30 tac chapter 307 texas surface water quality standards workgroup meeting
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30 TAC Chapter 307 Texas Surface Water Quality Standards Workgroup meeting. March 7, 2007. 2000 Standards EPA Decisions. Disapproved Sam Rayburn – DO Selenium WER Dixon Creek Caney Creek, Linville Bayou No Action Surface waters in the state Fecal coliform for effluent limits

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30 tac chapter 307 texas surface water quality standards workgroup meeting

30 TAC Chapter 307Texas Surface Water Quality StandardsWorkgroup meeting

March 7, 2007

2000 standards epa decisions
2000 Standards EPA Decisions
  • Disapproved
    • Sam Rayburn – DO
    • Selenium WER
      • Dixon Creek
      • Caney Creek, Linville Bayou
  • No Action
    • Surface waters in the state
    • Fecal coliform for effluent limits
    • Bacteria criteria for Red River
    • Appendix B
2000 standards epa approved
Appendix D

Appendix C

segment boundaries

App E

Cu, Zn, Al WERs

Saltwater Aq criteria – Table 1

Human Health criteria – Table 3

307.6 toxic materials

307.3 definitions

Implement WERs in permits once EPA approves

Nueces River Tidal DO

Appendix A

New segments

Aquifer protection

Dissolved minerals

pH changes

E. coli & Enterococcus

2000 StandardsEPA Approved
2000 standards under epa review
2000 standardsUnder EPA Review
  • Freshwater aquatic toxic criteria
  • 307.4 General Criteria – text
  • 307.7 Table 5 – app to Classified waters
    • Wetland functions & seagrass use
  • 307.8 – Application of Standards
  • 307.9 – Determination of Standards Attainment
  • 307.10 – temp in Comal River
next standards
Next Standards
  • Management approval to begin rule process
  • Working internally, team and agency
  • e-comments
  • List server
workgroups
Workgroups
  • Today
    • Nutrient criteria for reservoirs
    • Toxic criteria
  • Next group
    • Bacteria
    • 307.9 – Determination of Standards Attainment
what we are working on
What we are working on
  • Whole-effluent toxicity (WET)
  • Sole Source Drinking Water
  • Definitions
  • Seagrass use
  • Segment boundaries – ex. Caddo
  • Site-specific changes on segments
    • Salado Creek
    • Caney Creek
    • Clear Fork Trinity River
    • West Fork Trinity River
    • Little Wichita
    • Black Bayou
    • Dixon Creek
    • Slaughter Creek
slide8
Appendix D - ~95 streams
  • Appendix E – 15 water bodies – WER
  • EPA recommendation – chlorine removal
  • Bacteria
    • Evaluate existing recreational standards & assessment procedures
    • Broader range of uses
timeline
Timeline
  • Draft timeline
    • Management approval Dec 2006
    • 1st stakeholder meeting Mar 2007
    • Final rule to rule team Jan 2008
    • Proposed Agenda Mar 2008
    • Adoption by Commission Sept 2008
ad