Laserfiche WebLink
SEPTEMBER 1995 <br />. QUARTERLY STATUS REPORT (CONTINUED) <br /> maximum TPH-D concentration was 16,000 mg/kg. The second supplemental site <br /> assessment report was submitted to PHS-EHD in November 1994. <br /> In August 1994, Greyhound returned to a quarterly sampling program 1n response to a <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 1n 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 monitoring 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 /> September 7, 1995 site visit Free-product and hydrocarbon sheens were not observed <br /> in any of monitoring wells <br /> Figure 2 is a site plan that includes water level elevations based on the September 7, <br />•' 1995 water level measurements. The water elevations indicate that groundwater was <br /> flowing south-southwest under an estimated gradient of 0.003 feet per foot. The <br /> groundwater elevations were not contoured because the elevations measured in the three <br /> wells differ by less 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 September 1995 quarterly sampling <br /> event. None of the BTEX analytes were detected in the samples. TPH-D was reported <br /> in samples MW-2 (90 µg/L) and MW-3 (60 µg/L). The laboratory report and chain-of- <br /> custody record are provided in Appendix A. <br /> s� <br /> PARFSSYR01WOL1 WP172721I\08969108969L06 DOC <br /> 2 <br />