ML20212F076: Difference between revisions

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| document type = CORRESPONDENCE-LETTERS, OUTGOING CORRESPONDENCE
| document type = CORRESPONDENCE-LETTERS, OUTGOING CORRESPONDENCE
| page count = 5
| page count = 5
| project = TAC:M99429, TAC:M99431
| stage = RAI
}}
}}


=Text=
=Text=
{{#Wiki_filter:____-_ - _                         .          .
{{#Wiki_filter:____-_ - _
i Octcber 22. 1997
i Octcber 22. 1997
_ Ms. Irene Johnson, Acting Manager Nuclear Regulatory Services
_ Ms. Irene Johnson, Acting Manager Nuclear Regulatory Services
                      - Commonwealth Edison Company Executive Towers West 111 -
- Commonwealth Edison Company Executive Towers West 111 -
1400 Opus Place, Suite 500 Downers Grove,IL 60515
1400 Opus Place, Suite 500 Downers Grove,IL 60515


Line 26: Line 28:


==Dear Ms. Johnson:==
==Dear Ms. Johnson:==
 
h its {{letter dated|date=August 13, 1997|text=letter dated August 13,1997}}, Commonwealth Edison Company (Comed) requested relief from certain requirements of Article IWA-5243(a) of the American Society of i
h its letter dated August 13,1997, Commonwealth Edison Company (Comed) requested relief from certain requirements of Article IWA-5243(a) of the American Society of i
l Mechanical Engineers (ASME) Boller ar,d Pressure Vessel Code (Code), Section XI,1989 a
l                       Mechanical Engineers (ASME) Boller ar,d Pressure Vessel Code (Code), Section XI,1989 a
Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in the submi'tal and concluded that additional information is required to complete its review.
Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in               >
the submi'tal and concluded that additional information is required to complete its review.
Enclosed is the request for additional information.
Enclosed is the request for additional information.
Sincerely, ORIGINAL SIGNED BY:
Sincerely, ORIGINAL SIGNED BY:
Clyde Y. Shiraki, Senior Project Manager Project Directorate 111-2 Division of Reactor Projects -lil/IV                   g'
Clyde Y. Shiraki, Senior Project Manager Project Directorate 111-2 g'
                                                                          -Office of Nuclear Reactor Regulation Docket Nos. 50-295 and 50-304
Division of Reactor Projects -lil/IV
-Office of Nuclear Reactor Regulation Docket Nos. 50-295 and 50-304


==Enclosure:==
==Enclosure:==
- RAI                                                           23b               fhE@D@QDU t
- RAI 23b fhE@D@QDU t
tm.: See next page ll111.lll.llillLllll' DISTRIBUTION:
tm.: See next page ll111.lll.llillLllll' DISTRIBUTION:
Docket File : PUB!!C-                       PDill-2 r/f               EAdensam                   RCapra CShiraki.                 CMoore           OGC,015B18               ACRS, T2E26                 MGalloway, Rill DOCUMENT NAME: G:\CMNTJR\ ZION \Zl99429.RAI-Tt receive a copy of this document, indicate in the box; *C" = Copy without enclosures *E" = Copy with enclosures *N* = No copy OFFICE                 PM:PD3-2                         l_APDI-2                 L       D:PD3-2                         lF NAME                   CSHIRAKI                         DfATOltE                         RCAPRA P DATE                   101/97                             10A%97                           10b/97 9711040175 971022                                       OFFICIAL RECORD COPY PDR               ADOCK 05000295 4                                   PDR
Docket File : PUB!!C-PDill-2 r/f EAdensam RCapra CShiraki.
CMoore OGC,015B18 ACRS, T2E26 MGalloway, Rill DOCUMENT NAME: G:\\CMNTJR\\ ZION \\Zl99429.RAI-Tt receive a copy of this document, indicate in the box; *C" = Copy without enclosures *E" = Copy with enclosures *N* = No copy OFFICE PM:PD3-2 l_APDI-2 L
D:PD3-2 l F NAME CSHIRAKI DfATOltE RCAPRA P DATE 101/97 10A%97 10b/97 9711040175 971022 OFFICIAL RECORD COPY PDR ADOCK 05000295 4
PDR


i
i
."    _L.     '
_L.
Octeber 22, 1997-Y               Ms. Irene Johnson,' Acting Manager                                                                                                         '
Octeber 22, 1997-
Nuclear Regulatory Services
. Y Ms. Irene Johnson,' Acting Manager Nuclear Regulatory Services
                          . Commonwealth Edison Company Executive Towers West til 1400 Opus Place, Suite 500 ~
. Commonwealth Edison Company Executive Towers West til 1400 Opus Place, Suite 500 ~
Downers Grove,IL 60515 9
Downers Grove,IL 60515 9


