- Roanoke, VA
- Columbus, OH
- Chevy Chase, MD
- Findlay, OH
- Cleveland/Independence, OH
For more than 20 years, Trinity Consultants has assisted facilities in the aerospace industry with regulatory compliance and environmental management issues.
Trinity has a long history of assisting facilities with their regulatory compliance and environmental management systems.
Trinity helps chemical and pharmaceutical manufacturers to achieve regulatory and environmental compliance.
Trinity has assisted clients with nearly 500 power-related projects, offering an array of services.
Due to their nature, “general manufacturing” facilities are often faced with reviewing a wide range of regulations to determine applicability.
Trinity provides a variety of services to government entities, including environmental permitting and compliance management.
Trinity Consultants has long been committed to assisting lime and aggregates facilities with their regulatory compliance needs.
Trinity takes pride in understanding the regulatory issues affecting our clients’ facilities and their industry.
Oil and gas facilities must contend with a variety of regulatory compliance and environmental management demands.
Trinity helps petroleum refineries to achieve compliance with complex environmental regulatory requirements.
Trinity Consultants has long been committed to assisting cement facilities with their regulatory compliance and environmental management needs.
Trinity has extensive experience assisting the pulp and paper industry with its regulatory compliance and environmental management requirements.
Railroads are faced with rapidly evolving state, regional, and federal regulatory framework in the United States.
For more than 25 years, Trinity Consultants has assisted facilities in the semiconductor industry.
Trinity Consultants has performed nearly 800 environmental permitting and compliance projects for clients with terminal operations, providing cost-effective, timely solutions that enhance compliance while maintaining operational flexibility.
For nearly 30 years, Trinity Consultants has assisted facilities such as those in the highly regulated wood products industry.
The Toxic Chemical Release Inventory (TRI) report deadline is approaching rapidly! TRI reports are due July 3rd this year, as the normal due date of July 1st falls on a weekend. There are several changes to this year's TRI report that might affect »
The South Coast Air Quality Management District (SCAQMD) has released the Draft Staff Report for Proposed Amended Rule 1147 – NOx reductions from Miscellaneous Sources. This rule amendment provides relief by extending compliance dates and providing »
Trinity Consultants, Inc., an international environmental consulting firm that specializes in industrial air quality issues, has named Adam Erenstein as manager of its Albuquerque, NewMexico office. A former Air Inspector with the Maricopa County »
The Occupational Safety and Health Administration (OSHA)’s Process Safety Management (PSM) regulation applies to those companies whose processes involve any of the more than 130 specific toxic and reactive chemicals at or above listed quantities, as »
We are excited to bring you 3 updates to your air dispersion modeling software. The new enhancements and features in these updates include the latest U.S. EPA executables as well as improved options to expedite model run time.BREEZE AERMOD Version »
Trinity's Environmental Quarterly (EQ) magazine covers environmental regulatory developments as well as topics related to corporate environmental performance.
all issues from 2009
These papers, presentations, and articles were authored by the staff of Trinity Consultants for presentation at various conferences.
all papers & presentations
Since its founding in 1974, Trinity has expanded its geographic footprint and breadth of services. We attribute our continued growth to a focus on cornerstone values of top-notch technical performance and excellence in client service.
