- Philadelphia, PA
- Ridgeland, MS
- Roanoke, VA
- Oakland, CA
- Ridgeland, MS
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 provides dispersion modeling, permitting, and compliance support for coastal operations in the Outer Continental Shelf, Deepwater Ports, and liquefied natural gas terminals.
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 prepares hundreds of air quality compliance reports for landfills and industrial facilities across the United States on an annual basis.
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.
It is common for stationary sources to discharge visible emissions into the atmosphere. EPA has established test methodologies, including Method 9 and Method 22, to characterize the opacity of a plume. These test methods are frequently required by »
MDEQ issues daily ozone forecasts from April 1 to October 31 for DeSoto County, the Jackson Metro area, and the Gulf Coast. These forecasts keep residents and industries apprised of the current ozone conditions and alert them if an Air Quality »
In January 2019, Trinity Consultants (Trinity) acquired The Redstone Group (Redstone), a consulting services provider of international chemical control laws, and EHS auditing, compliance and permitting.Redstone has deep expertise and advises clients »
The Ministry of Environment and Urbanization (MoEU) in Turkey has implemented and enforced its own REACH-like regulation as of December 23, 2017. In this article KKDIK will be referred to as T-REACH (per English translation of KKDIK).T-REACH »
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 »
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 February 1, 2019, Maricopa County Air Quality Division (MCAQD) mailed out the 2018 emission inventory reports. If your facility received an emission inventory report, please complete the report and submit by May 13, 2019 (due date).Facilities »
Maricopa County Air Quality Department (MCAQD) is proposing changes to the following Rules:Rule 321 affecting Municipal Waste Landfills. MCAQD is proposing to change the applicability date from May 30, 1991 to July 17, 2014 and revising Section 300 »
The Disposal of Coal Combustion Residuals (CCR) from Electric Utilities Rule of 2015 finalized national regulations for the safe disposal of CCRs, including coal ash, from coal-fired power plants. The rule establishes technical requirements for CCR »
The Arizona Department of Environmental Quality (ADEQ) has extended the comment period on the proposed reissuance of the multi sector general permit (MSGP) for Stormwater Discharges associated with Industrial Activities. Comments on the proposed »
On September 11, 2018, the United States Environmental Protection Agency (EPA) signed the Regional Haze Reform Roadmap, which directs EPA staff to take certain actions to ensure adequate support for states to enable timely and effective »
The Arizona Department of Environmental Quality (ADEQ) offers a variety of programs to Arizona's businesses in order to support environmental programs at their location. One program that organizations can take advantage of which not only supports »
On April 30, 2018, the United States Environmental Protection Agency (EPA) signed the final notice to designate all remaining counties that were not previously designated in the November 16, 2017 final rulemaking as non-attainment, »
Per recent ADEQ guidance on air permitting for new sources, ADEQ will generally treat a site as "Major" if the calculated site-wide non-fugitive Potential to Emit (PTE) is within 10% of the major source threshold. For example, if the NOx site-wide »
Late last year, the Environmental Protection Agency (EPA) released a memorandum with an improved interpretation of post-project emissions under federal New Source Review Program (NSR). The estimation and management of post-project emissions under »
Maricopa County is proposing to update Rule 316 [Nonmetallic Mineral Processing] and Rule 320 [Odors and Gaseous Air Contaminants] in 2018.The County has held multiple stakeholder workshops for each of the rules and is proposing the following »
On Thursday, November 16, 2017, the United States Environmental Protection Agency (EPA) finalized the designations of 2,646 counties in the United States as attainment/unclassifiable; or unclassifiable in regards to the 2015 ozone NAAQS of 0.070 »
Some of the most challenging standards to review for purposes of regulatory air dispersion modeling evaluations are those associated with nitrogen dioxide (NO2) and the 1-hour averaging period. Regulatory agencies recognize this challenge and make »
Arizona Governor, Douglas Ducey, has proposed a new initiative, "Regulation Rollback". The aim of this initiative is to allow outdated regulations to be updated or eliminated. This would support economic growth in the state and ensure that outdated »
