- 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 »
On April 15, 2019, San Joaquin Valley Air Pollution Control District (SJVAPCD) hosted a workshop on amendments to District Rule 2201: New and Modified Stationary Source Review, Rule 2301: Emissions Reduction Credit Banking, and Rule 2520: Federally »
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.
In 2017, several National Pollutant Discharge Elimination System (NPDES) Stormwater General Permits expired, including: NCG030000 - Metal Fabrication NCG060000 - Food and »
Under a final rule that becomes effective January 1, 2017, OSHA will revise its requirements for recording and submitting records of workplace injuries and illnesses to require that some of »
In June 2012, the North Carolina General Assembly passed House Bill 952 (HB952) which addressed reforms to the Air Toxics Rules in North Carolina. The main purpose of the bill was to provide »
On Monday August 3, 2015, EPA finalized an historic rulemaking, the Clean Power Plan. Although the key objective of the CPP is to reduce carbon dioxide emissions by 32% from existing power »
Raleigh, N.C. - Governor Pat McCrory announced today that he has selected Donald van der Vaart as the next secretary for the N.C. Department of Environment and Natural Resources. Van »
As of January 1, 2015, the NC annual permit fees and the air permit application fees are increasing. Per the memorandum from NC Division of Air Quality the increase is based on the Consumer »
On May 1, 2014, significant rule changes became effective to the State Air Toxics Program. These rules were adopted on March 13, 2014 by the North Carolina Environmental Management Commission »
As of January 1, 2015, the NC annual permit fees and the air permit application fees are increasing. Per the memorandum from NC Division of Air Quality the increase is based on the Consumer Price Index of 1.58048%.For example if a Title V facility »
On May 1, 2014, significant rule changes became effective to the State Air Toxics Program. These rules were adopted on March 13, 2014 by the North Carolina Environmental Management Commission (EMC) and became effective as a result of no letters of »
In honor of its 45th Anniversary, CAPCA had an Off to the Races theme during the Thursday night Exhibitor Symposium and electronic racing. Each booth was given packets of “carbon credits” and CAPCA attendees that visited each exhibitor during the »
It was announced on February 11, 2014 by the Sheila Holman, Director of the Division of Air Quality, that the Department of Environment and Natural Resources would be increasing the Title V fees by the Consumer Price Index as permitted by law.The »
On December 24, 2013, U.S. EPA released an updated version of the AERMOD model, as well as the meteorological preprocessing program, AERMET.http://www.epa.gov/ttn/scram/dispersion_prefrec.htm#aermodThe new versions are not anticipated to impact »
On Dec. 13, 2013 EPA, DENR Secretary John Skvarla sent a letter to EPA requesting that they designate all townships in all counties in North Carolina to be in attainment for the 2012 annual PM2.5 standard.Sec. Skvarla wrote in the letter: "Based »
The NC Division of Air Quality (DAQ) is currently accepting public comments on several changes to the NC air toxics program, including the following: Exemptions for natural gas and propane combustion sources having a facility-wide combined heat »
In accordance with House Bill 952, facilities with emission sources subject to a MACT under 40 CFR Part 63 are no longer subject to the NC air toxics requirements. However, a permitting process is required to achieve removal of the air toxic »
SO2 Attainment StatusOn February 13, 2013, NCDAQ announced that the entire state was now in compliance with the new, much more stringent 1-hour SO2 National Ambient Air Quality Standard (NAAQS): http://www.ncair.org/news/pr/2013/so2_02132013.shtml »
Case-by-Case MACT or Subpart DDDDD MACT? Many major sources of hazardous air pollutant (HAP) emissions with boilers that will be subject to the recently signed Boiler MACT standards have previously opted to obtain "case-by-case" MACT permits in »
A new version of AERMOD (dated 12345) was released this past month. A new version of AERMET (dated 12345) was also released along with the updated AERMOD model. Modifications to the new version of AERMOD are described in Model Change Bulletin #8 »
On March 21, 2011, the U.S. EPA promulgated a new regulation known as the Identification of Non-Hazardous Secondary Materials That are Solid Waste When Used as Fuels or Ingredients in Combustion (NHSM Regulation), codified under 40 CFR Part 241 »
House Bill (HB) 952, entitled "State Air Toxics Program Reforms" was signed into law on June 28, 2012, replacing the long-standing program that was originally developed in late 1980's and implemented in May 1990. As the HB has become law, it has »
House Bill (HB) 952, entitled "State Air Toxics Program Reforms" was signed into law on June 28, 2012, replacing the long-standing program that was originally developed in late 1980's and implemented in May 1990. As it has become law, it has »
On June 28, 2012, North Carolina Governor Beverly Perdue signed legislation to reform the states air toxics program into law. The house bill previously passed the senate nearly unanimously by of a vote of 38-1 on June 21, 2012. The bill, HB 952, »