==SUBJECT:==
==SUBJECT:==
_ REQUEST FOR ADDITIONAL INFORMATION FOR THE EVALUATION OF THE THIRD 10 YEAR INTERVAL INSPECTION PROGRAM PLAN REQUEST FOR                                                       ,
_ REQUEST FOR ADDITIONAL INFORMATION FOR THE EVALUATION OF THE THIRD 10 YEAR INTERVAL INSPECTION PROGRAM PLAN REQUEST FOR RELIEF NO. CR ZION NUCLEAR POWER STATION, UNITS 1 AND 2 (TAC NOS. M99429 AND M99431) -
RELIEF NO. CR ZION NUCLEAR POWER STATION, UNITS 1 AND 2 (TAC NOS. M99429 AND M99431) -


==Dear Ms. Johnson:==
==Dear Ms. Johnson:==
 
J in its {{letter dated|date=August 13, 1997|text=letter dated August 13,1997}}, Commonwealth Edison Company (Comed)
J in its letter dated August 13,1997, Commonwealth Edison Company (Comed)                                                           *
;C requested relief from certain requirements of Article IWA 5242(a) of the American Society of i:
;C requested relief from certain requirements of Article IWA 5242(a) of the American Society of i:                         Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Code), Section XI,1989 4
Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Code), Section XI,1989 4
  -:,                    Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in
Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in
                          ^ the submittal and concluded that additional information is required to complete its review.'
^ the submittal and concluded that additional information is required to complete its review.'
4 Enclosed is the request for additional information.
Enclosed is the request for additional information.
l Sincerely, l
4 l
,                                                                                              ORIGINAL SIGNED BY:
l Sincerely, ORIGINAL SIGNED BY:
Clyde Y. Shiraki, Senior Project Manager Project Directorate 111-2 i                                                                                               Division of Reactor Projects lil/IV Office of Nuclear Rsactor Regulation Docket Nos. 50-295 and 50-304 L         ,
Clyde Y. Shiraki, Senior Project Manager Project Directorate 111-2 i
Division of Reactor Projects lil/IV Office of Nuclear Rsactor Regulation Docket Nos. 50-295 and 50-304 L


==Enclosure:==
==Enclosure:==
RAI   .
RAI
)J                         cc !See'next page <
)J cc !See'next page <
i'
i' DISTRIBUTION.
.          DISTRIBUTION.
Docket File PUBLIC.
Docket File       PUBLIC .                 PDill 2 r/f -         _
PDill 2 r/f -
EAdensam                 RCapra C8hiraki           CMottrs                   OGC,015B18                         ACRS,T2E26                 MGalloway, Rill 4 -
EAdensam RCapra C8hiraki CMottrs OGC,015B18 ACRS,T2E26 MGalloway, Rill 4 -
DOCUMENT NAME: G:\CMNTJR\ ZION \Zl99429.RAI g           Ta receive a copy or this doeurrtent, indicale in the bou "C" = Copy without enclosures *E* = Copy with enclosures *N" = No copy
DOCUMENT NAME: G:\\CMNTJR\\ ZION \\Zl99429.RAI g
;                OFFICE ^ PM:PD3-2                                       J       PDj-2                 L         D:PD3-2                                   S h                 NAME-     CSHIRAKI                                       B19tYOhtE                               RCAPRA P n             DATE     10//97                                         10A497                                 10kN97 i
Ta receive a copy or this doeurrtent, indicale in the bou "C" = Copy without enclosures *E* = Copy with enclosures *N" = No copy OFFICE ^
PM:PD3-2 J
PDj-2 L
D:PD3-2 S
h NAME-CSHIRAKI B19tYOhtE RCAPRA P n
DATE 10//97 10A497 10kN97 i
OFFICIAL RECORD COPY
OFFICIAL RECORD COPY


