The "Ambient Air Pollution and Meteorological Monitoring Guidance" document explains procedures for private companies and other governmental agencies monitoring air quality and meteorology voluntarily, or to meet requirements of the Colorado Air Pollution Control Division (APCD). The document discusses how to prepare an ambient air and meteorological monitoring plan for division approval. It discusses content, format, and submittal of the plan. It...

On March 31 and April 9, 1999 and again on April 18 and December 17, 2000, the monitor located in Alamosa, Colorado recorded exceedances of the 24-hour National Ambient Air Quality Standard (NAAQS) for PM10 (particulate matter having a nominal aerodynamic diameter equal to or less than 10 microns).1 Each of these exceedances was associated with high winds and blowing dust in the Alamosa area.

New maximum achievable control technology (MACT) standards will apply to facilities with surface coating operations that emit or have the potential to emit (PTE) more than the MACT standard thresholds of 10 tons per year (tpy) or more of any single HAP or 25 tpy or more of total HAPs (THAP). A facility's PTE is the quantity of emissions that would be generated at maximum capacity under a facility's physical or operational design.