ML20215E271
| ML20215E271 | |
| Person / Time | |
|---|---|
| Site: | Berkeley Research Reactor |
| Issue date: | 03/26/1975 |
| From: | Prussin S CALIFORNIA, UNIV. OF, BERKELEY, CA |
| To: | NRC |
| Shared Package | |
| ML20215E220 | List:
|
| References | |
| FOIA-86-811 3079, NUDOCS 8612190101 | |
| Download: ML20215E271 (6) | |
Text
-
y
~
,r E p s'e.
p
- 'n,g Q,
' djfl;
(
A
!# d
- DNIVERSITY OF CALIFORNIA. BERKELEY
'A
,5
- y
~p'
' f, ;..
M a
-. _. -. - y
.g6
,+ n y
4
?h q
- i BEREELEY, CALIFORNIA ' 94720 4
COLLEGE OF ENCINEEIUNC DEPARTMENT CF NL' CLEAR ENCINEERING March 26, 1975
~!
t Director Directorate of Licensing U.S. Nuc?. ear' Regulatory Commission Washingtion, D.C. 20545
\\
Re:
Faci.lity License R-10.1
Dear Sir:
. This' letter is to report on 10 CFR 50.59 changes to the Berkeley Research Reac. tor for the periods August 1973 to August 1974.
The listed ' changes were reviewed by the Reactor staff and the Reactor Hazards. Committee.
These changes do not consti-tute an unreviewed safety question in that:
s (1)
They do not increas'e the probability of occurrence of an accident analyzed in the Safety Analysis Report.
(2)
They do not' increase the censequences of an accident analyzed in the Safety Analysis Report.
7 (3)
They.do,not create the possibility of occurrence of nuclear accident not previously analyzed in the y
l Safety Analysis Report.
)
Modification of Remote Monitor Panel in Area Control Office
)
I.
l Date:
September 7, 1973 Description'of change:
i l
Replacement of remote-monitor panel in Area Control Ojfice to allow ccntrol of stack-gas-monitor range switch and of normal-to-emergency-ventilation switch i
I from Area Control' Office.
An additional objective was to improve layout of wiring in the panel and to provide plug connection, rather than hard wiring, to the panel for' greater ease of servicing.
Former panel.had:
All area. monitor meter readouts with an alarm i
light for each.
s u
Failure; alarm light'for area monitors (low-4] -
level trip indicator).
Low-water-level-in-pool alarm light.
Buzzer to indicate that any one alarm light is lit.
I e612190101 861216 PDR FOIA GEORCE86-811 PDR
,h
~
~~
~
H
' $ D'irector h 26, 1975'
._ d. Marc 4$
[
It (C
?
m%
m; y New panel has,'in addition:
iQ Two lights indicating whether stack-gas
{$$/;-
J monitor is on 10k or 1000k range.
C 74 Push-button switch which will switch stack-gas I.
monitor between 10k and 1000k ranges.
N Two lights indicating whether ventilation system 9
is on normal or emergency.
'{
'I
' Push-button switch which will switch ventilation system from normal to emergency.
Summary of Safety Evaluation:
h Formerly, it was not possible, in the event that a radiogas release caused evacuation of the reactor laboratory, to either change the range switch on l
the stack-gas monitor, or to change from normal to emergency ventillation systems without re-entering 1140.
This could subject a person so re-entering to a radiation exposure whose magnitude would depend l
on the details.of the release.
Now, it is possible to control both switches either fro'm the console or l
from the Area Control Office.
Power to the reuiote-i monitor panel comes, as before, from the console 1
and would revert to the emergency p,ower systbm in case of a failure of the normal system.
The im-proved layout of the wiring would add to the reliabil-1 l
ity of the entire' installation..
l II. Publication of the Revised Berkeley Research Reactor Emergency Plan.
Date:
September 10, 1973 Description of change:
Publication of' revised Emergency Plan.
Action was initiated by a request from the Reactor Hazards Committee, and by receipt of a document from the USAEC entitled " Guide to the Preparation of Emer-gency Plan and Utilization Facilities", December 1970.
The Revised Emergency Plan was distributed to campus officials, members of the Reactor Hazards Committee, and to all holders of the Reactor Opera-l tions Manual.
Summary of Safety Analysis:
1 Radiation incidents up to the level requiring
{
evacuation of the' reactor laboratory and the patio
.above the reactor have been discussed in both the original and the. revised Emergency' Plan.
In addition, the revised Plan includes provisions for the following situations:
1.
Incidents requiring evacuation of the entire building (Etcheverry Hall).
t
e k
March 26, 1975 hi
(
- Dir:ctor '
&fs
- Of f
.,{Nfk 12.-
Incidents requiring evacuation.-of" portions of 9;
W p
the' surrounding residential area.:
7~~ ~ :
/$.
3.
Incidents occasioned by a bomb threat.
}
'4.
Incidents occasioned by civil unrest.
7 5.
Incidents requiring individuals to be trans-ported off campus for medical assistance.
In each case, procedures to be followed are outlined and persons to be in authority are named.
Two charts, provided as Appendixes A-1 and A-2, summarize, for easy reference, the chain of command for incidents occurring either during working hours or during off hours.
Other appendixes provide telephone lists for both on and off-campus emergency services.
The provisions of the revised Emergency Pl:.n for inci-dents of a. nature not contemplated in the original Plan should add significantly to the effectiveness of actions to be taken under such circumstances.
