Expert Judgment on Markers to Deter Inadvertent Human Intrusion Into the Waste Isolation Pilot Plant
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SANDIA REPORT SAND92–1382 ● UC–721 Unlimited Release Printed November 1993 Expert Judgment on Markers to Deter Inadvertent Human Intrusion into the Waste Isolation Pilot Plant Kathleen M. Trauth, Stephen C. Hera, Robert V. Guzowsti Prepared by Sandia National Laboratories Albuquerque, New Mexico 87185 and Livermore, California 94550 for the United Statea Department of Energy under Contract DE-ACO&94AL85000 ______ . ., ,, ,, Issuedby SandiaNationalLaboratories,operatedfortheUnitedStates DepartmentofEnergyby SandiaCorporation. NOTICE Thisreportwaspreparedasanaccountofworksponsoredbyan agencyoftheUnitedStatesGovernment.NeithertheUnitedStatesGovern- ment noranyagencythereof,noranyoftheiremployees,noranyoftheir contractors,subcontractors,ortheiremployees,makesanywarranty,express orimplied,orassumesanylegalliabilityorresponsibilityfortheaccuracy, completeness,or usefulnessof any information,apparatusproduct,or processdisclosed,orrepresentsthatitsusewouldnotinfringeprivately ownedrights.Referencehereintoanyspecificcommercialproduct,process,or serviceby tradename,trademark,manufacturer,or otherwise,doesnot necessarilyconstituteorimplyitaendorsement,recommendation,orfavoring by the UnitedStatesGovernment,any agencythereofor any of their contractorsorsubcontractors.The viewsand opinionsexpressedhereindo notnecessarilystateorreflectthoseoftheUnitedStatesGovernment,any agencythereoforanyoftheircontractors. PrintedintheUnitedStatesofAmerica.Thisreporthasbeenreproduced directlyfromthebestavailablecopy. AvailabletoDOE andDOE contractorsfrom OfficeofScientificandTechnicalInformation PO BOX 62 Oak Ridge,TN 37831 Pricesavailablefrom(615)576-8401,FTS 626-8401 Availabletothepublicfrom NationalTechnicalInformationService US DepartmentofCommerce 5285PortRoyalRd Springfield,VA 22161 NTIS pricecodes PrintedcopyA15 MicrofichecopyAO1 ACKNOWLEDGMENTS The authors wish to thank the individuals who served on the Marker Development Panel. Team A. Dieter G. Ast (Cornell University), Michael Brill (Buffalo Organization for Social and Technological Innovation, Inc.), Maureen F. Kaplan (Eastern Research Group, Inc.), Ward H. Goodenough (University of Pennsylvani.a), Frederick J. Newmeyer (University of Washington), and Woodruff T. Sullivan, III (University of Washington). Team B. Victor R. Baker (University of Arizona), Frank D. Drake (University of California at Santa Cruz), Ben R. Finney (University of Hawaii at Manoa) , David B. Givens (American Anthropological Association) , Jon Lomberg (independent artist, designer, and writer), Louis Narens (University of California at Irvine), and Wendell Williams (Case Western Reserve University). Thanks go to members of the Futures Panel who discussed their team’s efforts and recommendations with the Markers panel--Michael Baram (Boston Team), Martin Pasqualetti (Southwest Team), Dan Reicher (Washington A Team), and Maris Vinovskis (Washington B Team). Thanks also go to the Sandia Staff who presented material to the experts--D. Richard Anderson (63f+2), Marilyn Gruebel (Tech Reps, Inc.), Peter Swift (6342), and Wendell Weart (6303). Virginia Gilliland and Molly Minahan (Technical Writers), Debbie Marchand and Hawaii Olmstead (Illustrations), Susan Gill (Technical Editor), Steve Tullar (Production), and Debra Rivard and the Word Processing Department of Tech Reps, Inc. provided support in conducting the meetings and documenting the results. The authors would also like to thank the technical reviewers, Marilyn Gruebel (Tech Reps, Inc.) and Erik Webb (6331) for their useful comments. ii This SAND report was prepared from information presented by a panel of experts expressing judgments about the design and efficacy of markers to deter inadvertent human intrusion into the Waste Isolation Pilot Plant (WIPP) . Appendices F and G were written by the panelists. The authors consolidated and utilized these appendices in preparing the body of the report. The individual reports are reprinted as received by the project coordinator except for (1) correcting typographical errors, (2) editing for internal format consistency, (3) renumbering, repositioning, and captioning figures, (4) updating the table of contents to be in line with the previous changes, and (5) changing the text in accordance with answers to a number of questions that were addressed to the individual teams about their reports as written. The members of the expert panel reviewed a draft copy of the report and the updated versions of Appendices F and G, and responded to the questions provided. The panel of experts made their judgments based on current (as of November 1991) information from disciplines pertinent to markers and about the WIPP Project itself. A final decision on marker system design and placement will be based on all information that is available to the WIPP Project at the time the decision is made. iii iv 1 INTRODUCTION .............................................)