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USA 65 - QTR RPT 12/94 Certified Laboratory and signed over to the lab using standard chain-of-custody procedures Field notes describing the collection of water samples are included in Appendix A Chemical Analvsis „Results The water samples were analyzed at Anlab Analytical Laboratory (DHS #1468) for Total Fuel Hydrocarbons (gasoline) with BTEX distinction, utilizing EPA Methods 5030 and 602, respectively The analytical results from the water samples (MW1, MW2, MW3 , MW5, MW6 and MW7) were all Below Reportable Limits (.SRL) MW4 and MW8 indicated a level of TFH of 031 mg/L, and 0 33 mg/L respectively Benzene concentrations are 0 6 and 1 7 µg/L for MW4 and MW8 respectively The current localized impact of TFH-gasoline and benzene on ground water is depicted in Figures 5D and 6D The analytical results and pertinent reference data are listed in Table 1 Anlab' s laboratory report is included as Appendix B DISCUSSION OF RESULTS The ground water data obtained during the current monitoring round show significant changes since the last quarterly monitoring report Ground water flow direction is to the south- southwest from MWS to MW7 with an average gradient of 0 006 feet per linear foot and to the north, northwest from MW3 to MW2 Ground water at the site is currently in a recharge cycle Previous discharge and recharge cycles at the site have produced sporadic traces of TFH or BTEX constituents in some of the monitoring wells The ' spotty' occurrence of contamination in MW4 does not appear to be solely related to depths of the aquifer but are probably representing a localized ground water flow from stratigraphy not recognized from well to well at the site CONCLUSIONS 1 Eight monitor wells were sampled MW1, MW2, MW3 , MW5, MW6 and MW7 showed no detectable levels of contamination I 2 MW4 and MW8 have levels of Total Fuel Hydrocarbons as gasoline of 0 031 and 0 33 ppm and Benzene of 0 6 and 1 7 ppb, respectively 4