AWWA releases cost analysis of anticipated perchlorate regulation


DENVER -- The American Water Works Association today releases a new cost-impact assessment for an anticipated perchlorate regulation that is currently pending at the U.S. Environmental Protection Agency.

This new assessment updates a 2009 review of cost by including additional treatment strategies and accounting for regulatory limits already in place in California and Massachusetts. In addition to ion exchange, this assessment considers also costs associated with blending, source abandonment and development of new sources. In all, the estimated national compliance costs for a perchlorate maximum contaminant level (MCL) ranging from 2 to 24 parts per billion (ppb) is smaller than estimated compliance costs for other drinking water regulations.

According to Kevin Morley, AWWA Government Affairs, the relatively low national compliance cost reflects the fact that only a small number of public water systems are expected to be affected by any potential perchlorate regulation.

However, Morley says, “because only a small number of systems would carry the cost, we expect the economic impact to individual systems to be significant. Small water systems in particular could see treatment costs increase by three dollars per 1,000 gallons.”

The full assessment is available for download on the AWWA website.

Established in 1881, the American Water Works Association is the largest nonprofit, scientific and educational association dedicated to managing and treating water, the world’s most important resource. With approximately 50,000 members, AWWA provides solutions to improve public health, protect the environment, strengthen the economy and enhance our quality of life.

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