ARCHIVED REPORTS_XR0002841 - Laserfiche WebLink

Home Browse Search

1 ' 19 July 2005 . AGE-NC Project No 05-1306 ' Page 3 of 4 ' contoured ground water elevation as measured on 20 and 25 May 2005 i ' 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES During the May 2005 ground water monitoring event, TPH-g was detected in well MW-2 at a ' concentration of 3,500 micrograms per Mer (µg11) TPH-d was detected In wells MW-2 through MW-5 and MW-7 at concentrations ranging from 58 µg11 (MW-5) to 560,000 µg/1 (MW-2) ' No additional constituents of concern were detected in ground water samples from any of the seven ground water monitoring wells Analytical results of ground water samples are summarized In Table 2 The laboratory reports (Kiff Protect Nos 050520-KB2 and 050525-BM1), quality ' assurance/quality control(QA/QC)reports,and chain of custody form are included In Appendix C Documents confirming the upload of laboratory electronic deliverable format(EDF)files and depth to water measurements to GeoTracker are Included in Appendix D 4.0. SUMMARY AND CONCLUSIONS r • Based upon data collected during this monitoring event,AGE concludes the following ' • On 25 May 2005,depths to ground water ranged from 5 52 feet to 18 36 feet below the tops of the well casings Ground water elevation at the site ranged from 0 27 feet to 0 76 feet ' below MSL and averaged approximately 0 47 feet below MSL • Ground water was inferred to be flowing toward the southwest and northeast under hydraulic gradients of approximately 0 056 Rift and 0 011 ft/ft, respectively TPH-g was detected in well MW-2 at a concentration of 3,500 µg/1 TPH-d was detected in wells MW-2 through MW-5 and MW-7 at concentrations ranging from 58 µg/l (MW-5)to 560,000 µg/l (MW-2) ' 5.0. RECOMMENDATIONS ' Based on the findings of the environmental activities recounted in this report, AGE recommends continuation of quarterly monitoring events Advanced GeoEnvironmental,Inc