Sediment Management & Marine Sciences


Providing innovative, cost-effective solutions for managing complex environmental issues in aquatic settings.

Have a challenging sediment issue that needs a holistic approach to a solution?

NewFields’ experts can help you overcome challenging issues in aquatic environments to achieve your business objectives and maintain regulatory compliance. Our sediment programs require a variety of technical disciplines to address various media, complex site exposure pathways, and multiple contaminants of concern. We provide the technical expertise and experience to meet our clients’ objectives in a cost-effective manner. Services include:

  • Aquatic Habitat Assessment, Monitoring, and Resource Management
  • Contaminated Sediment Management
  • Natural Resource Damage Assessment
  • Human Health and Ecological Risk Assessment
  • Dredged Material Management
  • Chemical Fate & Transport
  • Unmanned Aerial System (UAS) and Unmanned Surface Vessel (USV) Operations
  • Remedial Investigations/Feasibility Studies (RI/FS)
  • Strategic Planning
  • Site Assessment & Characterization
  • Source Identification/Allocation
  • Seafloor Investigation and Monitoring
  • Sediment Profile Imaging
  • Geospatial Analysis and Modeling
  • Fish & Shellfish Studies
  • Remedial Action/Oversight


Timothy Hammermeister
Senior Scientist
Edmonds, WA
[email protected]

John Nakayama
Senior Environmental Scientist
Edmonds, WA
[email protected]

Donald Gunster
Environmental Scientist
Rockland, MA
[email protected]

NewFields Sediment Management and Marine Sciences

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