Sen. Jim Jeffords, I-Vt., and Democrats on the Senate environment committee have failed to pass an amendment that would have forced operators of large wastewater plants to transition away from using chlorine and other toxic chemicals.

Jeffords had introduced an amendment to the Wastewater Treatment Works Security Act that would have required wastewater plant operators to begin using ultraviolet, ozone, bleach or other alternative technologies for treating wastewater. It would have included $625 million in local grants.

Proponents of the plan fear terrorists could target chlorine gas tanks used at many wastewater treatment plants. Chlorine gas can be deadly if inhaled. At lower levels of exposure it can burn the eyes, skin and lungs.

"Five years after the terrorist attacks of Sept. 11, 2001, this gap in our nation´s security is reckless," Jeffords said. Given the availability of safer technologies, it is irresponsible for the federal government not to require the transition, Jeffords said.

However, Sen. James Inhofe, R-Okla., chairman of the environment committee, said local governments and plant operators are the in the best position to make decisions about treatment technologies.

The environment committee tabled Jeffords´ amendment but passed the underlying bill that encourages wastewater utilities to conduct vulnerability assessments and to develop or expand emergency response plans. The bill also authorizes that EPA to research the affordability, effectiveness and limitations of each treatment technology, but maintains local control over decisions.

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