_ ii mlmmmm

LIIIIIIIIlIILLIII

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SAND93-0054 Distribution

Unlimited Release Category UC-721Printed October 1993

Status of Waste Isolation Pilot Plant Compliancewith 40 CFR 191f3, December 1992

M.G. Marietta and D.R. Anderson

WIPP Performance Assessment Department 6342Sandia National Laboratories

Albuquerque, NM 87185

ABSTRACT

Before disposing oftransuranic radioactive waste at the Waste Isolation Pilot Plant (WIPP), the U.S.Department of Energy (DOE) must evaluate compliance with long-term regulations of the U.S.Environmental Protection Agency (EPA). Sandia National Laboratories (SNL) is conductingiterative performance assessments (PAs) of the WIPP for the DOE to provide interim guidance whilepreparing for final compliance evaluations. This paper describes the 1992 preliminary comparison

with Subpart B of the Environmental Standards for the Management and Disposal of Spent NuclearFuel, High-Level and Transuranic Radioactive Wastes (40 CFR 191), which regulates long-termreleases of radioactive waste. Results of the 1992 PA are preliminary, and cannot be used todetermine compliance or noncompliance with EPA regulations because portions of the modelingsystem and data base are incomplete. Results are consistent, however, with those of previousiterations of PA, and the SNL WIPP PA Department has high confidence that compliance with 40CFR 191B can be demonstrated. Comparison of predicted radiation doses from the disposal systemalso gives high confidence that the disposal system is safe for long-term isolation.

Dt_i[)i_i.JiiC);:_ C;;: i_;i.; _()(.,_;_Si:, S _ i_ U;dLii'v"ii"[_L',;

ACKNOWLEDGMENTS

The authors wish to recognize the technical reviews of this report by David Gallegos and Andrew Peterson (6342) ofSandia National Laboratories.

PREFACE

This SAND report is a reproduction of the identically titled paper published in:

American Nuclear Society and American Society of Civil Engineers. High-Level Waste Management:

Proceedings of the l_)urth Annual International Conference in Las Vegas, NV, April 26 - 30, 1993. AmericanNuclear Society, La Grange, IL; American Society of Civil Engineers, New York, NY.

iii

STATUS OF WIPP COMPLIANCE WITH EPA 40 CFR 191B

DECEMBER 1992

M.G. Marietta and D.R. Anderson

WIPP Performance Assessment Departs-ant 6342Sandia National Laboratories

Albuquerque, Hew Mexico 87185(505) 8_ 8038

ABSTRACT

Before disposing of trausuranic radioactive agencies of the federal government to prepare awaste at the Waste Isolation Pilot Plant (_PP), detailed statement on the environseutal impactsthe United States Depar_ent of Energy (DOE) of "proposed major federal actions affecting thelust evaluate compliance with long-term quality of the human environment." Inregulations of the United States Environmental compliance with the NEPA, an additionalProtection Agency (EPA). Sandia National supplemental environmental impact statement

Laboratories (SNL) is conducting iterative (SEIS) is planned prior to permanent dispo_al. 4performance assessments (PAs) of the WIPP for This paper addresses the present status of WIPP

the DOE to provide interim guidance while compliance with Subpart B of 40 CFR 191 and anpreparing for final compliance evaluations, evaluation of long-term safety of the WIPP.This paper describes the 1992 preliminarycomparison with Subpart B of the £nvironmental Subpart B of 40 CFR 191 was vacated by aStandards for the Management and Disposal of Federal Court of Appeals in 1987 and isSpent Nuclear Fuel, High-Level and Transuuranic undergoing revision; by agreement with the State

Radioactive Wastes (40 CFR 191), which regulates of New Mexico 5 the DOE will continue to evaluatelong-term releases of radioactive waste, repository performance with respect to the

Results of the 1992 PA are pzellminary, and standard as first promulgated until a ne_cannot be used to determine compliance or version is available. The Waste Isolation Pilot

noncompliance wlth EPA regulations because Plant Land Withdrawal Act, 6 which mandates

portions of the modeling system and data base specific actions before the Test Phase for the

are incomplete. Results are consistent, WIPP can begin, requires the EPA to repromulgatehowever, with those of previous iterations of the regulation before May 1993. The approach toPA, and the SNL WIPP PA Depart_nent has high &O CFR 191B and the resultant methodologyconfidence that compliance with 40 CFR 191B can reported here have not been modified to reflect

be demonstrated. Comparison of predicted the EPA'a efforts to develop a new Subpart B.

radiation doses from the disposal system also The Containment Requirements in Subpart B of_0 CFR 191 set limits on the probability thatgives high confidence that the disposal system

is safe for long-term isolation, cumulative radionuclide releases to theaccessible environment during the 10,000 years

INTRODUCTION following decoamisslonlng of the repository willexceed certain limits. As defined in the

The United States Department of Energy (DOE) standard, the accessible environment is "(1) theis developing the Waste Isolation Pilot Plant atmosphere; (2) land surfaces; (3) surface(WIPP), located in 255 million-year-old bedded waters; (4) oceans; and (5) all of thesalt in southeastern New Mexico, for disposal of lithosphere r_t is beyond the controlled area"transuranic wastes generated by defense (191.12[k]).1programs. The DOE must first evaluatecompliance with the Environmental Protection To comply with the requirements of

Agency's (EPA) Environmental Standards for the _0 CFR 191B, performance assessments (PAs) mustManagement and Disposal of Spent _uclaar Fuel, construct a modeling system that can adequatelyNigh-Level and Transuranic Radioactive Yaates simulate all raall_tic future states of the

(40 CFR Part 191), 1 and with the Land Disposal repository that mlght result in radionuclide

Restrictions (&0 CFR Part 268) 2 of the Nszamdoua releases. _ecause the regulatory limits arem_d Solid Waste Amendments to the keaource probabilistic, PAs must accurately reflect

Conservation and Recovery act, The National variability and uncertainty within all factors

Environmental Policy Act (NEPA) 3 requires all that contribute to the simulation, including

variability in material properties, Subsurface releases of radionuclidesprobabilities of future human actions, and following lateral transport in groundwater areuncertainties inherent in the conceptual and believed moat likely to occur in the Culebra

numerical models that simulate reality. In Dolomite Member of the Rustler Formationkeeping wlth the strategy of the _PP Project overlying the repository. For analysis

Headquarters for achieving a compliance purposes, subsurface transport is assumed todecision, 4 the _IPP PA Deparrsent has completed occur only in the Culebra, maximizing thethree annual PAs evaluating preliminary potential for releases by this pathway.compliance with 40 CFR Part 191, Subpart B. 7-16

Figure 1 illustrates a representativeThis paper summarizes the present status of intrusion scenario. In the scenario, a borehole

WIPP PA. 14"16 All PA results to date are penetrates the repository and a hypothetical

preliminary and cannot be uJed to determine pressurized brine reservoir in the underlyingcompliance or noncompliance with EPA regulations Castile Formation.governing long-term performance. Only the long-term performance of the disposal system is CO_ATIONAL MODELSaddressed.

