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 July 22nd, 2015, the WDNR posted guidance relating to changing the definition of "chemical process plants" in the Wisconsin Administrative Code to exclude ethanol production facilities. This change follows the Environmental Protection Agency »
On July 28, 2015, the Wisconsin Department of Natural Resources (WDNR) posted four (4) draft guidance documents for review and comment. These draft guidance documents address WDNR's new policy for regulating particulate matter with an aerodynamic »
On July 28, 2015, the WDNR published the draft Type B Registration Option Permit (ROP) and Registration Construction Permit (RCP) for public notice. The Type B RCP/ROP is a standard permit that covers facilities whose annual emissions are less than »
On May 7, 2013, the Bad River Band of Lake Superior Chippewa submitted a request to the United States Environmental Protection Agency (EPA) regarding the redesignation of the Bad River Tribal land from Class II to Class I under the authority of the »
US EPA Region 5 has announced a recent community outreach initiative to help make a visible difference in several Midwestern communities, including the Kenosha/Racine community. The US EPA is also focusing on Alton/East Alton IL, I-55 Corridor from »
Federal Reporting RemindersMarch 1, 2015* Tier II Emergency and Hazardous Chemical Inventory ReportMarch 31, 2015 GHG Emissions Report for 2014 Reporting Year(GHG Mandatory Reporting Rule)July 1, 2015 Toxics Release Inventory (TRI)*Please note »
On December 15, 2014, the WDNR Air Management Program finalized an update to the PM2.5 background concentration used in dispersion modeling. These values were updated due to the recent designation of the entire state as attaining the PM2.5 »
In an effort to simplify the air permitting process and increase operational efficiency of the department, the WDNR Bureau of Air Management undertook a permit streamlining initiative in 2013. The streamlining initiative consists of two phases. »
The WDNR Air Program is proposing to update PM2.5 background concentration used in dispersion modeling for permits. These proposed updates are motivated by the EPA April 2014 re-designation of the Milwaukee PM2.5 nonattainment area to attainment »
A previous Trinity article summarizes the June 23, 2014, the Supreme Court ruling that the "Environmental Protection Agency (EPA) lacks the authority to require air quality permits from facilities based solely on their greenhouse gas (GHG) »
In response to a petition by several industry groups, the U.S. Chamber of Commerce, and several states, the U.S. Supreme Court ruled on Monday, June 23, that EPA lacks the authority to require air quality permits from facilities based solely on »
Last fall, the Natural Resources Board approved the repeal and replacement of the outdated Wisconsin Chapter NR 150 (which was last reviewed and revised in 1987). NR 150 details guidelines for environmental analysis and review procedures so »
Effective April 22, 2014, the Environmental Protection Agency approved Wisconsin's request to redesignate the Milwaukee-Racine area (Milwaukee, Racine, and Waukesha counties) to Attainment for the 2006 24-hour average PM2.5 National Ambient Air »
On February 18, 2014, the United States Environmental Protection Agency (USEPA) proposed to grant the State of Wisconsin's request to re-designate the Milwaukee-Racine fine particle (PM2.5) nonattainment area to attainment for the 2006 24-hour PM2.5 »
Federal Reporting RemindersMarch 1, 2014Tier II Emergency and Hazardous Chemical Inventory Report March 31, 20142013 GHG Emissions Report (GHG Mandatory Reporting Rule) NOTE: Global Warming Potentials have changed, previously unsubject facilities »
Federal Reporting Reminders March 1, 2014 Tier II Emergency and Hazardous Chemical Inventory ReportMarch 31, 2014 2013 GHG Emissions Report (GHG Mandatory Reporting Rule)NOTE: Global Warming Potentials have changed, previously unsubject »
On June 27, 2013, the Wisconsin Department of Natural Resources (WDNR) released draft guidance for major sources seeking up to a one-year compliance extension to federal Maximum Achievable Control Technology (MACT) requirements. Although this »
On May 22, 2013, EPA approved revisions to the Wisconsin State Implementation Plan (SIP) to modify Wisconsin's Prevention of Significant Deterioration (PSD) program for greenhouse gases (GHG). The revisions establish emission thresholds for »
