Documents from SWQSAWG Meetings

• 2013 Standards Revision
• 2013 Meeting Agendas, Summaries, and Handouts
• 2010 Standards Revision
• Proposed Changes to Table 1 in the TSWQS, 307.6
• 2010 Meeting Agendas, Summaries, and Handouts
• List of Meeting Documents by Date

2013 Standards Revision

On June 24, 2011, the Commission published notice in the Texas Register requesting preliminary written comments on the Texas Surface Water Quality Standards (Title 30, Chapter 307 of the Texas Administrative Code). This request was made in preparation for the next triennial review of the Texas Surface Water Quality Standards. Meeting records from all workgroup sessions regarding the 2013 revision are provided below.

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Agendas, Summaries, and Handouts

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2010 Standards Revision

On June 30, 2010, the Commission adopted revisions to the Standards and approved updated implementation procedures. See additional information regarding the revised 2010 Standards and implementation procedures.

On July 28, 2010, the Commission considered the following item related to the contact recreation uses and criteria:

• Options for Streamlining RUAA Procedures

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Proposed Changes to Table 1 in the TSWQS, 307.6

The table entitled, “Proposed Changes to Table 1 in the TSWQS, 307.6,” lists the changes to the 2000 Standards version “Table 1, Criteria in Water for Specific Toxic Material Aquatic Life Protection.” The Proposed Changes table was created to address comments from the January 6, 2009, Work Group meeting. It provides information about why criteria changed for some substances and why some substances were added.

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Agendas, Summaries, and Handouts

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List of Meeting Documents by Date

The documents below are in PDF unless otherwise indicated.

May 25, 2012 Meeting

• Attendee List
• Draft Nutrient Criteria Development Plan
• Table 2 – Human Health Protection
• Table 2 Calculation Spreadsheet (Excel)
• Site Specific Standards Revisions
• Draft pH Evaluation for Implementation Procedures
• pH Example A
• pH Example B
• EPA Comments on pH
• RUAA Draft Recommendations
• Instructions to submit comments
• Draft Recommendations - Public Comment Period Ends 6/25/12
• Brazos River Above Possum Kingdom (1208)
• Navasota River Below Lake Limestone (1209)
• Navasota River Above Lake Mexia (1210A)
• East Yegua Creek (1212B)
• Brushy Creek (1244)
• Bullhead Bayou and Unnamed tributary of Bullhead Bayou (1245C) and (1245D)
• Lower Cibolo Creek (1902)

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March 28, 2012 Meeting

• Attendee List
• Summary of EPA Action on the 2010 Surface Water Quality Standards
• Status of Mercury Human Health Criteria
• EPA’s Compilation of State Adopted Mercury Criteria
• Future Revisions to Fish Tissue-Based Criteria in the 2013 Texas Water Quality Standards (TSWQS)
• Florida Numeric Nutrient Criteria 2012 Update
• Recent National Guidance and Policy Documents
• Selected Nutrient Projects and Related Projects in Texas
• Nutrient Criteria Development Plan
• Discussion Topics - Updating the Nutrient Criteria Development Plan
• RUAAs Under Evaluation
• Site Specific Standards Revisions Under Evaluation
• Nutrient Followup
  • 2013 Triennial Nutrient Criteria Recommendations
  • TCEQ Response to Nutrient Plan Update Request
  • EPA Letter Requesting Update to Nutrient Plans
  • TCEQ Response to Stoner Memo
  • EPA Letter Requesting Response to Stoner Memo
  • Working in Partnership with States to Address Phosphorus and Nitrogen Pollution through Use of a Framework for State Nutrient Reductions, Nancy Stoner Memo

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April 27, 2009 Meeting

• Attendee List
• Appendix F: Proposed Site-specific Nutrient Criteria for Selected Reservoirs
• Alternative Calculation of Chlorophyll a to Total Phosphorus Ratio
• Draft Nutrient Screening — Proposed
• Evaluation of Nutrient Criteria Development Using Only Recent Data
• Seven Years Data for Beta Testing of Assessment: Chlorophyll a and Total Phosphorus
• Status of Proposed Nutrient Criteria

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January 6, 2009 Meeting

• Attendee List
• Surface Water Quality Standards TAC 307
• Table 1 – Aquatic Life Protection
• Table 2 – Human Health Protection
• Table 3 – Aquatic Life Subcategories
• Table 4 – Critical Flow Values
• Overview of Proposed Standards Revisions 01/06/09
• Proposed Changes to Classified Water Bodies 01/06/09
• Draft Revisions to Recreation Criteria 01/06/09
• Final TCEQ Mercury Letter
• EPA Mercury Response Letter
• Appendix A18 (Excel)
• Appendix A – Site-specific Uses and Criteria for Classified Segments – Introduction
• Appendix B – Sole-source Surface Drinking Water Supplies
• Appendix C – Segment Descriptions
• Appendix D – Site-specific Uses and Criteria for Unclassified Water Bodies
• Appendix E – Site-specific Toxic Criteria
• Appendix F – Site-Specific Nutrient Criteria for Selected Reservoirs
• Draft Recreational UAA Procedures
• Abbreviated Nutrient Criteria Calculations
• Summary of Draft Appendix A Changes

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January 07, 2009 Meeting

• Attendee List
• Procedures to Implement the Surface Water Quality Standards - DRAFT
• Summary of Significant Potential Changes to the Implementation Procedures (excluding WET) November 20, 2008
• Summary of Significant Potential Changes to the Implementation Procedures for Whole Effluent Toxicity January 7, 2009

