ML20244B067
| ML20244B067 | |
| Person / Time | |
|---|---|
| Issue date: | 06/08/1989 |
| From: | Tokar M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Fliegel M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| REF-WM-68 NUDOCS 8906120262 | |
| Download: ML20244B067 (2) | |
Text
_
4
,a BJ/D0EAGMT. DOC g _ g )ggg i
I MEMORANDUM FOR: Myron Fliegel, Section Leader Operations Branch Division of Low-Level Waste Management and Decommissioning, NMSS FROM:
Michael Tokar, Section Leader i
Technical Branch Division of Low-Level Waste Management i
and Decommissioning, NMSS l
SUBJECT:
DOE's submittal on Green River UMTRA Project I
1
REFERENCES:
1.
Memo of April 6, 1989, from P. Lohaus to J. Greeves; Sub:
NRC/ DOE Green River Meeting of April 5,1989, documenting i
the NRC/D0E agreement.
1 2.
Letter of May 16, 1989 from M. Matthews of DOE t) P,Lohaus of NRC; submitting information in response to agreements reached in April 5, 1989, meeting with NRC.
As part of the agreement between NRC and DOE on the Green River project, the DOE was to submit information on physical properties and compaction data on tailings, windblown and other vicinity property contaminated materials (Reference 1).
By their letter of May 16, 1989 (Reference 2), the DOE has submitted the above agreed-to information on tailings, windblown and other l
vicinity property contaminated materials. The evaluation of the submitted information follows.
1 Tailings Material The submitted information consists of (1) two laboratory) Proctor compaction data, (2) nine field sand cone density test results, (3 one one-point Proctor test data. All the field density tests indicate a placement compaction density higher than the specified 90 percent Standard Proctor density, and therefore j
satisfy the placement. density criteria. However, the average placement volumetric moisture content is 5.7 percent which is higher than the maximum of 5.0 percent volumetric moisture content agreed-to et the April 5, 1989 meeting.
Windblown and other Vicinity Property Contaminated Materials The information submitted for windblown material consist of (1) nine gradatfor.
and nine Proctor compaction density test results, (2) one one-point Proctor
'ql compaction test data, and (3) five field sand cone density test results. The i
density tests, and (y) property material consist of (1) seven data for the vicinit field sand cone 2 moisture content data for corresponding tests and a few retests. There is no data on the gradation and compaction characteristics of l
the vicinity property materiel. DOE has treated both windblown and vicinity 8906220262 090608 PDR WASTE 1
/[f4
. WM-4fd
'Myron Fliegel
- 2_-
=,;
property materials as one material and has determined the average values for density and volumetric moisture content for the entire data set.
Even for this combined data set, the placement density is higher than the specified value and is satisfactory. However, the volumetric moisture content is 11.6 percent which is higher than the agread-to value of a maximum 10 percent moisture content. Again, this is not in agreement with the placement moisture content that was agrcGd-to at the April 5, 1989 meeting.
In addition to the above, statistically the number of data points or tests conducted are not adequate to make a supportable decision on the feasibility of compacting these materials at, or near their steady-state moisture contents.
Besides, the variation ~ of placement moisture contents for the vicinity property materials is significant and required retesting in many instances.
The staff does not agree with the DOE's assessment that the above placement moisture content is acceptable and is in compliance with the terms of the NRC/ DOE agreement. The staff would anticipate that DOE would reanalyze the impact of the higher moisture contents and provide the results to the NRC.
Since the submission of the information on May 16, 1989, the DOE may have accumulated additional data. Evaluating all the data accumulated to date may be useful, particularly in evaluating whether the trend for higher moisture contents for the materials placed in the disposal cell at the Green River site has continued.
This review was performed by Banad Jagannath; please contact him should you have any questions.
Originni'Si de D J Michael Tokar, Section leader Technical Branch Division of Low-Level Waste Management and Decommissioning, NMSS Distribution:
- CentralFil,e4WM-68; RBangart JGreeves KBell JSurmeier Ptohaus MTokar BJagannath SWastler i
LJahandari, LLTB rf l
JJones, LLOB rf NMSS rf PDR Yes:/ T PDR No:/
/ Reason:
Proprietary /
/ or CF Only /
/
ACNW Yes:Q/
No:/
/
~~
OFC :LLIB
- LLTB 8.!:lLTR
- LLWM
- LLWM
- NMSS
- KMSS
.......................y),...................................................
E[NSI..P.1$.S.I[...[.........[........[.........[..........[...........
DATE: ( / g /89
- b/8/89 : / /89 :
/ /89: / /89 : / /89 :
/ /89
__m_.m.___-___m__