For more than 40 years, Trinity Consultants has performed air dispersion modeling for industrial facilities, utilities, and government agencies. Trinity is recognized nationally and internationally for our skills and advanced modeling software/infrastructure, enabling Trinity to formulate and conduct dispersion modeling studies for numerous applications. With the implementation of new, state-of-the-science dispersion models, and more companies realizing the value of dispersion modeling as a planning tool to assess the feasibility of major capital projects, optimize operations, and mitigate risk, Trinity provides unparalleled expertise and service for regulatory situations as well as specialized, often technically challenging scenarios: Assessing impacts of air emissions from a single site or cumulative sites to demonstrate compliance with ambient air quality standards and other air quality-related values (acid deposition, visibility, regional haze, etc.) utilizing U.S. EPA preferred models (e.g., AERMOD) and beta-version AERCOARE (the marine environment version of AERMOD) Assessing impacts of offshore emissions on the air quality of coastal regions using the Offshore and Coastal Dispersion (OCD) model Assessing visible plumes, icing, and fogging impacts due to high water-content air emissions using specialized models such as FOG, SACTI, and CALPUFF Performing off-site consequence analyses for risk management planning and meeting state and local air toxic modeling requirements using EPA dispersion, fire, and explosion models included in BREEZE Incident Analyst Evaluating individual and cumulative human and ecological risk, and performing probabilistic risk analyses using various modeling tools including BREEZE Risk Analyst and other risk modeling tools Conducting off-site impact and deposition studies to support litigation activities Performing fatal flaw analyses for siting considerations Predicting the impact of roadway air emissions with MOVES and AERMOD (EPA is proposing to replace CALINE as a preferred roadway model) Conducting regional modeling studies with the Community Multi-scale Air Quality (CMAQ) model and the Comprehensive Air-quality Model with extensions (CAMx, a photochemical model) for regional haze analyses, control strategy evaluations, ozone/PM2.5 impact assessments, and inter-pollutant credit demonstrations in support of nonattainment new source review permitting Conducting odor concentration modeling and predicting the effect of different abatement strategies using SCREEN3, AERSCREEN, AERMOD, and CALPUFF Analyzing potential risks associated with release of liquefied fuel gas (LFG) and liquefied natural gas (LNG) using BREEZE LFG Fire/Risk and Incident Analyst Predicting structural damage and personnel injury from the detonation of high explosives and vapor cloud explosions with BREEZE ExDAM, and illustrating setup and results in powerful 3D graphs and animations Processing model-ready meteorological data from surface/upper air observations as well as prognostic meso-scale meteorological models (WRF/MM5) to support to various dispersion models (AERMOD, CALPUFF, CMAQ, CAMx, OCD, etc.) Air Dispersion Modeling Services Trinity provides a wide range of air quality modeling consulting services for regulatory applications, emergency planning, and human health assessments. Regulatory Air Dispersion Modeling Trinity is a global provider of air dispersion modeling, air quality compliance services, and software solutions to regulated air emissions sources of all varieties. Trinity is a leader in the practical use of AERMOD, CALPUFF, and other dispersion models, and has developed numerous tools to aid in identifying subtle anomalies in modeled results that can often be challenged in a regulatory context. Trinity is also the only provider of true high performance computing (HPC) solutions for models such as AERMOD, CALPUFF, and SCIPUFF. Trinity’s high performance software solutions and high-speed cluster modeling infrastructure save incalculable computer processing hours, enabling more in-depth analyses and faster project completion. Class I Area PSD Impact and Regional Haze Analyses Trinity has performed numerous Class I area analyses in support of Prevention of Significant Deterioration (PSD) permit applications including PSD Class I Increment and Air Quality Related Value (AQRV) analyses, i.e., visibility and acidic deposition using CALPUFF. In addition, Trinity has completed visibility assessments using VISCREEN and PLUVUE and regional haze analyses for Best Available Retrofit Technology (BART) and Reasonable Progress evaluations in support of the Regional Haze Rule with CMAQ/CAMx. CALPUFF and CAMQ/CAMx modeling requires far more sophisticated analysis than typical near-field models. Because CALPUFF may soon be demoted by EPA as a preferred model, Trinity is increasingly using CMAQ/CAMx for BART and Reasonable Progress evaluations. CAMx has gained favor because of its superior consideration of chemical reactivity as well as other options. We are also versed in the use of SCICHEM, another possible alternative to CALPUFF. Multi-Pathway Risk Assessment Dispersion Modeling Trinity has assisted industry, regulatory agencies, and trade associations with technical and modeling support to conduct human health and ecological risk assessments. These projects have included National Environmental Policy Act (NEPA) projects such as coal-gasification plants, MACT residual risk assessments, risk assessments to support RCRA facility permitting for hazardous waste incineration or that utilize hazardous waste derived fuel, and other air quality assessment studies with both inhalation and ingestion pathway assessments. These specialized studies employ a combination of BREEZE AERMOD/ISC, BREEZE Risk Analyst, and other risk modeling tools to account for inhalation and ingestion pathways for maximum exposed individuals and overall population impacts. Emergency Response Planning and Associated Acute Risks Trinity performs many health effects impact studies for actual and potential releases of toxic and hazardous air pollutants. These studies have included emissions estimations, acute toxicity evaluations for comparison to threshold limit value-based concentration limits, cancer risk assessment, and ambient monitoring studies. Trinity’s staff has considerable experience modeling emissions from accidental releases of liquid spills and spills of liquefied gases using dense gas models including DEGADIS, SLAB, ExDAM, VASDIP, and HEXFRAG. Both BREEZE Incident Analyst and BREEZE ExDAM contain a suite of agency-recognized and industry-standard models that can be utilized in various scenarios. High Performance Computing Solutions Trinity provides true high performance computing (HPC) solutions for models such as AERMOD and CALPUFF. The BREEZE Remote Modeling System (or BRMS), delivers runtimes up to 100 times faster (e.g., 8 hour runs reduced to 5 minutes) than standard desktop computing. The BRMS for AERMOD operates on a massively parallel computer cluster that harnesses the processing power of multiple multi-core computers. Users can submit data online, anytime, and receive email notification when model results are available. The BRMS utilizes the BREEZE AERMOD Parallel Fortran application, which produces identical results to EPA’s public air dispersion model. Model Development and Training Since 1983, Trinity has provided market leading PC-based BREEZE® air dispersion modeling software to environmental professionals. Trinity also provides professional training courses in dispersion modeling, taught by senior-level consultants who are dispersion modeling experts. In addition, Trinity develops customized modeling applications and teaches custom courses to meet the needs of individual organizations. Why Choose Trinity In short, there’s no better choice for your dispersion modeling needs. Our experience is multi-faceted and extensive. Our strategies are innovative, time saving, and cost-effective. Our staff and tools are the best in the business.
