Laserfiche WebLink
CECCHIM, CECCHIM AND GIOVANNOM FUELING ISLAND <br /> -3.0 FffNDffNGS <br /> 3.a F1 ELD 013SIER 17 A ll EO S <br /> On March 20, 1995, ESE observed that the well box for well SI-1 was still broken and in need of <br /> repair The remaining ground water monitoring wells, SI-2, SI-3, and UST-1 appeared in good <br /> condition ESE noted that the interior of well UST-1 was clean and free of surface leakage <br /> 3.2 GROUND WATIER M®MT®MING <br /> On March 20, 1995, ground water levels in wells SI-1, SI-2, SI-3, and UST-1 were <br /> approximately 70 feet below the top of casing No free product was observed in any of the <br /> wells Table 1 tabulates water level measurements and elevation calculations for these wells, and <br /> Figure 2 shows these data in map view <br /> The ground water flow direction beneath the site at the time of measurement appears to be toward <br /> the northeast to east in the area of the fueling island The calculated ground water gradient was <br /> approximately 009fe�x/_foQL r 48 feet per mile between the "small" well and UST-1 The <br /> gradient appears flatter in the northern portion of the site The difference in gradient is likely due <br /> to pumping influences of the onsite wells <br /> Analytical results for well UST-1 are shown on Table 2 - Analytical Results of Ground Water <br /> Samples and on the enclosed laboratory certificates o analysis (Appendix A) Ground water from <br /> UST-1 contained benzenet,'-toluene;"'�ethylbenzeneand total xylenes('BTEX) at a maximum <br /> concentration of 1 9 micrograms per liter (µg11) TPH as gasoline was reported at a maximum <br /> concentration of 0 077 milligrams per Liter (mg/L) or parts per million in the initial sample and <br /> 0 061 mg/L in the quality control duplicate TPH as diesel was reported at a maximum <br /> concentration of 0 75 mg/L in the initial sample and 0 72 mg/L in the quality control duplicate <br /> Analysis of the trip blank accompanying the UST-1 sample reported nondetectable concentrations <br /> of BTEX analytes <br /> 3.2.1 DISCUSSION <br /> The ground water elevation calculated for well UST-1 has increased approximately six feet <br /> relative to that reported for December 1994 (Fourth Quarter 1994) This increase is likely due to <br /> F 1694540011QM95 RPT 3 Environmental Science& Engineering Inc <br />