ML20215H982
| ML20215H982 | |
| Person / Time | |
|---|---|
| Issue date: | 01/22/1987 |
| From: | Corrado J NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Rachel Johnson NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| REF-WM-16 1560, HLWR, NUDOCS 8705070173 | |
| Download: ML20215H982 (7) | |
Text
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. JAN 2 21987
[106/JC/87/01/20 MEMORANDUM FOR: Robert Johnson, Salt Repository Project Manager Repository Projects Rranch THRU: John Trapp, Acting 9ection leader Geology / Geophysics Section Geotechnical Branch FROM: Julia Corrado Geology / Geophysics Section Geotechnical Eranch
SUBJECT:
TRIP REPORT FOR APPENDIX 7 ASSIGNMENT TO DOE-SRPG, COLUMBUS, OH, SEPTEMPER 29 - OCTOBER 1, 1986 Enclosed please find the final Trip Report for the September 29 - October 1, 1986 Geology / Geophysics Appendix 7 visit to 00E-SRP0, Columbus, OH. Dr. Tilak Verma, the NRC on-site representative at the time of the Appendix 7 visit, commented on the draft Trip Report, and the report was revised on the basis of his comments.
This action fulfills Geotechnical Branch documentation requirements for Appendix 7 assignments as stated in the February 27, 1986 memorandum to WM staff on Appendix 7 site assignments.
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Julia Corrado Geology / Geophysics Section Geotechnical Branch
Enclosure:
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1 TRIP REPORT T0: Robert Johnson, Salt Pepository Project Manager Repository Projects Branch FROM: JulIa Corrado, Geology / Geophysics Section Geotechnical Branch John Trapp, Acting Section Leader Geology / Geophysics Section Geotechnical Branch PLACE VISITED: Department of Energy, Salt Repository Projects Office Columbus, Ohio DATES OF TRIP: September 29 - October 1, 1986 PERSONS CONTACTED: G. Appel, A. Avel, T. Baillieul, I. Cottle, M. Ferrigan.
J. Griffin, .1 Hammond, J. Hileman, H. Kalia, R. Kingsley, D. Kopp, C. Kuhns, il. Neff, W. Newcomb, K. Oschman, i.t Dowell, K. Robinette, V. Rutskauskas, J. Sherwin, O. Swanson, D. Turner, and S. Webster PURPOSE OF TRIP:
- To conduct preliminary " scoping" review of SDP0 data and/or planned activities related to geological and oeophysical aspects of site characterization at the Deaf Smith site.
- To obtain familiarization with overall geolooy/ geophysics program (networks) and investigation plans to help prioritize future NRC activities.
- To focus specifically on information and plans related to NRC preliminary significant concerns in geology.
- To meet with and discuss program plans with key SRPG and l
ONWI staff.
las per NRC Checklist for Appendix 7 Site Assignmenti ACCOMPLISHMENTS: ' Discussed SRPG program networks WBS 3, 4, and 5 with SRP0/0NWI personnel.
-Networks are detailed, contain extensive cross-referencing, and activities and products appear to be tied into a rigid schedule. Networks call for most site preparation work to be completed prior to submittal of i
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2 the Site Characterization Plan (SCP) to NRC. Shaft sinking is scheduled to follow receipt of NRC comments on the planned shaft sinking activities described in the SCP, although " site preparation" work prior to sub-mittal of the SCP may involve excavating as deep as 100' from the surface without constituting " shaft sinking" in the view of SRPO. The networks call for two 4-mile 4
seismic lines across the EDBH locations to be completed prior to start of EDBH activities. Shaft completion is scheduled for 27 months following ground-breaking, i Reviewed SRP0/0NWI plans for In-Situ Test Program and Geologic Mapping in Exploratory Shaft Facility (ESF)
-Connection of two 12' diameter shafts defines commencement of the testing program. At this time, SRP0 has imposed MSHA gassy mine requirements upon itself on-subsurface excavation activities.
-Geologic testing in the ESF will include lithologic, structural, and geohydrologic characterization. Core i samples will be obtained for rock mechanics, water, and 4 gas sample collection. Geophysical logging will be per-formed for lithologic, stratigraphic and rock properties 4
information, as well as information on structural discont-inuities and existence of rock mass cavities. Seismic monitoring will be performed to detect natural and induced i seismicity. Electric resistivity surveying to determine conductivity and corrosive properties, and gravity surveys to identify anomalous zones on basis of density variation will also be performed.
"Obtained familiarization with SRP0/0NWT draft technical and planning documents (Attachment Al through NRC On-Site
- Representative. A number of these documents will be requested formally through the Pranch Chief, Repository Projects Rranch.
- Carried out informal discussion on performance allocation with SRP0/0NWI personnel.
! "Deviewed status of SRP0/0NWI Synthetic Data Base, seismic portion of shaft design guide, and Surface l Investigation Plan (SIP).
