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Class VI Underground Injection Control Permit Hero

Class VI Underground Injection Control Permit

Carbon Capture and Storage Facility
Solano County, California

Trihydro coordinated permitting, certification, and shallow subsurface baseline environmental monitoring for the Montezuma Carbon Project, a proposed regional storage complex focused on sequestering carbon dioxide (CO2).

Located northeast of San Francisco, the Montezuma Carbon Project is designed to capture and permanently store millions of tons of CO₂ each year from nearby power plants and industrial facilities.

Trihydro supported the project team, UC Berkeley, Lawrence Berkeley National Laboratory, Svante, and Kiewit Engineering, in preparing and submitting a Class VI permit application to U.S. EPA Region 9 and is also developing the California Air Resources Board site/project certification application. In addition, Trihydro assisted the project in pursuing U.S. Department of Energy grant funding.

As part of the permit process, Trihydro designed and implemented a shallow baseline monitoring program that measures atmospheric conditions, vegetation, soil gas, and groundwater at the site. The program establishes site conditions prior to CO₂ injection and, once injection begins, will provide ongoing data to help protect underground sources of drinking water under the Safe Drinking Water Act.

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