1
1
            ' c ar:c, y                 t                                 UNITED STATES
' c ar:c, y
    ,    s*                  g                 NUCLEAR REGULATORY COMMISSION e                        2                             WASHINGTON, T5 C,30se6 0001                                   '
t UNITED STATES s
          'N ..,. /                                         October 22, 1997
g NUCLEAR REGULATORY COMMISSION 2
              . Ms. Irene Johnson, Acting Manager Nuclear Regulatory Services Commonwealth Edison Company-Executive Towers West lli 1400 Opus Place, Suite 500 Downers Grove,IL 60515
WASHINGTON, T5 C,30se6 0001 e
'N..,. /
October 22, 1997
. Ms. Irene Johnson, Acting Manager Nuclear Regulatory Services Commonwealth Edison Company-Executive Towers West lli 1400 Opus Place, Suite 500 Downers Grove,IL 60515


==SUBJECT:==
==SUBJECT:==
REQUEST FOR ADDITIONAL INFORMATION FOR THE EVALUATION OF THE                   l 4
REQUEST FOR ADDITIONAL INFORMATION FOR THE EVALUATION OF THE THIRD 10 YEAR INTERVAL INSPECTION PROGRA'.; Pl.AN REQUEST FOR 4
THIRD 10 YEAR INTERVAL INSPECTION PROGRA'.; Pl.AN REQUEST FOR                   '
RELIEF NO. CR ZION NUCLEAR POWER STATION, UNITS 1 AND 2 (TAC NOS, M99429 AND M994311
RELIEF NO. CR ZION NUCLEAR POWER STATION, UNITS 1 AND 2 (TAC NOS, M99429 AND M994311


==Dear Ms. Johnson:==
==Dear Ms. Johnson:==
 
In its {{letter dated|date=August 13, 1997|text=letter dated August 13,1997}}, Commonwealth Edison Company (Comed) requested relief from certain requirements of Article IWA-5242(a) of the American Society of Mechanical Engineers (ASME) Boller and Pressure Vessel Code (Code), Section XI,1989 Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in the submittal and concluded that additional information is required to complete its review.
In its letter dated August 13,1997, Commonwealth Edison Company (Comed) requested relief from certain requirements of Article IWA-5242(a) of the American Society of Mechanical Engineers (ASME) Boller and Pressure Vessel Code (Code), Section XI,1989 Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in the submittal and concluded that additional information is required to complete its review.
Enclosed is the request for additional information.
Enclosed is the request for additional information.
4 Sincerely, 2
4 Sincerely, 2
Cly e Y. Shiraki, Senior Project Manager Project Di actorate 111-2 Division of Reactor Projects     N Office of Nuclear Reac:oi bgulation Docket Nos. 50-295 and 50-304
Cly e Y. Shiraki, Senior Project Manager Project Di actorate 111-2 Division of Reactor Projects N
Office of Nuclear Reac:oi bgulation Docket Nos. 50-295 and 50-304


==Enclosure:==
==Enclosure:==
RAI L           cc: See next page I
RAI L
cc: See next page I
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i t
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me . ,
me.,
    'I                 liJohnson:         .
'I liJohnson:
Zion Nuclear Power Station Commonwealth Edison Company-                   Unit Nos.1 and 2 oc: -
Zion Nuclear Power Station Commonwealth Edison Company-Unit Nos.1 and 2 oc: -
Michael I. Miller, Esquire -.                                                 -
Michael I. Miller, Esquire -.
Sidley and Austin -
Sidley and Austin -
                  ~ One First Natloaal Plaza Chicago, Illinois 60603                                       4 -
~ One First Natloaal Plaza Chicago, Illinois 60603 4 -
Dr. Cecil Lue-Hing -
Dr. Cecil Lue-Hing -
Director of Research and Development Metropolitan Sanitary District -
Director of Research and Development Metropolitan Sanitary District -
of Greater Chicago 100 Eest Erie Street Chicago, Illinois 60611 Phillip Steptoe, Esquire Sedley and Austin One First National Plaza L-                     Chicago, Illirnsl60603 -
of Greater Chicago 100 Eest Erie Street Chicago, Illinois 60611 Phillip Steptoe, Esquire Sedley and Austin One First National Plaza L-Chicago, Illirnsl60603 -
Mayor of Zion                                                                       '
Mayor of Zion Zion,tilinois 60099 tilinois Department of Nuclear Safety-Office of Nuclear Facility Safety 1035 Outer Park Drive' Springfield, Illinois 62704 U.S. Nuclear Regulatory Commission Zion Resident inspectors Office ji
Zion,tilinois 60099 tilinois Department of Nuclear Safety-Office of Nuclear Facility Safety 1035 Outer Park Drive' Springfield, Illinois 62704 U.S. Nuclear Regulatory Commission Zion Resident inspectors Office ji         - 105 Shiloh Blvd.
- 105 Shiloh Blvd.
Zion, Illinois 60099 Regional Administrator
Zion, Illinois 60099 Regional Administrator
                      .U.S. NRC, Region lil 801 Warrenville Road '
.U.S. NRC, Region lil 801 Warrenville Road '
Lisle, Illinois 60530-4351-
Lisle, Illinois 60530-4351-
: Station Manager Zion Nuclear Power Station 101 Shiloh Blvd.-
: Station Manager Zion Nuclear Power Station 101 Shiloh Blvd.-
Line 115: Line 129:
1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 -
1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 -
I i
I i
  .        :~. -
:~.


