Service Area

California Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA) Compliance

Responsive, Practical, Defensible, Compliant.

CEQA/NEPA Compliance With Science-Driven, Defensible Impact Assessments.

Folders on a table labeled Regulations and Guidelines on top of papers with a pen and calculator

Terraphase guides clients through CEQA and NEPA compliance, providing impact analysis, mitigation strategies, and environmental documentation. We collaborate with lead agencies to develop defensible compliance pathways and complete all levels of required documentation. Our expertise includes cultural and biological resources, air quality, grading, drainage, and site engineering. We also prepare public notices, mitigation programs, and statements of overriding considerations.

Our multidisciplinary team supports projects in the following markets:

  • Education
  • Tribal trust 
  • Municipal and utilities infrastructure
  • Renewable energy
  • Industrial sites

We have assisted cities, counties, Tribes, agencies, land developers, and grant applicants in meeting their CEQA and NEPA compliance requirements.

Representative Projects

See How We’ve Made A Difference Across Diverse Industries

Meet Our

CEQA/NEPA Senior Practitioners

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Explore More About Our Comprehensive Compliance Services

Christopher Alger, PG, CHG, CEG

Senior Principal Engineering Geologist

Christopher’s Profile