Environmental Assessment, Permitting & Compliance Archives

EPA Withdraws Proposed Rule on New Source Review Project Emissions Accounting Revision

Effective July 21, 2025, the United States Environmental Protection Agency (EPA) has officially withdrawn its proposed rule ‘‘Prevention of Significant …

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TSCA Section 8(a)(7) PFAS Reporting and Recordkeeping

EPA has issued an eight-month extension for Toxic Substances Control Act (TSCA) reporting and recordkeeping requirements for per- and polyfluoroalkyl …

Bridging the Power Gap: Why Transmission Expansion is Critical for the Data Center Boom

The U.S. is experiencing an unprecedented data center boom, fueled by the rise of artificial intelligence (AI), cloud computing and …

Virginia Water and Wastewater Rate 2024 Report is Now Available

Keys to a successful technical impracticability evaluation are sound data collection, documentation and effective communication of site conditions and groundwater …

Development and Types of Conceptual Site Models (CSMs)

There are vast resources, including publications and guidance documents on the topic of Conceptual Site Models (CSMs), and the term …

Innovative PFAS Active In-Situ Remediation Breakthroughs

Don’t miss TRC’s presentation and workshop at the 40th Annual AEHS International Conference on Soils, Sediments, Water and Energy

EPA Signs New Rule Affecting Air Emissions from Stationary Combustion Turbines

EPA finalized the residual risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for …

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The Business Effect of the Supreme Court Ruling on the Chevron Doctrine

Decision Impacts Future of Air Quality Regulations and Compliance Processes.

Understanding 2024 TSCA Amendments for Sites With PCBs

Polychlorinated Biphenyls (PCBs) are man-made organic chemical composed of carbon, hydrogen, and chlorine atoms on the biphenyl ring.

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Environmental Assessment, Permitting & Compliance