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Four Corners Air Quality Task Force. September 13, 2007 Erik Aaboe & Mark Jones NMED/Air Quality Bureau. Oil & Gas Wells in Four Corners (as of 2003). Four Corners Air Quality Challenges. Existing and proposed coal-fired power plants Multiple jurisdictions 19,000 existing oil and gas wells

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slide1

Four Corners Air Quality Task Force

September 13, 2007

Erik Aaboe & Mark Jones

NMED/Air Quality Bureau

four corners air quality challenges
Four Corners Air Quality Challenges
  • Existing and proposed coal-fired power plants
  • Multiple jurisdictions
  • 19,000 existing oil and gas wells
  • 12,000 additional projected for next 20 years
  • Many small unregulated sources
  • Multiple operators
  • Changing field conditions
4 corners air quality task force 4caqtf origins
4-Corners Air Quality Task Force (4CAQTF) Origins
  • December, 2004 meeting in Denver – EPA Region VIII, BLM, CDPHE, NMED – regarding Northern San Juan Basin Cumulative Impact Analysis
  • NMED just finishing San Juan County Early Action Ozone Task Force
  • Decided to re-focus Ozone Task Force and broaden scope
  • Planned 4CAQTF during 2005 with above plus USFS, NPS, EPA Region VI, tribes
  • MOU signed Fall 2005
4caqtf
4CAQTF
  • Broadly representative volunteer group of stakeholders formed to look at air quality issues in the Four Corners region
  • ~100 task force members, ~150 interested parties
  • Purpose
    • Bring together diverse group of interested parties to learn about and discuss air quality issues
    • Develop a broad list of mitigation options for improving air quality that will aid regulatory agencies in developing plans
  • Goals
    • Address planned development
    • Reduce nitrogen, sulfur & mercury deposition
    • Enhance visibility in Class I areas and the region
4caqtf1
4CAQTF
  • Process
    • Work Groups: Power Plants, Oil and Gas, Other Sources, Monitoring, Cumulative Effects
    • Develop mitigation options
    • Quarterly meetings with Work Group conference calls to review options and accomplish work (50-100 per)
    • Final report is on schedule to be completed by November 2007
4caqtf2
4CAQTF
  • Progress / What Have We Done
    • 4CAQTF in final stages
    • 125 mitigation options drafted (not consensus, instead some with differing views)
    • Cumulative Effects (including emission inventory) & Monitoring Sections
    • Draft Task Force Report Available at http://www.nmenv.state.nm.us/aqb/4C/DraftTaskForceReport.html
oil gas group focus in the 4caqtf project
Oil & Gas Group focus in the 4CAQTF project
  • Largest Work Group (approx. 25 participants per meeting)
  • Active involvement from major producers in region Williams, BP, Conoco Phillips, Energen, Xcel, Devon
  • Drafted over 50 mitigation options
  • The draft task force report is a compilation of mitigation options drafted by members of the Four Corners Air Quality Task Force. The agencies involved have not reviewed or adopted these options at this time. These options will be considered following the completion of the Task Force in December 2007.
2002 o 3 precursor o g area source ei for san juan rio arriba county nm completed in 2006
2002 O3 Precursor O&G Area Source EI For San Juan & Rio Arriba County, NM (completed in 2006)
background innovative strategies
Background: Innovative Strategies
  • New Mexico San Juan VISTAS (Voluntary Innovative Strategies for Today’s Air Standards)
  • Four Corners Air Quality Task Force
  • Colorado Regulation 7
  • BLM Well Development Condition of Approval (“COA”)
slide13

What is San Juan VISTAS?Voluntary Innovative Strategies for Today’s Air Standards

