ML20128L820

Forwards Draft SER Re Emergency Response Capability Conformance W/Reg Guide 1.97,Rev 2,replacing 841115 Interim Ser.Util Justification for Lack of Environ Qualification for Neutron Flux Instruments Unacceptable

ML20128L820
Person / Time
Site:	Comanche Peak
Issue date:	07/01/1985
From:	Noonan V Office of Nuclear Reactor Regulation
To:	Spence M TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
Shared Package
ML20127D449	List: ML20127D443 ML20128L820 ML20128L879
References
RTR-REGGD-01.097, RTR-REGGD-1.097 NUDOCS 8507110468
Download: ML20128L820 (4)

Text

.

• ~

[ b UNITED STATES

.y',f A f *^n* NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555

'N

• JUL 01 1985 Docket Nos.: 50-445 and 50-446 Mr. M. D. Spence President Texas Utilities Generating Company 400 N. 01ive St., L. B. 81 Dallas, Texas 75201

Subject:

Safety Evaluation Report Concerning Comanche Peak Steam Electric Station Emergency Response Capability Conformance with Regulatory Guide 1.97, Revision 2

References:

(1) NRC letter (Youngblood to Spence) dated November 15, 1984 (2) TUGC0 letter TXX-4382 (Beck to Youngblood) dated January 28, 1985 Reference (1) provided an interim evaluation by the NRC staff on the compliance of the Comanche Peak Steam Electric Station (CPSES) design with the guidance -

provided in Regulatory Guide 1.97, Revision 2. Reference (2) provided addi-tional information in response to the exceptions from the guidance of Regulatory Guide 1.97, Revision 2 identified in the conclusions of the interim evaluation.

The enclosed draft safety evaluation with its attachment supersedes the interim evaluation and addresses the additional information provided in Reference 2.

The draft safety evaluation finds the instrumentation provided either conforms to, or is justified in deviating from, the guidance of Regulatory Guide 1.97 for each post-accident monitoring variable except for neutron flux. For this variable, TUGC0 has not identified the appropriate environmental qualification.

10 CFR 50.49 requires that all Regulatory Guide 1.97, Category 1 and 2 instruments located in a harsh environment be included in the environmental qualification program unless adequate justification is provided. The justification provided supporting the lack of environmental qualification for the neutron flux instru-mentation stated that the same information can be obtained by monitoring the reactor coolant system (RCS) hot leg and cold leg water temperatures, and as

. r._.

8507110468 850701 PDR me F

ADOCK 05000445 PDR

Mr. M. D. Spence JUL 011385 backup, the control rod position and RCS soluble boron concentration. The staff has reviewed this justification and finds it is not acceptable. The alternate instrumentation cited does not provide the necessary information required for post-accident monitoring in accordance with Regulatory Guide 1.97. Category 1 neutron flux instrumentation must be provided prior to fuel loading.

Please advise Mr. S. B. Burwell, of my staff, when we may expect to receive your response to this issue. If there are any questions, Mr. Burwell will schedule conference calls with the staff.

Sincerely, MGIRAL SIGNED By:

Vincent S. Noonan, Director for Comanche Peak Project Division of Licensing

Enclosure:

As stated cc: See next page

~

plSTRIBUTIliN N

}%WWGYUK LPDR NSIC PRC System S8urwell 0 ELD ACRS (16)

MRushbrook LB#1 R/F l VNoonan R/F l BGrimes CTrammell i EJordan A

! JPartlow f RHouston l FRosa JJoyce TDunning LB#1:DL SBurwell:kab LB#1:DL BJYoun ki :DL h mmell CP:TR1 Vfponan L

06/28/85 06/9.%gblood

/85 06/p/85 V l /85 l

l L

~i JUL 0 J 1995 Mr. M. D. Spence Comanche Peak Steam Electric Station Texas Utilities Generating Company Units 1 and 2 cc:

Nicholas S. Reynolds, Esq. Resident Inspector / Comanche Peak Bishop, Liberman, Cook, Nuclear Power Station Purcell & Reynolds c/o U.S. Nuclear Regulatory Commission 1200 Seventeenth Street, NW P. O. Box 38 Washington, D.C. 20036 Glen Rose, Texas 76043 Robert A. Wooldridge, Esq. Regional Administrator, Region IV Worsham, Forsythe, Sampels & U.S. Nuclear Regulatory Commission Wooldridge 611 Ryan Plaza Drive, Suite 1000 2001 Bryan Tower, Suite 2500 Arlington, Texas 76011 Dallas, Texas 75201 Larry A. Sinkin 3022 Porter Street, NW #304 Washington, D.C. 20008 Mr. Robert E. Ballard, Jr. W. G. Counsil Director of Projects Executive Vice President Gibbs and Hill, Inc. Texas Utilities Generating Company 11 Pen Plaza . Skyway Tower New York, New York 10001 400 North Olive Street, LB#81 Dallas, Texas 75201 Mr. A. T. Parker Ms. Billie Pirner Garde Westinghouse Electric Corporation Citizens Clinic Director P. O. Box 355 Government Accountability Project Pittsburgh, Pennsylvania 15230 1901 Que Street, NW Washington, D.C. 20009 .

Renea Hicks, Esq.

Assistant Attorney General David R. Pigott, Esq.

Environmental Protection Division Orrick, Herrington & Sutcliffe P. O. Box 12548, Capitol Station 600 Montgomery Street Austin, Texas 78711 San Francisco, California 94111 Mrs. Juanita Ellis, President Anthony Z. Roisman, Esq.

Citizens Association for Sound Energy Trial Lawyers for Public Justice 1426 South Polk 2000 P. Street, NW Dallas, Texas 75224 Suite 611 Washington, D.C. 20036 Ms. Nancy H. Williams CYGNA 101 California Street San Francisco, California 94111 m e gge e

JUL 011985 Texas Utilities Electric Company Comanche Peak Electric Station Units 1 and 2 cc:

Resident Inspector - Comanche Peak c/o U.S. Nuclear Regulatory Commission P. O. Box 1029 Granbury, Texas 76048 Mr. John W. Beck Manager - Licensing Texas Utilities Electric Company Skyway Tower 400 N. Olive Street, LB#81 Dallas, Texas 75201 Mr. Jack Redding Licensing Texas Utilities Generating Company 4901 Fairmont Avenue Bethesda, Maryland 20814 William A. Burchette, Esq.

Heron, Burchette, Ruckert & Rothwell Suite 700 1025 Thomas Jefferson Street, NW Washington, D.C. 20007 Mr. James McGaughy Southern Engineering Company of Georgia 1800 Peachtree, Street, NW Atlanta, Georgia 30367-8301 .

-e &# ay, a