Sincerely,
% G fed Stanley G. Prussin Reactor Administrator l
l SGP: irs l
s
(,
i 1
IVEIiSiTY OF: CALIFORNIA, BERKELEY: *-
a
-n
, r, c Eb-MV e 3EREEIxY
- DAVIS
- IRVINE. EDS ANCEE.E3
- RZYEMIDE
- SAN DIECO. MN FRANCISCO
?
.nI SANM BARMRA
- SMM CRUZ 4:f,
j
~
a.n M.
cot.1.ECE bF ENCINEERING BERKELEY, CA1.IFORNIA 94720
.A
[o.
DEPARTMENT OF NUC1 EAR ENCINEERING *
/ @,'
.h March 26, 1975
'Q 7)r H
JLI,
.g\\$
o
'APR3 1975.
C Director
?
Directorate' f Licensing S
- t. w. nca p ).
U.S. Nuclear. Regulatory Commission Wm; Washington,.D.'C. 20545 d?i75$
q
- Re:
Facility License R-101 M
N
Dear Sir:
This letter is to report on 10 CFR 50.59 changes to the
'~
Berkeley Research Reactor for the periods August 1973 to August 1974.
The listed changes were reviewed by the Reactor staff and the Reactor Hazards Committee.
These changes do not consti-tute an unreviewed safety question in that:
,e
.r (1)
They do not increase the probability of occurrence of an accident analyzed in the Safety Analysis Report.
(2)
They do not increase the consequences vf uli avuldessi.
analyzed in the Safety Analysis Report.
(3)
They do not create the possibility of occurrence of nuclear accident not previously analyzed in the Safety Analysis _ Report.
I.
Modification of Remote Monitor Panel in Area Control Office Date:
September'7, 1973 Description'of4' change: G -
Rep'lacement of remote-monitor panel in Area Control Office to allo'w' control of stack-gas-monitor range switch and of normal-to-emergency-ventilation switch from Area Control Office.
An additional objective was to improve layout of wiring in the panel and to provide plug connection,- rather than hard wiring, to the panel for greater ease of servicing.
Former panel had:
All area monitor! meter. readouts with'an alarm light for each.
q Failure alarm light for area monitors (low-
/
q, level trip indicator).
g4 Low-water-level-in pool alarm light.
}
@g h
s Buzzer to indicate that any one alarm light 6
Yf is lit.
& 77 r" ~
/
3079$
Maren 'z u, 19 /d
.; 7
, uAreccut
-z-
+-
(
f New panel has, - in a.ddition:'
'l
.___ ;Two lights. indicating whether. stack-gas g.
yw smonitor is on 10k.ory 000k. range.,
~
l Push-button switch which will switch stack-gas monitor between 10k and 1000k, ranges.
i Two lights indicating whether. ventilation system is on normal or emergency.
- Push-button switch which will switch ventilation system from~ normal to emergency.
Summary of Safety Evaluation:
Formerly, it was not possible, in the event that a radiogas release caused evacuation of the reactor O
laboratory, to either change the range switch on the stack-gas monitor, or to change from normal to emergency ventillation systems without re-entering 1140.
This could subject a person so re-entering to a radiation exposure whose magnitude would depend on the details of' the ' release.
Now, it is possible i
to control both switches either~from the console or
't from the Area Control Office.
Power to the remote-monitor panel comes, as before, from the console and would revert to the emergency power system in y
case of a failure of the normal system.
The im-1 proved layout of the wiring would add to the reliabil-ity of the entire installation.
'II. ' Publication of the Revised Berkeley Research Reactor Emergency Plan.
Date:
September 10, 1973 Description of change:,
Publication of revised Emergency Plan.
Action was initiated by a request from the Reactor Hazards Committee, and by receipt of a document from the USAEC entitled " Guide to the Preparation of Emer-gency Plan and Utilization Facilities", December 1970.
The Revised Emergency Plan was distributed to campus officials, members of the Reactor Hazards Committee, and to all holders of tro R2 actor Opera-t: ions Manual.
~
Summary of Safety Analysis: _.
Radiation incidents up to the level requiring evacuation of the reactor laboratory and the patio above the reactor have been discussed in both the original and the revised Emergency Plan.
In addition, the revised Plan includes provisions for the following situations:
t.
1.
Incidents requiring evacuation of the entire building (Etcheverry Hall).
N....
m --
3 "hf; kbir:ctor--
.h
~~-3-'
.Mh;h26,1975
' A M A 9 K y " ' '
i
~ d
^ -
=
Ta?pgl{* * = '
h'j{g$yv -
+..
. -.c
~..
y 2MiIncidents : requiring evacuation.?of portions. of ~
~
4,ef
- the surrounding residential area.
,-q, 3.
Incidents ' occasioned by 'a' bomb threat.
4.-
Incidents occasioned by civil unrest."
5.-
Incidents requiring individuals to be trans-ported off campus _for medical assistance.
In each~ case, procedures to be followed are outlined and persons :to:be in authority are named.
Two charts, provided - as Appendixes A-1 and A-2, summarize, for easy reference, the chain of command for incidents occurring either during working hours or during off hours.
Ot;her. appendixes provide telephone lists for both on and off-campus emergency services.
The provisions of'the. revised Emergency Plan for inci-dents of a nature not contemplated in the original Plan should add significantly to the effectiveness of actions to be taken under-such circumstances.
Sincerely, G.f u g Stanley G. Prussin Reactor Administrator SGP: irs I
T e
1 8i
- f
- i !
$