Environmental Consulting
Ambient Monitoring and Service Integration
Trinity’s ambient air quality monitoring expertise ranges from the design and implementation of monitoring stations to routine operations, data validation, and official reporting to meet EPA and state requirements.
Trinity Consultants offers a comprehensive suite of monitoring services tailored to meet diverse environmental needs, ensuring compliance and informed decision-making for clients across various sectors and industries.
Trinity Consultants provides environmental monitoring solutions designed to meet the highest standards of accuracy, reliability, and regulatory compliance. Our comprehensive suite of services encompasses ambient air quality monitoring and systems integration, meteorological assessments, and applied meteorology, providing valuable insights into environmental conditions and trends. With state-of-the-art instrumentation and customized software solutions, we deliver turnkey monitoring programs tailored to the unique needs of each client.
Whether a project requires precise data on criteria pollutants, meteorological parameters, or weather forecasts, Trinity's team of specialists supports our customers every step of the way. From site selection and equipment installation to data management and reporting, we handle all aspects of the monitoring process with meticulous attention to detail.
Our team brings decades of combined experience and expertise to every project, delivering reliable solutions that stand the test of time. With clients across a myriad of industries, Trinity is committed to helping customers navigate complex regulatory frameworks, optimize operations, and achieve their environmental goals.
Ambient Monitoring Services
Our comprehensive suite of ambient air quality monitoring services empowers clients to confidently demonstrate their compliance with air quality standards, mitigating potential regulatory risks and liabilities.
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Related Services
Emissions Testing
Trinity offers expert consulting for emissions (stack) testing, including forensic analysis, program design, and expert witness services.
Air Quality Permitting
Trinity Consultants are experts in air permitting support for compliance with the Clean Air Act, offering comprehensive services from strategy, application development, and agency negotiations.
Air Dispersion Modeling
Trinity provides a wide range of air quality modeling consulting services for regulatory applications, emergency planning, and human health assessments.
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Featured Projects
Nucor Provides Transparency of Steel’s Environmental Impact in Expert Collaboration with Trinity Consultants
Trinity was tasked with developing Environmental Product Declarations (EPD) compliant with California's rigorous Buy Clean California Act (BCCA) requirements.
Aerospace Leader Partners with Trinity to Lay Foundation for ESG Program
Trinity developed site-specific environmental sustainability implementation plans as well as a corporate environmental sustainability program framework for maintenance.
Penske Teams up with Trinity to Quantify Global Greenhouse Gas Emissions
Trinity works with both Penske Truck Leasing and Logistics in furthering the organization’s commitment to managing its environmental impact and reducing GHG emissions.
Trinity's In-Depth Insights Help Lime Manufacturer
In 2022, a leading North American lime manufacturer asked Trinity to take over its quarterly board of directors’ regulatory and policy reports.Regulatory Background
Ambient Air Quality Standards
Understanding National Emission Standards for Hazardous Air Pollutants (NESHAP) Requirements
NESHAP, established under the Clean Air Act (CAA), seeks to regulate, and limit the emissions of hazardous air pollutants (HAPs) from various industries. These standards are designed to safeguard public health and the environment by imposing emission limits and requiring the implementation of state-of-the-art control technologies also known as Maximum Achievable Control Technology (MACT) standards. Within eight years of setting MACT standards, EPA is directed by the CAA to review and revise the standards to account for improvements in air pollution control and/or prevention.
During the 2015 NESHAP update for Petroleum Refineries, EPA implemented amendments to 40 CFR Part 63, Subparts CC and UUU that required all petroleum refineries to implement fenceline monitoring programs to identify emissions from fugitive sources, such as equipment leaks, to ensure quick corrective action to reduce offsite impacts of air pollutants.
In 2023, EPA proposed fenceline monitoring requirements for other industries (synthetic organic chemical manufacturing, coke ovens, and integrated iron and steel) with the intent of identifying offsite fugitive emission impacts and implementing corrective action.
Equipped with this intelligence, each Trinity fenceline monitoring project is custom designed by our experts to ensure your monitoring technologies and networks meet your regulatory requirements.
Understanding Tightened PM 2.5 National Ambient Air Quality Standards (NAAQS) and Associated Timelines
The United States Environmental Protection Agency (EPA) signed a final regulation to reduce the magnitude of the annual National Ambient Air Quality Standard (NAAQS) for fine particulate (PM2.5). The final rulemaking reduced the primary (health-based) annual NAAQS from the current value of 12.0 µg/m3 to a value of 9.0 µg/m3.
The effective date of the lowered NAAQS is May 6, 2024, or 60 days after the Federal Register publication date. This is critical because EPA finalized a provision that indicates that any Prevention of Significant Deterioration (PSD) air permit requiring air dispersion modeling for PM2.5 needs to be issued final prior to the effective date of the new NAAQS. If a final permit is not issued in time, a modeling demonstration showing compliance with the lowered NAAQS will be required. Compliance with the reduced NAAQS will be required for PSD projects without final permits even if a permit application has been submitted to the reviewing agency or if a draft permit is issued by the reviewing agency for public comments before the effective date.
Additionally, EPA finalized changes to ambient monitoring rules including provisions for locating monitors in at-risk communities, updating quality assurance calculations, and approvals for reference and equivalent monitoring methods. As a result, it will be very important to understand ambient background concentrations in the area around your facilities.
Perspectives
Related News & Insights
Requested Public Comment for Klamath Falls PM2.5 Maintenance Plan
Enhancing Environmental Accountability: Recent Updates in MACT Requirements for Fenceline Monitoring
UDAQ Expands Modeling Authority with New Emissions Impact Assessment Guidelines
Read MoreMeet the Team
Casey Lenhart
Director, Monitoring Services
Randall Baxter
Project Manager, Monitoring Services