The primary computer programs used in theINADVERTENT HUMAN INTRUSION computational models for the 1992 preliminary PA

(Figure 2) reflect improvements in thePAs for 40 CF_ 191B presently concentrate on concept_al and numerical models used in the 1991

inadvertent human intrusion during exploratory and previous PAs and permit the replacement of

drilling for resources, which has been simplifying assumptions with more realistic

demonstrated by past analysesl7,18,10"12, 19 to models. Three of the most significantbe the only event likely to lead to radionuclide improvements in 1992 are discussed here.

releases close to or in excess of regulatory

limits. Future drilling technology is assumed The 1992 calculations mark the first time

for these analyses to be comparable to the effects of salt creep have been explicitly

technology presently in use in the region around included in PAs. Salt will deform over time by

the WIPP. creep in response to a pressure gradient, and,if the repository remained at atmospheric

If the waste-disposal panels are penetrated pressure, lithostatic stresses would cause it toby an exploratory borehole, radionuclides may close almost completely within I00 years. 20"22reach the accessible environment by two Gas will be generated within the repository by

principal pathways. First, some radlonuclides degradation of the waste, however, and pressurewill be transported up the borehole directly to within the repository will rise to elevated

the ground surface. Second, additional levels that will retard complete creep closureradionuclides transported up the borehole will and may perhaps partially reverse the process.migrate into overlying strata and may be In 1991 no model was available to describe the

transported laterally in groundwater to the coupled interaction of creep closure and gas

eubsurface boundary of the accessible pressurization, and the performance-assessmentenvironment, calculations used a simplifying assumption that

porosity withi_ the disposal region would remain

Most releases at the ground surface will be constant through time. Th_ 1992 calculations

in the form of particulate waste entrained in use output from the geomechanlcal code SANCHO 23

the drilling fluid, including components from to define the porosity of the waste as a

cuttings (material removed by the drill bit), function of pressure. Although this method doescavings (material _roded from the borehole wall not represent a full coupling of creep closureby the circulating drilling fluid), and and gas generation, the modeling improvement

spallings (material that enters the borehole as allows the PA to evaluate the importance ofthe repository depressurizes). For convenience, chan_lng void volume in the repository.

these particulate releases are collectivelyreferred tn in performance-assessment The method used to incorporate spatial

documentation as cuttings. For the 1992 variability in the tran_miesivity field in thecalculations, results referred to as cuttings Culebra has been modified significantly from

include cavtngs but do not include spallings, that used in 1991. WIPP PA now uses anIf important, spallings will be _.ncluded in automated inverse approach to calibrate a t_wo-future PAs whe_ models and data are available, dimensional model to both steady-state andRelease of radionuclides dissolved in brine that transient pressure date, geaerating multiple

may flow up the borehole to the _round surface realizations of the transmissivlty field. 15,24

both during drilling and after degradation of Seventy calibrated fields were sampled for use

plugs has not been included either in past PAs in the 1992 PA.or in the results presented in this volume.

Preliminary analyses of releases by these Eadionucllde transport in the Culebramechanisms will be included in later PAs. Dolomite, which had been simulated using

Figure 1 - Conceptual model for an intrusion scenario in _.tch a boreholepenetrates the repository and a hypothetlcal pressurized brine reservoir inthe underlying Castile Formation. Arrovs indicate assumed direction andrelative magnitude of £1ov. Rc 18 the release of cuttings and erodedmaterial. Rac c is the release at the subsurface boundary of the accessibleenviror_ent. Illustrated plugs are assumed to remain intact for 10,000

years.

Figure 2 - i4aJor codes uaed in the 1992 performance usessnent.

3

STAFF2D 25 in the 1991 PA, is now simulated by relative impacts on performance of specific

the SECO-TP code. 16 SECO-TP is a dual-porosity components of the natural barrier system andmodel in which advectlve transport is allowed institutional controls at the WIPP.

only in fractures, and diffusion of soluteThe uppermost CCDF in Figure 3, labeled

occurs into the rock matrix surrounding the"Total, Single Porosity + Cuttings, Ao" and

fracture. The fracture system is idealized ascalculated using the slngle-poroslty (fracture

planar and parallel, and each fracture wall may

be coated with a layer of clay of uniform thick- only) and constant A models, represents an esti-mate of the performance of the disposal system

ness and porosity. The model is capable ofwlth very little contribution from the natural

simulating both physical retardation by dlffu-barrier provided by retardation in the Culebra

sion and chemical retardation by sorptlon inDolomite and no contribution from the potential

both clay fracture linings and dolomite matrix.institutional barrier that could be provided by

PROBABILITIES OF SCENARIOS passive markers, as required by the AssuranceRequirements (191.I_). • For the modeling system

Preliminary PAs for the WIPP prior to 1990 and data base used in 1992, the mean CCDF forconsidered a fixed number of human intrusions this case lles below the EPA limits.

with fixed and arbitrary probabilltles.17, 26

The 1990 preliminary assessment 7 compared per- The segments of a CCDF shown with a dotted

formance assuming fixed probabilities for Intru- llne and labeled "Total, Discharge from Borehole

slon events with performance estimated assuming + Cuttings, Ao" display performance with D_qcontribution whatsoever from retardation in thethat intrusion through the repository follows a

Culebra Dolomite. This CCDF is unlike othersPoisson process (i,e., intrusion events are

random in time and space) with a rate constant, shown in this figure in that releases are notcalculated at the accessible environment and

_o. The 1991 assessmentlO, II included a prob-

ability model based on the Polsson assumption therefore is not suitable for comparison, pre-and also included effects of variable activity llminary or otherwise, with the Containment

loading within the waste-disposal panels with Requirements. The curve displays releases5oreholes intersecting waste of five different directly into the Culebra Dolomite (with cut- I

levels of radioactivity. 13 Based on guidance in tings also included) from boreholes occurring at

Appendix B of 40 CFR 191, a maximum of 30 bore- 1000 years and therefore provides an estimate of

holes/km 2 were allowed in I0 000 years, total releases if subsurface transport to the' accessible environment were instantaneous and

The 1992 preliminary PA marks the first use complete. Instantaneous and complete transport

for the WIPP of external expert Judgment to is physically unrealistic, and this curve is

estimate the probability of future intrusion, displayed only for the purpose of comparison

Teams of experts from outside the WIPP Project with the curve described in the previous para-

were selected and organized into two panels to graph, which was calculated using the single-address (I) the nature of future societies and porosity and constant A models. _he two curves

the possible modes of intrusion, and (2) types are identical for most of their lengths. Theof markers and their potential effectiveness in differences between the curves are caused by

deterring intrusion. 16 The judgments elicited radioactive decay during transport, and the

from these panels were used to construct an single-porosity transport model in effect allows

algorithm describing possible changes in the all sufficiently long-llved radionuclides that

Poisson rate constant, At, with time. 16 l_e enter the Culebra Dolomite to be transported to

1992 preliminary PA presents results calculated the accessible environment within the 9000 yearsboth using the 1991 tlme-lnvariant formulation following intrusion.

and the time-dependent formulation ba&ed onThe CCDF in Figure 3 labeled "Total, Dual

external expert Judgment. Both formulationsPorosity + Cuttings, Kd_O , _o" represents an

used the same representation for variable ac-

tivity loading within the waste-disposal panels estimate of the performance of the disposalsystem if physical retardation by diffusion into

used in the 1991 PA. 13 The time-dependent for- the pore volume of the Culebra Dolomite is in-mulation, which included the deterrence effectcluded as a part of the natural barrier system.

of markers, resulted in significantly fewerThe area between the first and second CCDFs is a

intrusions than the time-invariant formulation.measure of the potential regulatory impact of

RESULYS OF THE 1992 PERFORMANCE ASSESSMENT including physical retardation. Similarly, thenext CCDF in Figure 3, calculated using the

Results of the 1992 PA are consistent with dual-poroslty, Kd_0 , and constant A models,the conclusion made in previous preliminary represents an estimate of the psrformance of the

comparisons that performance estimates for the disposal system if both physical and chemical

WIPP lie below the limits set by the Containment retardation in the Culebra Dolomite are included

Requirements of Subpart B of d0 CFR 191.7, 10 As in the natural barrier system. The location of

illustrated in Figure 3, consideration of alter- this third curve is determined entirely by cut-native models for the probability of human in- tings releases.trusion and radionucllde transport in the

Culebra Dolomite provides insights into the

10° E ........ '1 "_"'"_"l '"' ...... I _"" .... _'i' _"_"..... '....... 1 "_ "'""q '"' .....

