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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.

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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.

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Representative Projects

See How We’ve Made A Difference Across Diverse Industries

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Palo Alto Unified School District CEQA Compliance Services

Terraphase supported a demolition and replacement project in Palo Alto, California, by providing environmental and cultural resource review services. The

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San Leandro Creek Pedestrian Bridge Debris Removal CEQA Notice of Exemption

Terraphase was engaged to support the City of San Leandro with California Environmental Quality Act (CEQA) environmental compliance for the

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Lake Chelan Community Hospital Project NEPA EA

Terraphase was engaged to provide environmental consulting and prepare a National Environmental Policy Act (NEPA) Environmental Assessment (EA) for U.S.

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Meet Our

CEQA/NEPA Senior Practitioners

Trent Wilson

Trent Wilson

Tribal Market Sector Lead, Principal Scientist
Barbara Wu Heyman

Barbara Wu Heyman

Principal Environmental Planner
Alice Hale Price, PE, ENV SP

Alice Hale Price, PE, ENV SP

Director of Bay Area Operations, Principal Engineer

Charlane Gross, MA, RPA

Charlane Gross, MA, RPA

Senior Associate Archaeologist
Meet Our Team

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© TERRAPHASE ALL RIGHT RESERVED.

Christopher Alger, PG, CHG, CEG

Senior Principal Engineering Geologist

Christopher’s Profile

Christopher Alger, PG CHG, CEG, is a Principal Engineering Geologist at Terraphase and brings over 35 years of scientific investigation, design and consulting experience in a multidisciplinary problem-solving practice that spans contaminant hydrogeology and site remediation to geotechnical engineering for landslide and slope failure studies.

In his subsurface site characterization and remediation practice, Chris has developed creative solutions to accelerate remediation, regulatory closure, and redevelopment of impaired properties in California and throughout the United States.

Chris has designed and implemented a wide range of remediation technologies, including soil vapor extraction systems for volatile chemicals, in situ fixation injection for hexavalent chromium, in situ and ex situ bioremediation, air sparging, ozone injection, groundwater extraction and treatment, dewatering systems, and excavation programs.

Chris is routinely engaged to provide expert review and opinions in peer review and litigation projects for insurance and attorney clients involved with multi-party disputes nationwide. Chris continues to provide expert services for dry cleaner litigation and resolution, superfund defense, RCRA facility operations and closure, cost recovery, and CERCLA claims. His work in this capacity has included preparing declarations, expert reports, remedial cost estimates, depositions, and other expert witness services. Chris’s geotechnical engineering work has involved mapping of Landslides and rockfalls in the San Francisco Bay Area, Yosemite National Park, and Utah’s Wasatch Range. He has served as the engineering geologist responsible for pre-construction geotechnical investigations, oversight of client and third-party residential and commercial grading projects, and geologic hazard investigations.

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