Don't forget the busy reporting season that is coming up during the first half of 2013. If you need assistance with any of these reports, please call your Trinity Consultant contact at (651) 275-9900 or email Andrea Simon at »
USEPA approved the redesignation of the Milwaukee-Racine area to attainment with respect to the 1997 8-hour ozone National Ambient Air Quality Standard (NAAQS) (84 ppb) effective July 31, 2012. The Milwaukee-Racine former nonattainment area included »
On February 15, 1995, Forest County Potawatomi Community (FCPC) submitted a request to U.S. EPA to receive recognition as a Class I area. Approval was granted in April 2008. Class I areas receive protection under prevention of significant »
As reported in Trinity's Regulatory Update eNews, USEPA finalized area designations for the 2008 8-hour ozone National Ambient Air Quality Standard (NAAQS) on April 30th for everywhere but twelve counties in Illinois, Indiana, and Wisconsin (the »
Greenhouse gas emissions are potentially subject to regulation under the Title V and Prevention of Significant Deterioration (PSD) program. For newly subject Title V sources, the initial Title V application deadline is July 1, 2012. For biogenic »
On March 6, 2012, Andy Stewart, of the Wisconsin Department of Natural Resources (WDNR), released a policy memorandum regarding the exclusion of intermittent operating units in air dispersion modeling analyses. The memo clarifies that intermittent »
Don't forget the busy reporting season that is coming up during the first half of 2012. If you need assistance with any of these reports, please call your Trinity consultant contact at (651) 275-9900 or email Angie Wanger at »
In light of the release of version 11059 of AERMET, the meteorological data processor for AERMOD, the WDNR has processed updated meteorological datasets for air dispersion modeling. These meteorological datasets contain years 2006-2010 (replacing »
On April 27 and May 24, 2011, the Joint Committee for the Review of Administrative Rules (JCRAR) suspended certain rules including:NR 404.04(3)NR 406.04(3)(e) in partNR 407.03(2)(d) in part NR 411NR 445.08(3)(c) in part and NR 445.08(6)(d) in »
On July 11, 2011, EPA published a Supplemental Notice of Proposed Rulemaking (SNPR) that proposes Federal Implementation Plans (FIPs) for Iowa, Kansas, Michigan, Missouri, Oklahoma, and Wisconsin to address emissions identified as significantly »
On April 15, 2011 the Wisconsin Department of Natural Resources (WDNR) Modeling Team Leader John Roth published a memorandum entitled Revised Approach to Dispersion Modeling for Permits. This memorandum serves as guidance for air dispersion modeling »
In the March 1, 2011 Federal Register publication, Environmental Protection Agency (EPA) announced its determination under the Clean Air Act that the Milwaukee-Racine and Sheboygan areas have attained the 1997 8-hour ozone National Ambient Air »
Wisconsin issued an emergency rulemaking, effective January 2, 2011, to incorporate Greenhouse Gases (GHGs) into the Wisconsin Administrative Code. Specifically, the Wisconsin Administrative Code is revised to define "greenhouse gases", which »
Effective July 12, 2010, EPA approved Wisconsin's request to redesignate Manitowoc and Door County to attainment for the 1997 8-hour ozone standard. Wisconsin's redesignation request included three years of data for the period of 2006-2008, »
An air permitting case in Wisconsin's District IV Court of Appeals was recently decided. The case involved a Sierra Club challenge to the Prevention of Significant Deterioration (PSD) permit issued for the Weston 4 power plant in Marathon County, »
On April 21, 2010, U.S. EPA Administrator Lisa Jackson announced the appointment of Dr. Susan Hedman as EPA Region 5's Regional Administrator. Dr. Hedman was selected by President Barack Obama to run the region which includes Illinois, Indiana, »
Recently the WDNR adopted some revisions to their existing NOx reasonably available control technology (RACT) rule NR 428 in order to aid federal approval of their rule into the Wisconsin State Implementation Plan (SIP). The revisions include a »
In late May some revisions to rules related to VOC reasonably available control technology (RACT) were adopted. Follow the links to the rulemaking orders for more information.AM-24-08 Addresses VOC RACT deficiencies identified by US EPA for certain »