Surface Water Quality Assessment Advisory Work Group
Meeting notices, handouts, agendas, and attendees.
About the Advisory Group
This group advises TCEQ on revisions to the Guidance for Assessing and Reporting Surface Water Quality. The Guidance is used to evaluate data and information for development of the Texas Integrated Report of Surface Water Quality for Clean Water Act Sections 305(b) and 303(d).
Meeting Summaries and Handouts
Meeting documents are available in 
unless otherwise noted.
2022 Assessment Guidance
November 17, 2020
- Agenda
- Summary of Changes to Spatial Information
- Data Exclusions Due to Extreme High Flow – Overview of Current Practice and Discuss Potential Options for the 2022 IR
- Presentation
- Handout - Bankfull Discharge Handout
- Handout - Flow Frequency Distributions Handout
- Handout - Flow Frequency Slope Handout
- Texas Beach Watch Data and Assessment Methodology
- Comments
- Guidance
2020 Assessment Guidance
May 20, 2019
- Agenda
- Implementation of Coastal Recreational Use Criteria
- Update on the regionalization of the Index of Biotic Integrity for Benthic Macroinvertebrates
- Application of Regionalized Benthic Indices of Biotic Integrity (IBI) in the Integrated Report
- Comments
2018 Assessment Guidance
August 24, 2018
- Agenda
- 2016 Assessment Summary/2018 Goals and Process
- Update on Reservoir Nutrient Assessment Methods
- Addressing Drought and Use Attainment
- Considering High Flow in Assessments
- Comments
2016 Assessment Guidance
July 27, 2015
- Agenda
- 2014 Assessment Summary / 2016 Goals and Process
- Water Quality Standards Update
- Clean Water Act 303(d) Program Vision
- Nutrient Assessment
- Presentation
- Handout
- Draft Reservoir Thresholds and Criteria for Chlorophyll, Total Phosphorus, and Secchi
- Drought Assessment
- Biological Assessment
- Changes resulting from WQS Approvals
- Comments