Total, Single Porosity EPA Containment

I + Cuttings, _0 _ Requirement(191.13(a))

10-1 .....

Total, Dual Poros_

_" 10 .2 + Cuttings, ND = 0, _'oA :

rr"

_ 10"3 Tot_,Total, Dual Porosity

'R + Cuttings, KD _ O, _'o fromBoreholec_ +Cuttings,_0.02n 10.4

Total, Dual Porosity

10. 6 ......... I ........ I , ,j ..... I ....... d .... I ,I a = ..... I .......

0 10.4 10 .3 10.2 10"1 100 101 10 2 103

Summed Normalized Releases, RTR1.6342-2399-0TRI-6342-2397.OTR1-¢342-2410-OTRI.6342-2411-OTRI-6342.2414-0

Figure 3 - Comparison of mean CCDFs for total (cuttings plus subsurface)

releases from intrusions occurring at i000 years showing the impact of

including specific components of the natural and institutional barrier

systems. Both curves shown for Kd_O are dominated completely by cuttings

releases. Summed normalized releases are displayed using an inverse

hyperbolic sine scale, which differs from a logarithmic scale only in theinterval between 0 and 10 -4 .

The final CCDF in Figure 3, calculated using that are shown to be important for PA, to con-

the dual-porosity, Kd_O, and tlme-dependent A firm that reality lles within the range of un-

models, shows the effect of including expert certainty used by PA.Judgment on the efficacy of passive markers in

reducing the probability of human intrusion. AJnalyses supporting these conclusions

This final CCDF, also determined entirely by indicate that, with regard to 40 CFR 191B, thecuttings releases, was calculated using what the direct release of radioactive material at the

WIPP PA Department believes at this time to be ground surface during borehole intrusions domi-

the most realistic conceptual model for the hates the estimates of cumulative 10,O00-year

disposal system, based on models and data avail- releases. Important uncertain parameters in-

able in 1992. As indicated previously, results clude the rate of _uture intrusion, the perme-

are preliminary, and none of the curves shown in ability of future borehole fill, and the dia-

Figure 3 are believed sufficiently defensible meter of future boreholes. An important assump-for use in a final compliance evaluation, tion used in calculating these direct releases

is that present-day drilling technology persists

CONCLUSIONS for I0,000 years. Other parameters for whichuncertainty has a relatively large impact on

Significant improvements in the 1992 PA cumulative radlonucllde releases include perme-

modeling system over that used in previous abilities of the anhydrlte and halite of theyears 26 were the simulation of waste-generated undisturbed Salado Formation, radionuclide

gas and two-phase (brine and gas) flow modeling solubilities in repository brine, radionuclidein the repository; the use of geostatlstically retardation in the Culebra Dolomite, and parame-

generated transmlssivity fields in the Culebra ters used in the assumed dual-porosity model for

Dolomite Member; the use of a Poisson model with radlonucllde transport in the Culebra Dolomite.time-varying drilling intensities to determine

scenario probabilities; the inclusion of a pre- ACKNOWleDGMENTliminary analysis of potential effects of cll-

mate variability on flow in the Culebra Dolo- This is Sandia National Laboratories re-mite; and the inclusion of the effects of salt port SAND93-O054C. Work was performed for the

creep (closure and inflation of waste panels) United States Department of Energy under Con-

Processes not included in the analyses reported tract DE-ACO4-76DPO0789.in the set of documents comprising the 1992 PA

that could have a significant effect on perfor- REFERENCESmance are fracturing in the anhydrite interbeds, i. United States Environmental Protection

and spalling into an intrusion borehole. Impor- Agency, "40 CFR Part 191: Environmental Stan-

rant uncertainties that have not been assessed dards for the Management and Disposal of Spent

and included in the 1992 PA14"16 are conceptual Nuclear Fuel, High-Level and Transuranic Radio-

uncertainties in many parts of the system, both active Wastes; Final Rule," Federal ReRister _Q,in non-Salado and Salado natural barrier systems 38066-38089 (1985).and within the engineered barrier system. Ef-fects of subsidence due to potash mining were 2. United States Environmental Protection

not included in the scenario analyses. WIPP PA Agency, "40 CFR Part 268: Land Disposal Restric-tions," as amended and published in the mosthas a high level of confidence that the netrecent Code of Federal Re_ul_tlons, Office ofeffect of including these refinements will not

change the overall conclusions (major conclu- the Federal Register, National Archives and

sions 1 and 2 below) of the 1992 analysis but Records Administration, Washington, DC (1986).

will provide additional confirmation for those 3. Public Law 91-190, "National Environmental

conclusiSns. Policy Act of 1969, as amended by Public Law

Major conclusions that can be drawn from the 94-52 and Public Law 94-83 (1970).

1992 preliminary PA for the WIPP are as follows: 4. United States Department of Energy.

I. PA analysts have high confidence that "Strategy for the Waste Isolation Pilot Plant

compliance with Subpart B of Test Phase," DOE/EM/48063-_, Office of Waste40 CFR 191 can be demonstrated. Operations, US Department of Energy, Washington,

DC (1991).2. By comparison with doses from other

common sources and ICRP 5. Public Law 102-579, "Waste Isolation Pilot

recommendations, PA analysts have high Plant Land Withdrawal Act" (1992).

confidence that the facility is safe 6. United States Department of Energy and Statefor long-term isolation, of New Mexico, "Agreement for Consultation and

_%ese tWO conclusions, and therefore Cooperation" on the WIPP (1981, modified Novem-

demonstration of compliance with 40 CFR 191B and ber 30, 1984; August 4, 1987; and March 22,

determination of the long-term safety of the 1988).

disposal system, are conditional on completion 7. S.G. Bertram-Howery, M.G. Marietta, R.P.of those portions of the WIPP Test Phase Plan 27 Rechard, P.N. Swift, D.R. Anderson, B.L. Baker,

J.E. Bean, Jr., W. Beyeler, K.F. Brinster, R.V.

Guzowskl, J.C. Helton, R.D. McCurley, D.K. luzzollno, and R.P. Rechard, "Performance

Rudeen, J.D. Schrelber, and P. Vaughn, "Prelim- Assessment Methodology Demonstration: Method-

inary Comparison with 40 CFR Part 191, Subpart B ology Development for Purposes of Eval:aatlng

for the Waste Isolation Pilot Plant, December Compliance with EPA 40 CFR Part 191, Subpart B,1990, _AND90-2347, Sandla National Laboratories for the Waste Isolation Pilot Plant,"

(1990). SAND89-2027, Sandia National Laboratories

8. R.P. Rechard, H. Iuzzolino, and J.S. Sandha, (1989).

"Data Used in Preliminary Performance Assessment 18. S.G. Bertram-Howery, M.G. Marietta, D.R.of the Waste Isolation Pilot: Plant (1990)," Anderson, K.F. Brinster, L.S. Gomez, R.V.