Whether constructing a new industrial facility, expanding production, or modifying operations, owners and operators may be subject to air quality permitting requirements. Industrial sources must be designed, constructed, and operated to comply with all applicable air quality regulations. Air quality permitting requirements exist within a range of regulatory programs, including state and local codes, and federal programs such as New Source Review and the Title V operating permit program. Each permitting program has associated technical requirements such as emissions quantification, control technology evaluations, air quality analyses (including regulatory dispersion modeling), ambient air and meteorological monitoring, emission standards applicability, and compliance assurance. Trinity Consultants can assist with all phases of the air permitting process. We have completed thousands of permitting projects and our experience translates into accurate, timely permit applications that are strategically crafted for maximum flexibility, and expert negotiations with regulatory agencies, streamlining the permitting process. New Source Review The federal New Source Review (NSR) program requires that new and modified major sources undergo rigorous air quality analyses and receive a permit prior to commencing construction on any physical changes or changes in the method of operation. The analyses must demonstrate the implementation of appropriate pollution control technology and maintenance of air quality standards. NSR is a constantly evolving program, at both the state and federal levels. To determine NSR applicability, Trinity identifies and characterizes emissions from the equipment that comprise the regulated source. Using this information, along with U.S. EPA attainment designations, Trinity performs a thorough regulatory review to determine applicability and requirements of Nonattainment New Source Review (NNSR), Prevention of Significant Deterioration (PSD) regulations, and state construction permitting requirements. Trinity then works with its client to develop a permitting strategy that will enable the project to proceed in a timely manner, while optimizing operational flexibility and minimizing costs. Nonattainment NSR (NNSR) Requirements New or modified major sources in areas designated as nonattainment with National Ambient Air Quality Standards (NAAQS) may be subject to NNSR. If potential emissions from a modification exceed threshold quantities and the facility is a major source of emissions, Trinity’s technical staff will conduct an emissions netting analysis. Emissions netting considers previous emissions changes (within a defined period) at an existing major source to determine if the proposed modification can avoid classification as a major modification. If NNSR is triggered by a project, Trinity will conduct the required Lowest Achievable Emission Rate (LAER) control technology assessment (or the less stringent Best Available Control Technology (BACT) assessment in certain limited circumstances). Other NNSR requirements include locating and purchasing emissions offsets from other permitted sources that have certified emissions reduction credits, as well as demonstrating that the benefits of the project significantly outweigh the environmental and social costs imposed as a result of the chosen location, size, or production processes. In addition to assisting with permitting requirements, Trinity also supports clients with identifying and negotiating the purchase of offsets. Prevention of Significant Deterioration (PSD) New or modified major sources located in areas designated as attainment with NAAQS are subject to PSD review if emissions or net emissions exceed certain threshold quantities. Assessing PSD applicability is a complex undertaking based on volumes of guidance and policy issued by EPA over the program’s history. Trinity’s depth of experience with the PSD program supplies our clients with the nuanced insights needed to develop the optimal permitting strategy. Like NNSR, PSD regulations allow major sources to “net” out of PSD review, should that be practicable. Projects triggering PSD review require a best available control technology (BACT) analysis and extensive air dispersion modeling that addresses issues such as complex terrain, direction-specific building downwash, and visibility impairment and regional haze impacts in designated Class I areas. As a cornerstone of its technical skill set, Trinity has the specialized expertise to conduct the most challenging dispersion modeling analyses. Obtaining a PSD permit in a timely, cost-efficient manner requires a thorough understanding of the entire PSD program. Our extensive experience with the PSD program helps save clients thousands of dollars in permitting costs and opportunity costs that could result from delays in the start of construction. Operating Permits Client Services to Streamline Air Permitting Regulatory applicability analyses Permit strategy development Emissions quantification Emissions netting analyses Permit application development Compliance management tools Compliance certification assistance Control technology evaluations Emissions trading assistance The Title V program is a federally enforceable operating permit program for significant sources of air emissions, as defined by certain annual threshold levels. Subject sources must submit permit renewal applications every five years to update regulatory applicability and address changes at emission units at the facility. In addition to renewal applications, facilities may