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As part of its evaluation of the standard for arsenic in drinking water, EPA is requesting public comment on the analyses it used in developing the standard published on January 22, 2001, and on issues related to arsenic risk and the costs and benefits associated with a maximum contaminant level (MCL) of 3, 5, 10, and 20 parts per billion (ppb).
EPA will consider public comments along with the results of independent panels on arsenic risks, costs and benefits, allowing the agency to develop a strong and affordable arsenic standard that is considerably more protective than the current 50 ppb standard. The public comment period will extend until October 31, 2001. See www.epa.gov/safewater/arsenic.html for more information on the request for comment and the arsenic rule review process.