On May 1, 2012 EPA announced its final designations under the 2008 ozone standard and has agreed with NC's recommended nonattainment designations and identified only the Charlotte area in NC as in "marginal" nonattainment. In February 2012, NC »
The US EPA, in an April 12, 2012 letter to DENR Secretary Dee Freeman, outlined EPA’s next steps for implementation of the 1-hour primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2) promulgated in June 2010. In the letter »
On Febuary 29, 2012, North Carolina submitted the amended boundary recommendation for the 2008 8-hour ozone standard to the Environmental Protection Agency (EPA).The EPA notified Governor Perdue on December 8, 2011 that they intend to support North »
The North Carolina Science Advisory Board (NC-SAB) for Toxic Air Pollutants (TAP) has published a draft risk assessment recommending a 9x increase in the Acceptable Ambient Level (AAL) for arsenic and arsenic-containing inorganic compounds. The »
Discussions have begun on reform of North Carolina's Air Toxics Program. The first of several meetings geared at reform of the State Air Toxics Program was held the last week of October 2011.The meeting was scheduled at the request of Representative »
The NC Division of Air Quality (NCDAQ) is sending informational letters to owners and operators of facilities that may be required to comply with the US Environmental Protection Agency's (EPA's) new federal regulations promulgated in March 2011 that »
On June 2, 2011 the NC Division of Air Quality (NCDAQ) made a recommendation to the EPA that they postpone designation of the Wilmington area (New Hanover County) as nonattainment for SO2 until after 2012.In June 2010, the EPA adopted a more »
In March 2011, the U.S. EPA released AERSCREEN, a screening model based on the AERMOD dispersion algorithms, which is expected generally to yield more realistic concentrations than the existing SCREEN3 model, while maintaining conservatism over more »
On March 24, 2011, the U.S. EPA released long-awaited guidance on modeling approaches to demonstrate compliance or address nonattainment with the 1-hour primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2). The new 1-hour »
As discussed in our August newsletter, on July 10, 2010, the combustion (emissions) source exemption was removed from the NC Division of Air Quality (DAQ) air toxics regulations. In many cases, emissions from new and modified combustion sources »
The new Reciprocating Internal Combustion Engines (RICE) National Emission Standard for Hazardous Air Pollutants (NESHAP), 40 CFR 63, Subpart ZZZZ was promulgated on August 20, 2010 which covers RICE at major and area sources. Due to limited »
On Jan. 28, 2011, North Carolina Governor Beverly Perdue issued Executive Order Number 81 putting into effect the state’s greenhouse gas (GHG) tailoring rule. Business and environmental advocates praised the move as the right thing to do for North »
The North Carolina Rules Review Commission (RRC) approved the North Carolina Division of Air Quality's (NCDAQ's) "Tailoring Rule" under 15A NCAC 02D .0544 - Prevention of Significant Deterioration (PSD) Requirements for Greenhouse Gases (GHG) on »
On July 10, 2010, the combustion (emissions) source exemption was removed from the NC Division of Air Quality (DAQ) air toxics regulations. The combustion source exemption has been a key component of the NC air toxics regulations since the »
On June 14, 2010 Sheila Holman was named as the new director of the North Carolina Division of Air Quality (NDAQ). Sheila will replace Keith Overcash who retired at the end of June. Ms. Holman has worked at DENR since 1993 and has been deputy »
The North Carolina Environmental Management Commission (EMC) took final action at its November, 19, 2009 meeting not to proceed with rulemaking for a state greenhouse gas (GHG) inventory rule. On Sept. 22, 2009, the Administrator of the U.S. »
NC Attorney General and DAQ set guidelines for determining what constitutes “solid waste incineration”In June of 2007, the United States Court of Appeals for the District of Columbia circuit vacated EPA rules that exempted units that utilized solid »
On September 16, 2009 the EPA announced plans to review the current NAAQS (national ambient air quality standard) for ozone and make proposed revisions by December 21, 2009. EPA is expected to reduce the current 2008 ozone standard rate of 0.075 »
On August 7, 2009 [74 Fed. Reg. 39592] the US EPA proposed approval of NC’s Clean Air Interstate Rules (CAIR) into the NC State Implementation Plan (SIP). The 2009 ozone season NOx accounts of non-electric generating utility boilers in North »
On July 20, 2007, the D. C. Circuit Court vacated the National Emissions Standards for Hazardous Air Pollutants (NESHAP) for Industrial, Commercial, and Institutional Boilers and Process Heaters, formerly promulgated under 40 CFR Part 63, Subpart »
During the first half of January 2009, the NC Division of Air Quality (DAQ) will host a series of five public meetings throughout the state to present preliminary projections for 8-hour ozone non-attainment boundaries in North Carolina and seeks »