ML19253A628

Forwards Seismic Analyses in Response to IE Bulletins 79-14 & 79-14,Revision 1.Program Aimed at Verifying Accuracy of Input Info for Seismic Analyses of safety-related Piping Has Been Undertaken

ML19253A628
Person / Time
Site:	Millstone
Issue date:	08/01/1979
From:	Counsil W NORTHEAST UTILITIES
To:	Grier Boho NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 7909100594
Download: ML19253A628 (19)

Text

. . &

l' Mrl'HI!AST UTII.ITII!S P O Box 270 1i ,

HARTFORD. CONNECTICUT 06101 l C03) 6066911 k k J August 1, 1979 Docket No. 50-336 Mr. Boyce H. Grier, Director Region 1 Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406

References:

(1) B. H. Grier letter to W. G. Counsil dated July 18, 1979, transmitting I&E Bulletin #79-14, Revision 1.

(2) B. H. Grier letter to W. G. Counsil dated July 2,1979, transmitting I&E Bulletin #79-14.

Gentlemen:

Millstone Nuclear Power Station, Unit No. 2 Seismic Analyses, I&E Bulletin #79-14 __

Reference (2), as amended by Reference (1), requested Northeast Nuclear Energy Company (NNECON to initiste a program aimed at verifying the accuracy of input information for seismic analyses of safety-related piping. Subsequent to the receipt of this bulletin, communications with the NRC Staf f have resulted in a more concise understanding of the intent of the bulletin requiremerts.

As such, NNECO has embarked upon a program consistent with our present under-standing, with the following excepticns:

(1) Due to the extreme dif ficultica .ssociated with accessibility to portions of the containment spray piping, located on the interior surface of the containment dome, it is the intention of NNECO to examine those portions of the piping and supports using a visual inspection only. This would be performed using binocelors and other visual aids 7here necessary. It has been determined that the correctness of the existing analyses of this system can be verified by visual inspection techniques only.

(2) Insulation around some valves and embedments is extremely dif ficult and time-consuming to remove and replace. NNECO, therefore, intends to verify geometry and function at locations where removal of insula-tion would either result in unnecessary personnel exposure or be 2009100 594 Q n :. I n

duly ct becs>me using alternate techniques. This would include a sampliag of components where insulation is most readily removed and s 2rtial inspectirn of the remaining locations using probes and/or

_ucting away smal'. portions of insulation. Favorable results using these alternati.e techniques yielt high confidence from a statistical basis that che existing seismic ana jses are valid.

In response to the requirements of Itc. (1) of Reference (1) and based on subse-quent conversati,ns with the NRC Staf f , the following information is included as Attachment 1.

(1) A list of the safety-related systems to o. examined including their inspection schedule (i.e. , 60 days or 120 days) .

(2) One example system package used for surveillance with the following information:

(a) P&ID - color-coded Red : accessible - inspection within 60 days Blue: inaccessible - inspection within 120 days.

(b) Physical piping drawings - color-coded (c) Va?.ve drawings (d) Floor and wall penetration drawings (e) Pipe support detail drawings (f) A list of the above documents including:

(1) Identif ic ation (ii) Title (iii) Revision number (iv) Date We trust you find the above i-formation responsive to your request.

Very tru:y yours, FORTHEAST NL' CLEAR ENERGY COMPANY

/ /^ l

h. ( { { -71)v W. G. Counsil Vice President Attach =ent 3_b')[$h)

DOCKET No. 50-336 ATTACINENT 1 MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 SEISMIC ANALYSES, ISE BULLETIN #79-14 AUGUST , 197 9 33.LO:39

I REDUNDANT ACCESSIBLE  !

3 l

SYSTDI YES } NO t YlS(I) NO ( SOME COMMENTS l I Reactor Coolant X X l t l l '

I  !

Chemical and Volume  !

Most Piping Outside Control [ X l X Containment is Accessible.

