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That work revealed that contamination had moved offsite onto the <br /> adjacent vacant property owned by Hammertown Partners. <br /> 4. In April, 1992, six (B) auger holes were placed; 3 were <br /> located on the Normac property, and 3 on Hammertown. These soil <br /> borings defined the limits of contamination on the Normac site, <br /> and to the north and northwest on the Hammertown site. <br /> 5. In August, 1992, three (3) additional soil borings were <br /> located on the Hammertown property to determine the vertical & <br /> horizontal limits of the small amount of contamination which had <br /> been detected in 3 of the previous holes. <br /> 5. In January, 1994, one (1) soil boring was placed on the <br /> Normac site and one (1) on the Hammertown property for the pur- <br /> pose of defining the limits of the soil plume & obtaining water <br /> samples to determine if the groundwater had been contaminated. <br /> Soil samples were taken at 5' intervals from 20' to the top of <br /> the water table which was encountered at approximately 70-72' <br /> bgl - Water samples were taken by driving a hydropunch tool below <br /> the bottom of the soil boring. Both sample locations were in a <br /> down gradient position from the removed QST. <br /> CONCLUSIONS <br /> Based upon all of the data obtained from the above described <br /> work, the following conclusions can be made: <br /> 3 . The original source of the contamination, (the 1, 000 gallon <br /> UST, ) has been removed, and the removed spoil remediated and <br /> returned to the excavation. <br /> 2. The horizontal & vertical limits of the minor amount of <br /> contamination encountered have been defined in all directions. <br /> 3. All soil and water samples obtained from two down gradient <br /> locations were below detection limits for BTFX & TPH-G. <br /> 4. The very minor amounts of contamination remaining in the <br /> clays are either locked up in the pore spaces, or will be <br /> naturally biodegraded before reaching groundwater. <br /> RUCOMMENDAT I ON: <br /> Based upon a thorough analysis of all of the work done, it does <br /> not appear that there is now, or will be in the future, any <br /> possible degradation of the groundwater from residual amounts of <br /> hydrocarbon compounds beneath the two sites covered by this work. <br /> 10 <br />