The Oklahoma Department of Environmental Quality (DEQ) aims to make certain U.S. Environmental Protection Agency (EPA) water quality guidance state law. DEQ’s proposed changes would require the use of the copper biotic ligand model to develop site-specific copper criteria, as well as the use of fish tissue studies for selenium site-specific criteria. This Delve explains the impacts of these proposed changes and their approval process.

Recent U.S. Department of Energy (DOE) funding cuts impact carbon capture and sequestration (CCS) initiatives. We review the status of DOE funding and related CCS programs, including the 45Q tax credit program.

Trihydro opens a new Joliet, Illinois office, expanding our Midwest presence to better serve clients with engineering and environmental consulting services.

Engineering News-Record (ENR) ranks Trihydro #128 on its Top 200 Environmental Firms list for 2024.