DEP Invoice or Financial Record, September 30, 2001

NYC 9/11 Public Portal Document

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■ V -- he said. The drilling machine for the x; anchors, for example, will have to do ’J. a its work hanging down over the lip of the hole rather than crawling along on solid footing on the bottom of the excavation. Mr. Tamaro thinks it ___ a may be possible to dig deeper in the center of the basement than along die wall, as long as there is sufficient ■8 debris piled up along the wall. But how much deeper will depend on the nature of the debris. He declined to make a precise esti­ <; mate of how long this process might w- take, except to say that it could be months, depending on how much of -tbeoriginal.structure_isstill_intact. The condition of the bathtub wall is also unknown, according to Mr. Ta­ Frances Roberts for The New York Times maro. Despite some reports that res­ George J. Tamaro, second from right, an expert on World Trade Center cue workers have reported seeing foundations, with colleagues at Mueser Rutledge Consulting Engineers: leaks on the walls, he thinks there is from left, Andrew Pontecorvo, Alfred H. Brand and Theodore Popoff. unlikely to be much water in the basement; if there were, he says, much more water would be rushing ciates, an engineering company that Tamaro said. A bomb blast in 1993 over to New Jersey. worked on the trade center complex, took out two of the floors but the wall Martha Huguet, a spokeswoman at said a leak would not necessarily still held. The wall has good deal of Mueser Rutledge, said the firm had trigger a catastrophic flood, but flexibility, he said, like a diaphragm. not received any reports of leaks. would create a problem of slow ero­ The truth is, though, “we have no Nor has the Port Authdrity, accord­ sion thatv/ould complicate the clean­ sense of the condition of the wall ing to a press spokesman there. Dr. up and excavation. around the perimeter,” Mr. Tamaro Jeremy Isenberg of Weidlinger Asso­ . The bathtub wall is sturdy, Mr. said.

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