum concentration
<br /> of 11,000 gg/l (CPT2-150), in addition, TPH-d was detectedin samples CPTI-150 and CPT2-150
<br /> at a maximum concentration of 5,300 gg/l (CPT1-150) BTEX compounds were detected in
<br /> CPTI-150, CPT2-150, and CPT5-150 at maximum concentrations of 35 gg/l benzene, 590 µg/l
<br /> Advanced GeoEnvironmental,Inc
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