ML19322D930
| ML19322D930 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/12/1980 |
| From: | Silver H Office of Nuclear Reactor Regulation |
| To: | Gammill W Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19322D920 | List: |
| References | |
| NUDOCS 8003110235 | |
| Download: ML19322D930 (2) | |
Text
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2/12/80 8 l --
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MEMORAfiDUM FOR: William P.'Gamill NM
- J. C.ms FROM:
Harley Silverr gg
SUBJECT:
PRELIMIliARY RESP 0!lSE TO 2/5/80 LETTER FROM SEfMTORS HART & SIMPS 0ti My ccaments regarding THI-2 events in response to the letter of Senators Hart
, and Sintpson of February 5,1980 are as follows.
I understand that I&E has the prirre responsibility for responding to that letter.
Since I am leaving this evening for a twi-day trip and a response is desired by Thursday, the following is mostly.from memory.
I will be happy to discuss these items furth'er on Friday.
In response'to the first, second, and third inquiries regarding HPI actuation events at TMI-2, DPM did.not notify other utilities of these incidents or advise them of appropriate corrective action.
The lead responsibility in each case rested with I&E at the time, fiRR position was to respond to any ISE
' requests for assistance.
(lione were made to my knowledge.)
The appropriate vehicle for such notification would have been I&E bulletins, but I am not aware
.M that.any were issued for any of these events. LER summariw oriefly describing u,t these events were published and available to all utilities.
4 With regard 'to the 4/23/78, event, I specifically offered fiRR assistance verbally to the I&E inspector if it was felt necessary, but no such request for assistance was rade.
lievertheless, on July 5,1978, when I received a copy of what was then apparently an internal Pad Ed report on the incident, I forwarded it to the Reactor Systems Branch of DSS, asking, "If you feel we should do more, please let me know."
The report was returned without coment.
Essentially the same report, modified slightly in form, was submitted formally by Met Ed letter to I&E dated 7/24/78 and was distributed widely within liRR, and I assume I&E.
I am not aware of any resultant action.
" 80 031 in 2
William P. Gam.ill The fourth requ2st deals with follow-up work with respect to these events.
Item 1 of Amend ent'4.to the THI-2 license covers avoidance of injection of HaOH into the RCS during inadvertent actuations of the ECCS, such as the events in question.
Amendment 6 addresses changing the RCS pressure-low trip setpoint to increase-the
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margin to HPI so that a rapid depressurization will not unnecessarily cause HPI as frequeltly as would othergise be the case.
With regard to the fif'th question, other than Amend:aent 6 noted above, I do not recall much emphasis within NRR (or I&E, for that matter) on reducing the number of inadvertent HPI actuations.
To respond to the questions about the condensate polishing system, I subscribe to the draft response prepared by ' rry Mazetis in RSB on February 11, 1980.
x Harley Silver y
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