ML20153F769
| ML20153F769 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 08/25/1988 |
| From: | Johnson I COMMONWEALTH EDISON CO. |
| To: | Murley T Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8809070461 | |
| Download: ML20153F769 (2) | |
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3 Commonwealth Edison
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/ One Fest Nabonal Ptaza. Chcago,1:hms l Ad@ess Reply to; Post Offde bot 7C u_ f Chcago, Ilhms 60690 0167 August 25, 1988 Wr. Thomas E. Hurley, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555 Subject Quad Cities Station Units 1 and 2 "Information Pertaining to Encapsulation of Chemical Decontamination Waste Liner" NRC_DockeLitoL_.50-251_anLio-2f 5 Reference (a):
Letter from I.M. Johnson to T.E. Hurley dated August 15, 1988.
Dear Mr. Hurley:
Reference (a) ?ransmitted information to your staff regarding the recent efforts to solidify a liner filled with decontaminatica solution (LCHI) at the Quad Cities Station which prematurely solidified. We transmitted to your staff, for thwir information, a copy of Revision 6 to the Quad Cities Station Process Control Program (PCP) for processing of radioactive wet waste dated July 1988. This revision to the PCP described the encapsulation method to be used to dispose of the affected liner. The purpose of this letter is to describe our revised plan for the treatment of this liner, as well as a discussion as to why these revisions were necessary. This subject was discussed with Mr.
B.
Siegel (NRR) in an August 18, 1983 telephone call.
The 14-170 liner of bed resin with LCHI decon solution has been safely stored at Quad Cities Station in a Chem Nuclear System (CNS)21-300 cash with additional shielding.
In preparation lor encapsulation and transport, to the burial site, the 14-170 liner was transferred into an encapsu'ation liner inside the cash to be used for transport. Upon completion of this transfer, additional precautionary direct radiation surveys were made. The surveys showed that, in order to meet the dose rate restrictions for the cask, t'epartment of Transportation (DOT) limits for weight restrictions would be exceeded.
As a. result, it was determined that the LOHI liner could not be transported offsite if the encapsulation were to take place at the station.
There is no licensed cash capable of transy rting the liner, after ddf 8809070461 000025 PDR ADOCK 05000254 p
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w T.E. Hurley August 25, 1988 encapsulation, due to the liner size and dose rates.
Iloweve r, the 14-170 liner can be properly trancported in the CNS 14-190H cask to the burial site where the encapsulation can be performed.
Commonwealth Edison has modified its plans as were described in earlier conversations and in Reference (a) as a result of this determination.
The trensfer of a LOH1 liner into a 14-190H Chem Nuclear Cask was performed on August 22, 1988.
We are currently in the process of transporting the cash to the Barnwell Durial Facility where encapsulation is expected to take place later in the week in a burial trench.
Encapsulation will be performed by Chem Nuclear and be observed by Commonwealth Edison personnel. The PCP revision, which was transmitted to your staff earlier, is still applicable to this process although the encapsalation itself will now be taking place at the Barnwell racility. Upon completion of the encapsulation, we anticipate that the liner will satisfy the stability criteria of 10 CTR 61 and meet the requirements delineated in the State of Sout.h Carolina Department of Health and Environmental Control (DHEC) license issued for the Barnwell Facility.
This matter has been discussed betweem Chem Nuclear and South Carolina DilEC officials and has been approved by DHEC.
Please direct any questions you may have regarding this matter to this office.
Very truly yours,
').
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hl g.
- 1. M. Johns Nuclear Licensing Administrator 1m cci Quad Citles Resident Inspector B. Siegel/T. Ross - NRR 5046K