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Services
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EHS Management
- Auditing and Verification
- California GHG and Offset Project Verification Services
- CDP Verification and Assurance
- CFATS Compliance
- Due Diligence Support
- EHS Business Risk Management
- EHS Management Systems
- Energy Management
- NEPA and CEQA Environmental Impact Assessment
- Litigation Support
- Noise and Vibration
- Odor Analysis
- RMP PSM Support
- Tank Services
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Technology
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Training
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eLearning
Webinars
- Complimentary Webinar: Spill Prevention - Canadian Webinar Series
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Online
- Area Source Webinar Series: Equipment Leak Emission Calculations
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Online
- Complimentary Webinar: Compliance with the California Alternative Diesel Fuel Regulation
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Online
Seminars
- Complimentary Luncheon: Environmental Hot Topics in Texas
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- Victoria, TX
- Complimentary Luncheon: Recent Environmental Regulatory Activity Affecting UT Industry
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- Salt Lake City, UT
- Complimentary Luncheon: Review of SPCC, SWPPP, and ODS Requirements
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- Macon, GA
- Complimentary Luncheon: Environmental Hot Topics in Texas
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- Houston, TX
- Special Complimentary Lunch Seminar: The Future of California Air Toxics Regulation
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- San Diego, CA
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Industries
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Aerospace
For more than 20 years, Trinity Consultants has assisted facilities in the aerospace industry with regulatory compliance and environmental management issues.
Agriculture
Trinity has a long history of assisting facilities with their regulatory compliance and environmental management systems.
Chemical & Pharmaceutical
Trinity helps chemical and pharmaceutical manufacturers to achieve regulatory and environmental compliance.
Deepwater Ports, LNG Terminals,&Offshore E&P
Trinity provides dispersion modeling, permitting, and compliance support for coastal operations in the Outer Continental Shelf, Deepwater Ports, and liquefied natural gas terminals.
Electric Power
Trinity has assisted clients with nearly 500 power-related projects, offering an array of services.
General Manufacturing
Due to their nature, “general manufacturing” facilities are often faced with reviewing a wide range of regulations to determine applicability.
Government
Trinity provides a variety of services to government entities, including environmental permitting and compliance management.
Lime & Aggregates
Trinity Consultants has long been committed to assisting lime and aggregates facilities with their regulatory compliance needs.
Mining
Trinity takes pride in understanding the regulatory issues affecting our clients’ facilities and their industry.
Oil & Gas
Oil and gas facilities must contend with a variety of regulatory compliance and environmental management demands.
Petroleum Refining
Trinity helps petroleum refineries to achieve compliance with complex environmental regulatory requirements.
Portland Cement
Trinity Consultants has long been committed to assisting cement facilities with their regulatory compliance and environmental management needs.
Pulp & Paper
Trinity has extensive experience assisting the pulp and paper industry with its regulatory compliance and environmental management requirements.
Railroad
Railroads are faced with rapidly evolving state, regional, and federal regulatory framework in the United States.
Semiconductor
For more than 25 years, Trinity Consultants has assisted facilities in the semiconductor industry.
Solid Waste and Recycling
Trinity prepares hundreds of air quality compliance reports for landfills and industrial facilities across the United States on an annual basis.
Terminals
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.
Wood Products
For nearly 30 years, Trinity Consultants has assisted facilities such as those in the highly regulated wood products industry.
- News
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Federal News
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EPA Finalizes Affordable Clean Energy Rule
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On June 19, 2019, the U.S. Environmental Protection Agency (EPA) issued the Affordable Clean Energy rule (ACE). This action was finalized in conjunction with two related, but separate and distinct rulemakings: 1) the repeal of the Clean Power Plan »
State/Province News
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Proposed Revisions to Maricopa County Air Pollution Control Regulations Rule 204
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Rule 204 currently allows for the certification and utilization of emission reduction credits from permitted sources emitting PM, SO2, CO, NOX, and VOCs. Emission reduction credits that have been certified may be deposited into the Arizona »
Company News
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Trinity Consultants Acquires U.K. Ecology Firm ECOSA
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Trinity Consultants, Inc.® (Trinity), an international environmental, health, and safety consulting firm, announces that it has acquired Ecological Survey & Assessment Limited (ECOSA) of North Baddesley, Hampshire, U.K. ECOSA collaborates with »
EHS Management News
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U.S. Customs’ New Audit Policy - Checkmate in Two Moves?
