ML17266A247

Responds to NRC 800623 Ltr Re Violations Noted in IE Insp Rept 50-389/80-08.Corrective Actions:Cement to Sand Ratio Clarified & Instructions Were Provided for Placing sand-cement Fill

ML17266A247
Person / Time
Site:	Saint Lucie
Issue date:	07/24/1980
From:	UHRIG R E FLORIDA POWER & LIGHT CO.
To:	OREILLY J P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17208A918	List: IR 05000389/1980008 ML17266A247 ML17266A248
References
L-80-235, NUDOCS 8008220111
Download: ML17266A247 (3)

See also: IR 05000389/1980008

Text

P.o.BOX 529100MIAMI, FL 33152"O JgL 3F FLORIDA POWER&LIGHT COMPANY July 24, 1980 L-80-235 Mr.James P.O'Reilly, Director, Region II Office of Inspection

and Enforcement

U.S.Nuclear Regulatory

Commission

101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Dear Mr.O'Reilly: Re: RII:JH St.Lucie-Unit

2 Docket No.50-389 80-08 Florida Power 8 Light Company has reviewed the subject Inspection

Report and our response is attached.There is no proprietary

information

contained in the report.Very truly yours, Robert E.Uhrig Vice President Advanced Systems 8 Technology

REU/JRP/ah

Attachment

cc: Harold F.Reis, Esquire PEOPLE...SERVING PEOPLE

RI I: JRH 50-389/80-08

Infraction:

Sand-Cement

Fill-Procedure Inadequate

As required by Criterion V of Appendix B to 10 CFR 50, and as implemented

by Florida Power 8 Light Company PSAR Section 17.1A.5,"Activities

affecting quality shall be prescribed

by documented

instructions, procedures

or drawings....and

shall be accomplished

in accordance

with these instructions, procedui es, or drawings." Paragraph TgR 5.1 of the Topical guality Assurance Report states,"Activities

affecting quality of nuclear safety related structures

systems and components

shall be prescribed

by documented

instructions, procedures

or drawings of a type appropriate

to the circumstances

and shall be accomplished

in accordance

with these instructions, procedures

or drawings.These documents shall include appropriate

quantitative

criteria such as dimensions, tolerances

and operating limits and qualitative

criteria such as comparative

work-manship samples to assure that the quality assurance activity has been satisfactorily

accomplished.

Contrary to the above, sand-cement

fill activities

in the diesel generating

building are not being controlled

adequately

in that procedure drawings and instructions

are not clear as to whether the stated 1 to 20 ratio of cement to sand is by volume or weight, water and compactions

requirements

are not specific, amounts of ingredients

in the mix are not documented, and test data verifying design requirements

are being met are not available.

~Res onse: Florida Power a Light Company has evaluated the finding and submits the following response.During this inspection

DCN 513.822 was issued to clarify the ratio of cement to sand and to provide instructions

for placing the sand-cement

fill.In addition, Construction

guality Control sampled a mix with the same mix properties

used at the Diesel Generator Building.Five 6 inch diameter by 12 inch high cylinder specimens were prepared.The mix was 20: 1 by volume.Each specimen was prepared by filling the cylinder mold in six inch lifts, sprinkling

the surface lightly with water and tamping to approximate

the compacting

efforts applied in the field.The first sample specimen was tested at seven days and reached 1110 psi.The twenty-eight

day strength cylinders averaged 1310 psi.Al']corrective

actions for this infraction

are considered

complete.