Environmental Protection Agency May 7, 2007 – Federal Register Recent Federal Regulation Documents

The Great Lakes Initiative Toxicity Data Clearinghouse (Clearinghouse) is available for use by States, Tribes, and other interested parties. The online Clearinghouse, developed in cooperation with the United States Environmental Protection Agency (USEPA) Headquarters, Regions 2, 3, and 5, and the Great Lakes States and Tribes, acts as a central location for toxicity data, exposure parameters, and supporting documents used in deriving water quality criteria and guidance values in the Great Lakes Basin.