ML17174A234
| ML17174A234 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion  |
| Issue date: | 12/03/1979 |
| From: | Peoples D COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0578, RTR-NUREG-578 NUDOCS 7912120425 | |
| Download: ML17174A234 (2) | |
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""*~ e Commo-lh Edison One First National Plaza, Chicago, Illinois Address Reply to: Post Office Box 767 Chicago, Illinois 60690 December 3, 1979 Dr. Harold R. Uenton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory tommission W as h i n gt on,. DC 2 0 5 5 5
Subject:
Dresden Station Units 1, 2 and 3 Quad-Cities Station Units 1 and 2 Zion Station Units 1 and 2 Commitments to Meet Near-Term Requirements of the Lessons Learned Task Force
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NRC Docket Nos. 50-10/237 /246'; 50-254/265, and 50-295/304 References (1):
H. R. Denton letter to all operating plants dated October 30, 1979.
(2):
C. Reed letter to D. G. Eisenhut dated October 18, 1979~
(3):
D. G. Eisenhut letter to all operating plants dated September 13, 1979.
( 4) : c. Reed letter to H. R. Denton dated
- November 21, 1979.
( 5) :. C. Reed letter to H. R. Denton. dated November 30,. 1979.
Dear Dr. *Denton:
A November 29, 1979, phone conversation with members.
of.your staff indicated the need for additional clarification of our response to your October 30, 1979, letter.
- The enclosed supplementary response should be incor-.
porated into our October 18, 1979, letter on Lessons Learned commitments.
One (1) signed original and seventy-nine (79) copies are provided.fbr your use.
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1/1 Very truly yours,
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D. L. Peoples Director of Nuclear APD:
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. ENCLOSURE
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Systems Integrity fDr High Radioactivity A ~ummary description of our leakage reduction program and the systems covered by the program will be provided by January 1, 1980.
2.1.8.a Im~r_oved Post-A_cc_i_de11t. _S_ampJ i ng C_apab1 l i ty The capability to perform analyses of dissolved gases (H2 and 02) and pH in liquids and containm~nt hydrogen will
- .be added to the sampling system.
The sampling system modifications and the remote analyses will be operational
. January 1, 1981, contingent upon equipment availability, delivery and installation time.
2.1.8.b Increased Range of Radiation Monitors As an 1nter1m procedure to obtain operational information, a real time monitoring system will be developed.
The system will consist of portable high range survey instru-ments for esti~ating noble gas releases based on a pre-determined method of converting measured dose rate (mR/hr) into concentration {uCi/cc).
This real time interim monitoring system will be.operational January 1, 1980, provided no additional equipment is required.
Any additional equipment will be obtained as soon as possible.
This interim procedure will replace the previously proposed interim procedure based on collecting and analyzing grab samples.
2.LB.c In Plant Iodihe Instrumentation Under Accident Conditions In order to obtain real time information on the amount of-airborne. iodine present at various locations in the plant during accident conditions, a portable iodine sampler, detector and associated electronic analysis equipment (i.e., single
- channel analyzer) will be purchased as soon as possible.
All of this equipment will be portable and will be used to.give an initial conservative estimate of the amount of airbo~ne iodine.
This equipment and associated procedures will be operational January 1, 1980, contingent upon equipment avail-ability and delivery time *. The previously proposed procedure changes *to sample and analyze.hi9hly radioactive iodine samples (analyzed by Ge(Li) spectrometer) will be deferred until January 1, 1981.
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