We promote an environment where people and projects succeed.

air permitting and compliance for stationary sources

The Merjent Air Quality Services team provides comprehensive air permitting, dispersion modeling, and compliance assistance.

As a Merjent client you’ll have access to a seasoned air quality engineer, dedicated to your facility, who can offer sound advice and provide knowledgeable suggestions to ensure compliance with federal and state air regulations, while keeping an eye on the horizon for new developments.

Air Service aerial view & diagram

Our goal is to help you secure maximum operational flexibility.


planning and feasibility

  • regulatory applicability assessments
  • permitting strategy advice
  • preliminary facility design guidance
  • New Source Performance Standards (NSPS) and National Emission Standards for Hazardous Air Pollutants (NESHAP) guidance
  • carbon life-cycle analyses

applicant permitting

  • air construction permitting
    • federal new source review/prevention of deterioration (NSR/PSD)
    • state synthetic minor and natural minor source permitting
  • air operating permitting
    • federal major (Clean Air Act Title V)
    • state minor/synthetic minor
    • registration permits
    • permits by rule
  • state/local air permitting exemption determinations
  • control technology analyses, including best available control technology (BACT), lowest achievable emission rate (LAER), and state/area-specific technology analyses
  • air dispersion modeling analyses – class I and class II
  • indirect source modeling
  • general conformity analysis
  • viewshed analyses
  • health risk assessments
  • air toxics assessments
  • odor modeling
  • construction emissions calculations, including emissions modeling
  • operating air emissions calculations

National Environmental Policy Act environmental review

  • emission calculations (construction and operation)
  • general conformity analyses
  • noise calculations and analyses

construction compliance

  • fugitive dust control plans
  • NSPS and NESHAP notifications

operational compliance

  • emission inventories
  • monitoring, recordkeeping, and reporting
  • source test management
  • compliance audits and assessments
  • risk management plan/process safety management (RMP/PSM) development assistance
  • RMP submittals
  • leak detection and repair (LDAR) assistance
  • enforcement support
  • voluntary disclosures
  • operation and maintenance plans
  • startup, shutdown, and maintenance plans
  • compliance assurance monitoring plans
  • toxic release inventories (TRIs)
  • greenhouse gas emission inventories
  • training


Paul Mordorski
Air Quality Services


regional expertise

We assist clients across the U.S.
View our staff project experience map: