US EditionEPA Says It Will Propose Drinking Water Limit for Perchlorate, but only because Court Ordered It
EPA will seek public input on perchlorate limits of 20, 40, and 80 parts per billion affecting about 66,000 water systems, acting under a court order despite limited health benefits.
- The EPA said it would propose a drinking water limit for the chemical perchlorate, which is harmful and found in rockets and explosives, but only because a court ordered it to do so.
- The EPA argued that setting a perchlorate limit would not significantly benefit public health, as high levels are infrequent, and most water systems would incur substantial costs with limited benefits.
- Perchlorate can affect thyroid function and child development, and advocates sued to force the EPA to regulate it after the agency initially decided no standard was necessary.
37 Articles
37 Articles
Associated Press News
EPA says it will propose drinking water limit for perchlorate, but only because court ordered it
The Environmental Protection Agency says it will propose a drinking water limit for perchlorate, a chemical in certain explosives.
EPA proposes national drinking water rule for perchlorate
The EPA has proposed a new regulation to monitor and potentially limit perchlorate levels in public drinking water, following a court mandate. The proposal includes setting a health-based MCLG of 0.02 mg/L and considers three enforceable MCLs. Public comments are open until March 9, 2026, with a virtual hearing scheduled for February 19, 2026.
The Environmental Protection Agency announced on Monday that it will propose a limit on the presence in drinking water of perchlorate, a harmful chemical present in rockets and other explosives, but stated that doing so would not significantly benefit public health and that it does so only because a court ordered it.
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