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WAQS Structure / IWDW Structure

The Intermountain West Data Warehouse - Western Air Quality Study (IWDW-WAQS) consists of four primary committees and numerous sub-committees. The IWDW-WAQS also receives support from the Western States Air Resources Council – Western Regional Air Partnership (WESTAR-WRAP). One of the Cooperating Agencies is also assigned as the Project Lead. The Project Lead rotates between the states and federal Cooperators every two years. The primary committees, roles, and coordination efforts are outlined below.

The following outlines the IWDW structure and available documentation, data, and tools.
  1. Governing Board
    • Provides overall oversight and advice in the long-term, on-going operations of the IWDW and the associated regional modeling activities through the WAQS.
    • Approves work plans and work plan changes.
    • Responsible for review and approval of recommendations from Oversight Committee.
    • Meet annually or more frequently as necessary.
  2. Oversight Committee
    • Provides day-to-day oversight to the Project Lead Agency concerning IWDW-WAQS activities.
    • Communicates or elevates appropriate issues to the Governing Board.
    • Facilitates the creation of sub-workgroups on an ad hoc basis to address technical and operational questions.
    • Meet bi-annually or more frequently as needed.
  3. Technical Committee
    • Supports the Oversight Committee and is the main point of contact for the CIRA staff operating the IWDW and contractors conducting the WAQS air quality modeling and analyses.
    • Provides technical assistance and recommendations on the operations and work products to ensure that work products meet the needs of the Cooperators.
    • Meets after completion of major task or on an as-needed basis.
    • Participants include Cooperators, as well as other research and air quality groups (e.g., RAQC, CSU)
  4. Data Stewards Committee
    • Supports the Oversight Committee and is the main point of contact for the CIRA staff operating the IWDW and the contractors conducting the WAQS air quality modeling and analyses.
    • Act as technical liaisons for individual projects and data requests, tracks the results from the modeling studies applying IWDW data, and facilitates the return of modeling data resulting from the application.
    • Meets monthly to review and discuss data requests.
    • Participants include at least one representative from each Cooperating Agency.
  5. Project Lead Agency
    • Facilitates communications between the Cooperators about key issues, and provides the opportunity for the Cooperators to participate in the Project activities.
    • Tracks all communications and project developments, and coordinates, convenes, and facilitates meetings of the Governing Board, Oversight Committee, and other committees and workgroups.
  6. WESTAR-WRAP Coordination
    • Coordinates project activities with the Project Lead Agency and Cooperators.
    • Coordinates and manages work and activities with sub-contractors and IWDW users, and reports activities across the IWDW-WAQS to Cooperators, Oversight Committee, and external user community.
    • Provides point of contact outreach to potential outside funding groups and provides status reports.


The U.S. EPA’s role as a Cooperator is limited to providing technical assistance and advice with respect to operation, maintenance, data quality, updates to emissions and air quality modeling datasets and other technical and operational matters, as appropriate. Due to various applicable authorities, the U.S. EPA will not solicit or accept gifts of funds in connection with this project and, thus, will not participate in fundraising activities or fiscal management related to this Project.
Modified: 9/24/2018 2:04:49 PM