ML20023C623

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Second Set of Interrogatories.Related Correspondence
ML20023C623
Person / Time
Site: Harris  
Issue date: 05/13/1983
From: Wilson R
WILSON, R.
To:
CAROLINA POWER & LIGHT CO.
References
ISSUANCES-OL, NUDOCS 8305170491
Download: ML20023C623 (2)


Text

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the matter of CAROLINA POWER & LIGHT CO. Et al.

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Dockets 50-400 Shearon Harris Nuclear Power Plant, Units 1 and 2

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and 50-401 0.L, L-RICHARD WILSON INTEROGATORIES TO APPLICANT (SECOND SET) 13, May 1983 For each of the answers you provide to the following interogatories please give in footnote form each document (including all relevant page citations) you used in formulating the answers and you would use in refuting the contention during this proceeding.

Please use the definition of document which you offered on page 3 of your January 31 interogatories to me.

Please produce all documents mentioned and permit copying and inspection by me or my agent.

Please state the name, title, and employer of each person who contributes to the answers.

Please identify explicitly any models or assumptions used in your answers.

Please include all calculations in thei r enti rety.

Please footnote every fact in every answer.

CONTENTION IVC-1 With respect to the L.L.D. equation given in table 4.12-1 of NUREG-0472 please answer the following questions.

1.

Why are 95% and 5% selected as the error, levels?

2.

This form of the equation suggests that CT sample = CT b l an k = d'.

Is this reasonable to assume at this preliminary stage?

3 Since the L.L.D.

is an a priori limit, how are observed concentrations estimated, i.e. by confidence intervals or determination limits?

om OOQ in h CONTENTION IVC-2

~

oo no LW With respect to the S

" 9' b

NUREG-0472 please answer the following questions.

00 NA l.

Since S is an estimated quantity, what are the details of estimation procedure?

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b Om

[@o 2.

Is the theoretical variance that you refer to usually of smaller or larger Dsog

- page 2 -

magnitude than the estimated S erms?

b

3. Is there any documentation describing how the mean and variance of Sb vary with weather, season, or time of day?
4. Please illustrate a particular sampling pathway in detail, examining the precise method of control measurement, the systematic nature of sampling times, and the effects of inclement weather, etc. on the collection process.

CONTENTION IVC-3 With respect to the cross-check validation analysis of 6.1.5 5 of the Environmental Report please answer the following questions.

1.

Select a particular example and describe the cross-check process in enough detail to identify how the "mean result of a cross-check analysis" is calcu-lated.

2.

What is the expected delay between error discovery and corrective action?

3 Does this expected delay depend upon the size and type of error?

If so, how?

&llV Richard Wilson W