ML20207P533

Proposed Tech Spec 3.12.1(2)d Re Surveillance Requirements for Radiological Waste Sampling of Liquid & Gaseous Effluents

ML20207P533
Person / Time
Site:	Fort Calhoun
Issue date:	01/07/1987
From:	OMAHA PUBLIC POWER DISTRICT
To:
Shared Package
ML20207P521	List: ML20207P520 ML20207P525 ML20207P533
References
TAC-64445, NUDOCS 8701160223
Download: ML20207P533 (3)

Text

c ATTACHMENT A 3 ..-l 3.0 ' SURVEILLANCE REOUIREMENTS 3.12 Radiological Waste Sampling and Monitoring (Continued) 3.12.1 Liquid and Gaseous Effluents (Continued)

(iii); Quarterly channel functional test.

Channel calibration at "R" frequency (every 18 months ).

(iv).  ;-

d. The hydrogen and oxygen monitoring system for the~ gas decay tanks shall have a:

(1) Daily channel checkla w id W Ic d

~

i (ii) Monthly cross comparison with a grab sample.

(iii) Quarterly channel calibration using gas mixtures with concentrations in the range of interest.

-e. Records shall be maintained and reports of the sampling and results of analyses shall be submitted to the Commission in accordance with Section 5.9.h.a of these specifications. .

I Bas is The surveillance requirements given under Specification 3.12.1(2) provide i 2

assurance that radioactive gaseous effluents - from the station are properly I.

controlled and ronitored over the life of the station in conformance with the requirements of General Design Criteria 60 and 6h of 10 CFR Part 50,  !

Appendix A. These surveillance requirements provide the data for the licensee and the Commission to evaluate the performance of the station relative to radioactive gaseous vastes released to the environment. The existing minimum sensitivity of airborne effluent monitor RM-062 is SE-06 mci /cc/100 cpm and this minimum sensitivity shall be maintained if the

=onitor is replaced. Reports on the quantities of~the radioactive

• materials released in. gaseous effluents shall be furnished to the Commis-sien on the basis of Section 5.9.h.a of these Technical Specifications. ,

On the basis of such reports and any additional information the Commission I

=ay obtain from the licensee or others , the Ccemission may frem time to time require the licensee to take such action as the Commission deems appropriate. j

r. .

i The surveillance requirements given under Specification 3.12.1(1) provide l assurance that liquid.vastes are properly controlled and monitored in -

conformance with the requirements of General Design Criteria 60 and 6k of l j

- 10 CFR Part 50, Appendix A, during any planned release of radioactive l

materials in liquid effluents. These surveillance requirements provide i I

the data for the licensee and the- Commission to evaluate the station's l performance relative to radioactive liquid vastes released to the environ-ment. Reports on the quantities of radioactive materials released in liquid effluents shall be furnished to the Commission on the basis of

(\_ Section 5.9.k.c of these Technical Specifications. Cn the basis of such reports and any additional information the Commission may obtain from the licensee or others , the Commission may from time to time require the licensee to take such action as the Commission deems appropriato.

8701160223 870107 "

e PDR ADOCK 05000285 3-71 Amendment No. c6 p- PDR .

. ATTACHMENT B Justification, Discussion No Significant Hazards Considerations Technical Specification 3.12.1(2)d states:

"The hydrogen and oxygen monitoring system for the gas decay tanks shall' a:..... (i) Daily Channel Check". According to the daily test conducted on the waste gas decay tanks, ST-WG-2, F.1, hydrogen and oxygen monitor indications need only to be recorded 'if waste gas transfers were made-during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />'."

The Fort Calhoun Station Technical Specifications define a channel check as:

"A qualitative determination of acceptable operability by observation of channel behavior during normal plant operation. This determination shall, where feasible, include comparison of the channel with other independent- l channels measuring the same variable."

'During normal operation as outlined in the above definition, the waste gas analyzer panel is in " stand-by mode" per 0I-WDG-3. Therefore, Fort Calhoun Station personnel note such on FC-71, the weekly Operations Surveillance Log.

A procedure change has been initiated to clarify ST-WG-2, F.1.b(1). The change will read:

" Record hydrogen and oxygen monitor meter indications, sample flow rates and sample point pressure and in-service waste gas-decay tank if waste gas transfers were made during the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. This information can be obtained from the Auxiliary Building Log (FC-143) and should be noted on the weekly Operations Surveillance Log (FC-71). Should AI-110 be in the

' stand-by mode' per OI-WDG-3, note as such on FC-71."

This-procedure change will clarify the data to be recorded where and when, and will modify 01-WDG-3. The following has been added at IV.B.10;

"If transferring waste gas from the vent header to a waste gas decay tank,

record the concentration of hydrogen and oxygen for the appropriate in-service decay tank on FC-143 and FC-71."

The proposed amendment to the Technical Specifications, Section 3.12.1(2)d will clarify that the hydrogen and oxygen monitors on the waste gas decay system shall have a daily channel check when in service. This change will agree with

! the requirements of Technical Specification 2.9.1(2)d.

i No Sianificant Hazards Considerations OPPD has evaluated the proposed change to determine if significant hazards considerations exist. As such, the following is presented; l

l l

w

, Attachment B (Continued) l

1. Will the change involve a significant increase in the possibility or consequences of an accident previously evaluated?

No. This change simply clarifies the testing requirements for hydrogen and oxygen concentrations on the waste gas decay tanks. This change does not l alter equipment or valve settings and therefore will not increase the probability or consequences of an accident previously evaluated.

2. Will the change create the possibility of a new or different type of accident from any previously evaluated?

No. This change simply clarifies the testing requirements for hydrogen and oxygen concentrations on the waste gas decay tanks. This change does not alter equipment or valve settings and therefore will not create the possibility of a new or different kind of accident from any accident previously evaluated.

3. Will the change involve a significant reduction in a margin of safety?

No. Clarifying the surveillance requirements will not reduce the margin of safety.

. . , , . - . . . - , . , . _ - ~ _ _ _ . - . _ . _ . ,m ._-,, - ,_- .,