Emissions Inventory

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  1. COVID-19: Effective March 24, the Air Quality Department customer intake counters are closed. The following options are available for customers...

Announcement

The AQD Online Portal was updated on May 11, 2020. This update will correct the following errors that users were encountering when attempting to use the AQD Online Portal:

  • A blue screen with the message – Error – that some users were encountering when clicking on the “Task Emissions Inventory” tab.
  • An error that was forcing users back to their Shared CROMERR Services (SCS) Dashboard immediately after they clicked “Visit” or intermittently while working in the AQD Online Portal.
  • An error that was preventing individuals who were registered as both a Certifier and a Preparer from submitting information through the AQD Online Portal.
2019 Emission Inventory Report
The Maricopa County Air Quality Department (MCAQD) has a new Online Portal for online inventory, monitoring, permitting, and compliance tracking. The portal will allow users to submit and track applications, reports, and documents electronically to MCAQD. Some system functionalities include:

  • Create and submit an Emissions Inventory
  • Submit applications
  • Update facility and contact information
  • Submit compliance reports
Facilities that are required to submit a 2019 annual emissions inventory (EI) report were notified by email. The email was sent to the contacts for each facility.

All 2019 annual EI reports must be completed using the AQD Online Portal (IMPACT). Paper forms will not be accepted.

Please thoroughly review the ADQ Online Portal (IMPACT) webpage, and consider participating in an emissions inventory workshop, to learn how to login to the AQD online Portal to complete your EI report.

Due Dates

Facilities that are required to submit a 2019 annual emissions inventory were notified by email on March 2, 2020. The 2019 annual emissions inventory reports will be due on May 31, 2020 at 11:59 PM.

Contact Emissions Inventory


Phone: 602-506-6790

Overview


MCAQD EI unit collects, reviews, stores, and manages air pollution emissions data for stationary sources in Maricopa County. The EI unit also collects emission fees from Title V sources and provides data to county, state, and federal agencies.

A point source emissions inventory shows annual air pollutant emissions for one specific business location. An emissions inventory may be requested by MCAQD of any facility with an air quality permit in Maricopa County.
 

Annual emissions inventory report serve a number of purposes:


 
  • They help determine a source's compliance with its air quality permit conditions as well as Maricopa County rules and regulations.
  • They help identify pollutant sources that may need new or additional controls, providing a basis for improved air pollution control strategies.
  • They also provide a means of assessing progress in achieving reductions from existing controls.
  • They provide the basis for determining annual emission fees for Title V sources.
  • Inventory data are used as input for air quality modeling to demonstrate attainment of national ambient air quality standards (NAAQS).
Page reviewed 11 May 2020