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.
There has been another change in the effective date of the Risk Management Program (RMP) rule revisions and several other actions taken to delay, modify, or eliminate the RMP rule revisions. On March 13, U.S. EPA Administrator Scott Pruitt »
The State of Illinois has received final authorization from the United States Environmental Protection Agency (USEPA) for certain changes to the state's hazardous waste program under the Resource Conservation and Recovery Act (RCRA). Periodic »
Trinity Consultants, Inc.® (Trinity), an international environmental consulting firm that specializes in industrial air quality issues, announces that Mr. Brian Holland, Senior Scientific Software Specialist/Meteorologist has earned the »
The new ISO 14001:2015 standard incorporates several new themes as well as introduces a new organizational structure for environmental management system (EMS) design and implementation. Perhaps the most significant theme is the need to incorporate »
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.
On November 25, 2014, the U.S. EPA proposed to strengthen the National Ambient Air Quality Standards (NAAQS) for ground-level ozone. The current primary ozone standard (finalized in 2008) is 75 ppb. Two new NAAQS for ozone have been proposed, a »
On November 12, 2014, the Oregon Department of Environmental Quality (DEQ) proposed temporary revisions to its air quality greenhouse gas (GHG) permitting rules to address the recent U.S. Supreme Court ruling on GHG permitting. Specifically, DEQ »
The Oregon Department of Environmental Quality (DEQ) proposed temporary revisions to portions of its air quality regulations to accommodate the recent Supreme Court decision on greenhouse gases (GHGs). In a June 23, 2014 ruling, the U.S. Supreme »
On June 16, 2014, the Oregon Department of Environmental Quality (DEQ) proposed various updates to its air quality permitting rules and related emission standards. DEQ’s proposal will streamline, reorganize, and update the air quality permit rules, »
DEQ Proposes Incorporation of Various Federal Standards. The Oregon Department of Environmental Quality (DEQ) recently proposed to align Oregon rules with changes to federal air quality regulations. Specifically, DEQ’s proposal would adopt the »
The CFP applies to entities that import, produce, sell, supply or offer certain regulated transportation fuels for sale in Oregon. Entities that are subject to the Oregon Clean Fuels Program (CFP) must submit an application for registration to the »
On July 1, 2011, EPA signed the Deferral for CO2 Emissions from Bioenergy and Other Biogenic Sources under the Prevention of Significant Deterioration (PSD) and Title V Programs. According to the pre-publication copy of the rule currently available »
On April 21, 2011, the Oregon Department of Environmental Quality (DEQ) adopted new PM2.5 and greenhouse gas permitting rules. These rules replace the temporary rule that DEQ adopted on August 19, 2010. For sources permitted after May 1, 2011, an »
The Oregon Department of Environmental Quality (DEQ) has recently proposed a number of changes to its air permitting rules to incorporate PM2.5 and greenhouse gas (GHG) permitting into its New Source Review (NSR) and Title V permitting programs. For »
The Oregon Department of Environmental Quality (DEQ) proposed general air permits and/or permit attachments for the following source categories:Perchloroethylene Dry Cleaners (permit)Stage I and Stage II Gasoline Dispensing Facilities (permit and »
The Oregon Department of Environmental Quality (ODEQ) is allowing an opportunity for public comment on the Greenhouse Gas (GHG) Emissions Quantification Methodologies (EQMs) recently released by the Western Climate Initiative (WCI). ODEQ plans to »
Like many state agencies, the Oregon Department of Environmental Quality (ODEQ) had initially intended to delay the implementation of the MACT Hammer for affected sources under Boiler MACT until EPA issues the revised Boiler MACT standard. However, »