ML19224C954

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Submits Written Record of 790330-0413 Actions Re TMI Event: Observed Handling of Effluents,Water Balance & Transfers in Plant,Assisted in Review of Procedures
ML19224C954
Person / Time
Site: Crane Constellation icon.png
Issue date: 04/25/1979
From: Miller D
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
TASK-TF, TASK-TMM NUDOCS 7907100325
Download: ML19224C954 (2)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION fi Pl 9

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py April 25, 1979

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f' l MEMORANDUM FOR:

B. H. Grier, Director, Region I THRU:

[h A. B. Davis, Chief, Fuel Facility and Materials Safety Branch FROM:

~). E. Miller, Radiation Specialist

SUBJECT:

ACTIVITIES AT THREE MII.E ISLAND I arrived at TMI at about 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> en March 30, 1979, and began 14 straight evening shifts.

I returned to RIII cn April 13, 1979, after being whole body counted at IMI.

My job was to look at the handling of effluents, water balance and transfers in plant, and to help review procedu.es for any changes to these parameters. My i==ediate concern was determination of noble gas and iodine effluent rates.

I discussed with the licensee the need to collect the vent monitor iodine cartridge and grab sample the gas, and to subsequently routinely do the same.

This job entailed working with licensee operations and health physics persons, NRR representatives, ASE representatives, consultants, and IE inspectors on site.

The licensee appeared to be doing a good job of planning and performing recovery operations.

In general, our relations with the licensee were good even though we were all tired. The licensees health physics program seemed to suffer tha most during the early stages of recovery.

Ceccunications were poor, lines of authority unclear, and a general lack of direction was evident.

Procedures tc-alter equipment, nethods, or techniques were being reviewed by NRR and the licensee with IE participating only af ter the procedures were signed. This led frequently to consternation when significant problems were identified by IE health physics persons and the procedures had to go back for revision.

It seemed that NRR persons were reluctant to have IE inspectors review procedures.

This was not true in all cases.

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,* M B'. H. Grier 2-April 25, 1979 NRC IE health physics persons on site made a significant contribution in discovery of existing conditions and helping the licensee scope jobs to be done.

Several plant design changes could alter the effluent release con-sequences of this type of incident.

Possible changes are:

1.

Alteration of the containment sumps operation so that it would isolate by some parameter other than high contain=ent pressure.

2.

Provide an off-line filtration system for the condenser vacuum pump discharge for use in such an emergency.

3.

Change the location and design of vent monitors so their f unction is not negated by an incident.

b.$.

D. E. Miller Radiation Specialist

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