ML20040B899
| ML20040B899 | |
| Person / Time | |
|---|---|
| Issue date: | 12/18/1980 |
| From: | Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Engelken R, Grier B, James Keppler, James O'Reilly, Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| Shared Package | |
| ML19297C884 | List: |
| References | |
| FOIA-81-326, REF-SSINS-6820 NUDOCS 8201260547 | |
| Download: ML20040B899 (1) | |
Text
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SSINS No.:
6820 DEC 13 '960 MEMORANDUM FOR: B. H. Grier, Director, Region I J. P. O'Reilly, Director, Region II J.G. Keppler, Director, Region III K. V. Seyfrit, Director, Region IV R. H. Engelken, Director, Region V FROM:
J. H. Sniezek, Director, Division of Resident and Regional Reactor Inspection, IE
SUBJECT:
LEAKAGE INSIDE CONTAINMENTTI FOR IE BULLET The enclosed draft TI is in the process of being issued in final copy within a week or two.
and should be to you Due to the tight schedule and the possible impact on y we forward this copy to you now for advanced implementatioour inspec n.
James H. Sniezek, Director Division of Resident and Regional Reactor Inspection, IE Enclosure': TI 2515 i
CONTACT:
Roy Woods 49-28180 cc:
S. E. Bryan, IE t
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TI 2515/
Issue Date:
INSPECTION REQUIREMENTS TO REVIEW LICENSEE ACTIONS IN RESPONSE TO IE BULLETIN NO. 80-24 I.
Objective The objective of this inspection is to verify that the actions required by IE Bulletin 80-24 have been satisfactorily completed, that suitably detailed descriptions of open cooling systems Within containment are provided as required, and that acceptable documentation is provided by the licensee.
Additionally, since the Commissioners have requested a summary briefing "within three or four days" of receipt of the licensee's submittals, the Inspector is requested to compile and submit the information described in Section IV below.
This TI is provided to supplement IE Procedure 927038, whose general guidance should be followed during this inspection.
e II.
Backarcund Information IE Bulletin 80-24 was issued November 21, 1980, to operating reactors.
The basis of the bulletin is undetected accumulation of a significant amount of water in the Indian Point Unit 2 containment that was discovered October 17, 1980.
III. Description of NRC Inspection to Determine Acceptability of Licensee's Plant Equipment and Licensee's Response to Bulletin 80-24 The following describes acceptable licensee responses to Bulletin 80-24 4
in terms of both the written response to be submitted by the licensee and in terms of acceptable equipment required at the plant.
Plant specific unique situations should be considered and accounted for as appropriate.
The NRC inspection should verify that the plant equipment and the licensee's written Bulletin response is acceptably similar to that discussed below.
NOTE: The numbered items below correspond to numbered " Actions to be
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Taken by Licensees" in IE Bulletin 80-24:
(a) Flow paths and equipment used (pumps, piping, valves, sumps) should be described.
Separate descriptions for normal and post-LOCA operations should be included.
P & ID's with the flow paths marked are desirable for a thorough but concise response.
(b) Self-explanatory (c) Ser*Vice water system materials in contact with the water should be listed; other materials'need not be listed.
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(d)
Leakage history descriptions should include a table (or equivalent summary presentation) showing all leakage locations for which leakage repair orders have been issued over the plant history (pump seals, pump casings, valve packing, valve bodies, flanges, welded joints, brazed joints, tubing, supply / return pipes, soidered joints, etc.) and giving the approximate number of leaks for each calendar year from each such location, broken down into several
" leak size" categories (quantified if possible and/or characterized as " wet area", " drip", " steady small stream," " steady large stream,"
" deluge," etc.).
(e) Repair methods should be specified for each leak location listed in 1.(d).
(f)(i)
Isolation valve. locations and radiation monitor locations should be described, for example by marking on a P&ID, so that it is clear how precisely a leak location can be pinpointed and then isolated.
(g)(h)
Self explanatory.
Narrative descriptions should provide adequate detail.
2.(a)(b) The mechanical and electrical equipment necessary to satisy these requirements should be physically inspected in situ.
Test and/or calibration results should by physically inspected to verify operability of the equipment.
