Republicans push EPA to track mifepristone in water supplies

By Ariel Wittenberg, Alice Miranda Ollstein | 06/15/2026 01:21 PM EDT

EPA tells utilities which contaminants they should monitor in drinking water. State attorneys general have some suggestions.

A box and bottle of mifepristone tablets are shown.

Mifepristone tablets sit on a table at a Planned Parenthood clinic in Ames, Iowa, on July 18, 2024. Charlie Neibergall/AP

Attorneys general from nearly 40 states are trying to influence whether and how the EPA tracks and regulates a pill used in more than two-thirds of abortions.

At issue is a list EPA proposed this spring of contaminants that utilities should monitor in source water or treated drinking water. The list included hundreds of medications, including some forms of birth control and drugs used for both abortions and other medical purposes.

Now, 14 Republican attorneys general have sent a letter to EPAarguing the agency should also include the anti-progesterone pill mifepristone — which is primarily used for abortions. Twenty-two Democratic attorneys general have sent their own letter saying EPA should keep the drug off its list.

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The Republican letter, led by Missouri Attorney General Catherine Hanaway, suggests that an “upsurge in home-setting chemical abortions” following the Supreme Court’s overturning of Roe v. Wade could have “serious implications for the Safe Drinking Water Act.”

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