Skip Navigation LinksHome > About Contact UsContact us Page StatusPage status
Denver, Colorado Arches National Park, Utah Grand Teton National Park, Wyoming


Multiple federal and state agencies identified the need to more efficiently and expeditiously collect air quality data and conduct air quality modeling to assess the expanding number of oil and gas development on state or other lands. The participating agencies entered into an Memorandum of Understanding in 2011 to initiate a project to address this need. The initial name of the project was known as the Three State Air Quality Study (3SAQS), and is currently referred to as Intermountain West Data Warehouse - Western Air Quality Study (IWDW-WAQS).

The federal and state agency offices that are party to the MOUs, hereinafter referred to as the "Cooperators", include:
  • U.S. Environmental Protection Agency Region 8 Office (EPA);
  • Bureau of Land Management State Offices, Colorado, Wyoming and Utah and New Mexico (BLM);
  • U.S. Forest Service, Rocky Mountain Region, Intermountain Region, and Southwestern Region (FS);
  • National Park Service Intermountain Region (NPS);
  • Fish and Wildlife Service, Mountain-Prairie Region 6 (FWS);
  • Colorado Department of Public Health and Environment (CDPHE);
  • Wyoming Department of Environmental Quality (WDEQ);
  • Utah Department of Environmental Quality (UDEQ); and
  • New Mexico Environment Department (NMED).
The Western Air Quality Study, with assistance from WESTAR-WRAP, develops state-of-the-art air quality data and photochemical grid modeling products to support studies assessing the air quality in the intermountain west region, including:
  • National Environmental Protection Act (NEPA) modeling studies;
  • State Implementation Plan (SIP) modeling for ozone, particulate matter, and haze planning; and
  • Research studies that require comprehensive and up-to-date emissions inventories and air quality modeling platforms.

Cooperating Agencies

The Cooperators of the Study also develop and operate the Intermountain West Data Warehouse that contains documentation on the Study’s organization and air quality products, provides a portal to access all the air quality monitoring and model data, and offers a suite of visualization tools to explore model results and ambient monitoring data.

Modified: 9/24/2018 2:04:48 PM