The Arizona Department of Environmental Quality (ADEQ) has extended the Multi-Sector General Permit (MSGP) Discharge Monitoring Report (DMR) submission deadline to help permit holders comply with the new Federal e-Reporting rule that goes into »
Meteorological data is one of the critical items needed to execute an air dispersion modeling analysis; without this data, the air dispersion models will not run. Historically, Arizona agencies have allowed the use of either one (1) year of »
On June 1st 2017, Arizona Department of Environmental Quality (ADEQ) transitioned to a paperless system for stormwater pollution prevention plan (SWPPP), construction general permit (CGP), and multi-sector general permit (MSGP) notice of intent »
The Arizona Department of Environmental Quality (ADEQ) is developing a new guidance document associated with the state's Minor New Source Review (mNSR) program to replace the current, publically available December 3, 2015 version of the »
On April 15, 2017, the Arizona Department of Environmental Quality (ADEQ) released updates to the Air Quality Modeling Guidelines for Arizona Air Quality Permits (the ADEQ Guidelines). The ADEQ Guidelines were last updated on December 1, 2015 and »
On March 20, 2017, the Environmental Protection Agency (EPA) issued further delay of effective date for the EPA's Guideline on Air Quality Models (Guideline). The purpose of the delay is to allow recently-appointed government officials an »
PCAQCD has begun the process of designing their own version of the Minor New Source Review (NSR) program which currently exists at the ADEQ and MCAQD. While no official stakeholder meetings or rule development have started the agency has developed »
On November 2, 2016, the Maricopa County Air Quality Department (MCAQD) adopted amendments to MCAQD Rule 336: Surface Coating Operations. MCAQD Rule 336 regulates volatile organic compound (VOC) emissions from surface coating operations that are »
On October 3, 2016, the Environmental Protection Agency (EPA) published a proposed rule to revise the prevention of significant deterioration (PSD) and Title V permitting regulations that are applicable to greenhouse gases (GHGs). The proposed rule »
On September 7, 2016, the Maricopa County Air Quality Department (MCAQD) adopted amendments to MCAQD Rule 241: Minor New Source Review (NSR). MCAQD Rule 241 provides a procedure for the review of new sources and modifications to existing sources »
In a recent Risk and Technology Review (RTR) for the ferroalloy industry, the US EPA introduced a provision requiring the use of the digital camera opacity technique (DCOT), in accordance with American Society for Testing and Materials (ASTM) »
The Arizona Department of Environmental Quality (ADEQ) published a Notice of Proposed Rulemaking (NPRM) on September 9, 2016 to address the deficiencies identified by the U.S. Environmental Protection Agency (EPA) in November 2015 as part of their »
On June 27, 2016, the Maricopa County Air Quality Department (MCAQD) proposed air dispersion modeling guidelines to meet requirements set forth in MCAQD Rule 241, Minor New Source Review. Applicants subject to MCAQD Rule 241 are required to perform »
The Arizona Department of Environmental Quality (ADEQ) recently provided an overview of proposed updates to the agency's Resource Conservation and Recovery Act (RCRA) program and associated rule packages. ADEQ's goal with the proposed updates is to »
The updated International Standards Organization (ISO) environmental management standard (ISO14001:2015) incorporates many new elements to the program. One such element is the "Life Cycle Perspective", utilized to evaluate environmental aspects and »
On May 23, 2016, the Arizona Department of Environmental Quality (ADEQ) held a stakeholder meeting to address the proposed boundaries for ozone nonattainment area designations within the state, specifically focused on Maricopa County, Pinal County, »
In a recent environmental conference, Maricopa County Air Quality Department (MCAQD) held a session where they reviewed updates to the MCAQD Adopted rules which were finalized on February 3, 2016 to give context to new guidance documents and rule »
The new Arizona House of Representative House Bill 2337 proposes amendments to current law (A.R.S. § 41-1009) language to require an agency to give a regulated source an opportunity to correct deficiencies if the source is unsure that it meets any »
Arizona Department of Environmental Quality won a case with $1.3 in civil penalties against a UST (underground storage tank) owner, which can be found here, establishing that despite overhaul of the State UST Laws in 1997, leaking USTs can be »
The Arizona Department of Environmental Quality (ADEQ) is now inserting the following language into all new air permit actions (i.e., revisions, renewals, etc.). Some text has been underlined to outline the new text being added."The Permittee shall »