_, Sandia National Laboratories Guzowski, and R.P. Rechard, "Draft Forecast of

(1990). the Final Report for the Comparison to 40 CFR

Part 191, Subpart B for the Waste Isolation9. J.C. Helton, J.C., J.W. Garner, R.D.

Pilot Plant," SAND88-1452, Sandia National Labo-

McCurley, and D.K. Rudeen, "Sensitivity Analysis ratorles (1989)Techniques and Results for Performance Assess-

ment at the Waste Isolation Pilot Plant," 19. WIPP Performance Assessment Department,

SAND90-7103, Sandia National Laboratories "Long-Term Gas and Brine Migration at the Waste(1991). Isolation Pilot Plant: Preliminary Sensitivity

I0. WIPP Performance Assessment Division, "Pre- Analyses for Post-Closure 40 CFR 268 (RCRA), May1992," _/_.___3, Sandla Natlonal Laboratories

liminary Comparison with 40 CFR Part 191, Sub-

part B for the Waste Isolation Pilot Plant, (1992).

December 1991--Volume i: Methodology and Re- 20. L.D. Tyler, R.V. Matalucci, M.A. Molecke,suits," SAND91-0893/l, Sandia National Laborato- D.E. Munson, E.J. Nowak, and J.C. Stormont,

ries (1991). "Summary Report for the WIPP Technology De-

ll. WIPP Performance Assessment Division, "Pre- velopment Program for Isolation of RadioactiveWaste," SAND88-0844, Sandia National Laborato-

liminary Comparison with 40 CFR Part 191, Sub-rles (1988).

part B for the Waste Isolation Pilot Plant,

December 1991--Volume 2: Probability and Conse- 21. D.E. Munson, A.F. Possum, and P.E. Senseny,

quence Modeling," SANDPl-08_3/2, Sandia National "Advances in Resolution of Discrepancies BetweenLaboratories (1991). Predicted and Measured In Situ WIPP Room

Closures," SAND88,2948, Sandia National Labora-12. WIPP Performance Assessment Division, "Pre-

tories (1989).liminary Comparison with 40 CFR Part 191, Sub-

part B for the Waste Isolation Pilot Plant, 22. D.E. Munson, A.F. Fossum, and P.E. Senseny,December 1991--Volume 3" Reference Data," "Approach to First Principles Model Prediction

_6_!D9_-0893/3, Sandia National Laboratories of Measured WIPP In Situ Room Closure in Salt,"

(1991). SAND88-2535, Sandla National Laboratories

13. J.C. Helton, J.W. Garner, R.P. Rechard, (1989).

D.K. Rudeen, and P.N. Swift, "Preliminary Com- 23. C.M. Stone, R.D. Krieg, and Z.E. Belsinger,

parlson with 40 CFR Part 191, Subpart B for the "SANCHO: A Finite Element Computer Program for

Waste Isolation Pilot Plant, December the Quaslstatic, Large Deformation, Inelastic1991--Volume 4: Uncertainty and Sensitivity Response of Two-Dimensional Solids,"

Analysis Results, SAND91-0893/4, Sandia National SAND84-2618, Sandla National Laboratories

Laboratories (1992). (1985).

14. WIPP Performance Assessment Department, 24. A.M. LaVenue and B.S. RamaRao, "A Modeling

"Preliminary Performance Assessment for the Approach to Address Spatial Variability within

Waste Isolation Pilot Plant, December the Culebra Dolomite Transmisslvlty Field,"

1992--Volume I: Third Comparison with 40 CFR ____i//9__, Sandia National Laboratories191, Subpart B," SAND92-0709/1, Sandla National (1993).

Laboratories (1992). 25. P.S. Nuyakorn, H.O. White, Jr., and S.

15. WIPP Performance Assessment Department, Panday, STAFF2D Solute Transport add Fracture

"Preliminary Performance Assessment for the Flaw in Two Dimensions, Hydrogeologlc, Inc.,Waste Isolation Pilot Plant, December Herndon, VA (1989).

1992--Volume 2" Technical Basis," SAND92-0700/2, 26. M.G. Marietta, S.G. Bertram-Howery, R.P.Sandia National Laboratories (1992). Rechard, and D.R. Anderson, "Status of WIPP

16. Sandia WIPP Project, "Preliminary Perfor- Compliance with EPA 40 CFR 191, December 1990,"

mance Assessment for the Waste Isolation Pilot Hi eh Level Radioactive Wa_ M_na_em_Dt. Pro-Plant, December 1992--Volume 3: Model Parame- 9eedln_$ of the Secoqd ADn_I Internatlonal

ters," SAND92-0700/3, Sandia National Laborato- Conference. Las Vegas. ADrll 28-_@y 3. 1991, _,ries (1992). 1181-1188.

17. M.G. Marietta, S.G. Bertram-Howery, D.R. 27. United States Department of Energy WIPPAnderson, K. Brinster, R. Guzowski, H. Project Integration Office, "WIPP Test Phase

Plan," DOE/WIPP89-OI1. Rev, i. Albuquerque, NM

(1993).

7

DISTRIBUTION

(Send Distribution list changes to M.M. Gruc_bel, Dept. 6342, Sandia

National Laboratories, PO Box 5800, Albuquerque, NM 87185-5800)

Federal Agenci_ US Department of EnergyOffice of Environmental Restoration

US Department of Energy (6) and Waste Management

Office of Civilian Radioactive Waste Attn: S. Schneider, EM-342,Management Trevion II

Attn: Deputy Director, RW-2 Washington, DC 20585-0002Associate Director, RW-IO/50

Office of Program and US Department of Energy (3)Resources Management WIPP Task Force

Office of Contract Business Attn: G.H. Daly

Management S. FucignaDirector, RW-22, Analysis and B. Bower

Verification Division 12800 Middlebrook Rd., Suite 400

Associate Director, RW-30 Germantown, MD 20874Office of Systems and

Compliance US Department of Energy (4)

Associate Director, RW-40 Office of Environment, Safety andOffice of Storage and Health

Transportation Attn: R.P. Berube, EH-20

Director, RW-4/5 C. Borgstrum, EH-25Office of Strategic Planning R. Pelletier, EH-231

and International Programs K. Taimi, EH-232

Office of External Relations Washington, DC 20585Forrestal Building

Washington, DC 20585 US Department of Energy (6)

WIPP Project Integration OfficeUS Department of Energy Attn: S Alcorn

Albuquerque Operations Office W J. Arthur III

Attn: National Atomic Museum Library J Coffey

PO Box 5400 L W. Gage

Albuquerque, NM 87185 P J. HigginsD A. Olona

US Department of Energy (2) PO Box 5400

Office of Environmental Restoration Albuquerque, NM 87115-5400and Waste Management

Attn: EM-I US Department of ENergy (2)

C. Frank, EM-50 WIPP Project Integration SatelliteWashington, DC 20585 Office

Attn: R. Batra

_]S Department of Energy (3) R. Becker

Office of Environmental Restoration PO Box 3090, Mail Stop 525

and Waste Management Carlsbad, NM 88221-3090Attn: M. Frei, EM-34, Trevion II

Director, Waste Management Projects US Department of Energy (i0)

Washington, DC 20585-0002 WIPP Project Site Office (Carlsbad)

Attn: A. Hunt (4)

US Department of Energy V. Daub (4)

Office of Environmental Restoration J. Lippisand Waste Management K. Hunter

Attn: J. Lytle, EM-30, Trevion II PO Box 3090

Washington, DC 20585-0002 Carlsbad, NM 88221-3090

Dist-i

US Department of Energy US Department of Energy (2)

