Strategic Partners

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Sunrise surveying at the Larkspur Ferry Terminal

In order to better serve our clients, we have established partnerships with numerous Bay Area professionals who have outstanding reputations and who compliment our field teams.


Tom Tucker (PLS 4460)
Tucker and Associates, Calistoga, CA

Tom was at the forefront of using survey-grade GPS in the State of California. Tom also specializes in setting control in remote areas as well as establishing tidal-geodetic datum relationships.


Herman Holder Hydrography
Vacaville, CA

Mr. Holdener has been surveying in Bay Area waters for over 25 years and provides helmsman support during extremely busy periods.


Wetlands and Water Resources
San Rafael, CA

WWR has been a leader in Wetland restoration efforts within the Bay Area for over 20 years. WWR firmly believes in the collection of field data as the key to restoration success. EDS and WWR have been developing field data collection protocols for all types of San Francisco Estuary environments for over 15 years.


Roger Leventhal PE
FarWest Restoration Engineering, Oakland, CA

EDS has been working with Roger for over 10 years, providing condition and monitoring data for his very successful resume of habitat restoration and hydraulic engineering projects throughout the State of California.