Whitman, who led the EPA under George W. Bush, suggests the agency use its authority to seal gaps in "extremely limited" Department of Homeland Security rules designed to prevent releases of toxic chemicals, according to an April 3 letter she wrote to Jackson that was obtained by the Center for Public Integrity.
Those 2007 rules, Whitman wrote, bar DHS from requiring industry to take specific measures to prevent accidental or terrorism-related toxic releases. The rules exempt "thousands of chemical facilities, including all water treatment plants and hundreds of other potentially high-risk facilities, such as refineries located on navigable waters," she wrote.
The EPA has the power to regulate chemical security under 1990 amendments to the Clean Air Act, Whitman noted, writing that that the act's "general duty" clause "obligates chemical facilities handling the most dangerous chemicals to prevent potentially catastrophic releases to surrounding communities.
"Facilities with the largest quantities...should assess their operations to identify safer cost-effective processes that will reduce or eliminate hazards in the event of a terrorist attack or accident," Whitman wrote. "This has never been required and today hundreds of these facilities continue to put millions of Americans at risk."
According to DHS testimony this year, there are 4,458 high-risk facilities nationwide.
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