Trained on Nelson's 30+ year project history & technical library
Nelson's AI team member
US remediation · 2026
By
, Research & Reference Desk
October 28, 2026
A project reference is most useful when it explains the material, the treatment boundary and the documented outcome. Nelson's Tioga and Honolulu records show mobile thermal treatment in two different US settings: a pipeline-release site in North Dakota and a fuel-storage brownfield in Hawaii. The lesson for a new project is how to examine that evidence and identify what still needs proving at your own site.
The Tioga record describes remediation of Bakken-crude-impacted soil following a pipeline release in North Dakota. Approximately 1.2 million tons were thermally treated. The full project page and cleanup article document the site's scale and treatment story.
For an owner reviewing comparable experience, the important next questions are technical: how the affected material was identified, how feed variability was managed, how treatment records were tied to soil samples and how the intended soil outcome was verified. Large tonnage establishes delivery experience; it does not by itself prove suitability for a different contaminant or soil type.
Nelson's Honolulu project record describes 25,000 tons of hydrocarbon-impacted soil at a legacy fuel-storage brownfield, treated for commercial redevelopment. It gives US owners a different reference context from an agricultural pipeline release: a property whose next use forms part of the remediation objective.
A redevelopment team should examine how a proposal connects soil treatment with excavation limits, surrounding infrastructure, material placement and the verification needed for the intended use. A successful reference helps frame those questions, while the new site's assessment establishes the answers.
A reference for treating excavated soil is not equivalent to a reference for heating a source zone in place. Soil-only treatment also differs from a scope that includes groundwater, vapor, debris or residuals. Confirm which work the contractor performed and which work belonged to the owner, prime contractor or other specialists.
Compare contaminant classes, concentration ranges, soil properties, material quantity and operating context. Ask for the assumptions behind proposed performance and any additional testing needed to establish suitability. The strongest comparison makes the differences explicit.
What material entered treatment, and which streams were outside the scope?
Which contaminant and analytical methods defined the treatment objective?
Who delivered excavation, transport, utilities and restoration?
Which records demonstrate treated-soil performance and operating compliance?
What differs between the reference project and this site?
Treated-soil analytical results address the specified soil objectives. Operating logs show whether the plant ran within the defined conditions. Emissions measurements address the relevant operating approvals. Regulatory closure is a further decision under the applicable program, based on the complete site record.
Destruction and removal efficiency is a performance metric with a defined measurement basis. It should not be used interchangeably with percent reduction in soil concentration or treated-soil compliance. A proposal should explain which metric is being promised, how it is measured and which authority or contract requirement it addresses.
Nelson's evidence library includes independent research on thermally treated petroleum-impacted soil, including physical properties, crop trials, chemistry and field recovery. Those studies add context for planning soil restoration after treatment. They do not establish an identical outcome for every soil, climate or end use.
Read the material tested, experimental design and treatment conditions before applying a finding to a project. Keep agronomic recovery questions separate from chemical cleanup criteria and geotechnical requirements. A reuse plan may need evidence from more than one discipline.
Start with the current assessment, conceptual site model, treatment objectives and approval conditions. Define feed characterization, treated-soil sampling, residual management, operating records and the final reporting responsibilities before comparing proposals. This gives every contractor the same evidence standard.
Nelson brings 30+ years of hydrocarbon remediation experience, including documented US projects. The starting point for a new US site remains its own analytical record and constraints. Share those details so the discussion can connect relevant experience to a specific treatment and verification plan.
Project records and technical reading
Tioga project record and outcomes
Honolulu brownfield project record
Peer-reviewed soil-treatment evidence
US thermal contractor selection guide
US remediation library
Petroleum-contaminated soil treatment in the US: build the plan around the fuel profile
Contaminated soil management in the US: from excavation to an accepted destination
Discuss your US site and treatment scope
HOW WE KNOW THIS
Original Nelson guidance based on the linked public sources and approved project records. Confirm current federal, state and local requirements with qualified environmental professionals. Project references do not guarantee another site's performance, approvals or closure. Treatment and permitted disposal are site-specific options.
Nelson Environmental Remediation. Tioga pipeline spill project record. https://nelsonremediation.com/projects/tioga
Nelson Environmental Remediation. Honolulu brownfield project record. https://nelsonremediation.com/projects/hawaii
U.S. EPA. Community Guide to Thermal Desorption. https://semspub.epa.gov/work/HQ/401623.pdf
FAQ
Which US soil remediation projects has Nelson documented?
Does a past project's performance guarantee my site's result?No. Relevant references establish experience. Your material profile, treatment objectives, operating conditions, approvals and verification plan determine what needs to be demonstrated for your own project.
US remediation library
Soil treatmentCan diesel-contaminated soil be thermally treated?
Material managementIs all contaminated soil hazardous waste in the US?
Read Next
Knowledge•2026Nelson's Thermal Remediation Methods: The Global BAT Gold Standard
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Published Nelson records include the Tioga pipeline spill in North Dakota and a fuel-storage brownfield in Honolulu, Hawaii. These demonstrate mobile thermal treatment of petroleum-impacted soil in different project settings.