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May 5, 2008 Meeting

• Chapter 307 Draft Rule Language
• Table 1 in 307.6 – Aquatic life toxic criteria (Excel)
• Table 2 in 307.6 – Human Health toxic criteria (Excel)
• Appendix E – Site-Specific Criteria
• Appendix F – Nutrient Criteira
• Whole Effluent Toxicity (WET) Testing in the IPs
• Table 3 – Aquatic Life Use Subcategories (Excel)
• Table 4 – Critical Low Flow Values for DO in East Texas
• Segments with Seagrass Uses
• EPA Letter - Analytical Methods for Mercury in National Pollutant Discharge Elimination System (NPDES) Permits
• EPA Letter – Region 6 Minimum Quantification Level Guidance
• Minimum Analytical Levels and Suggested Methods for Permit Application Screening
• Analytical Methods for the Determination of Pollutants Regulated by Section 307.6 of Standards
• Water Quality Standards for Recreation: Options for Revision
• Whole Effluent Toxicity Basics - Current TCEQ Policy for May 5, 2008
• Whole Effluent Toxicity Testing: Revisions to Consider Standards Implementation Procedures for May 5, 2008
• IP Springfed Streams (Excel)

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September 6, 2007 Meeting

• Discussion Topics for 307.8: Standards Applicability (MS Word)
• Discussion Topics for 307.9: Standards Attainment (MS Word)
• Endangered Species Background Information (MS Word)
• Background On The Development Of Water Quality Criteria For Nutrients (MS Word)
• Development of Nutrient Criteria in the Texas Surface Water Quality Standards (Criteria Formula) (PDF)
• Current Language Associated with Nutrients in the Standards and in Assessment Documents (MS Word)
• Nutrients Data Base Development and Data Treatment (MS Word)
• Nutrient Criteria for Reservoirs (Overview) (MS Word)
• 5 Year Assessment (MS Word)
• Reservoir Trends and Exceedances (MS Word)
• Assessment of Chlorophyll a for 0-10% Land Use Reservoirs (Excel)
• Assessment of Chlorophyll a for 10-20% Land Use Reservoirs (Excel)
• Assessment of Chlorophyll a for 20+% Land Use Reservoirs (Excel)
• Questions on Nutrient Criteria for Reservoirs (MS Word)
• Nutrient Criteria Development in Texas (PowerPoint)
• Potential Changes to Sections 307.8 and 307.9: Standards Applicability and Attainment (PowerPoint)

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June 26, 2007 Meeting

• Whole Efficient Toxicity (WET) Basics – Current TCEQ Policy (MS Word)
• WET EPA Permitting Strategy – Brief (MS Word)
• WET – Discussion Topics (MS Word)
• March 2005 TCEQ Letter
• March 2006 EPA Letter
• April 2006 TCEQ Letter
• April 2007 James Hanlon Memo to Miguel Flores
• May 2007 EPA Letter
• Questions for Small Breakout Group Discussions (MS Word)
• Notes on Revisions to Site-specific Standards (MS Word)
• Review of Site-specific Standards (Excel)
• Notes for Appendix D (MS Word)
• Appendix D Entries (Excel)
• Whole Efficient Toxicity (WET) Testing (PowerPoint)
• Water Body Candidates (MS Word)
• Bacteria Data Summary (MS Word)
• Links to EPA documents for Whole Effluent Testing (WET) (MS Word)

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May 16, 2007 Meeting

• Changes to §307.8-Application of Standards and §307.9-Determination of Standards Attainment (PowerPoint)
• Chapter 307.7 Recreational Uses and Criteria (PowerPoint)
• Revising Water Quality Standards for Water-Based Recreation (PowerPoint)
• Chlorophyll a, Total Phosphorus, Total Nitrogen
• Chlorophyll a Criteria (Excel)
• Recreational Uses and Criteria: Options under Evaluation
• EPA Recreational Criteria Tables (Excel)
• Options to Consider for Recreational Uses and Criteria
• Discussion Topics for 307.9: Standards Attainment
• Discussion Topics for 307.8: Standards Applicability

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March 7, 2007 Meeting

• 2000 Standards Overview of EPA Approval and an Overview of the Next Standards Revision (PowerPoint)
• House Bill 3023: Special Designations
• Draft Sole-Source Surface Drinking Water Supplies
• Draft Nutrient Criteria Chlorophyll a, Total Phosphorus, Total Nitrogen
• Development of Nutrient Criteria in the Texas Surface Water Quality Standards
• Draft Chlorophyll a Criteria Reservoirs Least Impacted
  • 10–15% Land Use
  • 16–20% Land Use
  • More Than 21% Land Use
• Draft Total Phosphorus Criteria
• Draft Total Nitrogen Criteria
• Potential Changes to 30 TAC Section 307.6
• EPA Requested Additions to Table 3
• Comparison of Existing Table 3 Values to Newly Calculated Human Health Criteria
• Table 1 – Draft Aquatic Life Criteria (Excel)
• 2006 Proposed Table 3 Compared to NRWQC Criteria in Water for Specific Toxic Materials Human Health Protection
• Methylmercury Human Health Criteria
• Surface Water Quality Standards Web Links
• Summary of Preliminary Comments for Texas Surface Water Quality Standards
• Reservoir Nutrient Criteria – Texas Parks and Wildlife Department

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