also be required to submit Title V permit modification applications if they undertake new construction, make changes in source operations, or become subject to new or existing regulations (e.g., a NESHAP regulation). In addition to the permit requirements, the Title V program shifted the burden of demonstrating compliance from the regulatory agency to the facility. Compliance demonstration and certification may be a significant undertaking depending on company processes, regulatory requirements, and the efficiency of the company’s recordkeeping and reporting methodologies. Trinity Consultants has prepared more than 850 initial Title V operating permit applications, permit renewal applications, and permit modification applications in all ten EPA regions. Trinity's depth of experience benefits clients in developing Title V permit applications that maximize operational flexibility while assuring monitoring, recordkeeping, and reporting efficiency. Our experience in preparing permit modification applications across all industries allows Trinity to bring unique insight to each engagement and to develop the most beneficial strategies based on client needs. Trinity built its reputation for excellence on air quality expertise. Air permitting is the foundation of our business and our staff of air quality experts is one of the largest in the country. Our focus on air quality and commitment to ISO 9000-based quality management has resulted in project delivery systems designed to complete jobs on time, accurately, and within budget. Contact your local Trinity office at (800) 229-6655 for assistance.
Trinity’s merger with Meteorological Solutions, Inc. (MSI) of Salt Lake City enhanced our ability to provide comprehensive, turnkey meteorological and ambient air quality monitoring services to our clients. Trinity/MSI’s monitoring solutions include the highest quality instrumentation, installed by Trinity/MSI professionals, as well as customized software for data monitoring, retrieval, analysis, reporting, and presentation. Our quality assurance and quality control programs ensure that collected data meet jurisdictional regulatory requirements for completeness, representativeness, precision, and accuracy, achieved by conducting performance and system audits using accepted guidelines and methods. Our team provides a full range of air quality and meteorological services including: Complete siting services Agency negotiations Monitoring and quality assurance plan development Equipment installation and calibration Multiple telemetry options including cellular and satellite Automated 24/7 data retrieval every 5 minutes Automated zero span and precision checks Complete data management and validation Official data reporting in state and EPA formats Secure client access to real-time data with extensive plotting and analysis features Iterative modeling site assessment Automated data evaluation and validation Meteorological towers from 2 meter tripods to 100 meter multi-level towers with solar powered option Continuous monitoring of all criteria pollutants (NO2, ozone, SO2, CO, PM10, PM4.0, PM2.5) Complete data requirements rule (DRR) SO2 monitoring services We are able to assist with the collection of data related to meteorological parameters, criteria pollutants, air toxics, and hydrocarbons. With our 1,200 sq. ft. state-of the art laboratory, we are able to acceptance test and integrate monitoring equipment, conduct site telemetry prior to deployment, and maintain the spare parts needed to keep installations operational. Our monitoring services are led by technical director Casey Lenhart, Instrumentation and Integration Manager. Casey has nearly 20 years of experience in monitoring site logistics and system development, equipment installation and maintenance, data quality assurance, and agency negotiations. Casey leads a team of specialists who configure, install, calibrate, data process, and quality assure stations across the country. For more information on how Trinity/MSI can assist with your monitoring needs, call (801) 272-3000 or email email@example.com
Cap-and-Trade (C&T) programs have become increasingly important in the control and regulation of regional and global air pollutants. In contrast to traditional air pollution regulations, C&T programs require subject facilities to comply with a facility emissions cap that declines on an annual basis, while providing the flexibility to buy and sell excess emission reductions (referred as allowances or credits). Since the 1990 Clean Air Amendments, C&T programs have been used to regulate regional air pollutants, such as volatile organic compounds (VOCs), oxides of nitrogen (NOx), and oxides of sulfur (SOx). In recent years, C&T programs are being used as the primary regulatory vehicle for controlling greenhouse gas (GHG) emissions within the U.S. and internationally. Where applicable, C&T programs can impact many different types of air pollution sources and industrial sectors, including heavy industry, manufacturing, power, transportation fuels, and utilities. Depending upon the specific rules developed by the regulatory authority, C&T facilities must contend with numerous compliance requirements that far exceed traditional air pollution regulations, which may include: Declining annual permit limits Industry benchmarking for free credit allowances Daily, monthly and/or annual emissions reporting Quarterly and annual permit reconciliations Buying and selling of emission credits Forecasting future emissions and credit needs Developing air pollution control plans and strategies