ML19341D677
| ML19341D677 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 04/03/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8104080393 | |
| Download: ML19341D677 (2) | |
Text
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Director of Nuclear Reactor Regulation A'[
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Attention:
Mr. A. Schwencer, Chief M
Licensing Branch No. 2 Division of Licensing
' Qip;.vy.,j U.S. Nuclear Regulatory Commission Vy'
'4ashington, CC 20555
Dear Mr. Schwencer:
In the Matter of the Application of
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Docket Nos. 50-327 Tennessee Valley Authority
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50-328 Enclosed is a status report on the Sequoyah Nuclear Plant Process Control Program as requested by your staff.
Very truly yours, TENNESSEE VALLEY AUTHORITY
.\\M'd L. M. Mills, Manager Nuclear Regulation and Safety this.3 '
.d subscribed be(ore me Sworn to day of /Lp,.D 1981
'hkM~1l.hhdA Notary Public My Commission Expires g/
Enclosure
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3.104080;393
y ENCLOSURE SEQUOYAH NUCLEAR PLANT PROCES5 CONTROL PROGRAM Dewatered resin will be generated at Sequoyah Nuclear Plant by using the plant's installed Chemical and Volume Control System (CVCS) (FSAR, section 9.3.4) and a portable radwaste demineralizer system.
The CVCS is used to maintain primary water chemistry during startup, shutdown, and normal operation of the reactor system. Exhausted resins will be sluiced from the installed plant demineralizers using approved plant operating instruc-tions f6r the system involved, to a 300-cubic-feet stainless steel spent-resin storage tank where it will be stored until final disposal at a burial site.
Then, using the appropriate. plant operating instruction, the resin is sluiced from the spent-resin storage tank to a container (186-cubic-feet liner) located in the equipment access portal, elevation 706, in the auxiliary building, and then dewatered using an approved plant operating procedure before shipment offsite to an NRC-licensed burial site (Chem-Nuclear Systems, Inc., located near Barnwell, South Carolina).
The portable demineralizer system consists of a prefilter and one or more 160-cubic-feet liner (s) in series containing new, regenerated resin lccated in the equipment ac:ess portal, elevation 706, in the auxiliary building. This system is used to treat liquid radwaste produced during startup, shutdown, and normal operation of the primary system and drains frcm plant process equipment which collect in central collector tanks (i.e., floor and equipment drain, tritiated drain, monitor, holdup, and laundry).
The resin is exhausted by pumping the contents of the collection tanks through the filter and liner. After exhaustion, the resin is dewatered using an approved plant operating procedure before ship-ment offsite to an NRC-licensed burial site (Chem-Nuclear Systems, Inc., near Barnwell, South Carolina).
When ' shielding is a requirement for transport offsite, all dewatered resin ship ed offsite will be transported in NRC approved shipping casks.
The burial ground criteria for accepting shipped dewatered resin is equal to or less than 1-percent water by volume or 1 gallon, whichever is less.
This criteria will be proven by testing wet resin contained in liners using the plant dewatering procedures until the procedures are demonstrated adequate.
An Office of Power Quality Assurance program for the inspection, control, and quality assurance of the plant equipment and dewatered resin which meet burial ground criteria has been established.
The Process Control Program (PCP) has been revised and the new revision will be submittea to NRC in Sequoyah's next semi-annual report due July 31, 1981.