ML19332D212
| ML19332D212 | |
| Person / Time | |
|---|---|
| Issue date: | 11/20/1989 |
| From: | Tokar M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Ryan M CHEM-NUCLEAR SYSTEMS, INC. |
| References | |
| REF-WM-98 NUDOCS 8911300168 | |
| Download: ML19332D212 (2) | |
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' ~ Dr. 'Mich'ael Ryan :
. Executive Director M
- Regulatory Aff airs >
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- 220 Stoneridge Drive:
, Columbia,~SC 29210,
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Dear. Dr. Pyan:
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lAs:a follow-up to the telephone discussion.between Bill House and Keith
'McDaniel of our respective staffs, we are enclosing'a. request for information' 1
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' on the Process Control Program (PCP) to be followed by Chem-Nuclear'in your.
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waste cement solidification efforts. The enclosure is intended to identify
- the specific information that would be presented in a PCP document and which would typically accompany a waste: cement solidificatinn topical report.
It.is l
' anticipated that the requested PCP information.will be submitted by..
Chem-Nuclear. at the same time your res)onses are provided to theLsecond round 4
- review comments on topical report #3 W11ch will be transmitted to you by.
. November 17. 1989.
'PleaseLfeelfreetocontactme(301-402-0590) orKeithMcDaniel(301-492-3448).
4 ifayou.havelany questions Sincerely,_
m Oridinul/ Signed By 4
i Michael Tokar, Section. Leader
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Technica1' Branch f
' Division of. Low-Level Waste Management and Decommissioning, NMSS n
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Enclosure:
.As stated.
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' Distribution:. " Centra 1MFiTFFWM&9p 1
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NMSS r/f LLTB r/f JSurmeier KMcDanieli L HTokar MBell!
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Reason:
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- SUBJECT ABSTRACT:
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fgf 8911300168 891120 0FFICIAL RECORD COPY I
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PDR WASTE 1
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m RE IEEEETIM W 'HE IMGIE MMMEL PRIEW h vendor is zwauested to prtwide as part of the waste fors qualification topical rwport, the infomation identified herein regartling the process control program (PCP). As indicated in the Branch TP on Weste Form,_ a PCP is to be
- used.to assure that the solidification pavoess will consistently produce a
. Product which is aooeptable for disposal.
Specifically, the information on the
' type and quantities, (e.g. volumes, weights) of the ingredients to be used in the cement waste form formulation for emoh waste stream should be prtwided as p
well as-the pr-Anos and details of the waste form preparation. h feed waste material should be solidified using the recipe that has been qualified L
for that waste strues. The details of the preparation of the verification sample should duplicate, to the extent practicable, those of the full-ecale field waste forms as well as those of the qualification program described in the topical report. The vendor should prtwide the above ruauested information for both the full-scale field weste forms (e.g., solidified linere or dnas) and for the PCP laboratory scale verification and surveillanos specimens. By supporting discussions and typical mixture calculations, the vendor should demonstrate how the recipes and details of pzwparation' for full-soale and laboratory-scale waste forms have been mrmlated. For each weste stroom the vendor should be specific in the typical mixture calculations, for example, i.
identify the ingredients (e.g., number of bass or weight of cement / additives
- and quantity of a particular waste per 100-cubic-foot liner) and show how those L
' calculated values correlate with the quantities of cement and waste used in the l'
paparation of the qualification and PT verification samples in the laboratory.
(Note that "ingsdients" include the waste, cement, additives, and added-water, and the details of preparation include the ortler of addition, and the method, procedures, temperatu m and time zwauired for mixing the ingredients and for curing of the waste form product.)
In the FCP, the vendor is zwauested to identify the acceptable ranges for all waste parameters (e.g. temperature, concentrations,-pH etc.) as had been determined in the qualification test program, h PCP should describe where adjustments could be made, if any, to the weste prior to solidificatien in the event certain waste parametere fell outside of the mooeptable range. '!his would only apply where adjustmente would not result in a waste strees that was chemically or physically different frem that qualified.
h PCP should indicate how representative samples of the feed waste are to be obtained for preparing PCP verification samples. The PCP needs to identify typical and==wh batch sises and the number of PCP specimens to be taken for each batch. 'the topical report should also explain how the number of PCP saeples per batch was established. The PCP needs to describe the time prior to full-scale solidification that the PCP verification saeples will be taken and prepared, the curing conditions (e.g. temperature, location) to be followed and the visual examinatims (e.g. checking for presence of free liquid, cracking, spalling or disintegration) and testing to be performed.
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