API 4751 : 2005

Table of Contents

Executive Summary
1 Introduction
2 Analytical Methods
  2.1 Methods for Evaluating Total Mercury in Fish Tissue and
      Water
      2.1.1 Method 1631
      2.1.2 Method 7471B/SW-846
  2.2 Methods for Evaluating Methylmercury in Fish Tissue and
      Water
      2.2.1 Method 1630
      2.2.2 UW-Madison SOP
      2.2.3 USGS Method
  2.3 Clean Hands Sampling
  2.4 Considerations in the Selection of an Analytical Method
3 Translators Issues
  3.1 Overview of Translations Within and Between Media
  3.2 EPA Proposed Translation Methods
      3.2.1 Bioaccumulation Models for Mercury
      3.2.2 National Default Translators
  3.3 Site-Specific Translators
4 Use of Translators in TMDL and Permit Limit Calculations
  4.1 Introduction to WQBELs and TMDLs
  4.2 Listing Issues that Trigger TMDLs
  4.3 Evaluation and Comparison of Mercury TMDL Targets
  4.4 Allocation Approaches
  4.5 Implementation Approaches
      4.5.1 Reasonable Potential
      4.5.2 NPDES Implementation Procedures
      4.5.3 Development of WQBELs
      4.5.4 Other Options for Implementation
5 Applicability to Other Metals
6 Summary and Recommendations
7 References
Appendix A Bibliography of Selected Recent Studies Available to
           Update Default Translators for Mercury
Appendix B Example Mercury TMDLs
Figures
Tables

Abstract

Presents an overview and discussion of the use of the ambient water quality criterion for methylmercury developed by the U.S. Environmental Protection Agency (EPA) in 2001 (66 FR 1344).

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN