NYC 9/11 Public Portal Document
NYC DEP to Complete Downtown Cleanup
November 6, 2002
By November 30, 2002, the New York City Department of Environmental Protection (DEP) will
officially complete a six-month effort to remove potentially hazardous dust and debris that
accumulated on the roofs, windows and facades of downtown buildings following the World
Trade Center (WTC) collapse. When the project draws to a close at the end of the month, crews
will have cleaned more than 2.5 million square feet of exterior building space. The project has
been a feat of labor and logistics with DEP crews working around the clock and making every
possible accommodation to minimize disruptions to area residents, businesses and institutions.
The project began in January 2002, when the DEP began inspecting buildings in Lower
Manhattan for exterior residue containing more than 1 percent of asbestos, the threshold set by
the U.S. Environmental Protection Agency (EPA), the U.S. Department of Labor, New York
State and the DEP. Among a small sample of buildings close to the WTC site, 48 percent tested
positive for asbestos contamination. This finding prompted the DEP to begin a comprehensive
inspection of the more than one thousand buildings in the area.
"There was great concern among people in Lower Manhattan," said Robert Avaltroni, Deputy
Commissioner of the DEP. "We needed to act quickly to relieve that anxiety so people who live
and work in the area could move forward with their lives."
The DEP inspected 1,072 buildings, of which 326 - less than 30 percent - were found to have
some form of asbestos-contaminated WTC debris and were earmarked for cleaning. While
much of the debris contained only trace amounts of asbestos well within the range of generally
accepted standards, the DEP decided to have all 326 buildings cleaned to help alleviate public
concern regarding potential exposure to asbestos and other contaminants.
The DEP notified the owners of the affected buildings, giving them the option to have the
cleanup done by the DEP or through an independent contractor of their own choosing. The
owners of 100 buildings elected to have their buildings cleaned independently. (The DEP has
since re-inspected those buildings and certified that asbestos-containing material had been
removed.)
On June 3, DEP cleanup crews went into action, working 24 hours a day, seven days a week --
with the exception of major holidays and days when inclement weather made cleaning unsafe.
To date, DEP contractors have cleaned 190 buildings totaling approximately 2.5 million square
feet of building exterior space. Throughout the process - inspection, cleanup and re-inspection -
- the DEP has worked closely with Federal Emergency Management Agency (FEMA) and the
EPA.
"We went into every crevice and every corner of the buildings we cleaned," said Avaltroni.
"Wherever we saw debris, we removed it."
DEP crews reached building surfaces with cherry pickers, scaffolds and platforms. They used
low-pressure spray-guns as well as their own hands to clean the debris. The New York City
Department of Buildings (DOB) secured necessary permits and helped erect the scaffolds and
riggings. When crews identified potential structural problems - including loose bricks and
cracked facades ~ the DOB responded promptly to protect pedestrians.
Liz Berger, a long-time resident and employee in the area, appreciates the effort. "The City and
the DEP were genuinely interested in understanding the issue and solving the problem," she
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