EPA has a new drinking water strategy

EPA Outlines New Strategy for Safer Drinking Water

In a speech this week at the Association of Metropolitan Water Agencies annual conference in Washington, D.C., EPA Administrator Lisa P. Jackson announced the agency is developing a broad new set of strategies to strengthen public health protection from contaminants in drinking water. The aim is to find solutions that meet the health and economic needs of communities across the country more effectively than the current approach, the agency said. EPA also announced a decision to revise the existing drinking water standards for four contaminants that can cause cancer.

"To confront emerging health threats, strained budgets, and increased needs -- today's and tomorrow's drinking water challenges -- we must use the law more effectively and promote new technologies," Jackson said. "That means fostering innovation that can increase cost-effective protection. It means finding win-win-win solutions for our health our environment and our economy. And it means broad collaboration. To make our drinking water systems work harder, we have to work smarter."

The new vision is meant to streamline decision-making and expand protection under existing law and promote cost-effective new technologies to meet the needs of rural, urban, and other water-stressed communities. Specifically, this shift in drinking water strategy is organized around four key principles:

  • Address contaminants as a group rather than one at a time so that enhancement of drinking water protection can be achieved cost-effectively.
  • Foster development of new drinking water treatment technologies to address health risks posed by a broad array of contaminants.
  • Use the authority of multiple statutes to help protect drinking water.
  • Partner with states to share more complete data from monitoring at public water systems.

EPA said its current approach to drinking water protection is focused on a detailed assessment of each individual contaminant of concern and can take many years. This approach not only results in slow progress in addressing unregulated contaminants but also fails to take advantage of strategies for enhancing health protection cost-effectively, including advanced treatment technologies that address several contaminants at once, the agency added. The outlined vision seeks to use existing authorities to achieve greater protection more quickly and cost-effectively.

While exploring this shift in strategy, EPA said it continues to look for opportunities to increase protection using traditional approaches. In the newly finalized review of existing drinking water standards, the agency determined that scientific advances allow for stricter regulations for the carcinogenic compounds tetrachloroethylene, trichloroethylene, acrylamide, and epichlorohydrin.

Tetrachloroethylene and trichloroethylene are used in industrial and/or textile processing and can be introduced into drinking water from contaminated ground or surface water sources. Acrylamide and epichlorohydrin are impurities that can be introduced into drinking water during the water treatment process. Within the next year, EPA will initiate rulemaking efforts to revise the tetrachloroethylene and trichloroethylene standards using the strategy’s framework. Revision of epichlorohydrin and acrylamide standards will follow later. EPA said that as it looks at its new approach to addressing groups, it will consider whether revisions to these standards fit into that approach.

EPA noted there are ongoing efforts on 14 other drinking water standards. For example, the agency is considering further revisions to the lead and copper rule in order to better address risks to children. EPA also has ongoing health risk assessments or information gathering for chromium, fluoride, arsenic, and atrazine. Meanwhile, the agency continues to consider whether to regulate perchlorate. When these efforts are complete, should additional action be required, EPA said it will move ahead to address any risks in an expedited manner.

The agency said it believes it is critical to enhance drinking water protection to address the growing number of contaminants. For more information on the new strategy, go to www.epa.gov/safewater/sdwa/dwstrategy.html. For more on the six-year review, visit www.epa.gov/safewater/review.html.

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