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DISPOSITION OF WASTEWATER The 65 gallons of wastewater that were generated from purging of the monitor wells and decontamination of the purging and sampling equipment were transported via a non hazardous waste manifest to Instrat, Inc , a licensed recycling facility GROUNDWATER GRADIENT AND FLOW DIRECTION Figure 2 shows the groundwater elevation gradient and flow direction determined from depth to water measurements at the four on-site monitor wells on June 30, 2005 The groundwater elevation has increased by an average of 1 95 feet since the previous quarterly monitoring round on March S, 2005 The flow direction is to the East/Southeast The overall gradient is 0 002 feet/linear foot RESULTS OF CERTIFIED ANALYSIS OF GROUNDWATER SAMPLES The results of the certified analyses of groundwater samples collected from the four monitor wells on June 30, 2005 are shown in Table 1 Copies of the laboratory reports are included as Appendix C of this report TPH-G concentrations in MW 1-MW3 ranged from a maximum of 310 ug/I at monitor well MW3 to less than the laboratory detection limits of 50 ug/L at MW2 Monitor well MW4, completed in a lower aquifer, showed a TPH-G concentration of 67 ug/l Benzene concentrations in MWI-MW3 ranged from a maximum of 5 S ug/l at MW3 to less than the laboratory detection limits of 0 5 ug/L in MW2 Monitor well MW4 showed a Benzene concentration of 0 58 ug/l MTBE concentrations in MWI-MW3 ranged from a maximum of 6 3 ug/l at MW3 to less than the laboratory detection limits of 0 5 ug/L at MW2 MTBE was not detected above 0 5 ug/l in MW4 TBA was found in MW3 at a concentration of 10 ug/L TBA was not detected in the remaining three monitor wells above the laboratory limit of 5 0 ug/L The remaining fuel oxygenants, ETBE, DIPE, and TAME were not found above the laboratory detection limits of 0 5 ug/L in any of the four monitor wells The lead scavenger 1,2 Dichloroethane (DCA) was found in MW1 at a concentration of 0 7 ug/L DCA was not detected in the remaining three monitor wells above the laboratory limit of 0 5 ug/L The lead scavenger 1,2 Dibromoethane (DBA or EDB) was not found in any of the four monitor wells above the laboratory detection limit of 0 5 ug/L Figure 3 shows the distribution of TPH-G, BTEX, and MTBE in groundwater and the estimated lateral limits of the TPH-G in groundwater as determined from groundwater samples collected June 30, 2005 Most of the gasoline constituent concentrations are 3 Arc Pump QM 4-6, 2005