ML19322B768

Responds to NRC Re Violations Noted in IE Insp Repts 50-269/76-05,50-270/76-05 & 50-287/76-05 Supplementing Util 760408 Response Re IE Insp Repts 50-269/76-02 & 50-270/76-02 & 50-287/76-02.No Proprietary Info

ML19322B768
Person / Time
Site:	Oconee
Issue date:	07/09/1976
From:	Parker W DUKE POWER CO.
To:	Mose Ey N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19322B762	List: IR 05000269/1976002 ML19322B768 ML19322B774 ML19322B784 ML19322B789 ML19322B793 ML19322B802
References
NUDOCS 7912050763
Download: ML19322B768 (5)

Text

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Dunn Poweit COMPANY POWER UUtGINO 422 Socin Cnuncis Srneer. GrunwrTE. N. C. 2na.sa i

w t L LI A M O. PAR E E R, J R.

Trtgewomc; Asta 704 v cr Passioggt 373-4083 Sf Caen PeC0wCT'04 July 9, 1976 Mr. Norman C. Moseley, Director U. S. Nuclear Regulatory Commission Suite 818 230 Peachtree Street, Northwest Atlanta, Georgia 30303 Re:

IE:II:TNE 50-269, -270, -287/76-5

Dear Mr. Moseley:

i With regard to your letter dated June 18, 1976, Duke Power Company does not consider information contained in OIE Inspection Report 50-269, -270, -287/76-5 to be proprietary.

Please find attached our response to items identified in Section VIII of the inspection report. This response is also provided to supplement our April 8, 1976 response to IE Inspection Report 50-269, -270, -287/

76-2.

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Ver truly yours, 0

/

w 3

William O. Parker, J.

MST:vr Attachment g

753 7912050

i RESPONSE TO OIE INSPECTION REPORT 50-269, -270, -287/76-5 1.

Item Unresolved Item 50-269/73-12/1, Calibration of Effluent Monitors

RESPONSE

Oconee Nuclear Station Directive 3.8.6, " Radiation Monitor Responsibilities,"

has been written and approved to designate specific responsibilities to groups for the calibration, correlation, use, repair, decontamination and adjustment of setpoints on the station radiation monitors.

The requirement has been included to periodically empirically correlate all radiation monitors.

This correlation will take the form of a comparison between the respective radiation monitor reading and a laboratory analysis in the case of process monitors or a manually-taken reading in the case of area monitors.

The results of these correlations will be evaluated and dis-crepancies resolved.

Procedures detailing the methods necessary to implement the above require-ment will be completed by August 10, 1976.

The first correlation of the monitors should be completed by August 30, 1976.

2.

Item Unresolved Item 50-269, -270, -287/76-2/1, Process and Effluent Monitor Calibrations and Functional Checks

RESPONSE

An additional function of the Oconee Nuclear Station Directive 3.8.6, described in Item 1, was the assignment of responsibility for the establishment of setpoints for each radiation monitor.

This responsi-bility also includes a statement of the basis for the establishment of each setpoint so that the meaning and significance of an alarm received on a monitor is available in written form to the operators.

The station directive also requires the periodic review of each setpoint to determine that the basis of the setpoint is still applicable.

The procedure for establishing the setpoints and the basis of each setpoint should be completed by August 10, 1976.

The procedure for periodic review of the setpoints and the basis of the setpoints should.be completed by August 30, 1976.

The problems associated with the liquid waste monitor are being addressed by a task group formed within the Company, including the services of a vendor consultant.

Three solutions are currently being pursued.

First, a continuation of the effort to fully decontaminate the installed monitor is being made.

Included in this effort is the decontamination of piping adjacent to the monitor which, it has been determined, is contributing significantly to the contamination (background) problem.

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i l' Secondly, a revised monitor arrangement is being fabricated and it is planned that the monitor will be empirically correlated after installation.

i This monitor, if successful, should be much easier to decontaminate after contamination builds to an unacceptable level.

(Routine flushing of the monitor in the existing arrangement with service wates was begun in early June, 1976 and has resulted in slower contamination buildup.)

i The third alternative being pursued is the purchase of a partial flow monitor which is more sensitive and more easily decontaminated than the presently installed monitor.

However, at this time the availability of such a monitor has not been assured.

It is considered that one or more of these alternatives should offer an 1

acceptable solution to the contamination problem.

Until such a solution l

is found, a meaningful correlation of the monitor cannot be made and a setpoint satisfying the requirements of Technical Specifications cannot i

be determined. A timetable for complete resolution of these problems will be provided by August 10, 1976.

J 3.

Item Response to Infraction I.3, IE Report 50-269, -270, -287/76-2 i

RESPONSE

Information regarding Infraction I.3, IE Report 50-269, -270, -287/76-2 s

was transmitted in a supplementary response dated June 11, 1976.

Ad-ditionally, the following information is provided:

Sampics of the ventilation air leaving the Radioactive Waste Manage-a.

l ment Building are taken daily.

Analyses are conducted for iodine and

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particulate activity. Also, a periodic evaluation will be made of the j

flow rate through the ventilation system so that if activity is detected i

a complete evaluation of the quantities released may be made. The l

procedure for this flow evaluation will be written and the first analysis j

will be performed by August 1,1976.

1 b.

Calibrations of RIA-52 were last completed on August 25, 1975.

Records of this calibration are available.

t Written records of daily checks on RIA-52 operation are maintained.

c.

I (It should be noted that the numerical designation of the gaseous monitor on the radioactive waste building exhaust ventilation system has been changed to RIA-53.)

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Item Response to Infraction I.4, IE Report 50-269, -270, -287/76-2 1

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RESPONSE

A Technical Specification change request was submitted to NRC/0NRR by letter dated May 27, 1976 in order to revice the analytical sensitivities for radiological environmental samples.

Also included in this letter and in a June 4, 1976 letter to NRC/0IE were interim analytical sensitivities to be used during the evaluation of the proposed change.

5.

Item Unresolved item 74-3/3, R0 Report 50-269/74-3, 50-270/74-2, Training of Unlicensed Utility Operators

RESPONSE

A checklist for operator training of waste disposal systems has been developed and was distributed for use on June 9, 1976. Operators will not be given responsibility to carry out any of the tasks shown on the checklist until qualified personnel have signified that the operator has been adequately trained for the task to be performed.

6.

Item Plant Personnel Familiarity with Radiation Monitor Indications i

RESPONSE

The actions taken with regard to Item 1 above will provide the operators l

with the setpoints and the bases for these setpoints for each monitor.

As noted previously, this action should be completed by August 10, 1976.

In addition, this material will be reviewed with the personnel on each operating shift by August 30, 1976.

In addition, in order to assist operators in gaining a high standard of awareness, as well as to help evaluate problems with monitor setpoints, a Radiation Monitor Alarm Log has been initiated and will be maintained at least until September 1,1976.

Operators record the time each alarm is received whether it is the high or alert alarm, the action taken, and 1

the time the monitor alarm clears.

6 7.

Item Response to Identified Problems, Timeliness of Corrective Action and Effectiveness of Corrective Action

RESPONSE

It is recognized that the area of radiation monitoring has required an extensive period of time for resolution; however, it must also be recognized that significant effort has been expended in the development

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I and improvement of the radiation monitoring system at Oconee.

Many l

s solutions to the monitors have been attempted during this time period, some of which have served to improve the performance and reliability of j

the monitors. Outlined in the above responses are actions which it is currently believed will resolve the remaining outstanding items in an expeditious manner.

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