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Mr. Stuart Teuscher 2 January 30, 1996 <br /> t • <br /> A 24-inch wide by 6-inch deep (minimum) footing will be constructed on the <br /> bedrock face with the center of the footing in alignment with the keyway; <br /> • The footing shall be constructed using the same concrete specifications as the <br /> concrete cut-off wall presented in Drawing 5116-E2. The footing will be <br /> reinforced with rebar; <br /> • To provide a watertight seal between the footing and concrete cut-off wall, a <br /> seal such as "PVC Water Stop" or similar product shall be used. The water <br /> seal is to placed into the footing during completion; and <br /> • After the footing has cured, the concrete cut-off wall shall be formed onto the <br /> footing, being positioned along the footing axis. Prior to construction of the <br /> cut-off wall,the surface of the footing shall be cleaned to be free of soil, loose <br /> rock or foreign materials. <br /> This recommended modification to the cut-off wall will provide a seal against the <br /> bedrock surface, which will minimize seepage beneath the cut-off wall. Additional <br /> sealants are not recommended to augment this modification. <br /> I hope this modification meets with your approval. If you have any questions or <br /> comments, please feel free to call me at(303) 850-9852. <br /> Respectfully, <br /> Titan Environmental Corporation <br /> 1 <br /> ohn F. Lupo, P.E. <br /> Project Manager <br /> cc: Bryce Romig <br /> -- -- <br /> AV.IODDOC _ _ Environmental <br />