The latest round of Maricopa County Air Quality Department (MCAQD) stakeholder meetings to discuss the upcoming rule package changes took place on January 27, 2016. One rule package discussed during the meetings was MCAQD Rule 140. MCAQD Rule 140 »
The Notice of Supplemental Proposed Rulemaking published on December 18, 2015 proposed more changes to the pending New Source Review (NSR) rules for the Maricopa County Air Quality Department (MCAQD). While many changes involved the wording of the »
The Arizona Department of Environmental Quality (ADEQ) and the Maricopa County Air Quality Department (MCAQD) have been progressing towards the finalization of their respective updated New Source Review (NSR) permitting programs in recent months.Due »
Of the four air quality agencies that operate in Arizona, two agencies, Arizona Department of Environmental Quality (ADEQ) and Maricopa County Air Quality Department (MCAQD), have proposed updates to their air quality permitting rules. The air »
On May 22, 2015, the USEPA finalized a rule requiring 36 states, including Arizona, to revise their regulations governing emissions from sources during startup, shutdown and malfunction (SSM) periods. The action specifically related to SSM events »
On August 11, 2015 the Pinal County Air Quality Control District (PCAQCD) released proposed dust control rules for the West Pinal County PM10 nonattainment area. The proposed new rules contain requirements that are substantially similar to the »
On July 23, 2015 the Arizona Department of Environmental Quality (ADEQ) released proposed revisions to their updated New Source Review (NSR) program. These newly proposed revisions address items cited in the June 29, 2015 Environmental Protection »
On June 29, 2015 the EPA released a pre-publication version of its final action on ADEQ's proposed changes to their New Source Review (NSR) program. This action will be effective 30 days after publication in the Federal Register. The action »
Five rulemakings are being proposed by the Maricopa County Air Quality Department (MCAQD) for the calendar year 2015 to address the requirements of the State Implementation Plan (SIP) for "moderate" nonattainment for the 2008 eight-hour ozone »
General Permit (GP) is a pre-approved permit that is usually more restrictive, less expensive, and requires a shorter processing time. The Arizona Department of Environmental Quality (ADEQ) issued multiple General Permits covering selected classes »
New details have been released regarding the contents and timelines for the Maricopa County Air Quality (MCAQD) State Implementation Plan (SIP) revisions and the development of new nitrogen oxides (NOx) and volatile organic compounds (VOC) 300 »
On March 18, 2015, the Environmental Protection Agency (USEPA) published a limited approval and limited disapproval of the Arizona Department of Environmental Quality’s (ADEQ) proposed revised State Implementation Plan (SIP). The primary purpose of »
Maricopa County will likely be subject to redesignation from a “marginal” nonattainment area to a “moderate” nonattainment area for the 8-hour ozone standard in July 2015. The redesignation process would begin per federal requirements if the county »
On March 10, 2015, the Environmental Protection Agency (USEPA) issued a proposed rule regarding the implementation of the 2012 PM2.5 national ambient air quality standard (NAAQS). The proposed rule provides details on how the local air agencies »
In 2014, USEPA stated they are no longer supporting the use of TANKS 4.09d (TANKS) as there are compatibility issues with certain computer operating systems. Although the model will remain on the USEPA website, USEPA is recommending the use of »
Pinal County Air Quality Control District (PCAQCD) proposes to amend existing rules pertaining to the definition of major source. The proposed revisions will align the PCAQCD definition of a major source to the Federal and State regulations, where »
During the October 30, 2014 workshop, the Maricopa County Air Quality Department (MCAQD) unveiled their latest draft of the new air quality permitting rules for minor New Source Review (NSR), which is expected to impact all sources in the county. A »
It has been indicated from various project dealings through both the Maricopa County Air Quality Department (MCAQD) and the Arizona Department of Environmental Quality (ADEQ) that the Arizona State Implementation Plan (SIP) for Minor New Source »
The Arizona Department of Environmental Quality (ADEQ) submitted multiple revisions to the Arizona State Implementation Plan (SIP) from 1998 to 2012. Supplemental submittals were also made in 2013 and 2014. USEPA is approving these SIP revisions »
