E.P.A. Makes Preliminary Determination to Regulate Strontium in Drinking Water

WASHINGTON - The E.P.A. has made a preliminary determination to regulate strontium in the nation's drinking water. Strontium is a naturally occurring element that, at elevated levels, can impact bone strength in people who do not consume enough calcium.

A regulatory determination is a formal decision on whether E.P.A. should initiate a rulemaking process to regulate a specific contaminant. The Safe Drinking Water Act requires that every 5 years, E.P.A. develop a contaminant candidate list and then make a regulatory determination for at least 5 contaminants on the list.

Based on accessible information, the agency has initially determined that strontium has adverse health effects. Strontium replaces calcium in bone, affecting skeletal development. Although strontium affects all life stages, infants, children, and adolescents are of particular concern because their bones are developing. Strontium has been detected in 99 percent of public water systems and at levels of concern in seven percent of public water systems in the country.

4 other contaminants (dimethoate, 1,3dinitrobenzene, terbufos, and terbufos sulfone) are either not found, or are found at low levels of occurrence in public water systems, thus requiring no regulation at this time.

These determinations are preliminary. E.P.A. will evaluate public feedback following a 60-day public review period and determine whether to issue a final determination to regulate strontium. If E.P.A. makes such a determination, the Agency will begin the process of developing a suggested rule, with hopes of publishing the final regulatory determinations in 2015.

For more information, please visit: http://water.epa.gov/scitech/drinkingwater/dws/ccl/ccl3.cfm .

R248

There are currently no comments for this story. Be the first to add a comment!
Click here to add a comment about this story.