CLEAR FILTER
Class VI Well Permit Approvals Accelerate as States Gain Primacy
Class VI Well Permit Approvals Accelerate as States Gain Primacy
Class VI well permit approvals have increased as more states gain primacy over the application process. We share updates about states that have or are pursuing Class VI primacy in our latest Delve.
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Texas Legislature Approves Billions for Water Infrastructure
After declaring securing water funding an emergency for Texas, Governor Abbott secures $10 billion in funding for Texas' water infrastructure, supporting water infrastructure and supplies for the next 50 years.
US Supreme Court Ruling Narrows NEPA’s Scope
US Supreme Court Ruling Narrows NEPA’s Scope
We discuss the U.S. Supreme Court’s recent ruling in Seven County Infrastructure Coalition v. Eagle County, Colorado, and how it narrows the scope of judicial review under NEPA.
Delve: PFAS Under New EPA
Outlook on PFAS Under the New EPA
While the new administration continues to focus on PFAS, the pace of related rulemaking has slowed compared to 2024. We discuss where PFAS stand with the new agency.
Methane Tax Uncertainty
How Oil and Gas Companies Should Prepare for Methane Tax Uncertainty
The discontinuation of the WEC has created a void in understanding how methane taxes will be applied. We discuss proactive measures for oil and gas companies to stay prepared and compliant.
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EPA Issues Updates to Final PFAS MCLs
The EPA has issued important updates to final Maximum Contaminant Levels (MCLs) for six per- and polyfluoroalkyl substances (PFAS). The updates reduce the number of PFAS MCLs, extend compliance deadlines, and more.
Colorado Regulation 7: Understanding Colorado's MFCE Regulations
Colorado Regulation 7: Understanding Colorado's Midstream Fuel Combustion Equipment (MFCE) Regulations
A milestone reporting deadline is coming up in June for Colorado midstream operators that addresses fuel combustion equipment GHG emissions. We cover key components of these new reporting requirements for Colorado midstream operators.
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EPA Redefines “Pneumatic Controllers” as “Process Controllers”
EPA has redefined “pneumatic controllers,” now “process controllers,” changing more than just the name. We explore the new definition's implications for affected facilities.
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NSPS OOOOb & OOOOc Compliance for Gas Well Liquids Unloading
The final rule for NSPS OOOOb and OOOOc aims to reduce flared or vented gas during liquids unloading from gas wells. We discuss gas well liquids unloading and how to comply with the new NSPS requirements.
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Subpart W: Crankcase Venting
Engine crankcase venting GHG emissions must be reported for the first time under Subpart W of EPA’s GHGRP. We discuss Subpart W updates, reporting requirements, and calculation methodologies.
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New Subpart W Source Type: Drilling Mud Degassing
Since May, drilling mud degassing operators must calculate and report GHG emissions under EPA’s GHGRP Subpart W. Operators can calculate emissions based on three methodologies. Our Delve covers Subpart W updates, what this means for operators, how to calculate emissions, and key deadlines.
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How Recent and Proposed Policy Changes Could Impact CCUS Projects
We discuss potential CCUS funding changes, agency changes that may impact CCUS projects, and potential new legislation for CCUS.
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Minimizing Agency Comments for Class VI Permit Applications
Learn about various strategies and tools to reduce RAIs and streamline the Class VI permit application process.
    • CCUS
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    PFAS in Colorado: Research, Regulations, and Real-World Experiences (Hybrid Event)
    Join experts to learn more about the latest developments in PFAS regulations, health effects, assessment, remediation, research, and legal aspects.
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    HUD Updates Minimum Property Standards for Floodplains to Include 2-Foot Freeboard Requirement
    Under HUD’s updated FFRMS requirements, certain newly constructed homes must now include a 2-foot freeboard for added flood protection. This will impact prospective first-time homebuyers seeking Federal Housing Administration loans and mortgage insurance.
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    EPA’s PFAS in Biosolids Draft Risk Assessment Targets Land Application Hazards
    We explore EPA's draft risk assessment of PFAS in biosolids and its possible regulatory impacts.
    EPA Adds Nine PFAS
    EPA Adds Nine PFAS to 2025 TRI Reporting
    EPA continues to add PFAS to TRI. Find out which new PFAS have been added and what EPA’s reporting requirements will look like in 2025.
    Human Health Criteria for PFAS
    EPA Drafts First-Ever Human Health Water Quality Criteria for PFAS
    On December 19, EPA released draft human health-based water quality criteria for three per- and polyfluoroalkyl substances (PFAS): PFOA, PFOS, and PFBS. Once finalized, these criteria will serve as a foundation for states and tribes to develop their own water quality standards.
    Restrictions on TCE, PCE, and CTC
    EPA Proceeds with Restrictions on Trichloroethylene (TCE), Perchloroethylene (PCE), and Carbon Tetrachloride (CTC)
    The EPA has announced sweeping restrictions on trichloroethylene (TCE), perchloroethylene/tetrachloroethylene (PCE), and carbon tetrachloride (CTC), impacting consumer, commercial, and industrial uses. Effective early 2025, these final rules mark a significant regulatory shift.
    • TSCA
    • TCE
    • CCUS Baseline Monitoring
    Why a Robust Shallow Subsurface Monitoring Program Matters for Carbon Sequestration
    This article explores the importance of a comprehensive shallow subsurface monitoring program in defending against false positives that could potentially shut down a project and lead to considerable financial loss.
    • CCUS
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    University of Wyoming "Trihydro’s dedication to the communities in which they have offices is second to none. We look forward to our continued relationship with Trihydro and the opportunity to present students with quality job opportunities from a top notch company."

    Conrad Chavez, Manager, Multicultural Affairs

    When choosing an environmental and engineering partner, you expect proven expertise, consistent quality and a high overall value. Nothing less will do. You can count on these qualities from Trihydro. We welcome you to contact us or visit one of our locations.

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