Oil and Gas | Assessment and Remediation
Environmental Due Diligence for Petroleum Assets
Trihydro provided environmental due diligence services to a confidential client acquiring over 1,500 leases of petroleum…
Oil and Gas
Helping oil and gas clients across upstream, midstream, and refining sectors navigate complex environmental and regulatory challenges.
Projects
Oil and Gas | Assessment and Remediation
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…
Oil and Gas | Permitting and Compliance
Environmental Due Diligence
Trihydro partnered with a Fortune 500 waste management firm and local environmental health & safety managers to rapidly…
Delve Articles
Oil and Gas | Air Quality Compliance
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…
Oil and Gas | Assessment and Remediation
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…
Oil and Gas | Air Quality Compliance
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…
Oil and Gas | Air Quality Compliance
EPA Redefines “Pneumatic Controllers” as “Process Controllers”
EPA has redefined “pneumatic controllers,” now “process controllers,” changing more than just the name. We explore…
Oil and Gas | Air Quality Compliance
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…
Oil and Gas | Air Quality Compliance
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…
Oil and Gas | Air Quality Compliance
New Subpart W Source Type: Drilling Mud Degassing
Since May, drilling mud degassing operators must calculate and report GHG emissions under EPA’s GHGRP Subpart W. Operators…
Oil and Gas | Assessment and Remediation
EPA Adds Nine PFAS to 2025 TRI Reporting
EPA continues to add PFAS to TRI. Find out which new PFAS have been added and what EPA’s reporting requirements will look…
Oil and Gas | Assessment and Remediation
EPA Drafts First-Ever Human Health Water Quality Criteria for PFAS
On December 19, EPA released draft human health-based water quality criteria for three per- and polyfluoroalkyl substances…
Oil and Gas | Assessment and Remediation
EPA Finalizes Restrictions on Trichloroethylene (TCE), Perchloroethylene (PCE), and Carbon Tetrachloride (CTC)
In 2024, EPA announced sweeping restrictions on trichloroethylene (TCE), perchloroethylene/tetrachloroethylene (PCE), and…
Oil and Gas | Waste Management
Class II Injection Wells: Unlocking the Hidden Value of CO2 in Oil & Gas Production
Recent advances in carbon capture and sequestration (CCS) have dramatically changed the financial impacts, both positive and…
Oil and Gas | Air Quality Compliance
California’s SCAQMD 1178 Rule and Effective Data Capture at Storage Tank Facilities
California’s SCAQMD Rule 1178 was amended to further reduce VOC emissions from storage tanks at petroleum facilities.…
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