42 U.S.C. § 300j–17: Estrogenic substances screening program

In addition to the substances referred to in section 346a(p)(3)(B) of title 21 the Administrator may provide for testing under the screening program authorized by section 346a(p) of title 21, in accordance with the provisions of section 346a(p) of title 21, of any other substance that may be found in sources of drinking water if the Administrator determines that a substantial population may be exposed to such substance.