Hydrographic Survey & Underwater Inspections
What We Offer Dive Inspections Our certified commercial divers bring [...]
Sediment Capping
We prioritize protection where it matters most. Our sand covers, [...]
Treatability Testing
Before committing to full-scale dredging, water treatment, or sediment disposal, [...]
Water Treatment
At J.F. Brennan Company, we deliver full‑spectrum water treatment services [...]
Dewatering & Material Separation
At J.F. Brennan Company, we combine deep technical experience with [...]
Habitat Restoration
We believe every restoration project is a commitment to bring [...]
Environmental Dredging
At Brennan, we know environmental dredging isn’t just about moving [...]
