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Impact Oriented

Client Focused, Community Engaged, Environmentally Driven

Creative Solutions

Innovative Thinking Leading to Practical Results

Expert Guidance

Trusted Expertise For Proven Solutions.

Service Areas

Our Solutions to Today’s Challenges

Environmental

Providing high-quality environmental solutions, from environmental due diligence to remedial design and execution.

Water

Providing comprehensive water resource services for public, private, and federal clients.

Compliance

Meeting our clients’ regulatory compliance needs by leveraging our expertise to provide practical solutions.

Site Engineering

Engineering is at our core with civil design, geotechnical, and construction management solutions.

Market Sectors

We serve a diverse group of markets with innovative solutions tailored to the unique challenges of each sector.

Proven Experience

What Clients Are Saying About Us

Terraphase has played a critical and timely role in my M&A work, most recently completing environmental due diligence (property conditions and regulatory compliance assessments) on multiple manufacturing sites with legacy environmental issues, over 5 states and across the border in Mexico, all on an expedited time schedule. Chris Voci and his team also have provided critical analysis and cost estimation when “last minute” environmental complications needed to be explained and creatively managed to assure a closing. They are practical problem solvers and understand risk management in the context of business transitions.
Terraphase also has a bevy of experts across the country who have provided consulting and trial expert assistance on the litigation and Brownfields/site remediation side of our practice. I am grateful that there always seems to be a reliable sounding board on staff when I have been confronted with emerging problems, such as cost effectively removing 1,4 dioxane or 1,1 TCA, sourcing PFAS detected at client facilities, accounting for zinc in stormwater discharges, or explaining the appearance of ketones during in situ remediation of a solvent plume. A complete shop, and a “go to” resource in my practice.
Tim BergèrePartner, Armstrong Teasdale LLP
“Terraphase has provided high quality professional services to LBNL with prompt responses to questions, and excellent cost and schedule management.”
Project Manager
“Thank you for providing stellar customer service in regards to concerns on the treatment plant and reservoir property acquisitions. You have been responsive and adaptive in designing, modifying, and performing your field work. On the treatment plant, you’re providing near-instant feedback to directly address management’s specific concerns about this property. On the reservoir site, you’re coordinating efficiently with the leads for several other activities (including survey, appraisal, and geotechnical explorations) to collect the information needed and to minimize duplicative efforts. I’m not quite sure how you’re managing to do it, but you are – and we appreciate it!”
Utility Compliance Manager
“We rely upon Terraphase to conduct significant technical analysis and report production as well as overall guidance in the handling of the projects at large. Our facility has been very satisfied with the quality, timeliness and cost-effectiveness of their work. I recommend them without reservation.”
Industrial Facility Manager
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East view of Lawrence Berkeley National Laboratory in Berkeley Hills.
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Engineer and clients shaking hands in an industrial facility.

Market Sectors

What Clients Are Saying About Us

Thank you for your exceptional customer service regarding the treatment plant and reservoir acquisitions. Your responsiveness, adaptability, and coordination have been invaluable in addressing concerns, streamlining efforts, and providing timely feedback. We truly appreciate it!

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Sustainability

We are committed to protecting resources, supporting communities, and advancing sustainability.

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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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