Pipeline along beach in California
The Potential Impacts of Vacating Nationwide Permit 12
On April 15, 2020, the US District Court for the District of Montana vacated Nationwide Permit 12 (NWP 12) for all utility line activities.
LeakTracker Pro Webinar and Live Demo
Watch On-Demand: LeakTracker Pro Webinar & Software Demo
Watch this video for an overview of LeakTracker Pro, a software solution that provides efficient workflow, record-keeping, and reporting for OGI surveys and leak data.
Oceanview in hawaii
Supreme Court Decision Includes Groundwater Under Clean Water Act
On April 23, 2020, the Supreme Court decided in a 6-to-3 ruling that, in some circumstances, the Clean Water Act applies to pollutants that reach the sea or other navigable waterways via groundwater.
PFAS Data Webinar Recording
Webinar Recording: PFAS Data Analysis, Interpretation, and Risk Assessment
Watch this webinar recording for an in-depth look PFAS data analysis, interpretation, and risk assessment.
TENORM Delve
Decision on Montana TENORM Limit Delayed
Montana DEQ proposed new regulations for managing the disposal of TENORM...
    • Waste
    • Radioactive
    • TENORM
    • Department of Environmental Quality
    • DEQ
    • Montana
    • Delve
    • 2019
  • 172 PFAS Compounds Included for 2020 TRI Reporting Year
    Starting with reporting year 2020, companies must track and compile data on 172 PFAS compounds to comply with Toxics Release Inventory (TRI) reporting requirements.
    • PFOA
    • PFAS
    • TRI Reporting
    • TRI List
    • Safety Data Sheet
    • SDS
  • 5 Key TSCA Updates
    5 Key TSCA Updates
    There has been a lot of activity regarding the Toxic Substances Control Act (TSCA) over the last several months.
    Water wastewater system in Texas
    Utility Risk and Resilience Planning Under the American Water Infrastructure Act
    If your organization previously conducted a vulnerability assessment and ERP under the Bioterrorism Act, it’s a good starting place for assembling the more comprehensive RRA required by AWIA.
    • EPA
    • Emergency Response Plan
    • Risk and Resilience Assessment
    • Bioterrorism Act
    • AWIA
  • EPA to Change Types of Construction That Can Begin Before Receiving an Air Permit
    EPA changes interpretation of "begin actual construction" under the New Source Review permitting program.
    • Air Permitting
    • New Source Review
    • Clean Air Act
    • EPA
  • PFAS Site Characterization and Remediation Recording
    Webinar Recording: PFAS Site Characterization and Remediation
    Watch this webinar recording for an in-depth look at PFAS site type considerations, sampling, and fate and transport with regard to contaminated site investigation and cleanup.
    Refinery on a sunny day
    Using EPA’s Self-Disclosure Program as a Response to COVID-19
    What is the EPA’s “self-disclosure policy” and how can companies use it during the COVID-19 pandemic?
    • Self-Disclosure
    • Audit Policy
    • EPA
    • Coronavirus
    • COVID-19
  • hazardous waste barrels in storage
    EPA Finalizes TSCA CDR Amendment and Extends Reporting Deadline
    • TSCA Inventory
    • Regulatory Compliance and Reporting
    • CDR Reporting
    • TSCA
  • Lighten Resource Pressure by Collecting Defensible Data
    Producing quality and defensible data decreases the likelihood of having to spend time and money either redoing a sampling event or recollecting data.
    • Data Defensibility
    • Data Quality
    • Data Management
    • Environmental data management
    • DQOs
    • Data Quality Objectives
  • LDAR sampling at industrial facility
    Coronavirus Roundup: How is EPA Addressing Enforcement for Permit Deadlines and Other Matters?
    • Coronavirus
    • COVID-19
    • EPA
  • Trihydro COVID-19 Response
    We are truly experiencing a unique situation that our communities, industry, nation and world have not experienced before. “Our Safety is My Responsibility” has been the central tenet of our safety culture at Trihydro Corporation.
    • COVID-19
  • 2020 TSCA reporting
    WATCH NOW: How to Best Prepare for 2020 CDR Reporting
    Watch these information videos for key tips to prepare for the 2020 TSCA CDR reporting cycle.
    Vapor intrusion
    California Releases Long-Awaited Vapor Intrusion Guidance
    California recently released its long-awaited Draft Supplemental Guidance for Vapor Intrusion (VI) for public comment.
    • EPA
    • California
    • Vapor Intrusion
    • California Water Boards
    • Regulatory Compliance
    • DTSC
  • chemical manufacturing and processing plant
    March 27th Deadline for Companies to Self-Identify Under TSCA
    EPA established a March 27, 2020 regulatory deadline for companies to self-identify if they manufacture or import, or ceased manufacture or import of, any of the 20 high-priority substances about to undergo risk evaluation.
    • TSCA
    • EPA
    • Regulatory Compliance
  • Wetlands in sunshine
    New Regulations Narrow the Reach of the Clean Water Act
    The new Navigable Waters Protection Rule narrows federal jurisdiction under the CWA.
    • Regulatory Compliance
    • CWA
    • Navigable Waters Protection Rule
    • Wetlands
    • Streams
    • EPA
  • TSCA chemical containers
    What to Expect: Reformed TSCA Requirements for the 2020 CDR
    The 2020 CDR cycle begins June 1, 2020 and is unlike past quadrennial reporting cycles because it is the first to occur under the reformed TSCA.
    • Regulatory Compliance
    • TSCA
    • CDR
    • EPA
  • UW_Institution_Logo
    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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