Patrick has more than two decades of experience in environmental permitting and compliance, as well as habitat restoration and mitigation. Tennant is well-versed in environmental documentation for licensing and permitting of projects, including Environmental Impact Reports (EIRs) related to the California Environmental Quality Act (CEQA) and Environmental Impact Statements (EIS’s) in regard to the National Environmental Policy Act (NEPA).

His experience also includes the development and implementation of a centralized field database system for environmental compliance data and mapping, which is now utilized as standard for Southern California Edison. He offers extensive knowledge of the Endangered Species Act, Sections 401 and 404 of the Clean Water Act, and California Department of Fish and Wildlife permitting.

In addition to environmental compliance, Patrick brings experience in watershed programs, water utility projects, and marine and coastal programs.  He has extensive experience in wetlands and riparian systems, both in creation of mitigation wetlands and management of wetlands for water quality treatment.  He has more than 20 years of experience in habitat restoration, endangered species management, and environmental policy experience.  Patrick spent a decade managing environmental field programs, drinking water compliance monitoring, and reclaimed water initiatives.

Before joining ESA, Patrick served as senior manager of mitigation and restoration for Southern California Edison where he oversaw compliance for the $3.2 billion Tehachapi Renewable Transmission Project (TRTP), 170 miles of 500kv transmission lines bringing clean renewable power to the Los Angeles Basin.

Patrick holds a Master of Science in environmental studies from California State University, Fullerton and his Bachelor of Arts in environmental biology from California State University, Northridge.