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Lower Laguna Madre Water Quality

Lower Laguna Madre Water Quality. Tim Cawthon Nonpoint Source Program Texas Commission on Environmental Quality. Coordinated Monitoring. Coordinated Monitoring Schedule - https :// cms.lcra.org / Coordinated Monitoring Meetings held annually by each Clean Rivers Program Partner

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Lower Laguna Madre Water Quality

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  1. Lower Laguna Madre Water Quality Tim CawthonNonpoint Source ProgramTexas Commission on Environmental Quality

  2. Coordinated Monitoring • Coordinated Monitoring Schedule - https://cms.lcra.org/ • Coordinated Monitoring Meetings held annually by each Clean Rivers Program Partner • IBWC – Rio Grande River Basin • Nueces River Authority – Nueces-Rio Grande Coastal Basin • (Basin includes Brownsville Ship Channel, Lower Laguna Madre, Arroyo Colorado, and areas north)

  3. Basin Highlights and Summary Reports • Nueces River Authority - https://www.nueces-ra.org/CP/CRP/ • IBWC - https://www.ibwc.gov/CRP/Index.htm • Basin Summary – Every 5 Years • Basin Highlights – Annually

  4. Texas Surface Water Quality Standards

  5. Texas Surface Water Quality Standards • Proposed every 3 years • Standards consist of two parts: • Uses, or purposes • Presumed vs Designated • Criteria, or indicators to determine use attainment • Five general categories: • Aquatic life • Contact recreation • Public water supply • Fish consumption • General uses • http://www.tceq.state.tx.us/waterquality/standards

  6. Examples mg/L

  7. Laguna Madre Segment 2491 Split • Laguna Madre Segment 2491 is currently proposed to be split into the Upper and Lower segments in the 2014 update to the Texas Surface Water Quality Standards. • Hasn’t been officially approved by EPA yet Saltillo Flats

  8. TCEQ Assessment

  9. Texas Integrated Report • Assessment of water bodies every 2 years • 7 year rolling average of data • Identify impaired water bodies •  303 (d) List of Impaired Waters • Categories • 5a – TMDL, watershed action plan • 5b – Evaluate water quality standard • 5c – Additional data needed • https://www.tceq.texas.gov/waterquality/assessment

  10. Impaired Segments • TCEQ Integrated Report - https://www.tceq.texas.gov/waterquality/assessment/14twqi/14txir • “Index of Water Quality Impairments” is a comprehensive list of all impairments by Assessment Unit (AU).* Segment Assessment Unit 4a = TMDL *303(d) list isn’t a comprehensive list of impairments because segments with approved TMDLs are removed.

  11. SWQM Viewer • http://tceq.maps.arcgis.com/apps/webappviewer/index.html?id=b0ab6bac411a49189106064b70bbe778 • Monitoring stations (Includes Inactive Stations) • Segments (No Assessment Units)

  12. Stations Used • Water Bodies Evaluated Report - https://www.tceq.texas.gov/assets/public/waterquality/swqm/assess/14txir/2014_wbevaluated.pdf

  13. Assessment Results • Assessment by Basin - https://www.tceq.texas.gov/waterquality/assessment/14twqi/14basinlist

  14. 2014 Integrated Report Water Quality Assessment

  15. Laguna Madre (2491)* 2014 Integrated Report Water Quality Assessment Low Dissolved OxygenChlorophyll-a Low Dissolved Oxygen BacteriaAmmonia Nitrate Chlorophyll-a Low Dissolved Oxygen Port Isabel Fishing Harbor (2494A) Bacteria Brownsville Ship Channel (2494) Bacteria Low Dissolved Oxygen *Segment 2491 is currently proposed to be split into the Upper and Lower segments in the 2014 update to the Texas Surface Water Quality Standards. Lower Segment will be the bay south of the Saltillo Flats.

  16. 2201 (AU 05) 2202 (AUs 04 – 01) 2201 (AU 04) 2201 (AUs 03 – 01) Bacteria DDE, Mercury, and PCBs in edible Tissue Nitrate Chlorophyll-a Total Phosphorus Bacteria Low Dissolved Oxygen DDE, Mercury, and PCBs in edible Tissue Chlorophyll-a Nitrate Bacteria Low Dissolved Oxygen Chlorophyll-a Nitrate Bacteria Chlorophyll-a Nitrate

  17. Downloading and Viewing Data

  18. Water Quality Data Sources • SWQMIS Public Viewer - https://www80.tceq.texas.gov/SwqmisPublic/public/default.htm • STORET– https://www.waterqualitydata.us/portal/ • USGS WQ - https://waterwatch.usgs.gov/wqwatch/map?state=tx&pcode=00010 • Stream Team - https://aqua.meadowscenter.txstate.edu/basins.aspx • Beach Watch - https://cgis.glo.texas.gov/Beachwatch/ • CWQM Stations - https://www.tceq.texas.gov/waterquality/monitoring/cwqmn-data-links

  19. SWQMIS Public Viewer • https://www80.tceq.texas.gov/SwqmisPublic/public/default.htm • Download the Pipe delimited file 1 2

  20. CRP Data Tool • https://www80.tceq.texas.gov/SwqmisWeb/public/crpweb.faces 1 2 3 x 4 5 6 7

  21. Opening Pipe Delimited file in Excel • Open Microsoft Excel. • Select the Data tab. • Click From Text. • Browse to the text file and select it. • Click Import. The Text Import Wizard will begin. • Select Delimited and click Next. • Uncheck Tab and select Other. • Enter in pipe symbol | . Hold shift key and press button above Enter key. • Click Next. Click Finish. Click Ok • Data can now be viewed in Excel

  22. Questions?

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