Research & Waste Management Division Chicago Operations Office

Attn: Director Attn: J.C. HaugenPO Box E 9800 South Cass Avenue

Oak Ridge, TN 37831 Argonne, IL 60439

US Department of Energy (2) US Department of Energy (3)Idaho Operations Office Rocky Flats Area Cffice

Fuel Processing and Waste Attn: W.C. Rask

Management Division G. Huffman785 DOE Place T. Lukow

Idaho Falls, ID 83402 PO Box 928Golden, CO 80402-0928

US Department of Energy

Savannah River Operations Office US Department of Energy

Defense Waste Processing Dayton Area Office

Facility Project Office Attn: R. GrandfieldAttn: W.D. Pearson PO Box 66

PO Box A Miamisburg, OH 45343-0066Aiken, SC 29802

US Department of Energy

US Department of Energy (2) Attn: E. Young

Richland Operations Office Room E-178

Nuclear Fuel Cycle & Production GAO/RCED/GTN

Division Washington, DC 20545Attn: R.E. Gerton

825 Jadwin Ave. US Bureau of Land ManagementPO Box 500 Carlsbad Office

Richland, WA 99352 I01 E. Mermod

Carlsbad, NM 88220

US Department of Energy

Office of Geologic Disposal US Bureau of Land Management

Yucca Mountain Project Office New Mexico State OfficeAttn: Associate Director, RW-20 PO Box 1449

PO Box 98608 Santa Fe, NM 87507

Las Vegas, NV 89193-8608US Environmental Protection

US Department of Energy (3) Agency (2)

Nevada Operations Office Radiation Protection Programs

Attn: J.R. Boland Attn: M. Oge

D. Livingston ANR-460

P.K. Fitzsimmons Washington, DC 20460

2753 S. Highland Drive

Las Vegas, NV 89183-8518 US Environmental Protection

Agency, Region 6

US Department of Energy (2) Attn" C. Byrum, 6T-ETTechnical Information Center 1445 Ross Ave.

PO Box 62 Dallas, TX 75202

Oak Ridge, TN 37831

US Geological Survey (2)

US Department of Energy Water Resources DivisionLos Alamos Area Office Attn: C. Peters

528 35th Street 4501 Indian School NE

Los Alamos, NM 87544 Suite 200

Albuquerque, NM 87110

Dist-2

US Nuclear Regulatory Commission Bob Forrest

Division of Waste Management Mayor, City of CarlsbadAttn; H. Marson PO Box 1569

Mail Stop 4-H-3 Carlsbad, NM 88221

Washington, DC 20555Carlsbad Department of Development

US Nuclear Regulatory Commission (4) Executive Director

Advisory Committee on Nuclear Waste Attn: C. BernardAttn: D. Moeller PO Box 1090

M.J. Steindler Carlsbad, NM 88221

P.W. PomeroyW.J. Hinze New Mexico Environment Department

7920 Norfolk Ave. Secretary of the Environment (3)

Bethesda, MD 20814 Attn: J. EspinosaPO Box 968

Defense Nuclear Facilities Safety 1190 St. Francis DriveBoard Santa Fe, NM 87503-0968Attn: D. Winters

625 Indiana Ave. NW New Mexico Environment DepartmentSuite 700 Attn: P. McCasland

Washington, DC 20004 WIPP Project Site OfficePO Box 3090

Nuclear Waste Technical Review Board Carlsbad, NM 88221-3090

Attn: Library (2)

ii00 Wilson Blvd. New Mexico State Engineer's OfficeSuite 910 Attn: M. Chudnoff

Arlington, VA 22209-2297 PO Box 25102Santa Fe, NM 87504-51.02

Energy and Science DivisionOffice of Management and Budget Environmental Evaluation Group (5)Attn: K. Yuracko Attn: R. Neill

725 17th Street NW 7007 Wyoming Blvd. NE, Suite F-2

Washington, DC 20503 Albuquerque, NM 87109

State Agenci_ Advisoff Committ_ on NuclearFacility Salty

New Mexico Bureau of Mines

and Mineral Resources John F. Ahearne

Socorro, NM 87801 Executive Director, Sigma Xi99 Alexander Drive

New Mexico Energy, Minerals and Research Triangle Park, NC 27709

Natural Resources DepartmentAttn: Librarian James E. Martin

2040 South Pacheco 109 Observatory Road

Santa Fe, NM 87505 Ann Arbor, MI 48109

New Mexico Energy, Minerals and WIPP PanelofNationalR_earch Council's

Natural Resources Department Board on Radioactive W_te ManagementNew Mexico Radioactive Task Force (2)

(Governor's WIPP Task Force) Charles Fairhurst, Chairman

Attn" A. Lockwood, Chairman Department of Civil andMineral EngineeringC. Wentz, Policy Analyst

2040 South Pacheco University of Minnesota

Santa Fe, NM 87505 500 Pillsbury Dr. SEMinneapolis, MN 55455-0220

Dist-3

John O. Blomeke Thomas H. Pigford

3833 Sandy Shore Drive Department of Nuclear Engineering

Lenoir City, TN 37771-9803 4159 Etcheverry HallUniversity of California

John D. Bredehoeft Berkeley, CA 94720

Western Region HydrologistWater Resources Division Thomas A. Cotton

US Geological Survey (M/S 439) JK Research Associates, Inc.345 Middlefield Road 4429 Butterworth Place NW

Menlo Park, CA 94025 Washington, DC 20016

Rodney C. Ewing Robert J. Budnitz

Department of Geology President, Future Resources

University of New Mexico Associates, Inc.

Albuquerque, NM 87131 2000 Center Street, Suite 418Berkeley, CA 94704

B. John Garrick

PLG, Inc. C. John Mann4590 MacArthur Blvd. Department of GeologySuite 400 245 Natural History Bldg.

Newport Beach, CA 92660-2027 1301 West Green StreetUniversity of Illinois

Leonard F. Konikow Urbana, IL 61801

US Geological Survey431 National Center Frank W. Schwartz

Reston, VA 22092 Department of Geology and MineralogyThe Ohio State University

Jeremiah O'Driscoll Scott Hall

505 Valley Hill Drive 1090 Carmack Rd.Atlanta, GA 30350 Columbus, OH 43210

Chris G. Whipple NationalLaboratori_ICF Kaiser Engineers1800 Harrison St. Argonne National Laboratory (2)

Oakland, CA 94612-3430 Attn: A. SmithD. Tomasko

National Research Council (3) 9700 South Cass, Bldg. 201

Board on Radioactive Waste Management Argonne, IL 60439

HA 456

Attn: C.A. Anderson Battelle Pacific Northwest

P.B. Myers Laboratory (2)G.J. Grube Attn: S. Bates

2101 Constitution Ave. NW R.E. Westerman

Washington, DC 20418 MSIN P8-44Battelle Boulevard

Per_rmance Ass_smentP_r Review Panel Richland, WA 99352

G. Ross Heath Idaho National Engineering

College of Ocean and Fishery Laboratory (2)

