Rapid OGI Monitoring for Pipeline Leak Repair and NESHAP 6B Compliance
Trihydro’s optical gas imaging (OGI) team supported a refined products pipeline operator in the Pacific Northwest after a…
Air Quality Compliance
Guiding clients through complex air quality compliance, addressing evolving Clean Air Act requirements and regulations with practical, industry-tested expertise.
Projects
Transitioning a Gas Plant from Method 21 to Appendix K OGI Monitoring (NSPS OOOOb LDAR)
Trihydro supported a midstream operator in the Permian Basin transition a natural gas processing facility’s leak detection…
Process Controller Tagging and Methane Quantification
Trihydro supported an upstream oil and gas operator in Colorado with a large-scale process controller tagging, monitoring,…
Methane Emissions Monitoring for Midstream Assets
Trihydro supported a midstream operator with a methane emissions program, combining methane emissions quantification,…
Automated Site-Specific Monitoring Plan
Trihydro worked with a Texas refinery to streamline its Refinery Sector Rule fenceline monitoring program by consolidating…
Fenceline Pro: A Solution to Fenceline Monitoring of Fugitive Emissions
In May 2014, the Environmental Protection Agency (EPA) issued a proposed rule that would further control toxic air emissions…
Petrochemical Manufacturing Facility LDAR Program Development
Trihydro assisted a large petrochemical manufacturing facility with its regulatory compliance efforts by developing a system…
Delve Articles
Colorado Regulation 30 PTAC Formaldehyde Considerations
Colorado Department of Public Health & Environment (CDPHE) Regulation 30 (5 CCR 1001-35) is the Colorado Air Quality…
EPA Proposed Changes to NESHAP Subparts HH & HHH Part 4: Methanol Emissions, Metal HAPs, and Additional Stakeholder Considerations
On April 22, 2026, the U.S. Environmental Protection Agency (EPA) proposed updates to the National Emission Standards for…
EPA Proposed Changes to NESHAP Subparts HH & HHH Part 3: LDAR Technologies, MACT Updates, and Compliance Timelines
On April 22, 2026, the U.S. Environmental Protection Agency (EPA) proposed updates to the National Emission Standards for…
EPA Proposed Changes to NESHAP Subparts HH & HHH Part 2: Source Classification, Permitting, and Compliance
On April 22, 2026, the U.S. Environmental Protection Agency (EPA) proposed updates to the National Emission Standards for…
EPA Proposed Changes to NESHAP Subparts HH & HHH Part 1: Key Changes, Compliance, and Comment Deadlines
On April 22, 2026, the US Environmental Protection Agency (EPA) proposed updates to the National Emission Standards for…
Colorado Regulation 7 Update April 2026: EG OOOOc Alignment and GHG Intensity Timeline Changes
Key Updates Colorado adopted an April 2026 revision to Regulation Number 7, Control of Emissions from Oil and Gas…
EPA Proposal Would Keep Utah’s Uintah Basin Ozone Area in Marginal Nonattainment (2015 Ozone NAAQS)
On April 23rd, 2026, The US Environmental Protection Agency (EPA) proposed to reconsider and repeal its December 2024…
Five Common Challenges in HON Rule Fenceline Data and Reporting
HON Rule fenceline monitoring often starts as a field effort. Monitoring locations are established. Sampling schedules are…
What to Watch in the First Six Months of HON Rule Fenceline Monitoring
For most SOCMI facilities, HON Rule fenceline monitoring begins on July 15, 2026. That timeline can make the early phase…
HON Rule Fenceline Monitoring is a Data Governance Challenge Not Just a Monitoring Exercise
With the U.S. Environmental Protection Agency’s (EPA’s) final Hazardous Organic National Emission Standards for…
EPA Finalizes Deadlines for Emissions Reduction Rules
The EPA issued an interim final action extending compliance deadlines under NSPS OOOOb, NSPS OOOOc, and the Super Emitter…
EPA Proposes Cuts to GHG Reporting Requirements
On September 12, 2025, the U.S. Environmental Protection Agency (EPA) issued a proposed rule to permanently eliminate most…
Trainings
Training: HON Rule Fenceline Monitoring Readiness and Execution
Trihydro’s HON Rule fenceline monitoring training is designed for facility personnel responsible for implementing,…
Training: EPA Method 21 for LDAR Compliance and Monitoring
Trihydro’s EPA Method 21 training program is designed for facility personnel involved in Leak Detection and Repair (LDAR)…
Training: Foundational and Advanced BWON Management and Compliance
Trihydro’s BWON training program is designed to support facility compliance with the Benzene Waste Operations NESHAP…
Training: Optical Gas Imaging (OGI) and Appendix K Compliance
Trihydro’s Optical Gas Imaging (OGI) training program is specifically designed for Leak Detection and Repair (LDAR) teams…