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Methylmercury Fish Tissue Criterion
Draft Implementation Guidance
This document provides technical guidance to States and authorized Tribes on how they may want to use the January 2001 fish tissue-based recommended water quality criterion for methylmercury in surface water protection programs (e.g., TMDLs, NPDES permitting). The draft guidance addresses questions related to water quality standards adoption (e.g., site-specific criteria, variances), assessments, monitoring, TMDLs, and NPDES permitting. The guidance consolidates existing EPA guidance where relevant to mercury.
- Fact sheet (August 2006)
- USEPA. 2006. Draft Guidance for Implementing the January 2001 Methylmercury Water Quality Criterion. (EPA 823-B-04-001)
EPA's Mercury home page provides a broad range of information about mercury.
Criterion
The criterion is a concentration of methylmercury in fish that we calculated to protect human health. States and tribes may use the criterion as the basis for establishing water quality standards.
- Fact Sheet with questions and answers describing the criterion for methylmercury.
- Methylmercury Criteria Document (EPA-823-R-01-001)
- Federal Register Notice (January 8, 2001)
Historical Information
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Federal Register Notice of Intent To Develop Ambient Water Quality Criteria for Protection of Human Health--Arsenic, Methylmercury, and Carbofuran; Notice of Data Availability; Request for Data and Information (October 12, 2000)
- References
This list is a compilation of references currently used in the draft Ambient Water Quality Criteria for Methylmercury. It is subdivided into sections including human health, bioaccumulation, and chemical translators.