In Situ Soil Neutralization and Stabilization
Trihydro implemented a cost-effective in situ soil neutralization and stabilization system to address residuum and low pH…
Oil and Gas
Helping oil and gas clients across upstream, midstream, and refining sectors navigate complex environmental and regulatory challenges.
Projects
Pipeline Release Emergency Response
When a used oil pipeline release occurred, Trihydro provided emergency response assistance, including supporting…
Environmental Due Diligence for Petroleum Assets
Trihydro provided environmental due diligence services to a confidential client acquiring over 1,500 leases of petroleum…
Marine Terminal Groundwater Control System Design and Installation
A refinery in a sensitive marine environment was impacted by LNAPL and dissolved-phase petroleum hydrocarbons. When asked to…
Environmental Due Diligence
Trihydro partnered with a Fortune 500 waste management firm and local environmental health & safety managers to rapidly…
Delve Articles
How 2025 is Shaping CCS Project Developments in 2026
As regulatory and funding dynamics from 2025 carry into 2026, carbon capture and storage (CCS) project development in the…
What EPA’s “Compliance First” Approach Means for Regulated Communities
EPA has adopted a new enforcement strategy that directs enforcement staff to take a “compliance first” approach to all…
EPA Finalizes Deadlines for Emissions Reduction Rules
The EPA issued an interim final action extending compliance deadlines under NSPS OOOOb, NSPS OOOOc, and the Super Emitter…
EPA Proposes Cuts to GHG Reporting Requirements
On September 12, 2025, the U.S. Environmental Protection Agency (EPA) issued a proposed rule to permanently eliminate most…
EPA Aims to Scale Back PFAS Reporting Requirements
The U.S. Environmental Protection Agency (EPA) is proposing to scale back reporting requirements for per- and…
Outlook on PFAS Under the New EPA
While the new administration continues to focus on PFAS, the pace of related rulemaking has slowed compared to 2024. We…
How Oil and Gas Companies Should Prepare for Methane Tax Uncertainty
The discontinuation of the WEC has created a void in understanding how methane taxes will be applied. We discuss proactive…
EPA Issues Updates to Final PFAS MCLs
The EPA has issued important updates to final Maximum Contaminant Levels (MCLs) for six per- and polyfluoroalkyl substances…
Colorado Regulation 7: Understanding Colorado’s Midstream Fuel Combustion Equipment Regulations
A milestone reporting deadline is coming up in June for Colorado midstream operators that addresses fuel combustion…
EPA Redefines “Pneumatic Controllers” as “Process Controllers”
EPA has redefined “pneumatic controllers,” now “process controllers,” changing more than just the name. We explore…
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…
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…
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