Sciences, HN-15 Attn: H. Loo583 Henderson Hall R. Klinger

University of Washington Mail Stop 5108

Seattle, WA 98195 Idaho Falls, ID 83403-4000

Dist-4

Los A_amos National Laboratory (5) City of Albuquerque

Attn: B. Erdal, INC-12 Public Works Department

M. Ennis, HS-12 Utility Planning Division

Mail Stop J900 Attn: W.K. SummersS. Kosiewicz, EM-7 PO Box 1293

Mail Stop J595 Albuquerque, NM 87103L. Soholt, EM-13

Mail Stop M992 Deuel and Associates, Inc.J. Wenzel, HS-12 Attn: R.W. Prindle

Mail Stop K482 7208 Jefferson NE

PO Box 1663 Albuquerque, NM 87109Los Alamos, NM 87545

Disposal Safety, Inc.Oak Ridge National Laboratory Attn: B. Ross

Transuranic Waste Manager 1660 L Street NW, Suite 314

Attn: D.W. Turner Washington, DC 20036Bldg. 3047

PO Box 2008 Ecodynamics (2)

Oak Ridge, TN 37831-6060 Attn: P. RoacheR. Blaine

Pacific Northwest Laboratory PO Box 9229

Attn: B. Kennedy Albuquerque, NM 87119-9229PO Box 999

Richland, WA 99352 EG & G Idaho (3)1955 Fremont Street

Westinghouse-Savannah River Attn: C. Atwood

Technology Center (4) C. HertzlerAttn: N. Bibler T.I. Clements

J.R. Harbour Idaho Falls, ID 83415M.J. Plodinec

G.G. Wicks Geomatrix

Aiken, SC 29802 Attn: K. Coppersmith

I00 Pine St., Suite I000

San Francisco, CA 94111

Corporatio_/Membe_ ofthePublicGolder Associates, Inc.

Battelle Memorial Institute Attn: R. Kossik

Attn: R. Root 4104 148th Avenue NE

J. Kircher Redmond, WA 98052505 Marquette NW

Suite I INTERA, Inc.Albuquerque, NM 87102 Attn: A.M. LaVenue

1650 University Blvd. NE, Suite 300

Benchmark Environmental Corp. Albuquerque, NM 87102Attn: C. Frederickson

4501 Indian School NE INTERA, Inc.Suite 105 Attn: J.F. Pickens

Albuquerque, NM 87110 6850 Austin Center Blvd., Suite 300

Austin, TX 78731Beta Corporation Int.

Attn: E. Bonano INTERA, Inc.6613 Esther NE Attn: W. Stensrud

Albuquerque, NM 87109 PO Box 2123

Carlsbad, NM 88221

Dist-5

INTERA, Inc. Science Applications International

Attn: W. Nelson Corporation (SAIC)i01 Convention Center Drive Attn: H.R. Pratt

Suite 540 10260 Campus Point Drive

Las Vegas, NV 89109 San Diego, CA 92121

IT Corporation (2) Science Applications International

Attn: R.F. McKinney Corporation (2)

J. Myers Attn: D.C.Royer

Regional Office C.G. PflumSuite 700 i01 Convention Center Dr.

5301 Central Avenue NE Las Vegas, NV 89109

Albuquerque, NM 87108Science Applications International

John Hart and Associates, P.A. Corporation (3)Attn: J.S. Hart Attn: M. Davis

2815 Candelaria Road NW R. Guzowski

Albuquerque, NM 87107 J. Tollison2109 Air Park Road SE

John Hart and Associates, P.A. Albuquerque, NM 87106Attn: K. Lickliter

1009 North Washington Science Applications InternationalTacoma, WA 98406 Corporation (2)

Attn: J. YoungMAC Technical Services Co. D. Lester

Attn: D.K. Duncan 18706 North Creek Parkway, Suite ii08418 Zuni Road SE Bothell, WA 98011Suite 200

Albuquerque, NM 87108 Southwest Research InstituteCenter for Nuclear Waste Regulatory

Newman and Holtzinger Analysis (2)Attn: C. Mallon Attn: P.K. Nair

1615 L Street NW 6220 Culebra Road

Suite I000 San Antonio, TX 78228-0510

Washington, DC 20036Systems, Science, and Software (2)

RE/SPEC, Inc. (2) Attn: E. PetersonAttn: W. Coons P. LagusI4775 Indian School NE Box 1620

Suite 300 La Jolla, CA 92038

Albuquerque, NM 87110TASC

RE/SPEC, Inc. Attn: S.G. Oston

Attn: J.L. Ratigan 55 Walkers Brook Drive

PO Box 725 Reading, MA 01867

Rapid City, SD 57709Tech Reps, Inc. (6)

Reynolds Electric and Engineering Attn: J Chapman (2)

Company, Inc. C CrawfordAttn: E.W. Kendall D Marchand

Building 790 T PetersonWarehouse Row J Stikar

PO Box 98521 D Scott

Las Vegas, NV 89193-8521 5000 Marble NE, Suite 222

Albuquerque, NM 87110

Dist-6

Tolan, Beeson & Associates D.W. PowersAttn: T.L. Tolan Star Route Box 87

2320 W. 15th Avenue Anthony, TX 79821Kennewick, WA 99337

Shirley Thieda

TRW Environmental Safety Systems (2) PO Box 2109, RRIAttn: I. Sacks, Suite 800 Bernalillo, NM 87004

L. Wildman, Suite 13002650 Park Tower Drive Jack Urich

Vienna, VA 22180-7306 c/o CARD144 Harvard SE

Sanford Cohen and Associates Albuquerque, NM 87106Attn: J. Channell

7101 Carriage Rd NE Unive_iti_Albuquerque, NM 87109

University of California

Westinghouse Electric Corporation (5) Mechanical, Aerospace, and

Attn: Library Nuclear Engineering Department (2)C. Cox Attn: W. Kastenberg

L. Fitch D. Browne

B.A. Howard 5532 Boelter Hall

R.F. Kehrman Los Angeles, CA 90024

PO Box 2078

Carlsbad, NM 88221 University of CaliforniaEngineering and Applied Science Attn:

Westinghouse Hanford Company D. Okrent

Attn: D.E. Wood, MSIN HO-32 48-121A Engineering IVPO Box 1970 Los Angeles, CA 90024-1597

Richland, WA 99352University of California

Western Water Consultants Mine Engineering Department

Attn: P.A. Rechard Rock Mechanics Engineering

PO Box 4128 Attn: N. Cook

Laramie, WY 82071 Berkeley, CA 94720

Western Water Consultants University of Hawaii at HiloAttn: D. Fritz Business Administration

1949 Sugarland Drive #134 Attn: S. HoraSheridan, WY 82801-5720 Hilo, HI 96720-4091

P. Drez University of New Mexico

8816 Cherry Hills Road NE Geology Department

Albuquerque, NM 87111 Attn: LibraryAlbuquerque, NM 87131

David Lechel

9600 Allende Rd. NE University of New Mexico

Albuquerque, NM 87109 Research AdministrationAttn: H. Schreyer

C.A. Marchese 102 Scholes Hall

PO Box 21790 Albuquerque, NM 87131

Albuquerque, NM 87154University of Wyoming

Arend Meijer Department of Civil Engineering3821 Anderson SE Attn: V.R. Hasfurther

Albuquerque, NM 87108 Laramie, W-Y 82071

Dist-7

University of Wyoming Gordon S. Linsley

Department of Geology Division of Nuclear Fuel Cycle andAttn: J.I. Drever Waste Management

Laramie, W'Y 82071 International Atomic Energy AgencyPO Box i00

University of Wyoming A-1400 Vienna, AUSTRIA

Department of MathematicsAttn: R.E. Ewing Nicolo Cadelli

Laramie, WY 82071 Commission of the EuropeanCommunities

Libra_ 200, Rue de la Loi

B-IO49 Brussels, BELGIUM

Thomas Brannigan Library

Attn: D. Dresp R. Heremans

106 W. Hadley St. Organisme Nationale des D_chetsLas Cruces, NM 88001 Radioactifs et des Mati_res Fissiles

(ONDRAF)

