Sutter Expansion Project
Over the years we have worked on a diverse set of projects for a wide range of clients.
Find out more about some of featured projects and discoveries.
Tremaine & Associates, Inc. partners with engineering and environmental firms, universities, foundations, and government agencies as both prime and subcontractor. Alongside standard CRM assignments, we handle specialized—and frequently confidential—engagements, from mapping subsurface HAZMAT plumes and spills to supporting border security and work on DHS-protected infrastructure. Explore a brief sample of our work below.
Tremaine is monitoring construction near Business 80 and Sutter’s Fort, following a sensitivity assessment for environmental impacts. Initial findings include a cannonball, multi-colored bottles, and a complete male skeleton, confirming the presence of a suspected Gold Rush-era cemetery under the intersection of 28th and L Streets.

This project is situated just west of Business 80, east and west of historic Sutter’s Fort and known Indian Mound. TREMAINE has conducted a sensitivity assessment for the environmental impact report and completed the initial testing phase, and is now monitoring the construction. Finds thus far include a canon ball, several multi-colored bottles, and a complete male skeleton indicating the location of a long-suspected Gold Rush-era cemetery located right underneath the intersection of 28th and L Streets.
Reliability,
From Survey to Sign-Off
A full-service, cultural resource management (CRM) company.
We have performed Phase I, XPIs, Phase II and III studies and excavations involving as many as 70 field technicians and specialists.
