ML20125A611

Responds to NRC 790531 Ltr Re Violations Noted in IE Insp Repts 50-553/79-05 & 50-554/79-05.Corrective Actions: Concrete Test Sieves Recalibr,Curing Room Temp Corrected & Rebar Repositioned to Provide Circulation

ML20125A611
Person / Time
Site:	Phipps Bend
Issue date:	06/26/1979
From:	Gilleland J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19225C667	List: ML20125A611
References
NUDOCS 7908020075
Download: ML20125A611 (4)

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TENNEOCEE VALLEY AUTHORITY ,

- " CHATT N gg6TNESSEE 37401 500C.Chedd Et' Street Tower II i

{g gtg [ N9 Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303

Dear Mr. O'Reilly:

Enclosed is our response to C. E. Murphy's May 31, 1979, letter, RII:JRH 50-553/79-05 and 50-554/79-05, regarding activities at our Phipps Bend Nuclear Plant which appeared to have been in violation of NRC regulations.

We have reviewed the subject inspection report and find no proprietary information within it. If you have any questions regarding this matter, please get in touch with Tish Jenkins at FTS 854-2014.

Very truly yours,

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/J. E. Gilleland Assistant Manager of Power Enclosure

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7908020075

~i 99, c5 An Equal Opportunity Employer (,v):!(11 AI CON

ENCLOSURE s ,

FINAL RESPONSE TO NRC-0IE LETTER FROM CHARLES E. MURPHY TO H. G. PARRIS DATED MAY 31, 1979 (REFERENCE RII: JRH 50-553/79-05, 50-554/79-05)

This report responds to the following Notice of Violation described in Appendix A of IE Inspection Report RII: JRH 50-553/79-05 and 50-554/79-05.

This is the final ~ report on these infractions.

Noncompliance Item - Infraction - 553-79-05-01 and 554-79-05-01.

A. As required by Criterion V of Appendix B to 10 CFR 50 and as imple-mented by the PSAR Section 17.lA.5, " Activities affecting quality shall be prescribed by documented instructions, procedures, or drawings and shall be accomplished in accordance with these instructions, procedures, or drawings." Procedure SOP QC-18 1- requires that test sieves used in analysis of concrete aggre-gates be calibrated every six months. Procedure C-208 and specificationCFBg00-01requirethatconcretetestcylinders be stored at 73.4 - 3 degrees Fahrenheit and at a minimum relative humidity of 95 percent until the moment of testing.

Contrary to the above, the following examples of failure to follow procedures were identified. Test sieve number 100 identified as CN/SI-19 was not calibrated on the required recalibration date of March 16, 1979, and measurements taken in the curing room between May 8-11, 1979, showed temperature ranges of 69 to 81 degrees and relative humidity ranges of 91 to 96 percent.

This is an infraction for units 1 and 2.

Response

1. Corrective Steps Taken and Results Achieved (a) The number 100 sieve (CN/SI-19) was recalibrated on May 23, 1979, by the Singleton Haterials Laboratory l

j and found to meet tne ASTM Ell-70 specification.

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(b) The control of humidity and temperature in the concrete test cylinder curing room has been corrected to achieve 95 percen$ relative humidity and a constant -temperature of 73.4 -3 Fahrenheit. Immediate action was taken to keep concrete test cylinders wet using water and burlap.

Worn or stopped up fog nozzles were replaced and two new nozzle outlets added. Psychrometer readings were taken and recorded at least every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The heat pump has

. been adjusted to maintain the constant temperature range.

2. Corrective Steps Taken to Avoid Further Noncompliance (a) Four spare number 100 sieves have been ordered. Upon receipt, they will be sent to Singleton Materials Laboratory for calibration. This will enable us to have a calibrated sieve on hand at all times.

(b) Automated equipment has been ordered to monitor and record the temperature and humidity values in the curing room.

3. Date When Full Compliance was Achieved Full compliance was achieved on May 31, 1979.

Noncompliance Item - Infraction - 553-79-05-02 and 554-79-05-02

}' B. As required by Criterion V of Appendix B to 10 CFR 50 and as imple-mented by the PSAR Section 17.lA.5, " Activities affecting quality shall be prescribed by documented instructions, procedures, or drawings and shall be accomplished in accordance with these instruc-tions procedures or drawings." Procedure RISPfl C-301 requires that reinforcing steel be stored off the ground on cribbing to allow air circulation and to avoid trapping water.

Contrary to the above, several bundles of reinforcing steel in the northeast area of the unit 1 powerhouse block were stored on the ground, or on cribbing with ends dragging on or buried in the ,-ound.

This is an infraction for units 1 and 2.

Response

, 1. Corrective Steps Taken and Results Achieved The rebar found in noncompliance was moved and set on cribbing in areas free of traffic and arranged to provide proper air circulation and drainage.

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2. Corrective Steps Taken to Avoid Further Noacompliance f

x. The importance of storing rebar in accordance with RIS&PM C-301 was. reiterated to the responsible craft. The QC inspectors were informed of the noncompliance and instructed to watch more closely for rebar storage deficiencies.

3. Date When Full Compliance was Achieved Full compliance was achieved on May 11, 1979.

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