Environmental Forensics

Contaminated sediment sites reflect a complex timeline with multiple contributing sources and various transport pathways – a true environmental puzzle indeed.

Sediment contamination occurs through what is often a long and complex timeline of waste management practices, environmental releases, and variability in fate and transport properties throughout a watershed. We utilize a variety of methods to characterize both the timing and relative contributions of different sources to an area of concern and combine them in a multiple lines of evidence approach.

GSI’s scientists have extensive experience applying chemical fingerprinting methods and specialized statistical analyses and machine learning approaches for pattern recognition of chemical profiles and source apportionment. This includes the integration of multiple streams of information such as historical imagery and reverse engineering facility operations and chemistries.

Related practice areas include:

FEATURED PROJECTS

Centredale Manor Superfund Site, Rhode Island

Litigation support through multiple phases of site investigation, expert reporting and trial.

Centredale Manor Superfund Site

Rhode Island

GSI Litigation support through multiple phases of site investigation, expert reporting and trial.

Lower Duwamish Waterway (LDW) CERCLA RI/FS

Seattle, Washington

Expert work to support site-specific allocation of costs associated with cleanup of the LDW Superfund site. Advised on chemical fingerprinting, loading analyses, the timing of releases, natural resource injury, interpretation and conclusions of environmental investigations, and development of site-specific remediation strategies. This work focused on reconstructing historical scenarios for environmental releases and analyzing existing environmental data distributions in the context of current and ongoing sources and transport/fate processes for allocation.

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Graham Ansell,
PhD

Principal Chemist

Kenia Whitehead,
PhD

Senior Aquatic Scientist

Brandon Sackmann,
PhD, GISP

Senior Aquatic Scientist

EXPERT
WITNESS

ALLOCATION

ENVIRONMENTAL FORENSICS

Natural Resource Damage Assessment

Contaminated sediment sites reflect a complex timeline with multiple contributing sources and various transport pathways – a true environmental puzzle indeed.

Sediment contamination occurs through what is often a long and complex timeline of waste management practices, environmental releases, and variability in fate and transport properties throughout a watershed. We utilize a variety of methods to characterize both the timing and relative contributions of different sources to an area of concern and combine them in a multiple lines of evidence approach.

GSI’s scientists have extensive experience applying chemical fingerprinting methods and specialized statistical analyses and machine learning approaches for pattern recognition of chemical profiles and source apportionment. This includes the integration of multiple streams of information such as historical imagery and reverse engineering facility operations and chemistries.

Related practice areas include:

FEATURED PROJECTS

Centredale Manor Superfund Site

Rhode Island

GSI Litigation support through multiple phases of site investigation, expert reporting and trial.

Lower Duwamish Waterway (LDW) CERCLA RI/FS

Seattle, Washington

Expert work to support site-specific allocation of costs associated with cleanup of the LDW Superfund site. Advised on chemical fingerprinting, loading analyses, the timing of releases, natural resource injury, interpretation and conclusions of environmental investigations, and development of site-specific remediation strategies. This work focused on reconstructing historical scenarios for environmental releases and analyzing existing environmental data distributions in the context of current and ongoing sources and transport/fate processes for allocation.

Contact Us

Contaminated sediment sites reflect a complex timeline with multiple contributing sources and various transport pathways – a true environmental puzzle indeed.

Sediment contamination occurs through what is often a long and complex timeline of waste management practices, environmental releases, and variability in fate and transport properties throughout a watershed. We utilize a variety of methods to characterize both the timing and relative contributions of different sources to an area of concern and combine them in a multiple lines of evidence approach.

GSI’s scientists have extensive experience applying chemical fingerprinting methods and specialized statistical analyses and machine learning approaches for pattern recognition of chemical profiles and source apportionment. This includes the integration of multiple streams of information such as historical imagery and reverse engineering facility operations and chemistries.

FEATURED PROJECTS

Centredale Manor Superfund Site

Rhode Island

GSI Litigation support through multiple phases of site investigation, expert reporting and trial.

Lower Duwamish Waterway (LDW) CERCLA RI/FS

Seattle, Washington

Expert work to support site-specific allocation of costs associated with cleanup of the LDW Superfund site. Advised on chemical fingerprinting, loading analyses, the timing of releases, natural resource injury, interpretation and conclusions of environmental investigations, and development of site-specific remediation strategies. This work focused on reconstructing historical scenarios for environmental releases and analyzing existing environmental data distributions in the context of current and ongoing sources and transport/fate processes for allocation.

Related practice areas include:

Contact Us