Continuous Emissions Monitoring (CEMS) Frequent regulatory audits, inspections and testing Independent 3rd party verifications Trinity’s multi-disciplined staff provides the highest quality C&T support services that enhance strategic planning and regulatory compliance while maximizing operational flexibility. Trinity helps its clients accomplish this by combining regulatory expertise, technical proficiency, responsiveness, and creative thinking. Trinity offers strategic advisory and consulting services to prepare and support clients in all phases of C&T regulatory programs, including: Early stages of rule development Annual reporting and compliance Buying/selling of allowances Air pollution control plans and compliance forecasting Trinity regularly monitors the development of C&T programs and actively supports hundreds of regulated facilities throughout the United States and international territories. For more information on Trinity’s C&T regulatory services, please contact Charles Lee or Steve Walters at (949) 567-9880.
Industrial facilities subject to air permits and regulatory emissions limits must frequently implement sophisticated Continuous Emissions Monitoring Systems (CEMS) to demonstrate compliance. Without a solid understanding of the federal regulatory requirements under 40 CFR Parts 60, 63 and 75 (as well as state and local requirements) and the development of a good CEMS program, demonstrating compliance with the applicable requirements can be difficult. For more than four decades, Trinity Consultants has assisted facilities with air quality permitting and compliance including CEMS related services. Trinity performs CEMS program audits, developing or reviewing existing Parts 60 and 75 Quality Assurance Plans (QAP), and associated permitting. Maintenance of CEMS is an integral part of any QA/QC program and Trinity can assist in creating or updating facility maintenance programs to ensure maximum CEMS data availability and efficient use of existing resources by providing best practice recommendations. We also provide related training courses which detail specific applicable regulations and CEMS maintenance and quality assurance. Trinity’s experienced professionals have the expertise to help you ensure a CEMS program that meets your legal obligations and streamlines associated processes. For assistance, contact Eric Wiley at (949) 567-9880 or firstname.lastname@example.org.
Emissions Inventories Many air quality permitting projects require a facility-wide inventory of all air emissions sources. An accurate accounting of emissions is also necessary for payment of annual permit fees to state and local regulatory agencies. In addition to common point sources, facilities often have emissions sources that are more difficult to identify and quantify, such as raw material storage piles, material handling operations, solvent cleaning of parts and machinery, surface coating operations, and dust from roadways and parking lots. Use of appropriate emission factors and rates is crucial for developing permitting strategies, determining applicable regulations, and performing air dispersion modeling analyses. Trinity has conducted emissions inventories for thousands of facilities, some with more than 1,000 individual emission points, including fugitive, mobile, point, area, and line sources. We utilize a variety of resources to arrive at the most appropriate emission factor for each source, including information developed by EPA, industry organizations, and equipment manufacturers. Upon completion of the emissions inventory, Trinity compiles the emissions data and corresponding calculations and prepares detailed reports documenting this information. An appropriate tracking and reporting methodology may be as simple as a customized spreadsheet or as sophisticated as a company-wide, fully integrated EH&S management information system. Trinity and T3, our EH&S technology group, has provided a broad range of emissions data management solutions, consistent with the complexity of the site and the budget of the client. TRI Reporting Reporting of toxic chemical releases is integral to being in compliance, as well as to being a good neighbor and environmental steward, and to enhancing company image. Trinity has conducted chemical release estimates for thousands of facilities, some with complex processes involving complicated chemical reactions and physical manipulations, and dozens of waste streams. We utilize many resources to determine the most appropriate release estimation method for each chemical, including information developed by EPA, industry organizations, and equipment manufacturers. We also develop custom chemical release tracking and reporting tools that are consistent with the complexity of the site and the budget of the client. Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA, or Title III of the Superfund Amendments and Reauthorization Act of 1986) requires submission of the Toxic Chemical Release Inventory (TRI) report every July 1. Trinity assists with TRI reporting by conducting a chemical-by-chemical threshold determination to confirm reporting applicability, and then assembling the required information to develop media by media release estimates for each chemical considering the variables unique to each site/chemical combination. In addition to TRI reports, Trinity also assists clients with Tier II Chemical Inventory reporting, and emergency release notifications required under CERCLA/EPCRA including continuous release reporting. For assistance, contact your local Trinity office at (800) 229-6655.
