On April 18, 2019, EPA Administer Wheeler signed a proposed rule to establish federal Clean Water Act (CWA) aluminum aquatic life criteria for freshwaters under the state of Oregon’s jurisdiction. This rule is being proposed to ensure that criteria are set at levels to protect aquatic life from the effects of exposure to harmful levels of aluminum. Aluminum naturally occurs at low levels in surface waters, such as rivers and lakes. However, at higher concentrations, it can be toxic to aquatic life. EPA’s proposal uses the latest scientific knowledge on aluminum toxicity in water and proposes to promulgate aluminum criteria for Oregon freshwaters based on EPA’s 2018 national aluminum criteria recommendation to protect freshwater aquatic life.
- [See Fact Sheet: Proposed Federal Aquatic Life Criteria for Aluminum in Oregon Freshwaters ]
- Federal Register Notice: Proposed Rule for Water Quality Standards; Aquatic Life Criteria for Aluminum in Oregon (May 1, 2019)
Comments on the Proposal
EPA accepted comments on the proposed rule at regulations.gov (Docket ID No. EPA-HQ-OW-2016-0694). The 45-day comment period closed on June 17, 2019.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Fact Sheet: Proposed Federal Aquatic Life Criteria for Aluminum in Oregon Freshwaters (PDF)(2 pp, 179 K, April 2019, EPA 823-F-19-002)