EI’s air quality service focus is to assist our clients in achieving regulatory compliance while minimizing costs and providing permit conditions that allow for maximum operating flexibility. This includes all aspects of air quality assessment including preliminary facility expansion planning, identification of pollutants, development of emission control strategies, selection and/or engineering design of air pollution control equipment, regulatory permitting and demonstration of permit compliance.

EI’s air emissions services to industrial clients include:

  • Air pollutant emission inventories
  • Compliance evaluations
  • Clean Air Act Title V permitting
  • Prevention of Significant Deterioration (PSD) permitting
  • Non-attainment permitting
  • Ambient air impact evaluations
  • Atmospheric dispersion modeling
  • Air emission control services
  • Control systems evaluations and engineering design

EI has provided air pollution consulting services to numerous industries, ranging in complexity from grain mills to semiconductor manufacturers and the chemical industry. EI has also worked closely with numerous industries and trade associations in the development of state and federal regulations including NESHAP, NSPS, PSD, and MACT.


The EI Group, Inc. has assisted my company with air permit updates over the last several years.  We’ve worked together on multiple projects.  They are easy to work with, and extremely knowledgeable.  We recently purchased equipment for a critical, quick-turn project.  I was worried that the air permitting process would take too long to meet our deadline.  The EI Group responded immediately and was able to guide us through the process to quickly meet the regulatory requirements without missing the customer’s deadline.  Needless to say, The EI Group is my first and only contact for air permitting matters.

David Murphy

Meredith-Webb Printing Co.

Additional HAP Reporting Requirements Anticipated from Proposed Revisions to AERR for Industry

Additional HAP Reporting Requirements Anticipated from Proposed Revisions to AERR for Industry

The Air Emissions Reporting Requirements (AERR) rule (40 CFR Parts 2 and 51) is a Federal regulation that requires states, local agencies, and some tribes (collectively known as State, Local and Tribal Authorities or SLTs) to report annual emission data to the United States Environmental Protection Agency (EPA).  The current version requires the SLTs (typically the delegated local air permitting authority) to collect and submit emission data for criteria pollutants (e.g., particulate matter, ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide and lead) and precursors (e.g., volatile organic compounds), but does not require Hazardous Air Pollutant (HAP) reporting.