Trinity provides expert consulting services related to emissions measurement, also known as “stack testing.” Services include: Forensic analysis of test programs that yield questionable results Design and implementation of test programs Expert witness services related to test program issues Test program management Assistance with test programs that involve unusual, non-standard emissions units and/or test methods While Trinity does not perform emissions testing in North America, our experts have decades of experience with EPA test methods and with a wide variety of emissions units that require periodic testing. Trinity also offers professional training courses designed to familiarize environmental professionals with emissions measurement programs, common errors, and effective emissions measurement program management. For assistance, contact Richard Trzupek at (630) 495-1470 or email@example.com.
Trinity Consultants provides Leak Detection and Repair (LDAR) assistance for the oil and gas, refining, chemical, and petrochemical industries. Trinity is knowledgeable regarding LDAR regulatory requirements and has provided compliance and field support to many facilities nationwide. Trinity’s LDAR experience includes applicability and compliance support for facilities subject to New Source Performance Standards (NSPS), National Emission Standards for Hazardous Air Pollutants (NESHAP), Maximum Achievable Control Technology (MACT) standards, the Resource Conservation and Recovery Act (RCRA), and state specific requirements, including but not limited to: NSPS - 40 CFR 60, Subparts VV, VVa, GGG, GGGa, KKK, and OOOO NESHAP - 40 CFR 61, Subparts F, J, V, and FF MACT - 40 CFR 63, Subparts H, I, S, CC, HH, SS, TT, UU, YY, GGG, MMM, EEEE, FFFF RCRA Subpart BB Trinity performs gap assessments of facilities’ LDAR programs, reviewing them for compliance with applicable requirements. We also facilitate the development and implementation of LDAR programs including the following tasks: Defining LDAR program and training requirements Acquiring equipment and providing the associated training Implementing monitoring equipment capable of logging data for upload to tracking software Assisting in software selection for long-term program compliance documentation Integration with multiple LDAR databases such as LeakDAS, FEMS, and GuideWare Trinity also conducts third-party LDAR audits for clients in the chemical and refining industries. Trinity has performed multiple third-party LDAR audits as required by client’s Consent Decrees. And, Trinity provides professional training, Compliance Management for Fugitive Emissions & LDAR, as well as custom training on Method 21 and other related topics. Trinity provides a wide range of assistance related to LDAR, including the following: Applicability determination Enforcement assistance Response to Section 114 requests Reporting assistance Performing LDAR emission calculations Training (e.g., custom courses) Preparation of written programs For LDAR assistance, please contact Inaas Darrat at firstname.lastname@example.org.
The U.S. EPA has completed its mandated development of the vast majority of the New Source Performance Standards (NSPS) and Emissions Guidelines (EG) in 40 CFR 60 and the National Emissions Standards for Hazardous Air Pollutants (NESHAP) in 40 CFR 61 and 40 CFR 63 (“MACT standards”). Trinity has tracked these regulations from their genesis in the 1970 Clean Air Act (CAA) and the CAA Amendments of 1977 and 1990. Trinity has an extensive history of providing industry with related compliance assistance such as applicability determinations, compliance plan development, development of testing and monitoring programs, and more. Additionally, Trinity monitors the ongoing development and promulgation of new NSPS and NESHAP rules. Trinity has partnered with companies and trade organizations to prepare rule development surveys, comment on EPA’s proposals, and analyze the surveyed actual emissions data from which Maximum Achievable Control Technology (MACT) standards are developed. Today, equipment in nearly every facility in the U.S. is affected by one or more NSPS/EG or NESHAP rules. The requirements in these rules are often the first area of consideration in many air permitting studies. With more than four decades of experience in air regulations and permitting, Trinity can be of great value in helping you interpret EPA’s rulemaking information and determine effective compliance solutions for your operations. For assistance, contact your local Trinity office at (800) 229-6655.
