Tuesday, August 16, 2011
Many health and environmental groups are urging the Environmental Protection Agency to regulate perchlorate in drinking water. According to the Environmental Working Group report, perchlorate, the main ingredient of rocket and missile fuel, contaminates drinking water supplies, groundwater or soil in hundreds of locations in at least 43 states. EWG estimates that the drinking water of 20 million Americans is affected. The Environmental Protection Agency has not yet set a standard for this chemical under the Safe Drinking Water Act.
On October 10, 2008, the EPA published a preliminary determination not to regulate perchlorate, but after receiving comments, has been reconsidering whether to regulate ever since. In 2009 EPA requested more comments in a supplemental request. In July, EPA Deputy Administrator Robert Perciasepe was encouraged to move forward with the regulation during a Senate Environment and Public Works Committee hearing. According to the environmental news reporting service Greenwire, industry opposes regulation by claiming exposure to low levels of the chemical are not harmful, and that reports of widespread contamination are due to improvements in perchlorate detection that can find even trace -- and safe -- amounts of the chemical in water. However, a number of studies suggest otherwise, including those used by the California Department of Public Health to justify regulating the chemical in its state program.
Perchlorate is a specific example of one of EPA’s failure to identify and regulate contaminants under the SDWA, a failure documented by the General Accounting Office in a report entitled EPA Health Risk Assessments issued in July. Like so many of the regulatory efforts I have mentioned here this year, the costs of protecting the public health are again pitted against raising the costs of doing business. Not surprisingly, the next step in the process is for EPA to scrutinize how regulating perchlorate will affect business. EPA is required now to form a small business advocacy review (SBAR), consisting of obtaining comments from “small entity representatives” (SERs) when drafting a rule that could have a "significant economic impact." SERs are selected from government, nonprofits and businesses. Bigger businesses and other entities will continue to provide input during the formal notice and comment periods, but this step will reinforce EPA’s mandate to focus more closely on the economic impacts of decisions purported to be for the benefit of public health.