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SUMMARY OF FINDINGS ' On May 17, 2001, field personnel sounded and sampled the Port's former UST Site No 3 monitoring wells MW3-1 through MW3-3 At that time, the local direction of groundwater flow was calculated at approximately N 17 3°W along a gradient of 0 0028 feet/foot (equivalent to 2 8 feet of dip per 1000 feet of horizontal distance) The average depth-to-water on May 17, 2001 was 10 53 feet below the casing-tops of the three project monitoring wells Groundwater samples were collected from the monitoring wells on May 17, 2001 and analyzed for TPHg by EPA Modified Method 8015, MTBE and BTEX by EPA Method 8260 No gasoline as ' free product was or has ever been observed in any well The change in groundwater gradient and direction are indicative of the influence of the Deep Water Channel, which is 1200 feet northeast of the site The following is a comparison of the May 17, 2001 groundwater sample results to the previous quarter,dated February 14, 2001 In monitoring well MW3-1, TPHg and all BTEX constituents were significantly higher in concentration compared to last quarter The sample was not analyzed for MTBE However, concentrations were within the range of historical concentrations for these constituents in this well In monitoring well MW3-2, TPHg and BTEX constituents were significantly lower in concentration as compared to last quarter The sample was not analyzed for MTBE ' . In monitoring well MW3-3, TPHg and volatile organic hydrocarbons toluene, ethylbenzene, and xylenes were significantly lower in concentration as compared to last quarter Benzene was slightly higher in concentration from last quarter at 22 µg/l, up from 12 µg/1 The sample was not analyzed for MTBE CONCLUSIONS/RECOMMENDATIONS Based on a review of the analytical results of the groundwater samples of MW3-1 through MW3-3 for BTEX and TPHg, the following conclusions are presented Free phase petroleum product has not been detected in any of the wells on the site Concentrations vary with the change of groundwater gradient A survey of domestic, municipal, agricultural, industrial and other supply wells within a 2,000-foot radius of the site has been conducted No municipal or drinking water supply ' wells were identified within the 2000-foot radius The following recommendations are presented for this site The Port has completed seven quarters of ground water monitoring for this site The Port will continue to perform quarterly groundwater monitoring usr ati q[r7 doc 8 1