Science Experts Tell EPA to Regulate Toxic Perchlorate

One of the many travesties in the failure to properly protect drinking water in the United States is EPA’s decades-long inability to set an enforceable drinking standard for perchlorate, a chemical that harms the thyroid – critical for normal growth and development – and that contaminates drinking water systems serving over 17 million people in the U.S.  EPA determined back in 2011 that perchlorate meets the criteria for regulation as a contaminant under the Safe Drinking Water Act. EPA concluded that, “perchlorate may have an adverse effect on the health of persons and is known to occur in public drinking water systems with a frequency and at levels that present a public health concern.”