ML20084G934
| ML20084G934 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 12/22/1971 |
| From: | Finfrock I JERSEY CENTRAL POWER & LIGHT CO. |
| To: | Morris P US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20084G932 | List: |
| References | |
| NUDOCS 8304270151 | |
| Download: ML20084G934 (2) | |
Text
{{#Wiki_filter:, 4 )', a p 6, d r# % V I, J) $ f7If Jersey Cent.rnl Power & Light Company \\h/ M ADI5oN AVENU E AT PUNCH OoWL Ro AD e MoRRISToWN, N.J. 07960 e 539 6111 December 22, 1971 /' hk I Ak,. h Division of Reactor Licensing d eePg M Dr. Peter A. Morris, Director c J M A )h @,'y, L9rd l United States Atomic Energy Commission 7 Ng Washington D. C. 205h5 g )
Dear Dr. Morris:
Subject:
Oyster Creek Station Docket No. 50-219 Radvaste Outside Tank Activity The purpose of this letter is to report to you recent difficulties we have experienced in maintaining the total radio-l activity in the outside radvaste tanks at Oyster Creek below 0 7 curies. I Beginning on November 14, 1971, continuing thereafter on j November 17, 23, and 29 through December 17, 1971; the outside tank activity exceeded 0.7 curies. On the first three instances the tanks were recycled thereby reducing the outside tank activity to less than 0 7 curies. The instance beginning November 29 involved a series of difficulties with the radvaste equipment, which, despite the best efforts of the plant staff, prevented the continuous recycling of water. With continued attention to tnese immediate equipment diffi-culties, the outside tank activity has been reduced belov 0 7 curies since December 17, 1971. f The underlying cause behind these events was the increased f [vaste water volume and its associated activity resulting from the b recent plant outage. In addition, plugging of the vaste concentrator and the subsequent rapid depletion of the radwaste demineraliter, did not permit normal processing to provide adequate inside tank storage capacity. These r.alfunctions caused a backlog in radvaste inventory which resulted in the necessity to divert water to the outside vaste i surge tank. Once it becomes necessary to use the 100,000-gallon vaste surge tank it is very difficult to remain below the existing Technical Specification limit of 0 7 curies. $4MocEON W I A 0A y,, v Vty 6 1:m.,, l - d tj h 6 'p v [ ;
F -- ( ) Dr. Peter A. Morris Pade II DUcember 22, 1971 -I l On the first three occasions, the outside storage tank water was recycled into radwaste for additional ~ processing. On the last occasion, difficulties described above prevented centinuous recycling. However, the following remedial actions were taken to reduce the outside tank activity:
- 1. Water was released from the outside tanks in accordance with provisions in the Technical Specifications.
- 2. Waste water was trucked off-site by a licensed carrier.
- 3. Immediate repair of the plugged waste concentrator was instituted.
- h. Priority was given to the regeneration of the radwaste de=ineralizer.
- 5. A conductivity cell was installed in the vaste concentrator output to minimize the possibility of prematurely depleting the radwaste demineralizer.
The present specification on liquid storage assumes that a minimum amount of liquid waste would require storage since discharges could be made continuously up to the limits of 10CFR20. However, the desire to maintain radioactive discharges to the environment as lov as practicable results in the necessity to retain the vaste on site to permit systematic processing by filtration, demineralization, and concentration. A change request is currently being submitted for your review that will appropriately revise the present Technical Specification on liquid storage to permit additional hold up for processing. In addition, more spare parts are being acquired for the waste concentrator and censideration is being given to the installaticn of a second vaste concentrator and demineralizer as a part of our plans for upgrading the radwaste treatment facility. i We are enclosing twenty-five copies of this report. Very truly yours, hdA , 4 h id Ivan R. Fin ock[Jr. Manager, Ut clear Generating Stations l IRF/pk t cc: Mr. J. P. O'Reilly, Director Division of Compliance, Region I i I = i.v J}}