Remediation, Near Surface Disposal & Long-term Stewardship

CRESP assesses, recommends and develops approaches aimed at improving the evaluation, effectiveness and efficiency of remediation and risk mitigation techniques for contaminated environmental resources. Resources include soils, ground water, surface water, sediments and biota.

Project activities range from:

  • Improving methods for characterizing contaminated environmental media
  • Monitoring the effectiveness of remediation processes and near surface disposal systems
  • Reducing uncertainty in contaminant environmental fate and transport
  • Developing improved treatment processes
  • Examines the relative risk to human, ecological and eco-cultural resources from remediation methodologies, including the effect of delaying remediationDevelops methodologies to compare the risk to receptors from different remediation practices.

CRESP also evaluates and develops approaches for more efficient and effective methods for regulatory compliance, natural resource damage assessment, end-state definition and risk communication associated with remediation and potential future use of resources.

Lead Researchers

Craig H. Benson, University of Virginia
Kevin Brown, Vanderbilt University
Joanna Burger, Rutgers University
James H. Clarke, Vanderbilt University
Michael Gochfeld, Rutgers University
Jesus D. Gomez-Velez, Vanderbilt University
Kathryn A. Higley, Oregon State University

EM Sites Impacted

  • DOE Complex
  • Hanford: Richland Operations Office and Office of River Protection
  • Oak Ridge Reservation
  • Savannah River
  • Portsmouth and Paducah
  • West Valley

Current Project Areas

Landfill Partnership Improving performance assessment, monitoring approaches, and caps/liners design for near-surface disposal facilities

Objective
To address technical issues related to on-site disposal facilities or landfills in the DOE complex that receive low-level wastes and mixed wastes from remediation and decommissioning projects and (2) to address issues pertinent to key stakeholders (US EPA, NRC, DOE, and state agencies) that influence design and monitoring of disposal facilities.

Recent Project Outcomes/Results

DOE Landfill Partnership

EM Sites Impacted

  • DOE Complex
  • Hanford: Richland Operations Office and Office of River Protection
  • Oak Ridge
  • Savannah River
  • Portsmouth and Paducah
  • West Valley

Radioecological Factors and Environmental Radiological Protection

Objective
Limit DOE EM’s environmental liability by ensuring its approach to environmental radiological cleanup is consistent with sound scientific principles and regulatory guidance. Increase stakeholder’s confidence in radiological remediation actions taken by EM through ongoing analysis.

EM Sites Impacted

  • Hanford
  • Savannah River

Evaluating Effectiveness and Endpoints for Groundwater Pump and Treat Systems

Objective
To develop and recommend a technical basis and policy framework for determining the appropriate point to transition from Pump &Treat to other means or termination of Groundwater treatment. A quantitative approach for the evaluation of groundwater pump and treat system performance and endpoints across the DOE Complex is needed given the large number of systems that are in operation and the difficulties associated with system evaluation and terminus determination.

EM Sites Impacted

  • DOE Complex
  • Hanford

All Publications: Remediation, Near Surface Disposal & Long-term Stewardship,
2006-2019 (pdf)

Highlighted Publications & Reports

CRESP Remediation and Near Surface Disposal

Yesiller, N, Hanson, J, Risken, J, Benson, C, Abichou, T & Darius, J 2019, ‘Hydration Fluid and Field Exposure Effects on Moisture-Suction Response of Geosynthetic Clay Liners’, Journal of Geotechnical and Geoenvironmental Engineering, vol. 145, no. 4, p. 04019010. https://doi.org/10.1061/(ASCE)GT.1943-5606.0002011

Suttora, L, Rosenberger, K, Benson, C & Hughes, F 2019, ‘Reducing Risk to Enable End States, Panel’, WM ‘2019, WM Symposia, Phoenix, Arizona.

