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.
Women reviewing binder of papers
EPA PFAS Strategic Roadmap Updates: A Strong Start to 2022
Since introducing its PFAS Strategic Roadmap in October 2021, EPA has made several regulatory advancements regarding PFAS.
Andrew Pawlisz, DABT
Methane OOOOb
EPA's Proposed Methane Standards: What Should You Be Doing Now to Get Ready?
NSPS OOOOb requirements are expected in late 2022 or early 2023. Trihydro outlines six ways affected facilities can prepare for new methane standards.
Jay Christopher
Refinery turnaround
Environmental Oversight's Role During Refinery Turnaround
During refinery turnaround, an environmental oversight team ensures environmental-related matters are well managed, and can play many secondary roles to support big-picture needs.
Proposed Appendix K: Recordkeeping
We explore proposed optical gas imaging (OGI) recordkeeping requirements established in proposed changes to New Source Performance Standards (NSPS) Appendix K.
Jeremy Sell, PE
Dan Wood
OGI survey
Proposed Appendix K: OGI Survey Procedures
We dive into the optical gas imaging (OGI) survey protocol introduced in EPA's proposed changes to New Source Performance Standards (NSPS).
Jeremy Sell, PE
Proposed Appendix K: Camera Operator Training Requirements and Performance Audits
We explore the training and audit requirements introduced in Appendix K of EPA’s proposed New Source Performance Standards and Emissions Guidelines.
Jeremy Sell, PE
NSZD: A Passive Remediation Powerhouse for LNAPL
NSZD can serve as a powerhouse in subsurface LNAPL removal, often exceeding LNAPL mass removal rates of engineered systems such as pumping, air sparging, or vapor extraction.
Ben McAlexander
OGI camera operator
Proposed Appendix K: OGI Survey Equipment and Pre-Survey Operating Requirements
Appendix K seeks to establish requirements for the OGI camera, equipment, and supplies needed to complete OGI surveys.
Jeremy Sell, PE
Dan Wood
methane emissions OGI
Proposal to Standardize OGI Survey Protocols Presents Seismic Shift in Burden to the Oil and Gas Industry
Appendix K of EPA's updates to NSPS provides requirements for monitoring equipment, survey procedures, camera operator training, and recordkeeping.
Jeremy Sell, PE
PFAS sampling
PFAS Federal Regulations – Part 3: Recent Actions Affecting Industry Now, Next Year, and Beyond
In Part 3 of Trihydro's PFAS article series, we discuss the latest federal developments concerning PFAS in water, wastewater, air, waste, and commerce.
Andrew Pawlisz, DABT


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