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-The Synthetic Data Base includes a hydrogeologic parameter tratrix, shaft groundwater inflo, rock / soil mechanics data, seismic design data, and a hypothetical core log. There are no site-specific data at present. Fluor Technolooy, Inc. is doing a sensitivity study or " variance analysis" on input parameters. Eventually, site-specific data will be compared with synthetic data. SRP0 hopes that the site-specific data will be confirmatory. The importance of electric logging in data collection was emphasized.
-3 shaft monitoring wells are planned for each of the EDBHs.
A total of 50 ESF foundation borings is planned. The first seismic survey is planned along the EDRHs. (2 four mile lines, the north-south line to be extended south to tie in with others.) Questions on mining-induced motion, thermal heave and subsidence and compliance with 10CFR72.66 were raised.
-The SIP is divided into 4 chapters entitled Introduction.
Environmental and Socioeconomic Concerns, Design, and The Site, respectively. Chapter 4 includes an extremely de-tailed matrix relating Site Study Plan (SSP) activities to issues and information needs. Issues related to key issues
" Repository Post-Closure Isolation Capability" and "Feasi-bility and Associated Costs" are listed on Attachment 8.
(The matrix also includes an additional level of detail i on information Needs related to specific issues.)
" Conducted informal discussions on plan for seismic investigations and development of 3-D seismic model of Palo Duro Rasin. Examined seismic reflection profiles A, 0, and 9 near Deaf Smith site. l
-Seismic reflection profiles of seismic lines A, 0, and R as reprocessed by Dawson and Co., Denver, C0 were observed.
These profiles are being examined for evidence of a postulated fault extending toward and possibly beneath the site. DOE is in the process of procuring proprietary seismic reflection for the Palo Duro Rasin from Penn7 oil.
The exact location of the lines is not known at this time.
'4 hen the data are obtained, it will take approximately 3-4 nonths to process it and 3-4 months to interpret them.
The prcprietary data will be analyzed before any further
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DOE lines are run. The Seismic Acoustics Laboratory (SAL) at the University of Houston is currently developing a 3-D model for basement through Dockum units. The model is 24" square and 8" thick and made of rubber and will be placed in a water tank to help with coupling (transducers). Tests will be run and data generated in much the same way as field data. SRP0 will use the model to determine how well faults can be detected in relation to how they are oriented.
Discussed field activities readiness review with SRP0/0NWI personnel.
-This review was performed to determine readiness to begin surface based field work and ESF testing. A similar readi-ness review on the SCP is now underway.
' Exit interview with Jefferson 0. Neff.
PROBLEMS ENCOUNTERED: None.
PENDING ACTIONS: We are preparing a request that DOE transmit to NRC numerous planning and technical documents which we were permitted to view but not retain (Attachment A1 RECOMMENDATIONS: For the near term, we recommend additional Appendix 7 visits for NRC staff in geology / geophysics to monitor SRP0 progress on the SIP and the SSPs in anticipation of a formal review of these documents in 1987. In planning future Appendix '
visits, we suggest that attendance in the discussions be coordinated between NRC and DOE so as to increase the opportunity for one-on-one discussions between principal technical staff. Lastly, we urge that NRC closely follow development of the WBS networks because it appeared 1 to us that the schedule built into the networks is very tight leaving little leeway for ad.4ustments resulting from NRC-DOE interactions during the pre-licensing period.
Julia Corrado John Trapp i
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ATTACHMENT A
- 1) Synthetic Geotechnical Design Reference Data for the Deaf Smith Site
- 2) At-Depth Instrumentation and Testing Plan
- 3) SRP Shaft Design Guide Seismic Data Base Working Draft
- 4) Data Acquisition Plan - Deaf Smith County - Scoping Document
- 5) ONWI Position and Recommendation on Need for Geologic Mapping of SRP Exploratory Shafts
- 6) Letter report on reprocessing of seismic lines
- 7) Palo Duro Microearthquake Network Operation Report - July-December 1985
- 8) Issues Hierarchy, Resolution Strategy, and Information Needs for Site Characterization and Environmental / Socioeconomic Evaluation (July 1985)
- 9) Information and Data Needs Categorized By Technical Discipline
- 10) Systems Engineering and Management Document
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ATTACHME'NT B SELECTED ISSUES RELATED TO SITE STUDY PLAN ACTIVITIES 1.0 Repository Post-Closure Isolation Capability 1.1 Geohydrologic setting 1.2 Compatible geochemistry 1.3 Compatible host rock 1.4 Compatible erosion conditions 1.5 Compatible future climate 1.6 Compatible rock dissolution conditions 1.7 Compatible tectonic environment 1.8 Effects of human activities 1.9 Engineered barrier performance 1.10 Groundwater travel time 1.11 Repository system performance 1.12 Site comparison scenarios 1.13 Groundwater protection 1.14 Individual protection 4.0 Feasibility and Associated Costs 4.1 Waste package 4.2 Surface characteristics 4.3 Extent of host salt 4.4 Geohydrology 4.5 Effects of natural phenomena 4.6 Worker and health safety 4.7 Closure 4.8 Retrieval 4
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