New Mexico State Library Place Madou I, Boitec 24/25

Attn: N. McCallan B-I030 Brussels, BELGIUM

325 Don GasparSanta Fe, NM 87503 J. Marivoet

Centre d'Etudes de l'Energie

New Mexico Tech Nucl@aire (CEN/SCK)

Martin Speere Memorial Library Boeretang 200

Campus Street B-2400 Mol, BELGIUM

Socorro, NM 87810P. Conlon

New Mexico Junior College Waste Management Division

Pannell Library Atomic Energy Control Board (AECB)Attn: R. Hill PO Box 1046

Lovington Highway Ottawa, Ontario KIP 559, CANADA

Hobbs, NM 88240

A.G. Wikjord

Carlsbad Municipal Library Manager, Environmental and SafetyWIPP Public Reading Room Assessment Branch

Attn: L. Hubbard Atomic Energy of Canada Limited

I01 S. Halagueno St. Whiteshell Research EstablishmentCarlsbad, NM 88220 Pinewa, Manitoba ROE ILO

CANADA

University of New Mexico

Zimmerman Library Teollisuuden Voima Oy (TVO) (2)Government Publications Department Attn: Timo Aik_s

Albuquerque, NM 87131 Jukka-Pekka SaloAnnankatu 42 C

NEA/Per_rmance Ass_smentAdvisory SF-O0100 Helsinki Suomi

Group(PAAG) FINLAND

P. Duerden Timo Vieno

ANSTO Technical Research Centre of Finland

Lucas Heights Research Laboratories (VTT)

Private Mail Bag No. I Nuclear Energy LaboratoryMenai, NSW 2234 PO Box 208

AUSTRALIA SF-02151 Espoo, FINLAND

Dist-8

Division de la S_curit_ et de la T6nis PappProtection de l'Environment (DSPE) Swedish Nuclear Fuel and Waste

Commissariat _ l'Energie Atomique Management Co.

Agence Nationale pour la Gestion des Box 5864

D_chets Radioactifs (ANDRA) (2) S 102 48 StockholmAttn: G_rald Ouzounian SWEDEN

M. Claude Ringeard

Route du Panorama Robert Schuman Conny H_ggB. P. No. 38 Swedish Radiation Protection

F-92266 Fontenay-aux-Roses Cedex Institute (SSI)FRANCE Box 60204

S-I04 Ol Stockholm

Claudio Pescatore SWEDEN

Division of Radiation Protection and

Waste Management J. Hadermann

OECD Nuclear Energy Agency Paul Scherrer Institute

38, Boulevard Suchet Waste Management Programme

F-75016 Paris, FRANCE CH-5232 Villigen PSISWITZERLAND

M. Dominique Greneche

Co_nissariat _ l'Energie Atomique J. Vigfusson

IPSN/DAS/SASICC/SAED HSK-Swiss Nuclear Safety Inspectorate

B.P. No. 6 Federal Office of Energy

F-92265 Fontenay-aux-Roses Cedex CH-5232 Villigen-HSKFRANCE SWITZERLAND

Robert Fabriol D.E. Billington

Bureau de Recherches G_ologiques et Departmental Manager-AssessmentMini_res (BRGM) Studies

B.P. 6009 Radwaste Disposal R&D Division

45060 Orl_ans Cedex 2, FRANCE AEA Decommissioning & Radwaste

Harwell Laboratory, B60

P. Bogorinski Didcot Oxfordshire OXII ORAGesellschaft f_r Reaktorsicherheit UNITED KINGDOM

(GRS) MBH

Schwertnergasse I P. Grimwood

D-5000 K61n i, GERMANY Waste Management UnitBNFL

R. Storck Sellafield

GSF - Institut fur Tieflagerung Seascale, Cumbria CA20 IPGTheodor-Heuss-Strabe 4 UNITED KINGDOM

D-3300 Braunschweig, GERMANY

Alan J. HooperFerrucio Gera UK Nirex Ltd

ISMES S.p.A Curie Avenue

Via del Crociferi 44 Harwell, Didcot

1-00187 Rome, ITALY Oxfordshire, OXII ORHi

UNITED KINGDOM

Hiroyuki Umeki

Isolation System Research Program Jerry M. Boak

Radioactive Waste Management Project Yucca Mountain Project Office

Power Reactor and Nuclear Fuel US Department of EnergyDevelopment Corporation (PNC) PO Box 98608

1-9-13, Akasaka, Minato-ku Las Vegas, NV 89193Tokyo 107, JAPAN

Dist-9

Seth M. Coplan (Chairman) Pedro Prado

US Nuclear Regulatory Commission CIEMAT

Division of High-Level Waste Instituto de Tecnologla Nuclear

Management Avenida Complutense, 22Mail Stop 4-H-3 E-28040 Madrid, _PAIN

Washington, DC 20555Nils A. Kjellbert

A.E. Van Luik Swedish Nuclear Fuel and Waste

INTERA/M&O Management Company (SKB)

The Valley Bank Center Box 5864I01 Convention Center Dr. S-I02 48 Stockholm, SWEDEN

Las Vegas, NV 89109Bj6rn Cronhjort

NEA/Probabilistic System Assessment Royal Institute of TechnologyGroup (PSAG) Automatic Control

S-100 44 Stockholm, SWEDENShaheed Hossain

Division of Nuclear Fuel Cycle and Richard A. Klos

Waste Management Paul-Scherrer Institute (PSI)

International Atomic Energy Agency CH-5232 Villingen PSI, SWITZERLANDWagramerstrasse 5

PO Box i00 Nationale Genossenschaft f_r die

A-1400 Vienna, AUSTRIA Lagerung Radioaktiver Abf_lle (2)Attn: C. McCombie

Alexander Nies (PSAC Chairman) F. Van DorpGesellschaft f_r Strahlen- und Hardstrasse 73

Institut fur Tieflagerung CH-5430 Wettingen, SWITZERLANDAbteilung fur Endlagersicherheit

Theodor-Heuss-Strasse 4 N.A. Chapman

D-3300 Braunschweig Intera Information TechnologiesGERMANY Park View House

14B Burton Stzeet

Eduard Hofer Melton MowbrayGesellschaft f_r Reaktorsicherheit Leicestershire LEI3 IAE

(GRS) MBH UNITED KINGDOM

Forschungsgel_nde

D-8046 Garching, GERMANY Daniel A. Galson

Galson Sciences Ltd.

