A legacy of designing, improving and testing air quality control and ventilation systems.
Your Air Compliance Experts
At Verdantas, our engineering experts bring a wealth of knowledge in managing air emissions standards and adapting to the ever-evolving regulatory environment. We support municipalities, facility managers, architects, business owners, and institutions across the country by efficiently collecting, analyzing, and distilling technical data. This enables our clients to make informed, decisions and implement effective initiatives to mitigate risks and maximize returns on investments and land-use potential. We provide robust permitting support, ensuring compliance with all necessary regulations and facilitating smooth project approvals.
Air Quality Permitting and Compliance
Verdantas offers a comprehensive suite of services to ensure regulatory adherence and effective environmental management. Our team of seasoned experts excels in navigating complex state and federal environmental regulations, providing innovative and regulatory-compliant solutions to address air quality challenges. Our services also encompass air dispersion modeling, air toxics evaluations, hazardous air pollutant compliance, pollution control technology evaluations, air emissions tracking and reporting, and greenhouse gas (GHG) evaluations and reporting.
Air Dispersion Modeling Services
Our team utilizes EPA-approved modeling programs, current EPA and state guidance, and client design parameters for the project, they predict pollutant concentrations and deliver comprehensive reports. The team processes appropriate meteorology and receptors with project data for the necessary air dispersion modeling types to forecast pollutant concentrations at areas of interest for a project. In addition to modeling files and results summaries, Verdantas provides the Modeling Protocol and Modeling Report completion steps required for state Air Permitting Modeling Analyses.
At Verdantas, we take pride in upholding a small-business mindset, delivering customized solutions, close collaboration, and clear communication, while leveraging the extensive resources and capabilities of a large, full-service consulting firm. This approach enables us to draw upon our vast experience, utilize our longstanding relationships with regulatory agencies, and ensure successful outcomes for all our clients’ air quality and modeling needs.
Services
Air Emissions Services
- Air Quality Permitting (Title V, NSR, PSD, State-specific)
- Air Toxics Evaluations
- Hazardous Air Pollutant Compliance
- National Emissions Standards for Hazardous Air Pollutant and New Source Performance Standard Compliance
- Pollution Control Technology Evaluations
- Air Emissions Tracking and Reporting
- Air Source Registration
- GHG Evaluations and Reporting
- Refrigerant Management
- Compliance Auditing and Planning
- Regulatory Analysis and Strategy
- Best Available Control Technology (BACT) Analysis
- Stack Testing Oversight
Air Dispersion Modeling Services
- AERMOD modeling: stack location and height optimization, internal risk studies, state standards compliance, NAAQS compliance, and PSD Increment Compliance Demonstrations
- AERSCREEN modeling
- Mobile Source air dispersion modeling, including MOVES
- SLAB modeling

Why Us
We're doing things differently. We're doing them together, with you.