Laserfiche WebLink
3 0 Results and Discussion <br /> This section presents a brief discussion of the June 1999 quarterly groundwater monitoring <br /> event conducted at the Site on June 7, 1999 <br /> The laboratory report provided by Quanterra was reviewed by Dames & Moore's data <br /> validation group in order to insure that the reported data results are accurate Results of the <br /> Dames & Moore QA/QC are included in Appendix B All data were determined to be <br /> acceptable for use <br /> 3 1 Groundwater Levels <br /> Groundwater was measured to be approximately 35 feet below ground surface on June 7, <br /> 1999 The direction of groundwater flow in June 1999 was towards the north-northeast, as <br />' illustrated in Figure 3 <br /> I3 2 TPH-D in Groundwater <br /> TPH-D groundwater results for samples collected on June 7, 1999 have been compiled with <br /> previous data in Table 3 TPH-D was not reported in any samples <br /> TPH as a hydrocarbon mixture not matching the fresh diesel standard was reported for <br /> samples DMW-6 (540 ug/L) and its duplicate MW-60 (580 ug/L), collected from DMW-6 on <br /> June 7, 1999 TPH was also reported at a concentration of 250 ug/L in the sample collected <br /> at DMW-7 <br /> The unknown hydrocarbon was reported to represent TPH as a hydrocarbon mixture in the <br /> range of n-C8 to n-C40, which did not match the diesel fuel reference Review of <br />' chromatograms from previous monitoring events suggests that the unknown hydrocarbon is <br /> a degraded diesel with an additional heavier weight hydrocarbon component <br /> 4 0 Future Activities <br />' Additional groundwater samples will be collected and analyzed for TPH-D during <br /> September 1999, as required by the PHS/EHD A final quarterly report that summarizes and <br /> discusses data will be issued following the fourth monitoring event Possible additions to <br /> the monitoring program, including analysis for BTEX, are being considered at this time, and <br /> may be included in the fourth monitoring event <br /> DAMES&MOORE 3 J 1AFPIREPORTI3QRPT DOC <br />