      ,-                                                                                                              o
o
    *.,~                                 .
*., ~
7 REQUEST FOR ADDITIONAL INFORMATIONI 4
7 REQUEST FOR ADDITIONAL INFORMATIONI 4
1.L For both units, specify the types of inspections (magnetic prticle, v!sual, liquid penetrant or -
1.L or both units, specify the types of inspections (magnetic prticle, v!sual, liquid penetrant or -
ultrasonic) that were performed on studs or stud assemblies, the total number of studs or         '
F ultrasonic) that were performed on studs or stud assemblies, the total number of studs or
            +
+
                    - stud assemblies, the number that were inspected and the results of those inspections.
- stud assemblies, the number that were inspected and the results of those inspections.
0
0
              - 2. Describe any inspections on borated systems that_ are required for reactivity control that are
- 2. Describe any inspections on borated systems that_ are required for reactivity control that are
                  ' performed during Plant shutdown or startups or during presso e increases or decreases and the most rac9td results of those inspections on both units.
' performed during Plant shutdown or startups or during presso e increases or decreases and the most rac9td results of those inspections on both units.
: 3. During the most recent plant shutdowns, verify that the reactor vessel flange leakage -
: 3. During the most recent plant shutdowns, verify that the reactor vessel flange leakage -
detection systems were operable and that they did not indicate the presence of any leakage during the shutdowns, j             4.'   Describe the qualifications and experience of the personnel who performe4 the most record reactor vessel head disassemblies, and provide some assurance that any bonc acid crystai l                     buildup would have been documented and reported.
detection systems were operable and that they did not indicate the presence of any leakage during the shutdowns, j
l-           . 5.- Describe any inspections that are performed after the reactor vessel head is detensioned.           '
4.'
L                   - State the purpose of the inspections, qualifications of the personnel performing the E
Describe the qualifications and experience of the personnel who performe4 the most record reactor vessel head disassemblies, and provide some assurance that any bonc acid crystai l
buildup would have been documented and reported.
l-
. 5.- Describe any inspections that are performed after the reactor vessel head is detensioned.
L
- State the purpose of the inspections, qualifications of the personnel performing the E
laspections, Cie results of the inspections, and provide some assurance that any boric acid crystal b'illdup would have been documented and reported.
laspections, Cie results of the inspections, and provide some assurance that any boric acid crystal b'illdup would have been documented and reported.
: 6. Verify that tho' inspections of the reactor vesse! flanges were tiie only Code-required b                     inspections that were omitted during the most recent disassembles of the reactor vessel
: 6. Verify that tho' inspections of the reactor vesse! flanges were tiie only Code-required b
                    -heads.
inspections that were omitted during the most recent disassembles of the reactor vessel
-heads.
i ENCLOSURE 1
i ENCLOSURE 1
y.,,..,.,,                           _
y.,,..,.,,
_.}}
_.}}

Latest revision as of 06:22, 4 December 2024

Forwards Request for Addl Info Re 970813 Request for Evaluation of Third 10-yr Interval Insp Program Plan Request for Relief CR-25 for Units 1 & 2
ML20212F076
Person / Time
Site: Zion  File:ZionSolutions icon.png
Issue date: 10/22/1997
From: Shiraki C
NRC (Affiliation Not Assigned)
To: Johnson I
COMMONWEALTH EDISON CO.
References
TAC-M99429, TAC-M99431, NUDOCS 9711040175
Download: ML20212F076 (5)


Text

____-_ - _

i Octcber 22. 1997

_ Ms. Irene Johnson, Acting Manager Nuclear Regulatory Services

- Commonwealth Edison Company Executive Towers West 111 -

1400 Opus Place, Suite 500 Downers Grove,IL 60515

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION FOR THE EVALUATION OF THE THIRD 10-YEAR INTERVAL INSPECTION PROGRAM PLAN REQUEST FOR RELIEF NO. CR-25 ZION NUCLEAR POWER STATION, UNITS 1 AND 2 (TAC NOS. M99429 AND M99431)

