Agencies | Governor
Virginia Regulatory Town Hall
Department of Environmental Quality
GDForum ID: 102
Description of Proposed Guidance Document Changes
The Virginia Department of Environmental Quality (DEQ) has released the Final 2020 Water Quality Assessment Guidance Manual. Virginia’s 2020 Water Quality Assessment Guidance Manual contains the assessment procedures and methods to be used for the development of Virginia’s 2020 §305(b)/ §303(d) Integrated (i.e. combined Water Quality Assessment and Impaired Waters) Report. The assessment guidance seeks to address all key elements of the U.S. Environmental Protection Agency’s (EPA) 2006 Assessment Guidance and subsequent updates through April 2019. In addition, the assessment guidance includes the assessment methodology for the Chesapeake Bay Water Quality Standards established by EPA and adopted by Virginia (Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity, and Chlorophyll a for the Chesapeake Bay and Its Tidal Tributaries). Modifications have been made to the guidance document since 2018. A complete list of significant guidance modifications are described in Part II of the manual. Section 62.1-44.19:5 C of the Code of Virginia requires DEQ to develop and publish the procedures used for defining and determining impaired waters and provide for public comment on the procedures. A draft version of this guidance was released for 30-day public review and comment on May 28, 2019. DEQ’s response to comments received will be available for download on the DEQ Water Quality Assessment webpage at: (please copy and paste to your browser).
Guidance Document(s) for this Comment Forum
Document ID Document Title Document in Effect Proposed Document
GM19-2001 2020 Water Quality Assessment Guidance Manual n/a pdf Proposed Document Updated on 9/9/2019
Contact Information
Amanda Shaver
Department of Environmental Quality
P.O. Box 1105
The Virginia Register

Publication Date: 8/5/2019    Volume: 35  Issue: 25
The public comment period began upon publication and extended for 30 days. It ended on 9/4/2019.
There were no comments

Effective Date:  9/5/2019 
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