ML20214N863
| ML20214N863 | |
| Person / Time | |
|---|---|
| Issue date: | 04/14/1987 |
| From: | Smykowski S NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Pangburn G NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| REF-WM-60 NUDOCS 8706030114 | |
| Download: ML20214N863 (2) | |
Text
l Ukn-GO RIVERTON RAP /5/7/87 APR 141987 MEMORANDUM FOR: George Pangburn Operations Branch Division of Low-Level Management and Decommissioning FROM: Steve Smykowski Technical Branch Division of Low-Level Management and Decommissioning
SUBJECT:
ENGINEERING AND RADIOLOGICAL REVIEW 0F THE DRAFT REMEDIAL ACTION PLAN FOR THE RIVERTCN, WYOMING PROCESSING SITE (MAY 1987)
As requested by Giorgio Gnugnoli, I have reviewed the geotechnical engineering ar.d radiological sections of the subject document. As a result of my review, I am providing a comment which addresses DOE's excavation of the contaminated material. Other geotechnical engineering and radiological aspects of the proposed remedial action for clean-up of the processing site and transport of the contaminated material to the disposal site are satisfactory.
There are two suggestions which should be considered by URF0 when reviewing the Remedial Action Plan for the disposal facility. First, controlled placement of the Title I material to the Title II disposal facility could lead to the relaxation of some design requirements for meeting the governing EPA standards when the disposal facility is eventually closed. Construction costs of the disposal facility operator can thereby be reduced while still providing reasonable assurance that the governing safety standards will be met. Second, the disposal facility operator may want to characterize the Title II tailings material before they are commingled with Title I material. This characterization will provide useful information to the operator and the NRC for determining whether the prcposed remedial action for disposal will meet the governing EPA and NRC standards when the facility is closed.
I would be happy to discrss this review at your convenience.
0-iginc.1 Signed By Steve Smykowski Technical Branch Division of Low-Level Management and Decommissioning
Enclosure:
As stated WM Record file y; q g, g ho CD.utth,[
PD 870603gQ070414 LM _ _
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UMTRA DOCUMENT REVIEW FORM SECTION 1 Site: Riverton, WY Date: May 6, 1987 Document: draft RAP ( April ,1987)
Comentor: NRC Comment: 1 Page: B.5 A review of the sampling data presented in Appendix C of the draft PSCR (June, 1984) indicates that the radiological characterization did not determine the full extent or level of contamination. Samples obtained at the bottom of several boreholes show high Ra-226 concentrations which indicate that the depth of contamination is greater than the depth of characterization. The uncertainty associated with the extent of contamination can result in underexcavation of the contaminated materia]. If additional radiological characterization is not performed prior to construction, then DOE should understand that continual testing of the material for Ra-226 levels during clean-up operations would be necessary to assure that all contaminated material has been excavated.
SECTION 2 l Response: Page By: Date:
Plans for Implementation:
SECTION 3 Confirmation of Implementation:
Checked by: , Date:
Approved by: ,Date:
Y