In January 2013, Governor Janice Brewer signed an executive order declaring a moratorium on state rulemaking through December 31, 2014. The Arizona Mining Association (AMA) believes that there are three topics which shall proceed with rulemaking in »
The Arizona Department of Environmental Quality (ADEQ) announced on June 5, 2014 that a stakeholder group will be formed to assist in developing a plan in response to the U.S. Environmental Protection Agency’s (USEPA) Clean Power Plan by June 30, »
For facilities regulated by Maricopa County Air Quality Department (MCAQD), 2013 emission inventory reports are due on Wednesday, May 7, 2014; there are only two weeks left for submittal.For facilities regulated by Arizona Department of »
On January 15, 2014, the United States Environmental Protection Agency (EPA) proposed to approve the Maricopa County Air Quality Department (MCAQD) PM10 Five Percent Plan. With efforts from Maricopa Association of Governments (MAG), Arizona »
The Arizona Department of Environmental Quality (ADEQ) is in the process of developing a guidance policy regarding what constitutes an individual stationary source for portable source rock product facilities. The policy statement will be advisory »
Arizona Department of Environmental Quality (ADEQ) submitted a letter with documentation regarding 65 exceedances of the 24-hour PM10 standard, which occurred on multiple dates spanning from February to August 2012, at several monitoring stations »
The U.S. Environmental Protection Agency (EPA) is extending the public comment period for the proposed rule to disapprove in part and approve in part a revision of Arizona's State Implementation Plan (SIP). This will include the implementation of »
The U.S. Environmental Protection Agency (EPA) is extending the public comment period for the proposed rule to disapprove in part and approve in part a revision of Arizona's State Implementation Plan (SIP). This will include the »
The U.S. Environmental Protection Agency (USEPA) is proposing to disapprove in part and approve in part a revision of Arizona's State Implementation Plan (SIP). This will include the implementation of the regional haze program in Arizona for the »
On November 16, the Arizona Department of Environmental Quality (ADEQ) denounced the U.S. Environmental Protection Agency's (EPA) decision to impose air pollution control requirements, more strict than those proposed by the ADEQ, at several large »
On October 12, 2012, Arizona Department of Environmental Quality (ADEQ) announced their intent to sue the U.S. Environmental Protection Agency (EPA) for two key reasons. The EPA failed to take timely action on Arizona's State Implementation Plan »
The Maricopa County Air Quality Department (MCAQD) is hosting a complimentary public workshop on August 28, 2012 at 2:00 to discuss a proposed Supplemental Environmental Projects (SEPs) Policy. The workshop will be held at the department's offices »
The Maricopa County Air Quality Department (MCAQD) is responsible for drafting and finalizing air pollution control rules and ordinances, ensuring they comply with the Clean Air Act. The rulemaking process takes approximately 12 months total. During »
On August 16, Governor Jan Brewer signed an Executive Order, which established the Government Transformation Office as part of an ongoing effort to modernize and improve State government operations. By identifying best practices that eliminate »
Maricopa County and portions of Pinal County are classified as PM10 non-attainment areas. In January 2002, EPA announced approval of Arizona's plan to attain the standards for PM10 by 2006. However, the area failed to attain the National Ambient Air »
On July 2, 2012, the US EPA proposed to partially approve and partially disapprove Arizona's Regional Haze State Implementation Plan (SIP) for the first planning period which goes through July 2018. The goal of this action is to control emissions »
On May 22, 2012, the U.S. Environmental Protection Agency (EPA) declared part of western Pinal County, Arizona, to be in nonattainment for the PM10 National Ambient Air Quality Standard. The effect of this action is to establish a new PM10 »
With the public notice period having been completed on April 16, 2012, ADEQ has recently finalized the General Permits (GPs) renewals for Hot Mix Asphalt Plants (HMAP) and Crushing & Screening (C&S) Plants. As a result, ADEQ will be requiring all »
Earlier this month, ADEQ submitted to the U.S. Environmental Protection Agency (EPA) a proposed revision to the Arizona State Implementation Plan (SIP). However, the SIP revision includes rule amendments that have recently been submitted to the »
The Arizona Department of Environmental Quality (ADEQ) is proposing to issue two General Air Quality Permits for Crushing and Screening Facilities and for Hot Mix Asphalt Plants. These new permits are a renewal of the existing General Permits. The »
- Phoenix, AZ
- Phoenix, AZ
- Phoenix, AZ
- Phoenix, AZ
- Phoenix, AZ