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t <br /> i I <br /> 1 t 1 <br /> 11 November 2004 <br /> . AGE-NC Project No 02-0962 <br /> h <br /> 1 Page 11 of 14 <br /> 4 <br /> i HU6 Grab ground water sample CPT1-80 was collected from HU6 (Table 2) No constituents of <br /> concern were detected at or above laboratory detection limits in the grab ground water sample ' <br /> analyzed from HU6 <br /> HU7 Grab groundwater sample CPT I-100 was collected from HU7 (Table 2) No constituents of <br /> concern were detected at or above laboratory detection limits in the grab ground water sample <br /> analyzed from HU7 <br /> 'r <br /> Analytical results of ground water samples are summarized in Table 2 A cross section depicting <br />' + dissolved concentrations of petroleum hydrocarbons is provided on Figure 6 The laboratory report ' <br /> (CTEL Project No CT214-0408038), QA/QC reports and chain of custody forms are included in <br /> ` Appendix E Documents confirming the upload of laboratory electronic deliverable format (EDF) <br /> files to GeoTracker are included in Appendix F <br />' 45 GROUND WATER GRADIENT AND FLOW DIRECTION <br /> The elevation of ground water in each of the monitoring wells was calculated by subtracting the <br /> depth to ground water from the surveyed relative casing elevations(Table 3) Depths to ground water <br /> averaged about 21 31 feet bsg Ground water elevations at the site ranged from 9 37 feet(MW-I and <br /> MW-2) to 9 38 feet (MW-3)'below MSL, indicating a nearly flat gradient of approximately <br /> 0 0001 foot/foot (ft/ft) toward the northeast During this monitoring event, the ground water <br /> elevations were within the screened intervals of the wells Figure 7 illustrates the contoured groeind <br /> water elevation as measured on 09 August 2004 <br /> v r <br /> 4 <br /> I4 6 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> None of the constituents listed in,Section 3 6 were detected in ground water samples from any of <br />' the three ground water monitoring wells Analytical results of groundwater samples are summarized <br /> in Table 4 'The laboratory report (CTEL Project No, CT214-0408070), QA/QC reports and chain 4. <br /> of'custody forms are included in Appendix E Documents confirming the upload of laboratory <br />' 'electronic deliverable format (EDF) files and depth to water measurements to GeoTracker are <br /> included in Appendix F ' <br /> 5.0. SITE CONCEPTUAL MODEL <br /> 1 , <br />' Based on the data collected to date from soil boring installation and sampling, AGE has developed <br /> a,site conceptual model for. the release, migration and distribution of the contaminants in the <br /> Advanced GeoEnvironmental,Inc <br /> II l <br /> 1 <br /> F <br />