I I i Emergency Core Cooling i X t i X Most Piping Outside

, Co nt a inment is Accessible.

i , j i Containment Spray j X  ! X j Most Piping Outside l

Containment is Accessible.

125 VDC Vital Switchgear l X j X l

i Chilled Water Piping Only.

Vent ,  :

i i l Spent Fuel Pool Cooling l X X I

Main Steam l

. X l l X I

l l Feedwater  ;  ;

X i X From Containment Iso. Vlv.

i j , i to S.G.

f Aux. Feedwater j X X ,

i I

, l l

Reactor Building Closed , i Redundant to Vital Cooling Water  ! X X Components.

I I

l Service Water X t X l

, i l

! I I Diesel Generator X X i Miscellaneous Containment Outer side of penetration Penetrations X accessible.

(0 i i

Q (1) 60-day inspect ton sc hed ule ,

w h (2) 120-day inspection schedule

SHEET 1 of 6 REV. O PROJECT: MILLSTONE UNIT 2 JOB 11867-014 SYSTEM: MAIN STEAM PIPE SlTPORT DRAk'INGS IDENTIFICATION NO. T ITLE REVISION DATE 490004 (R-34) MAIN STEAM - STEAM GENERATOR TO 2 5/8/75 TURBINE 490005 (R-32) MAIN STEAM - STEAM GENERATOR TO 2 5/8/75 TURBINE 490G06 (R-38) MAUi STEAM - STEAM GENERATOR TO 1 5/8/75 TURBINE 490007 (R-37) MAIN STEAM - STEAM GENERATOR TO 1 5/8/75 TURBINE 49000d (R-31) MAIN STEAM G. E. PIPING 1 5/7/75 413007 (h-4) MAE4 STEAM DOWNSTREAM OF ISO 1 5/9/75 VALVES TO TURBINE 413008 (H-7) MAIN STEAM DOWNSTREAM OF ISO 1 1/3/74 VALVES TO TURBDiE 413009 (R-6) MAIN STEAM DOWNSTREAM OF ISO 1 5/7/75 VALVES TO TLLBINE 413010 (H-8) MAIN STEAM DOWNSTREAM OF ISO 1 12/2/74 VALVES TO TURBINE 413011 (R-9) MAIN STEAM DOWNSTREAM OF ISO 2 5/8/75 VALVES TO TURBUiE 413012 (H-11) MAIN STEAM DOWNSTREAM OF ISO 3 1/3/74 VALVES TO TURBINE 413013 (H-13) MAIN STEAM DOWNSTREAM OF ISO 2 2/6/75 VALVES TO TURBINE 413014 (H-24) MAIN STEAM DOWNSTREAM OF ISO 5 5/8/75 VALVES TO TURBINE 413018 (H-6,R-4,R-5) MAIN STEAM 7 5/27/75 413019 (H-15,R-10) MAIN STEAM g. 4 6/4/75 u tb -o .,,r3,>, .,

