ML19337A830
| ML19337A830 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/19/1980 |
| From: | Porter S PORTER CONSULTANTS, INC. |
| To: | Arnold R, Jay Collins, Herbein J METROPOLITAN EDISON CO., Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19337A831 | List: |
| References | |
| TMI-II-R-15025, NUDOCS 8009300399 | |
| Download: ML19337A830 (2) | |
Text
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Pcrtcr Consultants. Inc.
- 73 MITTENMouSE Pt, ACE Anowo n E, cA. isoos IMI-II-R-15025 zis ses sasa RC6.1 Ssptember 19, 1980 TO:
R. Arnold G. Miller J. Herbein J. Barton R. Wilson P. Ruhter C. Hovey D. Dubiel J. Brasher W. Potts R. Heward M. Ross J. Thorpe M. Kephart W. Rieth3e Data Management L. Harding PCI/Ardmore Office J. Collins, NRR/NRC K. Woodard, Pickard, Lowe & Garrick FROM:
Sydney W. Porter, Jr.
SUBJECT:
Effluent Releases from TMI Units I and II for the First and Second Quarters, 1980 and the Month of July, 1980 1)
Enclosed is an Executive Sunnrary of TMI Units I and II Liquid and Gaseous Releases for July, 1980.
The January to March,1980 and April to June, 1980 i
Sununary Release data is included for comparison purposes.
2)
Tables 1-5 provide additional data for liquid discharges to the Susquehanna River for 1980.
3)
Also included in this report is an Explanation of the TMI Effluent and Dose Assessment Group Monthly Summary.
This explanation of the report will be included each month.
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n Sydney W. Porter, Jr., C.H.P.
SWP/sa Head, Effluent and Dose Assessment Section Ys \\
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Pcrtcr Gert2 Consultants, Inc.
76 RITTENHouSE PLACE A R oMo R E. P A.19003 215 496 53s3 FROM:
Sydney W. Porter, Jr., C.H.P.
SUBJECT:
Explanation of the TMI Effluent Assessment Group Monthly Summary a)
General Reference is made to the Executive Summary entitled "TMI Units I and II Liquid and Caseous Releases".
For purposes of comparison, all previous 1980 releases are included in this report. All data is given in monthly increments with quarterly averages or totals as applicable.
1)
Liquid Releases Line (a) gives all liquid releases except Tritium.
Since Tritium cannot be effectively removed from liquids, it needs to be separated out so that is can be carefully watched. Tritium may very well be the critical radionuclide for liquid releases during the entire recovery process as well as during normal plant operations. Present Tech Specs for discharge of liquids, excluding Tritium and Noble Gases, is 10 Ci per reactor in any quarter year.
Line (b) separated the Iodine-131 released since it was the major radionuclide released during the early days of the accident and it will be found periodically in downstream drinking water supplies because of the periodic discharge from hospitals using Iodine-131.
The 10CFR20 allowable Iodine-131 release rate is 3x10-7pCi/cc and the EPA drinking water standard is 3x10-'uci/cc (as averaged over one year).
Line (c) utilizes units of UCi/cc for Tritium so that the release concentrations can be compared to the 10CFR20 limits of 3x10-spCi/cc.
Note that the EPA drinking watei; standard is 2x10-5pci/cc (as averaged over one year).
2)
Airborne Iodine releases are separated out because of the fact that radioiodines are potentially the largest hazard from a serious reactor accident.
The units pCi/sec. are used so that the radioiodine releases can be compared to the Tech Spec quarterly release limits of 0.024 pCi/sec.
3)
Noble Gas releases are listed in C1/sec. averaged over the quarter so that they can be compared to 0.0072 Ci/sec. Tech Spec limits.
4 The tables appended to the Executive Summary give all the specific technical data which is summarized in the Executive Summary.
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SWP/sa Sydney W. Porter, Jr., C.H.P.
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Head, Effluent and Dose Assessment Group
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