We dig into the latest industry insights so you don’t have to. Browse recent articles to catch up on regulatory news, technical updates, and best practices that matter.
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.
Andrew Pawlisz, DABT
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.
Margaret Caligaris
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.
Brian Robeson
Andrea Loveland
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.”
Kelly Birkenhauer, PG, CP
Rajib Sinha, PE
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.
Zorica Cvijovic, PhD
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.
Stephen Walls, PE
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.
Erin Novini, PE
Chris Schultz, PE
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.
Marie-Agnès Tellier, PhD
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.
Jay Christopher
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.
Kelby Wilkison, PE


Receive the latest technical and regulatory updates in your inbox.

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