  • San Juan VISTAS is a voluntary emission control program administered by the New Mexico Environment Department (NMED) for the improvement of air quality.
  • HISTORY
  • began in 2005 as a result of EAC work
  • • modeled after EPA Gas STAR program
4 corners air quality task force source categories
4 Corners Air Quality Task Force Source Categories
  • Engines: The work group addressed engines as a separate category in its analysis attributable to all processes in the oil and gas industry. The mitigation strategies were created to address the subcategories of stationary or mobile/non-road engines, drill rig engines, and turbines. [31 mitigation options developed]
4 corners air quality task force source categories1
4 Corners Air Quality Task Force Source Categories
  • Exploration & Production (E & P): the work group defined E & P as the upstream sector of the oil and gas industry, including all activities associated with drilling, completion, and putting the well on-line. The work group identified and developed mitigation strategies for specific equipment in E&P, including oil/condensate tanks, dehydrators/separators/heaters, fugitive emissions associated with pneumatic operations, completions, and wellhead considerations. [21 options]
4 corners air quality task force source categories2
4 Corners Air Quality Task Force Source Categories
  • Midstream: the work group defined Midstream Operations as occurring after custody transfer, including facilities such as compressor stations, gas processing plants, and transmission or storage of natural gas. Where appropriate, the work group devised mitigation strategies that avoided general overlap with E & P options, and concentrated primarily on options unique to the “midstream operations” that were not otherwise examined in the context of E&P operations [2 options]
  • Overarching: 8 options
4caqtf oil and gas interim emissions recommendations
4CAQTF Oil and Gas Interim Emissions Recommendations
  • A 2 g/hp-hr NOx limit is achievable and reasonable for all engines less than 300 hp (excluding very small engines with horsepower less than 40).
  • An ambient monitoring program for ammonia should be initiated in the Four Corners region.
  • A 1 g/hp-hr NOx limit is reasonable and achievable for engines greater than 300 hp.
  • Drill rig NOx emissions are significant cumulatively in the region on a year-round basis and should be reduced by a requirement to comply with Tier 2 standards as expediently as possible.
oil gas workgroup issues
Oil & Gas Workgroup Issues
  • Quantity and proximity of sources.
  • Multi well and pipeline ownership.
  • Twinning (two engines on same surface site going to two different pipelines).
  • RICE emission control technologies to achieve 2.0 g/bhp-hr (<300 HP) & 1.0 g/bhp-hr (>300 HP) NOx emissions.
  • Implementing mitigation options (regulatory or voluntarily).
rice mitigation options
RICE Mitigation Options
  • Replace existing RICE with new RICE.
  • Utilize electric compressors.
  • Compressor optimization & centralization.
  • Meet SI EPA NSPS.
  • Adhere to Manufacturer’s O/M recommendations.
rice mitigation technology options
RICE Mitigation Technology Options
  • 3-way catalyst w/AFR for rich burn engine.
  • Install lean burn engines.
  • Oxidation catalysts to control HC’s, Formaldehyde & CO emissions from Lean burn engines.
  • SCR for NOx control on lean burn engines.
colorado regulation 7 revisions adopted 12 06
Colorado Regulation 7 Revisions Adopted 12/06
  • > 63% Control of VOC “flash emissions”
  • > 90% Control of dehydrator VOC emissions commencing 05/01/08
  • Commencing 07/01/07 - 2, 4 &1 g/bhp-hr (NOx, CO & VOC’s) for natural gas fired RICE > 500 HP
  • 2011 limits 1, 2 & 0.7 g/bhp-hr for RICE >100 HP.
farmington field office blm coa to drill
Farmington Field Office - BLM (“COA”) To Drill
  • 300 HP or less RICE emit 2.0 g/bhp-hr NOx.
  • 300 HP or larger RICE emit 1.5 g/bhp-hr NOx.
  • Federal Land Policy and Management Act of 1976 provides BLM authority.
  • Compliance will mitigate incremental adverse impacts at surrounding Class I areas
nsr permitting implications
NSR Permitting Implications
  • Regional planning efforts will shape permit requirements.
  • Transition from an effects to technology based permitting approach.
  • Transition away from case-by-case permitting of minor sources.
  • Minor source aggregation could continue to be an issue.
challenges and successes
Challenges and Successes
  • Multi-jurisdictions EPA, Federal Land Managers, Indian Tribes, States
    • 4CAQTF has offered an opportunity to discuss regional issues and perhaps a seed for a regional policy group to make some concerted decisions
    • Policy Oversight group made up of NMED, CDPHE, EPA, NPS, FS, BLM, Tribes (continue to work together)
  • Navajo Nation EPA & Southern Ute Tribes
    • Made some headway in improving relations and coordination with Tribal environmental programs in 4 Corners area
  • Education
    • Educating the public and local agencies through presentations and informed discussions
  • Associated Work:
    • Ammonia monitoring, emissions inventory and modeling projects
recent events in summer 2007
Recent Events in Summer 2007
  • Public Review of Document in June & July
  • August 8th 2007 Task Force Meeting in Durango, CO was our last working meeting
    • Attended by approx 70 stakeholders
  • Formation of ORT, and beginning of work
  • Final Task Force Report will be posted on our website by this October
  • Final stakeholder meeting will be held November 7th
slide26

Questions?

Erik Aaboe

NMED/AQB

(505) 955-8081

erik.aaboe@state.nm.us

Mark Jones

NMED/AQB

(505) 327-6854

mark.jones@state.nm.us