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SUMMARY OF FINDINGS ' On February 19, 2002, 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 North 9 2° E along a gradient of 0 00323 foot/foot (equivalent to ' 3 23 feet of dip per 1000 feet of horizontal distance) The average depth-to-water on February 19, 2002 was 10 70 feet below the casing-tops of the three project monitoring wells ' Groundwater samples were collected from the monitoring wells on February 19, 2002 and analyzed for TPHg by EPA Modified Method 8015, MTBE and BTEX by EPA Method 8260 No gasoline as free product 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 1,200 feet northeast of the site The following is a comparison of the February 19, 2002 groundwater sample results to the previous quarter,dated November 19, 2001 In monitoring well MW3-1, TPHg and volatile organic hydrocarbons benzene, toluene, ethylbenzene, and xylenes (BTEX) were significantly lower in concentration as compared to last ' quarter The sample was not analyzed for MTBE In monitoring well MW3-2, TPHg and BTEX were significantly lower in concentration as coinpared to last quarter The sample was not analyzed for MTBE In monitoring well MW3-3, TPHg and benzene concentrations had slightly increased and toluene, ' ethylbenzene, and xylenes concentrations had slightly decreased as compared to the previous quarter 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 TPHg and BTEX,the following conclusions are presented Concentrations vary with the change of groundwater gradient and elevation 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 2,000-foot radius The following recommendations are presented for this site • The Port has completed ten quarters of ground water monitoring for this site The Port will continue to perforin quarterly groundwater monitoring ' • In December 2001,the Port implemented the field work portion of the DHS/EHD-approved work plan to further assess the lateral and vertical extent of petroleum hydrocarbons in soil and is groundwater at Site 3 A February 5, 2002 letter report summarized results of the fieldwork Ivat pk3 gtrl0 doc