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11 til <br /> MARCH 1996 <br /> QUARTERLY STATUS REPORT (CONTH44UED) <br /> • In August 1994 Greyhound returned to a quarterly sampling program in response to a <br /> g � Y q Y <br /> request from PHS-EHD (letter dated August 12, 1994) The PHS-EHD was concerned <br /> about rising water levels beneath the site and the detection of TPH-D in one of the <br /> groundwater samples collected in June 1994. <br /> The second Supplemental Site Assessment Report was submitted by Greyhound to <br /> PHS-EHD in November 1994. Greyhound has received comments to the Supplemental <br /> Site Assessment Report in a letter dated February 3, 1995. In response, one additional <br /> groundwater_monitonng well_was proposed to define the western limits of the soil and <br /> groundwater contamination. <br /> • Water Level measurements from most recent sampling event <br /> Table 1 provides water level measurements and other physical data obtained during the <br /> March 5, 1996 site visit. Free-product and hydrocarbon sheens were not observed in <br /> any of monitoring wells. <br /> Figure 2 is a site plan that includes water level elevations based on the March 5, 1996 <br /> water level measurements. The water elevations indicate that groundwater was flowing <br /> south under an estimated gradient of 0 004 feet per foot. The groundwater elevations <br /> were not contoured because the elevations measur in the three wells differ by less <br /> than 0 30 feet. <br /> • Water Level measurements from previous monitoring events <br /> Table 1 presents the water level measurements and other physical data obtained during <br /> previous monitoring events Free-product and hydrocarbon sheens were not observed <br /> in any of monitoring wells during these events <br /> • Analytical results from most recent sampling event <br /> Table 2 summarizes the analytical results from the March 1996 quarterly sampling <br /> event. None of the BTEX analytes or TPH-D were detected in the samples. The <br /> laboratory report and chain-of-custody record are provided in Appendix A <br /> • Analytical results from previous sampling events <br /> Table 3 presents a summary of the analytical results from all previous groundwater <br /> sampling events <br /> Table 4 presents a summary of the analytical results from all previous soil sampling <br /> events <br /> PARFSSYROIIVOLI WP1728879108969108969L01 DOC <br /> 2 <br />