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July 28, 2003

Contact: Fred Mumford
(609) 984-1795

Public Comment Period Begins Tomorrow on Air Pollution Control Permit for Hamilton Post Office Anthrax Cleanup

(03/105) TRENTON--New Jersey Department of Environmental Protection Commissioner Bradley M. Campbell today announced the start of a public comment period on a state air pollution control permit for fumigation of the Hamilton Post Office.

"It is important that we remain vigilant in our efforts to oversee the upcoming anthrax cleanup in Hamilton Township," said Commissioner Campbell. "Sharing information with the community about environmental safety measures required by the state to ensure a successful outcome helps residents learn about how the fumigation process will proceed."

A 30-day public comment period for the air permit runs July 29 through August 28. Also, DEP technical staff will be available to answer questions at the next community meeting on the Hamilton Post Office cleanup scheduled for 7 p.m. Thursday, August 7 at the Reynolds Middle School auditorium, 2145 Yardville-Hamilton Square Road.

DEP is conducting various environmental reviews of the U.S Postal Service's cleanup plan along with the Department of Health and Senior Services, New Jersey State Police, U.S. Environmental Protection Agency and local officials to coordinate approval of all work.

"We continue to provide a thorough analysis of air pollution control requirements, emergency response plans and chemical usage along with other state, federal and local officials as this project moves closer to anticipated startup testing this fall," said Commissioner Campbell.

The U.S. Postal Service proposes to expose interior areas of the building to chlorine dioxide gas as part of a sanitization of the Hamilton Post Office to address anthrax contamination. During the fumigation process, high efficiency particulate arrestor (HEPA) filters will capture any anthrax spores that might be vented from the building. In addition, scrubber and activated carbon filter systems will be used to neutralize and remove chlorine dioxide in the indoor air before it is vented outdoors. Stack testing of the vent from the air pollution control systems and outdoor air quality monitoring will be conducted to confirm that concentrations of chlorine dioxide are below allowable levels.

An air pollution control fact sheet with more details about the permit is available on DEP's web site at

Public comments on DEP's intent to approve an Air Pollution Control Preconstruction Permit for the Hamilton Post Office cleanup project may be sent to:

New Jersey Department of Environmental Protection
Air Quality Permitting Element
Bureau of Preconstruction Permits
401 East State Street - 2nd Floor, Box 27
Trenton, NJ 08625

The draft permit, permit application, stack test protocol, and air monitoring protocol are available for review at the address listed above. If you would like to inspect the draft permit at DEP's Trenton headquarters, please call in advance for an appointment at (609) 633-2829. These documents also will be available for review at the Hamilton Township Clerk's office, 2090 Greenwood Avenue, and at the DEP's Horizon Center offices, 300 Horizon Boulevard, Robbinsville, (609) 584-4100.




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