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GOLD BOND BUILDING PRODUCTS 2 25 MAY 1986 <br /> PRELIMINARY SITE ASSESSMENT <br /> Investigate the history and use of the tanks and products they contain or may have contained. <br /> Chemical data e.g., solubility, specific gravity, octanol-water coefficient, etc., for identified <br /> compounds should be summarized. This information should be used to assess whether the <br /> compounds will readily adsorb onto the soil column, float on the phreatic water surface and to <br /> what extent they may dissolve in ground water. <br /> WASTE SOLVERT TANKS <br /> • Both tanks are positioned vertically in the ground with what appears to be a removable top and <br /> no place to attach a chain. How will these tanks be removed without destroying the integrity <br /> of the tanks? <br /> • A soil sampling plan should be submitted for definition of the horizontal and vertical extent of <br /> soil pollution, if any, resulting from tank leakage and the obvious spills surrounding the <br /> tanks. This should include soil borings to ground water around the tank and borings to <br /> ground water below the tank. Analyses should include EPA 601 , 602, PCBs, metals and any <br /> other compound(s) stored in the tanks not covered by these analyses. <br /> • Gold Bond should remove contaminated asphalt and soil in the area surrounding the waste <br /> solvent tanks. <br /> • A ground water assessment plan designed to define the local gradients and assess if any <br /> pollution of the ground water has occurred. A minimum of three monitoring wells are <br /> necessary,one "upgradient"and two in the tank area. <br /> PRODUCT TANK <br /> It is our understanding that the tanks have not and will not be precision tested. Inventory <br /> reconciliation also has not been submitted. In short, no data on the integrity of the tanks has <br /> been submitted. Therefore, Gold Bond should submit a more detailed tank removal and soil <br /> sampling plan for these tanks . Due to the tanks close proximity to ground water, monitoring <br /> wells may be necessary if soil contamination is found. Gold Bond's revised plan should address <br />