Experts in
Archaeology, Non-Invasive Subsurface Investigation, & Cultural Resource Management
Providing comprehensive archaeological investigations, near-earth subsurface mapping,
and interdisciplinary field and desktop studies.
Tremaine & Associates, Inc. is a full-service, cultural resource management (CRM) and environmental consulting company. In business since 1994, we have completed thousands of cultural Phase I, XPIs, Phase II, and III excavations and biological studies involving dozens of Native American tribes, universities, government agencies, engineering and environmental consulting firms. Our strategies and field methods are direct, pragmatic, and staged to allow complete transparency.
We use minimally invasive and nondestructive methods for detecting, mapping, and sampling surface and buried resources in all environments, including urban settings. We’ve developed both patented and proprietary methods and technologies that readily convert researched and sampled data into timely and useful information.
When employed early in project lifecycles, Tremaine will help reduce schedule, budget, and safety risks for all projects, including complex developments. Depending upon our client needs we can reduce the incidence of Change Orders, or inform Design, Planning & Construction decisions of the subsurface environment. Depending on surface conditions, we can detect and map the ground of more than 140 linear miles (225 kilometers) per day to depths of 100 feet (30 meters).
Seeing Beneath the Surface Is One of Our Specialties
We produce out-of-the-box solutions for complex projects through the integration of subsurface mapping. Our team supports clients through regulatory navigation across the full project lifecycle, including project initiation, planning, design, scoping, construction, and long-term maintenance, ensuring informed decision-making at every stage.
We operate in full compliance with CEQA, NEPA, Section 106 of the NHPA, and related regulatory frameworks, applying a streamlined and ethics-driven methodology. Our experience spans contracts with local, state, and federal agencies, with services that scale from single-site assessments to large, multi-phase infrastructure programs, supported by strong partnerships with tribal communities, public agencies, and private-sector clients.
In addition to providing conventional archaeology, cultural resources management services:
We produce out-of-the- box solutions to challenging projects with use of subsurface imaging. We help clients navigate regulatory concerns throughout the life cycle of a project, including project initiation, planning, design, scoping, construction, and maintenance.
Frequently Asked Questions
Complex heritage challenges need clear answers. Our multidisciplinary team integrates cultural resources management (CRM) and applied subsurface investigation to support confident project decisions.
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“Revealing what time has buried beneath the surface.”
See details on our Giza Plateau project
Key Differentiators
Why choose Tremaine?
Founded
1994
Headquarters
California
Global
Projects
Woman
Owned
Tremaine Qualifies for Multiple Municipal, State, and Federal Certifications.
Including Small Business and Woman-Owned Business designations. We operate in full compliance with Section 106 of the National Historic Preservation Act (NHPA), the Native American Graves Protection and Repatriation Act (NAGPRA), the California Environmental Quality Act (CEQA), and other applicable statutes. We also align our practice with current nation-to-nation agreements, programmatic agreements, and local protocols. Our archaeological methods meet or exceed regulatory requirements and are designed to streamline reviews and project delivery for developers and other stakeholders.
Discover what our customers are passionate about and how we helped make it a reality.
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Kimberly Cordero
San Diego, CA
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Richard Wyatt
Peoria, IL
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Howard Palacio
Franklin, MA
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Reliability,
From Survey to Sign-Off
Tremaine is a full-service Cultural Resource Management company.
We perform Phase I, XPIs, Phase II & III studies, and excavations.
We employ as many as 70 field technicians and specialists.