Perchlorate: EPA Does Not Systematically Track Incidents of Contamination

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Testimony issued by the Government Accountability Office with an abstract that begins "Perchlorate has been used for decades by the Department of Defense, the National Aeronautics and Space Administration, and the defense industry in manufacturing, testing, and firing missiles and rockets. Other uses include fireworks, fertilizers, and explosives. Perchlorate is readily dissolved and transported in water and has been found in groundwater, surface water, and soil across the country. Perchlorate emerged as a contaminant of concern because health studies have shown that it can affect the thyroid gland, which helps regulate the body's metabolism, and may cause developmental impairment in ... continued below

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United States. Government Accountability Office. April 25, 2007.

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Testimony issued by the Government Accountability Office with an abstract that begins "Perchlorate has been used for decades by the Department of Defense, the National Aeronautics and Space Administration, and the defense industry in manufacturing, testing, and firing missiles and rockets. Other uses include fireworks, fertilizers, and explosives. Perchlorate is readily dissolved and transported in water and has been found in groundwater, surface water, and soil across the country. Perchlorate emerged as a contaminant of concern because health studies have shown that it can affect the thyroid gland, which helps regulate the body's metabolism, and may cause developmental impairment in fetuses of pregnant women. In 2005, EPA set a reference dose of 24.5 parts per billion (ppb)--the exposure level not expected to cause adverse effect in humans. Today's testimony updates GAO's May 2005 report, Perchlorate: A System to Track Sampling and Cleanup Results is Needed, GAO-05-462. It summarizes GAO's (1) compilation of the extent of perchlorate contamination in the U.S. and (2) review of peer-reviewed studies about perchlorate's health risks. GAO's 2005 report recommended that EPA work to track and monitor perchlorate detections and cleanup efforts. In December 2006, EPA reiterated its disagreement with this recommendation. GAO continues to believe such a system would better inform the public and others about perchlorate's presence in their communities."

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Government Accountability Office Reports

The U.S. Government Accountability Office (GAO) is an independent, nonpartisan agency that works for the U.S. Congress investigating how the federal government spends taxpayers' money. Its goal is to increase accountability and improve the performance of the federal government. The Government Accountability Office Reports Collection consists of over 13,000 documents on a variety of topics ranging from fiscal issues to international affairs.

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  • April 25, 2007

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  • June 11, 2014, 5:03 a.m.

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United States. Government Accountability Office. Perchlorate: EPA Does Not Systematically Track Incidents of Contamination, text, April 25, 2007; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc294384/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.