Vibracore Sediment Sampling
Waterborne and portable vibracore systems for pre-dredge characterization, contamination assessment, and USACE regulatory compliance.
Trusted Since 1986
Vibracoring & Marine Sediment Sampling Since 1986
Precise field data for dredging, remediation, and environmental projects across the Northeast — from coastal harbors to inland rivers, Navy installations to wind energy infrastructure.
About Us
Who We Are
TG&B Marine Services specializes in vibracore sediment sampling, bathymetric surveys, and marine environmental data collection. We provide the precise subsurface information that dredging contractors, environmental engineers, and regulators rely on — from pre-dredge characterization and remediation assessment to infrastructure siting and dam removal planning.
A family-owned operation with over 40 years of industry experience, we work as trusted subcontractors to the region's leading environmental and engineering firms — including AECOM, GEI, Foth, Haley & Aldrich, GZA, and dozens more. We've built our reputation on accurate data, reliable field execution, and getting it right the first time.
Our Services
What We Do
Remediation & Environmental Sampling
Sediment cores, grab samples, porewater sampling, and bioassay-ready collection in support of Superfund, CERCLA, and state remediation programs.
Bathymetric & Hydrographic Surveys
RTK GPS-referenced depth surveys with dual-frequency sonar. Deliverables include XYZ data files, 3D contour drawings, and sub-bottom profiles.
Instrument Deployment & Recovery
DART probes, ADCP current meters, water level monitors, and porewater wellpoints — installation and recovery with precise GPS positioning.
Remote & Shallow-Water Access
Our portable catamaran platform deploys by pickup truck in 45 minutes — no boat ramp needed. Ideal for landlocked ponds, narrow rivers, and dam removal sites.
Buoy Deployments & Marine Support
Buoy installations, mooring inspections, vessel support for marine surveys, and ROV/instrument platform tending across New England and beyond.
Adaptive Solutions
Remote Access Sampling
Over the years, TG&B has continually adapted to meet the changing needs of our clients, developing new platforms and techniques to tackle a wide range of sampling challenges. Our smaller, highly maneuverable platforms are designed to collect samples in areas where access is limited and boat ramps are unavailable.
For unique situations, we can design and build customized platforms to meet your specific requirements.
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How It Works
Process Snapshot
Step 1
Collection
A core tube is vibrated into the seabed or riverbed to capture an undisturbed sediment sample.
Step 2
Retrieval
The sealed sample is carefully lifted, capped, and secured for transport.
Step 3
Delivery
Samples are carefully packaged and delivered to certified analytical laboratories for testing and reporting.
The Fleet
Our Fleet of Vessels
Specialized boats and platforms equipped for sampling in any environment.
- 25' Parker — Seaquel
- 25' Carolina Skiff — Coring Carolina
- 12' Lund — Lulu
- 10' & 14' Inflatables
Where We Work
Project Footprint
From coastal New England harbors to inland Superfund rivers — TG&B has operated across the region for four decades.