......... 1-1 1.1 Regulatory Requirement for Markers ........................... 1-5 1.2 Background ................................................... 1-8 1.2.1 Future Societies ...................................... 1-8 1.2.2 Marker Development .................................... 1-11 1.3 Purposes of the Study... ..................................... 1-12 2 ORGANIZATION AND METHODOLOGY. ..................................... 2-1 2.1 Using Expert Judgment.. ...................................... 2-1 2.2 Expert-Judgment Panel... ..................................... 2-2 2.2.1 Decision to Use an Expert-Judgment Panel .............. 2-2 2.2.2 Development of the Issue Statement .................... 2-2 2.2.3 Selection of Experts.. ................................ 2-4 2.2.3.1 Nomination Process ........................... 2-4 2.2.3.2 Selection Advisory Committee ................. 2-5 2.2.3.3 Selection of Panel ........................... 2-6 2.2.4 Panel Deliberations. .................................. 2-6 3 RECOMMENDED DESIGN CHARACTERISTICS ................................ 3-1 3.1 Team A ....................................................... 3-2 3.1.1 Basic Premises ........................................ 3-2 3.1.2 Assumptions/Bases ..................................... 3-2 3.1.3 Message Levels and Media. ............................. 3-3 3.1.4 Marker System Components .............................. 3-4 3.1.5 Other Design Requirements ............................. 3-5 3.2 Team B ...................................................... 3-6 3.2.1 Basic Premises ........................................ 3-6 3.2.2 Assumptions/Bases ..................................... 3-8 3.2.3 Message Levels and Media. ............................. 3-8 3.2.4 Marker System Components .............................. 3-9 4 PRINCIPLES OFFING... .......................................... 4-1 4.1 Architectural-Design Principles .............................. 4-1 v Contents 4.2 Linguisti.cPrinci.pies. ....................................... 4-5 4.3 Material-Properties Principles ............................... 4-5 4.4 Message-Level Principles ..................................... 4-6 5 PROBABILITY ELICITATION. .......................................... 5-1 5.1 Persistence of Markers ....................................... 5-1 5.2 Interpretability of Messages ................................. 5-2 5.3 Conclusions and Implementation. .............................. 5-9 6 REFERENCES ........................................................ 6-1 Appendix A: Issue Statement for the Development of Markers to Deter Inadvertent Human Intrusion into the Waste Isolation Pilot Plant ............................................... A-1 Appendix B: Letter Requesting Nominations ............................. B-1 Appendix C: List of Those to Whom Requests for Nominations Were Sent.. c-1 Appendix D: Letter to Nominees. ....................................... D-1 Appendix E: Expert Panel Selection Criteria ........................... E-1 Appendix F: Team A Report: Marking the Waste Isolation Pilot Plant for 10,000 Years .......................................... F-1 Appendix G: Team B Report: The Development of Markers to Deter Inadvertent Human Intrusion into the Waste Isolation Pilot Plant (WIMP) ........................................ G-1 vi Contents Figures 1-1 WIPP location map.... ............................................ 1-2 1-2 Proposed WIPP repository, showing both TRU-waste disposal areas and experimental areas ........................................... 1-3 1-3 Generalized WIPPstratigraphy. ................................... 1-4 1-4 Artist’s concept of the WIPP disposal system showing the controlled area and accessible environment for 40 CFR 191, Subpart B, and the repository/shaft system ....................... 1-7 Tables 2-1 Marker Development Panel ......................................... 2-7 4-1 Marker System Components ......................................... 4-2 5-1 Probabilities of the Marker System Persisting - Team A ........... 5-2 5-2 Consensus Probabilities of the Marker System Persisting - Team B ........................................................... 5-3 5-3 Probability of Correct Interpretation of Message--Drilling for Water as Mode of Intrusion. ...................................... 5-4 5-4 Probability of Correct Interpretation of Message--Mineral Exploration as Mode of Intrusion ................................. 5-5 5-5 Probability of Correct Interpretation of Message--Drilling for Disposal Wells as Mode of Intrusion .............................. 5-6 5-6 Probability of Correct Interpretation of Message--Archaeological