Noise and vibration are inherent to industrial equipment and operational activities. Sources of noise can include: fans and exhausts; vehicle operations; baghouses and control equipment; rotating machinery; material handling; motors; reciprocating engines; turbines; steam and gas venting; pressure drops in piping systems; and many others. Potentially an environmental nuisance, noise and vibration are becoming increasingly regulated by federal, state and local agencies. For example, certain natural gas projects under the jurisdiction of the Federal Energy Regulatory Commission (FERC) are required to conduct detailed ambient sound measurements and noise impact analyses at noise sensitive areas to demonstrate compliance with federal noise standards. Increasingly more municipalities are adopting noise ordinances that set technical noise standards at plant fence lines and residential receptors. Failure to comply with these standards can lead to community relations issues and potential lawsuits. Trinity provides a wide range of noise and vibration services including the following: Industrial noise impact assessments Ambient sound and vibration measurement and characterization Federal, state and local noise standard compliance planning and verification Background noise studies Siting studies for new plants and expansions NEPA Environmental Assessments (EA) noise reports FERC Resource Report 9 noise section preparation Noise impact mitigation assistance Predicting Noise Impacts Trinity can predict the impact of noise sources at fence lines and noise sensitive areas using both vector modeling software packages (e.g., CadnaA and SoundPLAN) and our workbook-based calculation tools. Vector modeling software enables accounting for complex scenarios, such as industrial facilities having multiple sources spread over large areas, widely varying topography, structure reflections, ground cover, barriers, atmospheric effects, etc. It also provides a means of determining which noise sources have the largest impact on any given receptor, and allows the testing of proposed noise mitigation measures. Trinity’s workbook–based calculation tools along with a database of acoustical data for many types of noise sources, typically offer a conservative prediction at modest expense for uncomplicated scenarios. Trinity’s modeling tools allow us to: Incorporate complex building and terrain geometry Generate noise contour plots Efficiently quantify multiple noise sensitive areas Generate 2D and 3D visualizations Avoid costly field studies by using source data and predictive analysis Measurement and Characterization When appropriate, Trinity uses research-grade sound level meters (SLMs) in the field to measure ambient sound levels and characterize sound sources at noise sensitive areas and fence lines. This is a requirement for certain federal rules, and is often necessary and prudent before undertaking construction of new noise sources in municipalities with noise standards and when investigating noise related complaints. Trinity can also measure the magnitude and frequency of ground vibrations as needed to demonstrate compliance with vibration standards. Project Experience Trinity personnel have performed noise and vibration monitoring and impact assessment projects in numerous US states and Canadian provinces. Projects have ranged from the predictive modeling of impacts at Noise Sensitive Areas and assistance with selection of mitigation methods to measurement and characterization of ambient noise and vibration levels and sources, and measurement of acoustic emission data for noise sources. Facilities and emission sources for which we have performed noise and vibration assessments include the following: Stationary reciprocating and combustion-turbine powered electrical generating systems Many types of manufacturing facilities Natural gas compressor stations and storage facilities Reciprocating engines, turbines, cooling systems, dehydrators, pressure reduction valves and vents, substations, etc., at natural gas compressor stations Construction projects involving heavy equipment Horizontal directional drilling and salt cavern development activities Trinity has prepared and conducted the modeling and monitoring work and prepared the sections of Resource Report 9 necessary to characterize ambient sound quality and predict noise impact for natural gas projects in many states. Our experience includes responding to FERC data requests, and conducting post-operational compliance demonstration monitoring. Understanding and Selecting Noise Mitigation Trinity can assist its clients in understanding and selecting noise mitigation measures, including exhaust and vent silencers, acoustic insulation for buildings, ventilation systems and piping, noise berms and barriers, work practices, proper equipment specifications, etc. Trinity has a library of noise mitigation equipment and vendor data for use in selecting appropriate mitigation measures. For assistance with noise and vibration services, please contact Chris Scullion at email@example.com.