The licensee's description of the
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equipment in his written response should accurately characterize the inspected equipment.
(c) The inspector should verify existence of the required surveillance procedures described in the licensee's response and ascertain acceptability of the licensee's administrative controls to insure the procedures are carried out at the required times.
The inspector should also verify existence and enforceability of requirements for plant shutdown if operability of required equipment cannot be demonstrated.
(d)
Inspection should be conducted as necessary to determine whether or not the licensee can promptly detect and isolate water leakage in containment.
'(e) The inspector cnould verify that the interim surveillance measures are in place.
(f) The inspector should verify that a report is required to be submitted by the licensee's procedures whenever service water system leaks occui'. within containment during operating modes when containment integrity is required.
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Issue Date:
3.
The licensee's responses should characterize the frequency and magnitude of leaks from closed systems in containment.
Magnitude should include flow rate and/or a characterization of the. leak as a " wet spot," "drippir.g", "small" or "large stream," " deluge,"
etc.
Responses should also describe how the leak was detected (from inventory decrease, makeup flow to system, sump level increase, etc.).
Any damage caused by the leak to the closed system or to equipment in the vicinity of the leak should be described.
IV.
Reporting Requirements The Commissioners have requested that they be briefed regarding results of this Bulletin "within three or four days" of the licensee submittals.
Accordingly, it is requested that the Inspector compile the information described below and submit it by January 9,1981 (licensee responses are due January 5, 1981) following as closely as possible the outline below.
The intent of the requested report is to provide a concise summary of the' most important portions of the licensee's submittal in a format that will ena'le quick preparation of one summary covering all plants.
It is realized o
that in all cases the exact format will not be completely appropriate.
However, please stay as close to the format as possible to maintain the usefulness of the report in quickly preparing the required material for the Commissioners.
NOTE: the numbered items below correspond to the numbered " Actions to be Taken by Licensees" in IE bulletin 80-14.
1.(a-f)
Provide a Table listing Open Systems in Containment with the following information: (NOTE: Information shown in Table in ( ) is for example only)
LEAKAGE HISTORY, AVERAGE LEAKS /YR OPEN N
S LEAK WET REPAIR SYSTEM P
F LOCATION SPOTS DRIPS STREAMS DELUGES METHOD (Service (N,P)
(S)
(Supply (10)
(5)
- (1)
(0.1)
(1,2)
Water)
Hdr)
(Motor (20)
(10)
(2)
(0)
(3)
Cooler)
(System Y) e N = Normally used (i.e., in service during normal plant operations)
P = Post-LOCA (i.e., used only during accident conditions)
S = System uses salt or brackish water F = System uses fresh water
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Issue Date:
(1 = Epi seal epoxy repair)
(2 = " Adams" clamps)
(3 = 90/5/5 solder) 2.(a)(b) Provide a Table with the following faformation: (Note: information shown in ( ) is sample)
LOCATION OF MEANS OF INDICATION, I, TYPE OF FLOW MEAS.
POTENTIAL WATER DETECTING OR ALARM, A, FLOW MEAS.
READOUT IN ACCUMULATION WATER IN CONTROL RM INST.
(float switch)
(I, A)
(Totalifer in (Yes)
(ultrasonic (A)
Sump Disch.
det.)
Line)
(location X) 2.(c) In one or two brief sentences, summarize areas where the inspection determined that surveillance procedures are not acceptable.
2.(d) Also briefly, summarize areas where the inspection determined that the leak detection systems and/or procedures and/or the isolation systems are not acceptable.
Conclude with the statement " Periodic Containment Entry proposed (x) times per month terminating (date or termination criteria)."
3.
P'rovide a Table with the following information:
CLOSED AVERAGE LEAKS / YEAR SYSTEM WET SPOTS DRIPS STREAMS DELUGES METHOD (System Y)
(3)
(2)
(0)
-(0)
(Inventory Decrease)
(Observation in containment)
(Water indicated in sump)
(System Z)
O t
a
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i V.
For record purposes, this TI should remain in effect until December 31, 1981.
VI.
Headcuarters Contact i
H.
Woods (492-8180)
VII. Module Tracking System Input (766 Data)
For module tracking input, record the actual irispection effort against Module No..
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