Setz, M, Benson, C, Bradshaw, S & Tian, K 2019, ‘Lithium Extraction to Determine Ammonium in the Exchange Complex of Bentonite’, Geo Testing Journal, vol. 1, no. 42. https://doi.org/10.1520/GTJ20170004

Scalia, J, Benson, C & Finnegan, M 2019, ‘Alternate Procedures for Swell Index Testing of Granular Bentonite from GCLs’, Geotechnical Testing Journal, vol. 5, no. 42. https://doi.org/10.1520/GTJ20180075

Burger, J, Gochfeld, M, Kosson, DS, Brown, KG, Salisbury, JA & Jeitner, C 2019, ‘Evaluation of ecological resources at operating facilities at contaminated sites: The Department of Energy’s Hanford Site as a case study’, Environmental Research, vol. 170, pp. 452-462. https://doi.org/10.1016/j.envres.2018.12.052

Burger, J, Gochfeld, M, Kosson, DS, Brown, KG, Bliss, LS, Bunn, A, Clarke, JH, Mayer, HJ & Salisbury, JA 2019, ‘The costs of delaying remediation on human, ecological, and eco-cultural resources: Considerations for the Department of Energy: A methodological framework’, Science of The Total Environment, vol. 649, pp. 1054-1064. https://doi.org/10.1016/j.scitotenv.2018.08.232

Burger, J, Gochfeld, M, Kosson, D, Bunn, A, Salisbury, J, Brown, K, Downs, J & Jeitner, C 2019, ‘Comparing Ecological Risk between D & D Facilities and Operating Facilities at the Hanford Site – 19531, Poster’, WM ‘2019, WM Symposia, Phoenix, Arizona.

Burger, J, Gochfeld, M, Jeitner, C, Bunn, A, Downs, J, Kosson, D, Salisbury, J & Brown, K 2019a, ‘Comparing Ecological Risk between D & D Facilities and Operating Facilities at the Hanford Site – 19531, Presentation’, WM ‘2019, WM Symposia, Phoenix, Arizona.

Burger, J, Gochfeld, M, Jeitner, C, Bunn, A, Downs, J, Kosson, D, Salisbury, J & Brown, K 2019b, ‘Comparing Ecological Risk between D & D Facilities and Operating Facilities at the Hanford Site – 19531, Panel’, WM ‘2019, WM Symposia, Phoenix, Arizona.

Benson, C & Tian, K 2019a, ‘Stress-Induced Porewater Pressures in the Vadose Zone Beneath a Mixed Waste Landfill ‘, WM ‘2019, 2019 Symposia, Phoenix, Arizona.

Benson, C & Tian, K 2019b, ‘Stress-Induced Porewater Pressures in the Vadose Zone Beneath a Composite-Lined Landfill – 19001, Panel’, WM ‘2019, WM Symposia, Phoenix, Arizona.

Benson, C, Black, P, Walker, S, Rosenberger, K, Seitz, R & Brown, K 2019, ‘Interagency Community of Practice in Risk and Performance Assessment, Panel’, WM ‘2019, WM Symposia, Phoenix, Arizona.

Benson, C 2019, ‘Applying Lessons Learned on Engineered Barrier Service Life to Performance Assessment, Presentation’, WM ‘2019, WM Symposia, Phoenix Arizona.

Benson, C 2019, ‘CRESP’s Land Fill Partnership: Applied Research to Solve Challenging Problems for On-Site Disposal Facilities, Presentation’, WM ‘2019, WM Symposia, Phoenix, Arizona.

Tian, K, Benson, C, Yesiller, N & Hanson, J 2018, ‘Evaluation of a HDPE Geomembrane from a Composite Liner after 12-yr of Atmospheric Exposure’, Geosynthetics 2019, Industrial Fabrics Association International, Houston, Texas.

Tian, K, Benson, C, Yang, Y & Tinjum, J 2018, ‘Radiation dose and antioxidant depletion in a HDPE geomembrane’, Geotextiles and Geomembranes, vol. 46, no. 4, pp. 426-435. https://doi.org/10.1016/j.geotexmem.2018.03.003

Tian, K & Benson, C 2018, ‘Containing Tc-99 using a multisorbing barrier material’, Waste Management ‘18, WM Symposia, Phoenix, Arizona.

Scalia, JI, Bohnhoff, G, Shackelford, C, Benson, C, Sample-Lord, K, Malusis, M & Likos, W 2018, ‘Enhanced bentonites for containment of inorganic waste leachates by GCLs’, Geo synthetics International, vol. 25, no. 4, pp. 392-411. https://doi.org/10.1680/jgein.18.00024

Ng, G & Higley, K 2018, ‘Application of US EPA SWMM 5 to a radionuclide-contaminated urban catchment with Low-Impact Developments’, Health Physics Society 63rd Annual Meeting, Cleveland, Ohio.

