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Air Quality Challenges In South Central Texas. Issues and Demand to Infrastructure in the Eagle Ford Region Eagle Ford Consortium Peter Bella, Natural Resources Director Alamo Area Council of Governments April 22, 2014. The Alamo Area Council of Governments

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Air Quality Challenges In

South Central Texas

Issues and Demand to Infrastructure in the Eagle Ford Region

Eagle Ford Consortium

Peter Bella, Natural Resources Director

Alamo Area Council of Governments

April 22, 2014


The Alamo Area Council of Governments

  • AACOG provides direct services & planning supporting communities and local governments in a 13 county area of south central Texas
  • Air Improvement Resources (AIR) Committee
  • – AACOG provides staff and air quality planning technical support for policy decisions by elected officials in the AACOG region

Regional Data Center


EPA Proposed NA Boundary: Metropolitan Statistical Area

  • Atascosa, Bandera, Bexar, Comal, Guadalupe, Kendall, Medina, and Wilson Counties
  • Mandatory control strategies to reduce ozone are implemented within the region contained in the final nonattainment (“NA”) boundary

Regional Data Center


Ozone Compliance - 2014

2008 8-hr. av. O3 National Ambient Air Quality Standard:

To attain this standard, the 3-year average of the fourth-highest daily maximum

8-hour average ozone concentrations measured at each monitor within an area over

each year must not exceed 75 ppb (parts per billion).

* As of April 22, 2014, TCEQ

The 3-year average described above is the single critical measure of compliance.

Ozone Season: April 1 – October 31. Calendar year data required for compliance.



Most Current (1/29/2014) Timeline

Will there be a New Ozone Standard?

  • July 2014: Review Process of 2008 Ozone Standard Ends
  • January 2015: Proposed Rulemaking for Revised Ozone Standard
  • September 2015: Final Rulemaking published
  • September 2016: Nonattainment Designation Recommendations from Governors due to EPA; based on local monitoring data
  • May 2017: EPA Proposes Nonattainment Designations No Later Than This Date (120 day letters)
  • September 2017: EPA Nonattainment Designations Final

Implies that 2014-2016 will be the

years of record for ozone compliance

population vs voc and no x emissions trends san antonio new braunfels msa


Population vs. VOC and NOX Emissions Trends San Antonio-New Braunfels MSA

“NOx Limited” => to reduce ozone, we need to reduce NOx



The Houston urban plume was observed through 163 miles of transport.

Image courtesy of the Capital

Area Council of Governments

c23 back trajectories on days with 8 hour ozone 75 ppb and the location of eagle ford 2008 2011
C23 Back Trajectories on Days with 8-Hour Ozone > 75 ppb and the Location of Eagle Ford, 2008-2011

NOAA, Feb. 26, 2010. “Realtime Environmental Applications and Display sYstem (READY)”.

Available online: Accessed 01/12/12.


San Antonio-New Braunfels Metropolitan Statistical Area

Outlined in brown border


Eagle Ford Emissions Inventory Group


Marathon, Pioneer,

Chesapeake, Holt CAT,

Texas A&M / Institute of

Renewable Natural

Resources, Alpha Terra,

Energy Transfer, South

Texas Energy & Economic

Roundtable (STEER),

Shell Exp. & Prod.,

EOG, Anadarko,

TxOGA, Plains


Air Improvement Resources

(AIR) Committee

AIR Executive


AIR Technical


AIR Advisory


Oversight of Process

Final Agreement &


Work with EPA, TCEQ

Technical considerations

of relative reductions in

ozone precursors, impacts

Business and Industry


Of Cost, Feasibility

Dialogue with

All Stakeholders

Receive Public Comments

Modeling: 2006 base case

Default TCEQ files

AACOG local EI updates

Next: 2012, 2018 forecasts

Eagle Ford EI late summer

Impacts assessments

Regional Considerations

Working Topics

Eagle Ford Improvements

Power Generation

Cement Industry


Construction Industry

Air Improvement Resources (AIR) Executive Committee

Next Meeting: 8:30 AM, April 23, 2014: AACOG, 8700 Tesoro Dr., 78217


Strategic Plan Approved by AIR Exec.

  • Develop Strategic Plan
    • Identify Measurable Goals &
    • Appropriate Mix of Control Strategies to Reduce Ozone in the Region
  • Determine Regional Reductions Required
  • Identification and Analysis of Control Strategies
  • Develop a Cost-Benefit Analysis
  • Continue Public Education / Public Outreach
  • Implement Ozone Advance Public Survey

Message in 2013: Available Resources May Limit Scope

AACOG will seek partners in effort

Strategic Plan: introduced Oct. 23, 2013, approved Jan. 22, 2014


Local Regulatory Ozone Monitors

Camp Bullis C58

SA Northwest C23

(Marshall High)

Calaveras Lake C59


Ozone Precursor Totals, 2012 & 2018, SA-NB MSA

221 Tons Per Day

VOC, 2012

205 Tons Per Day

VOC, 2018

186 Tons Per Day

NOx, 2012

142 Tons Per Day

NOx, 2018

Does Not


Eagle Ford


Point sources: power generation, cement, manufacturing