Laserfiche WebLink
i24 August 2005 <br /> • AGE-NC Project No 02-0950 <br /> ' Page 3 of 4 <br />' 32 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> TPH-g and TPH-d were detected in the water sample collected from well MW-2 at concentrations <br />' of 10,000 micrograms per liter(µg/1) and 17,000 µg/l, respectively <br /> BTEX components were detected in the water sample collected from well MW-2 at concentrations <br />' of 170 µg/1 benzene, 95 µg/l toluene, 1,100 µg/1 ethylbenzene, and 3,020 µg/1 xylenes <br /> No other analytes were detected at or above laboratory reporting limits in the ground water samples <br />' analyzed The analytical results of the ground water samples are summarized in Table 2 The <br /> laboratory report (CTEL Project No CT214-0506237), quality assurance/quality control (QA/QC) <br /> report, and chain of custody form are included in Appendix C Documents confirming the upload <br /> of laboratory electronic deliverable format (EDF) files and depth to water measurements to <br /> GeoTracker are included in Appendix D <br /> 4.0. <br /> SUMMARY AND CONCLUSIONS <br />�. Based on the data collected from the site, AGE concludes <br />' At the time of the June 2005 sampling event, depths to ground water ranged from 17 11 feet <br /> to 17 45 feet below the tops of the well casings Ground water elevation at the site averaged <br /> approximately 9 43 feet below MSL Ground water was inferred to be flowing toward the <br />' northeast under a hydraulic gradient of approximately 0 002 ft/ft <br /> • TPH-g and TPH-d were detected in the water sample collected from well MW-2,both TPH-g <br />' TPH-d concentrations decreased significantly as compared with the previous quarter <br /> • BTEX compounds were detected in the water samples collected from well MW-2 The <br /> concentrations of benzene, ethylbenzene, toluene and total xylenes were lower than the <br /> previous quarter The concentrations of BTEX, except for toluene, detected in MW-2 were <br /> all above each constituent's respective DHS maximum contaminant level (MCL) <br /> 5.0. RECOMMENDATIONS <br /> Based on the findings of the environmental activities recounted in this report, AGE recommends <br /> • Continuation of the quarterly monitoring program,the next monitoring event was performed <br /> • in September 2005 <br /> Advanced GeoEnvironmental,Inc <br /> I <br />