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Sediment Guidance Workgroup

Update on the Sediment Guidance Workgroup's milestones, case studies, and current activities. Discussion of major issues and plans for revising the guidance. Overview of the federal component on suspended and bedded sediments.

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Sediment Guidance Workgroup

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  1. Sediment Guidance Workgroup Update January 26, 2004

  2. Workgroup Milestones • Workgroup Reconvened January 2003 Discussed history of guidance, previous workgroup issues. Questioned entities utilizing current guidance and discussed issues with conducting the 2-part test. • Sediment Case Studies Conducted Using Provisional Guidance (2) WQCD BLM Study, Box Canyon (2) USFS Fraser River, Upper South Platte • Case Studies Presented to the Workgroup List of major issues compiled.

  3. Workgroup Milestones Cont. • Water Quality Control Commission Update September 5, 2003 • Current Activities • Division is working on developing some options/revisions to the guidance to address the issues from the case studies. • Intensive Literature Review • Major issues being addressed through other workgroups, such as expected condition, Aquatic Life Workgroup, 309, etc.. • WQCD-BLM Phase II of Sediment Study

  4. Federal Component • SABS (Suspended and Bedded Sediments) Defined by EPA as particulate organic and inorganic matter that suspend in or are carried by the water, and/or accumulate in a loose, unconsolidated form on the bottom of natural water bodies. This includes commonly used terms of clean sediment, suspended sediment, total suspended solids, bedload, and turbidity.

  5. Federal Component Cont. • Clean sediment committee for the development of water quality criteria for SABS • Team of EPA professionals has been assembled to work on suspended and bedded sediment criteria. • Two documents: • Ecological and Toxicological Effects of Suspended and Bedded Sediments on Aquatic Habitats, A concise Review for Developing Water Quality Criteria for SABS • Developing Water Quality Criteria for Suspended and Bedded Sediments (SABS), A US EPA Science Advisory Board Consultation

  6. Federal Component Cont. • Office of Science and Technology • Strategy for Water Quality Standards and Criteria. Setting Priorities to Strengthen the Foundation for Protecting and Restoring the Nation’s Waters • Identifies the critical major program gaps. Nationally, sediment is one of the top three. • The strategy describes and sets milestones for the ten strategic actions of highest priority. Number three on the list is: Produce and implement a strategy for the development of SABS

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