While odor issues are often addressed on a case-by-case basis when nuisances occur, state laws and local ordinances are increasingly adopting specific odor guidelines and criteria. Some jurisdictions have even established odor testing protocols and air dispersion modeling practices tailored specifically for odor. Hence, odor measurement, modeling, minimization, and management are becoming more critical for industry. Many jurisdictions in North America define odor criteria using a relative strength scale in terms of “odor units,” or simply, OU. As a reference, one odor unit (or 1-OU) represents the level where 50% of the population can begin to detect an odor. For example, if an established odor criteria was 7-OU, then the odors present in the air would be at a strength that would require 7 dilutions with ‘clean’ air to meet the threshold where half the population could no longer smell the odor. Odor is inherently complex and difficult to quantify because it is often caused by a mixture of chemical substances. Odor is also quite subjective by its nature and can affect individuals differently. Therefore, odor assessments typically employ FIDOL observations to further characterize impacts. Frequency - how often the odor impacts occur Intensity – the relative odor strength (faint to overwhelming) Duration – the length of time for a given odor event Offensiveness - the character or description of the odor Location – mapping impact location and identifying potential off-property contributing sources Trinity conducts ambient field studies using olfactometers using pre-screened, certified assessors. (Pre-screened assessors fall into a specific range of odor tolerance to ensure assessors are not overly sensitive or insensitive to odor.) We also use atmospheric dispersion models such as AERMOD for assessing odor impacts and compliance at sensitive points of reception. Odor modeling assessments typically employ a source testing component to quantify odors directly at the source. Samples collected at the source are sent to a certified odor panel for analysis. For assistance with odor analysis, please contact Chris Scullion at firstname.lastname@example.org.
Trinity serves a broad cross-section of industries with Process Safety Management (PSM) and Risk Management Program (RMP) support. We work with clients to determine whether the facility uses any of the listed chemicals in quantities that exceed program applicability thresholds. If so, we evaluate options to modify processes in order to opt out of the applicable program or step down to a less rigorous level (in the case of RMP). Once program applicability is determined, we can assist with the development of the PSM/RMP applicable components - Hazard Assessment, Prevention Program, Emergency Response, and the RMPlan. RMP Hazard Assessment The primary element of the Hazard Assessment is an off-site consequence analysis to determine the potential impact of “worst case” and “more likely” accidental release scenarios. The worst-case analysis determines which program level is required under the rule. Trinity’s modeling and regulatory compliance experience is invaluable in helping clients determine the appropriate program level. Depending upon the results of the worst case analysis, alternative scenario analyses may be required. The first step in the Hazard Assessment is to identify the appropriate release scenarios based on a facility’s process safety information. An experienced risk assessor then reviews the site’s operations and layout. The scenarios should be selected by balancing the likelihood of an incident, the estimated distance to a predicted endpoint, and effective communication of actual plant risks. Using realistic, credible analytical methods helps prevent public miscommunication. Whatever the local concerns and type of hazards, Trinity can assist in the development of scenarios that are representative and reasonable. Prevention Program Development and Review The Prevention Program includes the most technically demanding and labor-intensive elements in a PSM/RMP program. All of the following elements may be required in a Prevention Program: Process safety information Process hazard analysis Operating procedures Training Mechanical integrity Management of change Pre-startup review Compliance audits Incident investigation Employee participation Hot work permit Contractor safety Emergency response (PSM) Trade Secrets (PSM only) Trinity’s staff has participated in the development, review, and implementation of all elements of the Prevention Program. With client staff, Trinity conducts safety reviews and hazards analyses, identifies weaknesses, and makes recommendations. If a facility has an existing program, Trinity reviews the program to ensure that it meets all legal requirements and is consistent with good engineering and management practices. Trinity also works with the client to develop an effective, grass-roots accident prevention program if needed. Risk Management Plan and Community Relations Once the necessary analyses have been performed and programs developed, Trinity can assist with documentation and communication of the plan, which includes completing EPA’s checklist, submitting the plan, documenting the assumptions behind the analysis and program development, and communicating the results to the public. Our experience teaching technical material, along with our experience providing expert testimony, help us communicate complex technical issues, implement public communication programs, and prepare a timely and accurate response to any issues raised as a result of the assessment. Trinity also helps facilities ensure that they meet their requirements under the General Duty clause to provide employees with an environment that is free from recognized hazards that cause or are likely to cause death or serious physical harm. Finally, Trinity offers turnkey chemical safety program services for industrial clients in the following areas: Tracking applicable regulatory developments PSM/RMP applicability determinations Assisting with preparation and implementation of prevention program elements Conducting program audits including required triennial regulatory compliance audits Facilitating Process Hazard Analyses (PHAs) for existing and new operations Conducting off-site consequence analysis (OCA) modeling Preparing the Risk Management Plan, updates and submittals Training personnel on PSM/RMP elements and program execution Assisting clients during agency inspections and meetings For assistance, please contact Natalie VanLiew at email@example.com.