Dear Ms. Johnson:

h its "A97010, Requests Authorization for Alternative to One Time Augmented Insp of RPV Shell Welds Set Forth in 10CFR50.55a(g)(6)(ii) (A)(2) Per [[CFR" contains a listed "[" character as part of the property label and has therefore been classified as invalid.(5).Authorization to Use Partial Insp Coverage Requested|letter dated August 13,1997]], Commonwealth Edison Company (Comed) requested relief from certain requirements of Article IWA-5243(a) of the American Society of i

l Mechanical Engineers (ASME) Boller ar,d Pressure Vessel Code (Code),Section XI,1989 a

Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in the submi'tal and concluded that additional information is required to complete its review.

Enclosed is the request for additional information.

Sincerely, ORIGINAL SIGNED BY:

Clyde Y. Shiraki, Senior Project Manager Project Directorate 111-2 g'

Division of Reactor Projects -lil/IV

-Office of Nuclear Reactor Regulation Docket Nos. 50-295 and 50-304

Enclosure:

- RAI 23b fhE@D@QDU t

tm.: See next page ll111.lll.llillLllll' DISTRIBUTION:

Docket File : PUB!!C-PDill-2 r/f EAdensam RCapra CShiraki.

CMoore OGC,015B18 ACRS, T2E26 MGalloway, Rill DOCUMENT NAME: G:\\CMNTJR\\ ZION \\Zl99429.RAI-Tt receive a copy of this document, indicate in the box; *C" = Copy without enclosures *E" = Copy with enclosures *N* = No copy OFFICE PM:PD3-2 l_APDI-2 L

D:PD3-2 l F NAME CSHIRAKI DfATOltE RCAPRA P DATE 101/97 10A%97 10b/97 9711040175 971022 OFFICIAL RECORD COPY PDR ADOCK 05000295 4

PDR

i

_L.

Octeber 22, 1997-

. Y Ms. Irene Johnson,' Acting Manager Nuclear Regulatory Services

. Commonwealth Edison Company Executive Towers West til 1400 Opus Place, Suite 500 ~

Downers Grove,IL 60515 9

SUBJECT:

_ REQUEST FOR ADDITIONAL INFORMATION FOR THE EVALUATION OF THE THIRD 10 YEAR INTERVAL INSPECTION PROGRAM PLAN REQUEST FOR RELIEF NO. CR ZION NUCLEAR POWER STATION, UNITS 1 AND 2 (TAC NOS. M99429 AND M99431) -

Dear Ms. Johnson:

J in its "A97010, Requests Authorization for Alternative to One Time Augmented Insp of RPV Shell Welds Set Forth in 10CFR50.55a(g)(6)(ii) (A)(2) Per [[CFR" contains a listed "[" character as part of the property label and has therefore been classified as invalid.(5).Authorization to Use Partial Insp Coverage Requested|letter dated August 13,1997]], Commonwealth Edison Company (Comed)

C requested relief from certain requirements of Article IWA 5242(a) of the American Society of i

Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Code),Section XI,1989 4

Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in

^ the submittal and concluded that additional information is required to complete its review.'

Enclosed is the request for additional information.

4 l

l Sincerely, ORIGINAL SIGNED BY:

Clyde Y. Shiraki, Senior Project Manager Project Directorate 111-2 i

Division of Reactor Projects lil/IV Office of Nuclear Rsactor Regulation Docket Nos. 50-295 and 50-304 L

Enclosure:

RAI

)J cc !See'next page <

i' DISTRIBUTION.

Docket File PUBLIC.

