CLEAR FILTER
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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
    • Water infrastructure graphic
    Texas Eyes Billions for Water Infrastructure
    Texas could see billions in water infrastructure investments after Gov. Greg Abbott declared water security funding an emergency item for lawmakers to consider.
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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 Finalizes 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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    Oklahoma DEQ Proposes Water Rule Updates to Align with New EPA Regulations
    Learn about the Oklahoma DEQ’s proposed updates to their water regulations that more closely align with EPA rules, address public feedback, and support carbon sequestration primacy.
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    What You Need to Know About the EPA’s Methylene Chloride Ban
    Learn how methylene chloride has been regulated in the past, the implications of the rule, and the steps to stay compliant with the new EPA regulation.
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    Traveler Information Messages – Creation, Delivery, and Standards
    Join us for a webinar exploring the critical role of Traveler Information Messages (TIMs) in enhancing road safety and improving traffic flow.
    • Connected Vehicle
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    Navigating New State and SEC Environmental Disclosure Regulations
    New state and SEC environmental disclosure regulations require companies to disclose environmental impacts. This article covers these changes and how businesses can stay compliant.
    • Ohio EC
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    Toxics Release Inventory PFAS Categories Expand Reporting Complexity
    In early October, the EPA proposed a new rule for the Toxics Release Inventory (TRI) that could change the way we currently report on PFAS. Currently, TRI requires individual reporting on 196 PFAS, but the new proposal introduces the concept of PFAS categories. We dive into the impact these changes could have on current TRI reporting and compliance if the proposal is approved.
    • Oklahoma Environmental and Engineering Services
    • ENR 2024 Top Environmental Firms
    ENR Names Trihydro a Top 200 Environmental Firm for the 19th Year in a Row
    Engineering News-Record (ENR) ranks Trihydro #128 on its Top 200 Environmental Firms list for 2024.
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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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