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AUGUST 1994 QUARTERLY STATUS REPORT (CONTINUED) • A site map g delineatin groundwater elevation contours based on recent data: Groundwater elevations determined by water level measurements made on August 30, 1994 suggest a southerly groundwater flow direction under a low hydraulic gradient_(Figure 2) _ I _ - - I"r r � , _ a • Analytical results from all previous sampling events including laboratory reports for the most recent sampling event and chain-of-custody documentation: A summary of the analytical results from all previous groundwater sampling events is presented in Table 3. A summary of the analytical data for all soil samples collected to date with the exception of those samples recently collected during the Supplemental Site Assessment is presented in Table 4. The laboratory results from the most recent groundwater sampling event, and chain- of-custody documentation are provided in Appendix A. Site map delineating contamination contours for soil and groundwater based on recent data: A site map showing analytical results for soil samples collected during all previous site investigations, including the most recent Supplemental Site Assessment, will be provided in the next quarterly monitoring report. r A map delineating the extent of groundwater contamination has not been prepared because TPH-D was detected at low levels in each of the groundwater samples collected dunng the August 30, 1994 sampling event. • Tank owner commitment letter: The cover letter submitted with this report is intended to serve as the tank owner commitment letter Greyhound has approved the report and designated ES as their responsible party • The quantity of groundwater and vapors removed during the reporting period and cumulative to date: f Not Applicable PARFSSYROIIVOLI WP1725218108969108969L04 DOC 4