PDill 2 r/f -

EAdensam RCapra C8hiraki CMottrs OGC,015B18 ACRS,T2E26 MGalloway, Rill 4 -

DOCUMENT NAME: G:\\CMNTJR\\ ZION \\Zl99429.RAI g

Ta receive a copy or this doeurrtent, indicale in the bou "C" = Copy without enclosures *E* = Copy with enclosures *N" = No copy OFFICE ^

PM:PD3-2 J

PDj-2 L

D:PD3-2 S

h NAME-CSHIRAKI B19tYOhtE RCAPRA P n

DATE 10//97 10A497 10kN97 i

OFFICIAL RECORD COPY

1

' c ar:c, y

t UNITED STATES s

g NUCLEAR REGULATORY COMMISSION 2

WASHINGTON, T5 C,30se6 0001 e

'N..,. /

October 22, 1997

. Ms. Irene Johnson, Acting Manager Nuclear Regulatory Services Commonwealth Edison Company-Executive Towers West lli 1400 Opus Place, Suite 500 Downers Grove,IL 60515

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION FOR THE EVALUATION OF THE THIRD 10 YEAR INTERVAL INSPECTION PROGRA'.; Pl.AN REQUEST FOR 4

RELIEF NO. CR ZION NUCLEAR POWER STATION, UNITS 1 AND 2 (TAC NOS, M99429 AND M994311

Dear Ms. Johnson:

In its "A97010, Requests Authorization for Alternative to One Time Augmented Insp of RPV Shell Welds Set Forth in 10CFR50.55a(g)(6)(ii) (A)(2) Per [[CFR" contains a listed "[" character as part of the property label and has therefore been classified as invalid.(5).Authorization to Use Partial Insp Coverage Requested|letter dated August 13,1997]], Commonwealth Edison Company (Comed) requested relief from certain requirements of Article IWA-5242(a) of the American Society of Mechanical Engineers (ASME) Boller and Pressure Vessel Code (Code),Section XI,1989 Edition, for the Zion Nuclear Power Station, Units 1 and 2. The staff has reviewed the data in the submittal and concluded that additional information is required to complete its review.

Enclosed is the request for additional information.

4 Sincerely, 2

Cly e Y. Shiraki, Senior Project Manager Project Di actorate 111-2 Division of Reactor Projects N

Office of Nuclear Reac:oi bgulation Docket Nos. 50-295 and 50-304

Enclosure:

RAI L

cc: See next page I

i t

,w:p+ r,-

e

_,-w--,-e-

me.,

'I liJohnson:

Zion Nuclear Power Station Commonwealth Edison Company-Unit Nos.1 and 2 oc: -

Michael I. Miller, Esquire -.

Sidley and Austin -

~ One First Natloaal Plaza Chicago, Illinois 60603 4 -

Dr. Cecil Lue-Hing -

Director of Research and Development Metropolitan Sanitary District -

of Greater Chicago 100 Eest Erie Street Chicago, Illinois 60611 Phillip Steptoe, Esquire Sedley and Austin One First National Plaza L-Chicago, Illirnsl60603 -

Mayor of Zion Zion,tilinois 60099 tilinois Department of Nuclear Safety-Office of Nuclear Facility Safety 1035 Outer Park Drive' Springfield, Illinois 62704 U.S. Nuclear Regulatory Commission Zion Resident inspectors Office ji

- 105 Shiloh Blvd.

Zion, Illinois 60099 Regional Administrator

.U.S. NRC, Region lil 801 Warrenville Road '

Lisle, Illinois 60530-4351-

Station Manager Zion Nuclear Power Station 101 Shiloh Blvd.-

Zion, Illinois 60099-2797 Document Control Desk-Licensing Commonwealth Edison Company '

1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 -

I i

~.

o

  • ., ~

7 REQUEST FOR ADDITIONAL INFORMATIONI 4

1.L or both units, specify the types of inspections (magnetic prticle, v!sual, liquid penetrant or -

F ultrasonic) that were performed on studs or stud assemblies, the total number of studs or

+

- stud assemblies, the number that were inspected and the results of those inspections.

0

- 2. Describe any inspections on borated systems that_ are required for reactivity control that are

' performed during Plant shutdown or startups or during presso e increases or decreases and the most rac9td results of those inspections on both units.

3. During the most recent plant shutdowns, verify that the reactor vessel flange leakage -

detection systems were operable and that they did not indicate the presence of any leakage during the shutdowns, j

4.'

Describe the qualifications and experience of the personnel who performe4 the most record reactor vessel head disassemblies, and provide some assurance that any bonc acid crystai l

buildup would have been documented and reported.

l-

. 5.- Describe any inspections that are performed after the reactor vessel head is detensioned.

L

- State the purpose of the inspections, qualifications of the personnel performing the E

laspections, Cie results of the inspections, and provide some assurance that any boric acid crystal b'illdup would have been documented and reported.

6. Verify that tho' inspections of the reactor vesse! flanges were tiie only Code-required b

inspections that were omitted during the most recent disassembles of the reactor vessel

-heads.

i ENCLOSURE 1

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