Andrea Saltelli 35, Market PlaceCommission of the European Oakham

Communities Leicestershire LEI5 6DT

Joint Resarch Centre of Ispra UNITED KINGDOM

1-21020 Ispra (Varese)

ITALY David P. Hodgkinson

Intera Information TechnologiesAlejandro Alonso 45 Station Road, Chiltern House

C_tedra de Tecnologia Nuclear Henley-on-ThamesE.T.S. de Ingenieros Industriales Oxfordshire RG9 IATJose Guti_rrez Abascal, 2 UNITED KINGDOM

E-28006 Madrid, SPAIN

Brian G.J. Thompson

ENRESA (2) Department of the Environment: Her

Attn: M. A. Cu_ado Majesty's Inspectorate of Pollution

F. J. Elorza Room A5.33, Romney HouseCalle Emilio Vargas, 7 43 Marsham Street

E-28043 Madrid, SPAIN London SWIP 2PY, UNITED KINGDOM

Dist-lO

Intera Information Technologies Alain Galli

Attn: M.J.Apted Centre de Geostatistique3609 South Wadsworth Blvd. Ecole des Mines de Paris

Denver, CO 80235 35 Rue St. Honore

77035 Fontainebleau, FRANCE

US Nuclear Regulatory Commission (2)Attn: R. Codell Christian Ravenne

N. Eisenberg Geology and Geochemistry Division

Mail Stop 4-H-3 Institut Francais du P_trole

Washington, DC 20555 I & 4, Av. de Bois-Pr_au B.P. 31192506 Rueil Malmaison Cedex

Battelle Pacific Northwest FRANCE

Laboratories

Attn: P.W. Eslinger Peter Grindrod

MS K2-32 INTERA Information Technologies Ltd.PO Box 999 Chiltern House

Richland, WA 99352 45 Station Road

Henley-on-Thames

Center for Nuclear Waste Regulatory Oxfordshire, RG9 IAT, UNITED KINGDOM

Analysis (CNWRA)

Southwest Research Institute Alan Gutjahr

Attn: B. Sagar Department of Mathematics

PO Drawer 28510 New Mexico Institute of Mining and

6220 Culebra Road TechnologySan Antonio, TX 78284 Socorro, NM 87801

Geostatisti_ ExpertWorking Group(GXG) C. Peter Jackson

Harwell LaboratoryRafael L. Bras Theoretical Studies Department

R.L. Bras Consulting Engineers Radwaste Disposal Division

44 Percy Road Bldg. 424.4Lexington, MA 02173 Oxfordshire Didcot Oxon OXII ORA

UNITED KINDGOMJesus Carrera

Universidad Polit_cnica de Catalu_a Rae Mackay

E.T.S.I. Caminos Department of Civil Engineering

Jordi, Girona 31 University of Newcastle Upon Tyne

E-08034 Barcelona Newcastle Upon Tyne NEI 7RUSPAIN UNITED KINGDOM

Cedeon Dagan Steve Gorelick

Department of Fluid Mechanics and Department of Applied Earth Sciences

Heat Transfer Stanford UniversityTel Aviv University Stanford, CA 94305-2225PO Box 39040

Ramat Aviv, Tel Aviv 69978 Peter Kitanidis

ISRAEL 60 Peter Coutts Circle

Stanford, CA 94305Ghislain de Marsily (GXG Chairman)

University Pierre et Marie Curie Dennis McLaughlin

Laboratorie de Geologie Applique Parsons Laboratory4, Place Jussieu Room 48-209

T.26 - 5e etage Department of Civil Engineering

75252 Paris Cedex 05 Massachusetts Institute of TechnologyFRANCE Cambridge, MA 02139

Dist-ll

Shlomo P. Neuman Bundesministerium fur Forschung und

College of Engineering and Mines TechnologieDepartment of Hydrology and Water Postfach 200 706Resources 5300 Bonn 2, GERMANY

University of Arizona

Tucson, AZ 85721 Bundesanstalt fur Geowissenschaftenund Rohstoffe

Yoram Rubin Attn: M. Langer

Department of Civil Engineering Postfach 510 153

University of California 3000 Hanover 51, GERMANY !

Berkeley, CA 94720Gesellschaft fur Reaktorsicherheit

Foreign Addr_s_ (GRS) (2)Attn: B. Baltes

Studiecentrum Voor Kernenergie W. Muller

Centre D'Energie Nucleaire Schwertnergasse I

Attn: A. Bonne D-5000 Cologne, GERMANYSCK/CEN

Boeretang 200 Institut fur Tieflagerung (2)B-2400 Mol Attn: K. Kuhn

BELGIUM Theodor-Heuss-Strasse 4

D-3300 Braunschweig, GERMANYAtomic Energy of Canada, Ltd. (3)

Whiteshell Research Establishment Physikalisch-TechnischeAttn: M.E. Stevens Bundesanstalt

B.W. Goodwin Attn: P. Brenneke

D. Wushke Postfach 33 45

Pinewa, Manitoba ROE ILO, CANADA D-3300 Braunschweig, GERMANY

Juhani Vira Shingo Tashiro

Teollisuuden Voima Oy (TVO) Japan Atomic Energy ResearchAnnankatu 42 C Institute

SF-O0100 Helsinki Suomi Tokai-Mura, Ibaraki-Ken

FINLAND 319-ii, JAPAN

Jean-Pierre Olivier Netherlands Energy Research

OECD Nuclear Energy Agency (2) Foundation (ECN)38, Boulevard Suchet Attn: L.H. Vons

F-75016 Paris 3 WesterduinwegFRANCE PO Box i

1755 ZG Petten, THE NETHERLANDSD. Alexandre, Deputy Director

ANDRA Johan Andersson

31 Rue de la Federation Swedish Nuclear Power Inspectorate

75015 Paris Statens K_rnkraftinspektion (SKI)FRANCE Box 27106

S-I02 52 Stockholm, SWEDENClaude Sombret

Centre D'Etudes Nucleaires Fred Karlsson

De La Vallee Rhone Svensk Karnbransleforsorjning AB

CEN/VALRHO Project KBSS.D.H.A. B.P. 171 Box 5864

30205 Bagnols-Sur-Ceze, FRANCE S-IO2 48 Stockholm, SWEDEN

Dist-12

Nationale Genossenschaft f_r die 6306 A.L. Stevens

Lagerung Radioaktiver Abfalle (2) 6312 F.W. BinghamAttn: S. Vomvoris 6313 L.S. Costin

P. Zuidema 6331 P.A. Davis

Hardstrasse 73 6341 Sandia WIPP Central Files (I00)

CH-5430 Wettingen, SWITZERLAND 6342 D.R. Anderson6342 Staff (30)

AEA Technology 6343 V. Harper-Slaboszewicz

Attn: J.H. Rees 6343 Staff (3)

D5W/29 Culham Laboratory 6345 R.C. Lincoln

Abington 6345 Staff (9)Oxfordshire OXI4 3DB, UNITED KINGDOM 6347 D.R. Schafer

6348 J.T. Holmes

AEA Technology 6348 Staff (4)

Attn: W.R. Rodwell 6351 R.E. Thompson

O44/A31 Winfrith Technical Centre 6352 S.E. SharptonDorchester 6400 N.R. Ortiz

Dorset DT2 8DH, UNITED KINGDOM 6613 R.M. Cranwell6613 R.L. Iman

AEA Technology 6613 C. LeighAttn: J.E. Tinson 6622 M.S.Y. Chu

B4244 Harwell Laboratory 6641 R.E. Luna, Acting

Didcot, Oxfordshire OXII ORA 714.1 Technical Library (5)UNITED KINGDOM 7151 Technical Publications

7613-2 Document Processing for

D.R. Knowles DOE/OSTI (I0)

British Nuclear Fuels, plc 8523-2 Central Technical Files

Risley, WarringtonCheshire WA3 6AS, 1002607UNITED KINGDOM

Internal

I A Narath

20 O E Jones

1502 J C Cummings

1511 D K Gartling4511 D P Garber

6000 D L Hartley6115 P B Davies

6115 R L. Beauheim

6119 E D. Gorham

6119 Staff (14)6121 J.R. Tillerson

6121 Staff (7)

6233 J.C. Eichelberger6300 D.E Ellis

6302 L.E Shephard

6303 S.Y Pickering6303 W.D Weart

6305 S.A Goldstein

6305 A.R Lappin

, U.S,GovernmentPrintingOffice1994-573-110-02039 Revised: 13 OCT 93Dist-13

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