ML19329F971
| ML19329F971 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 07/02/1980 |
| From: | Hovey G METROPOLITAN EDISON CO. |
| To: | Jay Collins Office of Nuclear Reactor Regulation |
| References | |
| TLL-316, NUDOCS 8007110422 | |
| Download: ML19329F971 (3) | |
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Metropolitan Edison Company
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Post Office Box 480 M ddletown, Pennsylvania 17057 717 9444041 writes oiTut Dial Number July 2, 1980
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TLL 316 TMI Program Office Attn:
Mr. J. T. Collins, Deputy Director U. S. Nuclear Eegulatory Commission c/o Three Mile Island Nuclear Station Middletown, Pennsylvania 17057
Dear Sir:
Three Mile Island Nuclear Station, Unit II (TMI-2)
Operating License No. DPR-73 Docket No. 50-320 Evaluation of EPICOR II Wastes The EPICOR II Radwaste System continues to process TMI-II Auxiliary and Fuel Handling Buildings contaminated water. The System has performed extremely well decontaminating water tell below cleanliness criteria. This performance has allowed using this processed water for decontamination purposes, and other transfer opera-tions, with minimal ALARA concerns. As of July 1, 1980, 365,055 gallens have been processed with 109,492 gallons remaining. A summary report is included as Attachment No. 1.
A detailed evaluation of System performance is the subject of another report being assembled. This letter is forwarded in response to NRC letter NRC/TMI-80-87, dated May 15, 1980.
Watcr cleanuo has resulted in the generation of sixty-four (64) spent resin liners as of July 1, 1980. These wastes contain contaminants, including fission products and chemicals removed from the water. This letter forwards information related to, and a discussion of, evaluations conducted to determine the condition of these vastes.
Spent resin liners removed from the EPICOR II Radwaste System are placed in Waste Staging Facilities until final disposition. These facilities are massive concrete structures all but precluding access to the liners. A sealed fifteen (15) ton concrete cap over each liner staging cell provide liners protection frem environ-mental conditions and essentially eliminates access by unauthorized personnel. The q
facility provides shielding allowing perrannel to work alongside and on top of the cells containing liners without radiation problems. This facility has well demon-strated the ability to satisfy stringent ALARA requirements. Attachment No. 2 provides a layout of the protective barriers associated with liner retention at Three Mile Island (TMI). This is a general layout presentation: should details be 1
necessary, they can be provided upon reauest.
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MetrocoL:an Ec. son Comer. s a :.teme c' tre Gre 3.:n :. e: 5.
TMI - II BCC LIST Mrs. Pat Higgins Mr. George Kulynych Edison Electric Institute Babcock & Wilcox 1111 19th Street, NW P.O. Box 1260 Washington, D.C.
20036 Lynchburg, VA 24505 Mr. E. L. Blake, Jr.
Mr. T. F. Hartley, Jr.
Shaw, Pittman, Potts & Trowbridge Marsh & McLennan, Inc.
1800 "M" Street, NW 1221 Avenue of the Americas Washington, D.C.
20036 New York, NY 10020 Mr. R. Sanacore Mr. A. S. Dam American Nuclear Insurers Burns & Roe, Inc.
The Eschange - Suite 245 650 Winters Avenue 270 Farmington Avenue Parmus, NJ 07652 Farmington, CT 06032 Dr. Steve Long, Director Ms. Margaret Reilly Power Plant Siting Program Chief Div. of Reactor Review Department of Natural Resources PA Dept. of Environmental Resources Tawes State Office, Building B-3 Fulton Bank Building 580 Taylor Avenue Harrisburg, PA 17120 Annapolis, MD 21401 J. C. DeVine - TMI Trir. 110 c/o Document Management Branch R. W. Heward - TMI Trir. 180 Washington, D.C. 20555 W. N. Moreau - Met-Ed Reading J. T. Collins - NRC Trir. 1 G. Hovey - TMI - Trir. 105 E. G. Wallace - Parsippany Licensing P. Clark - GPUSC Parsippany W. F. Schmauss - TMI-II GRC Chairman-Parsip.
R. Fenti - QA - TMI Trir. 22 D. H. Reppert - TMI GORB Secretary - Parsip.
J. J. Barton - TMI Trlr. 102 C. E. Hartman - TMI-I PORC Chairman - TMI-I L. W. Harding - TMI Licensing M. A. Shatto - TMI-I PORC Secretary - TMI-I R. M. Klingaman - Met-Ed Reading G. A. Kunder - TMI-I PORC Chairman - Trl. 104 N. Kazanas - Parsippany - QA D. C. Carl - THI-II PORC Secretary - Trl. 104 J. F. Wilson - TMI Trir. 14 B. A. Hockley - Discovery Rooh - Crawford m
J. G. Herbein - TMI Trir. 118 J. Theising - Bechtel, TMI - Admin Bldg B. Dallard - TMI Trir. 16 R. L. Rider - Bechtel - TMI Trir. 173 G. P. Miller - THI-I D. Smith - Reading - Production Supervision R. C. Arnold - TMI Trir. 201 P. S. Walsh - GPU Parsippany D. G. Mitchell - Met-Ed Reading C. A. Negin - TMI - Trlr. 24 S. D. Chaplin - TMI Licensing B. Elam - TMI Tr1r. 104 L. L. Lawyer - TMI Trir. 118 J. Chwastyk - TMI-II Ops.
G. J. Troffer - TMI - Trir. 198 File:
02.0016.0001.0001.02 D
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J. T. Collins TLL 316 The retention of spent resin liners at TMI requires all necessary precautions to be taken to insure the fission products are contained until final disposition.
The Commission's Memorandum and Order dated October 16, 1979, directed Metropolitan Edison to expeditiously solidify EPICOR II wastes. Extensive efforts are in progress to comply with this Order. This letter does not address the status of this solidification effort. Solidification will be the subject of, separate correspondence as the results of conclusive studies and tests are obtained. This letter addresses the liners as they presently exist, in a dewatered state.
Attachment No. 3 provides a tabulated summary of pertinent data for all liners.
Evaluating EPICOR II liners and resins for long term stability was conducted prior to placing the System in service. A more exhausive study is in progress to document the projected longevity of these containers without detrimentally altering the safe containment of fission products. Attachment No. 4 documents the background of this evaluation and provides a detailed discussion of items included. Prelimi-nary analysis indicates, under postulated worst case conditions, the resin and liner package provides safe retention of fission products for several years. A more precise definition of this condition is in progress which includes radio-lytical as well as chemical /metalurgical effects. When available, the details of this evaluation will be made available.
The NRC letter of May 15th requested information relative to the liners and resins in use.
Attachment No. 4 contains much of this information. Attachments 5, 6, and 7 provide drawings of both the 4x4 and 6x6 liners, and the painting specification used on the liner interior. Please note the liners have recently undergone a minor modification to allow installation of an air bubbler for redundant level indication.
The drawings are being updated to include these changes. These will be forwarded as available; however, this alteration has little to no impact on the long term integrity of the liners.
Should additional information not forwarded or highlighted in this letter be required, please contact me or my staff.
Sincerely,
/s/ G. K. Hovey G. K. Hovey Director, TMI-II GKH:RJM: dad Attachments (7) cc:
T. Cintula D. DiIanni B. H. Grier R. W. Reid H. Silver B. J. Snyder V. Stello
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