Trihydro Welcomes Reed Meriwether, Senior Engineer!
Trihydro continues to grow our water and wastewater capabilities in Texas with the addition of Reed Meriwether, P.E., Senior Engineer.
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.
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
  • 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
  • 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
  • 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
  • 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
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    Safe Vehicle Backing
    Trihydro employees drive thousands of miles per year to and from project sites. Using a vehicle spotter will help avoid injuries and accidents.
    • Heath & Safety
  • Trihydro's Leaktracker Pro Software Receives Two Technology Awards
    Trihydro was chosen to receive two awards for the development and deployment of its LeakTracker Pro software solution.
    Trihydro Receives 2019 EBJ Business Achievement Award
    Trihydro was awarded EBJ's Mid-Size Firm Business Achievement award for 2019.
    Proposed Changes to the National Environmental Policy Act
    The White House has announced proposed fundamental changes to the National Environmental Policy Act.
    • NEPA
    • environmental policy
    • EIS
    • Federal
  • Firefighters use AFFF containing PFAS
    3 Considerations When Replacing Firefighting Foams
    Aqueous film-forming foams (AFFFs) have been used for firefighting for decades, but they contain per- and poly-fluoroalkyl substances (PFAS), which have shown potential for harm to human health and the environment.
    • fluorine-free foams
    • AFFF
    • firefighting foams
    • PFAS
  • Firemen extinguish chemical fire at industrial facility
    Why Your RMP Needs to Know About Recent Rule Changes and CSB’s New Proposed Ruling
    The final rule is expected to be published to the Federal Register the week of February 10, 2020, and will become effective 30 days after publication.
    • Risk management plan
    • EPA
    • Accidental release
    • Chemical release
    • CSB
    • RMP
    • Emergency response
  • 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.

    Headquarters 307-745-7474  |  Locations