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In 2016, the U.S. Customs and Border Protection (CBP) revised its importer compliance monitoring approach, although the change garnered little press. The agency's new priority involves re-focusing existing resources and using methods that more »
Technology News
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Managing LDAR Data Cost Effectively
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Leak Detection and Repair (LDAR) involves finding facility components that are leaking and fixing them. The U.S. Environmental Protection Agency (EPA) has a long history of regulating industries (such as petroleum refining and chemical »
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EPA Finalizes Affordable Clean Energy Rule
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- Media
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Environmental Quarterly
Trinity's Environmental Quarterly (EQ) magazine covers environmental regulatory developments as well as topics related to corporate environmental performance.
all issues from 2009Federal Regulatory Summaries
View our monthly digests of environmental regulatory actions published in the U.S. Federal Register, with hyperlinks to the complete Federal Register notices.
all summaries from 2011Papers & Presentations
These papers, presentations, and articles were authored by the staff of Trinity Consultants for presentation at various conferences.
all papers & presentationsVideos
View recorded webinars on important regulatory developments and their implications for the regulated community.
all videos
- About Us
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Bigger Presence, Better Service, Unmatched Air Quality Expertise
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.
- News
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DEQ Requesting Comments on Draft Recommended Procedures for Cleaner Air Oregon
Oregon Department of Environmental Quality (DEQ) continues to update its website with information surrounding the Cleaner Air Oregon (CAO) regulations finalized in November 2018. Recently, DEQ »
Oregon DEQ Releases Clean Air Oregon Prioritization Results
On March 1st, 2019, the Oregon Department of Environmental Quality (DEQ) released the Cleaner Air Oregon (CAO) prioritization results, which identified facilities in Oregon that will likely be »
Gearing up for Cleaner Air Oregon
Under Cleaner Air Oregon (CAO) rules codified in Oregon Administrative Rules (OAR) 340-245, new facilities will need to identify potential air toxics emissions and assess associated risks »
ODEQ CAO Website Resources
Oregon Department of Environmental Quality (ODEQ) has been working to update their website with tools and background information related to toxic programs in Oregon. The toxic program has »
Cleaner Air Oregon Finalized
In a unanimous vote on Thursday, November 15, 2018, the Oregon Environmental Quality Commission (EQC) approved the Cleaner Air Oregon (CAO) rules codified in Oregon Administrative Rules (OAR) »
Cleaner Air Oregon Rulemaking 2018 Proposed Rules
On June 25, 2018, Oregon Department of Environmental Quality (ODEQ), published draft 2018 Cleaner Air Oregon (CAO) rules for public comment. The 2018 proposed rules reflect changes from public »
TSCA Title VI Formaldehyde Rule Compliance Moved Up to June 1, 2018
On March 13, 2018, the United States District Court for the Northern District of California issued an order in the case of Sierra Club and A Community Voice-Louisiana vs. Scott Pruitt, which »
More news
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Cleaner Air Oregon Rulemaking 2018 Proposed Rules
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On June 25, 2018, Oregon Department of Environmental Quality (ODEQ), published draft 2018 Cleaner Air Oregon (CAO) rules for public comment. The 2018 proposed rules reflect changes from public comments received on the 2017 draft CAO rules and »
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TSCA Title VI Formaldehyde Rule Compliance Moved Up to June 1, 2018
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On March 13, 2018, the United States District Court for the Northern District of California issued an order in the case of Sierra Club and A Community Voice-Louisiana vs. Scott Pruitt, which resulted in the compliance date for formaldehyde emission »
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Draft Cleaner Air Oregon Rules Published
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On October 20, 2017, Oregon Department of Environmental Quality (ODEQ) released draft Cleaner Air Oregon rules. The draft rules and supporting documents can be found on ODEQ's website (link). The draft rules require air toxic emissions reports, risk »
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EPA Issues PCWP ICR to U.S. Wood Products Manufacturers
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On October 6, 2017, EPA announced that the Plywood and Composite Wood Products (PCWP) Information Collection Request (ICR)/survey was sent to approximately 400 facilities via certified mail. The ICR will collect information essential to the Risk and »
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Oregon Air Toxics Benchmarks Proposed Rulemaking
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On July 14, 2017, Oregon Department of Environmental Quality (DEQ) issued a proposed rulemaking regarding the air toxic ambient benchmarks codified in Oregon Administrative Rule (OAR) 340-246-0090. DEQ is proposing changes to 23 of the 52 ambient »
