3 tiers of blue chemical drums sit on palettes in a warehouse
2023 TSCA Watchlist: EPA Determines Trichloroethylene Represents Unreasonable Risk
EPA announced the final regulatory determination declaring TCE as having an unreasonable risk of injury to human health for 52 out of 54 conditions of use. Learn more about the scientific basis of the update as well as key changes.
Aerial view of a wetland with water and trees
New WOTUS Definition to Have Ripple Effect on Projects
The new rule, "Revised Definition of ‘Waters of the United States,’" expands the scope of federal jurisdiction under the Clean Water Act and is largely founded on the pre-2015 interpretation of WOTUS.
    • Regulatory Compliance
    • CWA
    • Navigable Waters Protection Rule
    • Wetlands
    • Streams
    • EPA
  • Liquid material being dispensed into test tube with dropper
    Implications of Low-Level PFAS Treatment Goals
    Trihydro subject matter experts discuss the implications of sub-ppt PFAS remediation goals.
    3d model of a reservoir
    5 Project Benefits of Integrating GIS and CADD
    We explore the synergies created by integrating CADD and GIS data and discuss 5 project advantages.
    Aerial photo of Cheyenne, WY
    Trihydro Announces New Cheyenne, WY Office Address
    Trihydro's new Cheyenne, WY office location offers a modern space for in-person meetings and events.
    Aerial shot of Lakewood, Colorado
    Trihydro’s Golden, CO Team Moves to New Lakewood Office
    Trihydro's Golden, Colorado team has relocated to Lakewood, Colorado.
    Former gas station site
    EPA Takes Final Action to Amend 'All Appropriate Inquiries Standard' for Phase I ESAs
    EPA has taken final action to amend the All Appropriate Inquiries Rule (AAI Rule), 40 CFR part 312, to recognize the updated ASTM International standard for conducting Phase I environmental site assessments (ESAs), ASTM E1527-21, “Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process.”
    Transportation management center
    Have Big Transportation Goals? You Need ESP.
    Event Streaming Platforms are radically changing data processing and the ability to extract data insights. We explore how ESPs are driving change in the transportation industry.
    Refinery construction
    Proposed Clean Air Act Change Focuses on Fugitive Emissions
    The EPA proposes updates to the Clean Air Act that focus on fugitive emissions and how they factor into determining whether a facility is subject to New Source Review permitting requirements.
    Woman in creek with Outside Magazine award emblem
    Trihydro Recognized on Outside Magazine's Best Places to Work List
    Trihydro is humbled to receive an honorable mention on Outside Magazine's Best Places to Work list.
    Phytoremediation planted trees
    How Sustainability Assessments Create Win-Win Scenarios in Site Remediation
    Sustainability assessments are key to successful sustainable remediation. See how they help sites maximize remediation effectiveness while minimizing environmental impacts.
    Woman using laptop
    Environmental Statistics: What ProUCL Updates Mean for Your Site
    EPA updated ProUCL, its environmental statistics software, to help perform statistical evaluation of groundwater, surface water, air, and soil data that may contain left-censored results.
    downtown Denver aerial photo
    Severe Ozone Nonattainment Status for Denver Metro/North Front Range Goes into Effect Nov. 7th
    Effective Nov. 7, 2022, the Denver Metro/North Front Range ozone nonattainment area becomes "severe" and facilities have 1 year to ensure compliance with new rules.
    Reclamation model
    AML Programs: Putting Technology to Work
    We review five technological opportunities for every abandoned mine land (AML) site to consider, from those just starting their digital journey to those already enjoying its efficiencies.
    traffic lights turning green
    Transportation Technology Grants: Moving Projects Forward
    We review three grant funding opportunities that can help fuel transportation projects.
    A grassy field with a large tree at the forefront
    Trihydro Opens Owasso, OK Office to Deliver Responsive Environmental and Engineering Services
    In opening its doors in Owasso, Oklahoma, Trihydro now has 22 offices across the country.
    Stack of paperwork
    EPA’s Proposal to Designate 2 PFAS as CERCLA Hazardous Substances is Here. What Does it Mean?
    On August 26, 2022, EPA announced the proposed designation of two types of PFAS as CERCLA “hazardous substances.”
    Aerial view of residential neighborhood
    No-Cost Grant Funding Bootcamps for Small & Mid-size Local Governments
    Small and mid-sized local governments can register for the Local Infrastructure Hub’s Grant Application Bootcamp, a program designed to demystify the grant application process.
    Biosolids land application
    PFAS in Wastewater Treatment Biosolids—Proceed with Caution
    With mounting studies showing per- and polyfluoroalkyl substances (PFAS) in biosolids, the practice of land application is under scrutiny pending technological and regulatory advancements.
    Natural gas processing plant during sunset
    TRI Reporting: What Natural Gas Processing Plants Need to Know
    In November 2021, EPA expanded the list of industrial sectors subject to TRI reporting requirements to include facilities that process natural gas. Read on to learn about what data to report.
    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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