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Page 2 <br /> Mr. Ed Eckenroth <br /> Subject: Hazardous Waste Containment <br /> The "E-Coat"slab is poured monolithically and,therefore,contains no joints,except for the cold <br /> joint constructed in the pit area between the walls and the pit floor. This joint,however,was not <br /> constructed with a water stop, and although there is reinforcing through the joint,there may be <br /> some potential for seepage to the native soils outside of the sump wall. Therefore, we suggest <br /> a modification to the cold joint at the walls and the floor of the pit as follows: <br /> 1. Rout out the joint to approximately 3/4- of depth. <br /> 2. Apply a solid continuous 1/2" diameter bead of ADEKA ULTRA SEAL P-101 <br /> and allow approximately 24 hours to set up, or until the material becomes "tack <br /> free". <br /> 3. Seal joint with an application of a commercial hydraulic cement, such as <br /> THOROPLUG or equal. <br /> In conclusion, we believe that Dana Corporation is well positioned to contain any unexpected <br /> tank spill. The potential for spill obviously is decreased by the storage tanks being required to <br /> be constructed to meet certain standards. We Mist this information is helpful to you,and should <br /> you have any questions, please do not hesitate to call. <br /> Very truly yours, <br /> SIEEGFRIEED ENGINEERING, Inc. <br /> Wayne M. P.E. <br /> jb <br /> If <br /> f. <br /> F-=%94221L6.WMW <br />