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Oregon Toxics Rulemaking Update and Risk Assessments
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The Oregon toxics rulemaking process and program overhaul started in April 2016 and is expected to wrap up with final rules by early 2018. Oregon Department of Environmental Quality (ODEQ) recently proposed a set of options known as the "proposed »
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USEPA Finalizes Changes to Air Quality Modeling Guidance
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On January 17, 2017, the U.S. EPA published a final rule that revises the Guideline on Air Quality Models (40 CFR Part 51, Appendix W). This publish date had established February 16 as the rule's effective date; however, the Presidential directive »
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ODEQ Air Toxics Emission Inventory Request
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Oregon Governor, Kate Brown, launched a new air toxics initiative, Cleaner Air Oregon, in April 2016. The program will develop new regulations to align industrial toxics regulations protecting human health. The program is reforming Oregon's »
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Oregon Toxics Rulemaking Update
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Oregon Governor, Kate Brown, launched a new air toxics initiative, Cleaner Air Oregon, in April 2016. The program will develop new regulations to align industrial toxics regulations protecting human health. The program is reforming Oregon's »
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Supreme Court Stays the Implementation of USEPA's Clean Power Plan
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On Tuesday, February 9, 2016, the U.S. Supreme Court granted a stay of the final Carbon Pollution Emission Guidelines for Existing Stationary Sources: Electric Utility Generating Units (Clean Power Plan) until the applicants' petitions for review »
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Oregon Agencies Increase Scrutiny of Many Industries’ Current Air Emissions of Metals
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In an April 28, 2016 letter, the Oregon Department of Environmental Quality (ODEQ) provided Oregon Governor Kate Brown a list of 316 facilities statewide that "are authorized to release chromium and other metals" within their air permits. ODEQ »
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Oregon Clean Fuels Program (CFP)
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In order to reduce greenhouse gas (GHG) emissions associated with the use of transportation fuels in Oregon, the state’s Environmental Quality Commission (EQC) recently approved rules outlining the next phase of the Oregon Clean Fuels Program (CFP). »
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Ozone NAAQS Revisions Proposed
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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 »
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DEQ Proposes Temporary Revisions to Address Supreme Court GHG Ruling
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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 »
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DEQ Plans Rule Updates to Accommodate Supreme Court Decision on GHGs
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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 »
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Oregon Proposes Numerous Updates to Air Quality Regulations
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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, »
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Various Oregon Regulatory Updates:
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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 »
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Registration for Oregon Clean Fuels Program Due June 30th – Possible Impacts to Suppliers in Surrounding States
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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 »
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Recent Changes to Oregon Air Permitting Rules
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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 »
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EPA Authorizes GHG Permitting Deferral for Biogenic Sources
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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 »
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Proposed Changes to Oregon Air Permitting Rules
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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 »
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New General Permits Available
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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 »
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Public Comment Period Open for Oregon GHG Reporting Protocols
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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 »
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MACT Hammer Implementation in Oregon
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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, »