Neville, D & Higley, K 2018, ‘Faster, Sharper and Open’, Cascade Chapter Health Physics Society, Olympia, Washington.

Neville, D, Condon, C & Higley, K 2018, ‘Improving Methodology for Biota Radiation Dosimetry, Poster Session’, CRESP Annual Meeting, Nashville, Tennessee.

Neville, D, Condon, C & Higley, K 2018, ‘Improving Methodology for Biota Radiation Transport’, Applicability of Radiation-Response Models to Low Dose Radiation Protection Standards, American Nuclear Society and Health Physics Society Joint Topical Meeting, Tri-Cities, Washington.

Higley, K 2018a, ‘Radiation Protection: It’s Not Just the Numbers’, Applicability of Radiation-Response Models to Low Dose Radiation Protection Standards, American Nuclear Society and Health Physics Society Joint Topical Meeting, Tri-Cities, Washington.

Higley, K 2018b, ”Integration of radiological protection of the environment into the system of radiological protection”, Annals of the ICRP, vol. 47, no. 3-4, pp. 270-284. https://doi.org/10.1177/0146645318756823

Gomez-Fernandez, M, Higley, K & Tokuhiro, A 2018a, ‘Heuristics and Machine Learning Approaches to Radiation Protection’, Health Physics Society 63rd Annual Meeting, Cleveland, Ohio.

Gomez-Fernandez, M, Higley, K & Tokuhiro, A 2018b, ‘Heuristics and Machine Learning Approaches to Diagnosis and Prognosis’, Spring 2018 E. Dale Trout Meeting of the Cascade Chapter of the Health Physics Society, Portland, Oregon.

Elder, C & Benson, C 2018, ‘Performance and economic comparison of PRB types in heterogeneous aquifers’, Environmental Geotechnics, pp. 1-11. https://doi.org/10.1680/jenge.17.00063

Condon, C, Neville, D & Higley, K 2018, ‘Site Specific Environmental Fate and Transport of Radionuclides Through Field Work’, CRESP Annual Meeting, Nashville, Tennessee.

Condon, C & Higley, K 2018, ‘Sectional 3D Model Development for the Reference Tree’, Health Physics Society 63rd Annual Meeting, Cleveland, Ohio. http://hps.org/documents/2018_annual_meeting_program.pdf

Burger, J, Kosson, D, Powers, C & Gochfeld, M 2018, ‘An Information Template for Evaluating the Relative Priority of Remediation Projects that Pose a Risk to Receptors – 18674’, WM’2018, WM Symposia, Phoenix, Arizona. http://toc.proceedings.com/40439webtoc.pdf

Burger, J, Gochfeld, M & Jeitner, C 2018, ‘Risk valuation of ecological resources at contaminated deactivation and decommissioning facilities: methodology and a case study at the Department of Energy’s Hanford site’, Environmental Monitoring and Assessment, vol. 190, no. 8, p. 478. https://doi.org/10.1007/s10661-018-6866-1

Benson, C, Albright, W, Waugh, W & Davis, M 2018, ‘Field Hydrologic Performance of Earthen Covers for Uranium Mill Tailings Disposal Sites on the Colorado Plateau’, DOE-LM Long-Term Stewardship Conference, Grand Junction, Colorado. https://www.energy.gov/sites/prod/files/2018/10/f56/Benson-Field-Hydrologic-Performance.pdf

Benson, C 2018a, ‘Water Balance Covers for Waste Containment: Engineering with Unsaturated Soils from Theory to Practice’, Dr. Arthur T. Corey Distinguished Lecture Series, Colorado State University, Fort Collins, Colorado.

Benson, C 2018b, ‘Sustainability in Geoengineering: A New Paradigm for Engineering with Earthen Materials’, 8th International Congress on Environmental Geotechnics, Hangzhou China.

Benson, C 2018c, ‘Field Evaluation of Radon Fluxes from In-Service Disposal Facilities for Uranium Mill Tailings’, DOE-LM Long-Term Stewardship Conference, Grand Junction, Colorado. https://www.energy.gov/sites/prod/files/2018/10/f57/Benson-Field-Eval-Radon-Flux.pdf

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