413020 (H-14) MAIN STEAM 2 5/7/75

SHEET 2 of 6 REV, O PROJECT: MILLSTONE UNIT 2 JOB 11867-014 SYSTEM: MAIN STEM 1 PIPE St'PPORT DFA'INGe 1

IDENTIFICATION NO. TITLE REVIS105 DATE 413021 (H-22,R-18) MAIN STEAM 5 6/4/75 413022 (H-23,R-19 ) MAIN STEAM 2 5/8/75 413023 (R-20) MAIN STEAM 3 5/20/75 413024 (R-21,H-25 ) MAIN STEAM 4 6/4/75 413025 (R-22 ) MAIN STEAM 3 5/7/75 413028 (H-5,R-3) MAIN STEAM SUPPLY DOWNSTREAM OF 2 5/7/75 ISOLATION VALVES TO TURBINE 413029 (R-8) MAIN STEAM 4 5/7/75 413030 (R-23) ESUi STEM 1 2 5/7/75 413031 (H-9,R-7) MAIN STEAM 6 413032 (R-24,R-25) MAIN STEMI DOWNSTREAM OF ISO 7 5/23/75 VALVES TO TURBINE 413033 (H-26) MAIN STEAM DOWNSTREAM OF ISO 2 5/7/75 VALVES TO TURBINE 413037 (H-19) MAIN STEAM DUMP 10 COND. 8 A/B 5 5/14/75 CONTROL VALV 413038 (H-20) MAIN STEAM 1 5/7/75 413039 (H-21,R-16, MAIN STEAM DUMP TO COND. 8A & 8B 8 9/2/75 R-17) 413^41 (R-13) MAIN STEAM 3 5/7/75 413046 (H-12,R-11) MAIN STEAM 4 6/4/75 413071 (R-12) MAIN STEAM GEN TO TUR1 NE 5 o/3/75 413071 (H-15) o> so 413071 (H-16) * '^ # "20 d '

• NOTE: These drawings will be submitted at a later date.

SLEET 3 of 6 REV. O MILLSTONE UNIT 2 JOB 11867-014 PROJECT:

MAIN STEAM SYSTEM: . . _ . _

PIPE SUPPORT DRAWINGS IDEh7IFICATION NO. TITLE REVISION DAIE 413071 (R-15) 413071 (R-27) 413071 (R-28) 31386 MAIN STEAM 2 3/7/75 505325 MAIN STEAM FROM DUMP VALVE TO ATMOS PHERE O 1/21/75 505324 MAIN STEAM FROM DUMP VALVE TO ATMOS PHERE O 1/15/75 405398 MAIN STEAM FROM DUMP VALVE TO 1 1/13/75 ATMOSPIERE 405942 MAIN STEAM FROM DUMP VALVE TO ATMOS PIERE 3 5/7/75 405389 MAIN STEAM FROM DUMP VALVE TO ATMOSPIERE 1 5/7/75 495388 MAIN STEAM FROM DUMP VALVE TO ATMOS PIERE 3 2/16/75 412002 (R-3) M.S. FROM STM. GEN. TO ISOL VALVE 1 5/12/75 412003 01-3 & R-2) M.S. SUPPLY TO ISOL. VALVE TO TURB. 4 4/25/75 412004 (H-27 & R-26) M. S . S TM . GEN . TO ISOL. VALVE 4 6/11/76 412007 (H-1) M. S . S TM. GEN. TO ISOL. VALVE 3 1/10/75 41-2008 (R-1) M.S. TO AUX. F.W. PUMP TURBINE 0 11/20/73 412009 (H-2) M.S. SUPPLY TO ISOL. V. TO TURB. 5 8/10/75 412010 (H-28 & H-29) M.S. SUPPLY TO ILOL V. TO TURB. 3 5/14/75 412016 (R-1) M.S . SUPPLY TO ISOL. V. TO TURB. 2 5/7/75 LQj. '17.

SHEET 4 of 6 REV. O PROJECT: MILLSTONE UNIT 2 JOB 11867-014 SYSTEM: MAIN STEAM PIPE SUPPORT DRAWINGS IDENTIFICATION NO. TITLE REVISION DATE 4130b' (H-1) M . S . TO S . G . AUX. F . W . PUMP TURB. 2 5/8/75 413062 (R-2 & R-3) M.S. TO S.C. AUX. F.W. PUMP TURB. 3 5/8/75 413063 (R-2, R-4, R-9 M.S. TO S.G. AUX. F.W. PUMP TURB. 0 12/13/73 413065 (R-t) M. S . TO S . G . AUX. F .W. PUMP TURB. 1 1/2/75 413065 (H-3) M.S. TO S . C . AL. . F .W. PUMP TURB. 1 1/3/75 413072 (H-4) M.S. TO S.G. AUX. P.W. PUMP TURB. 1 1/13/75 413073 (H-8 & R-9) M. S . TO S . G . AUX . F .W. PUMP TURB. 2 11/20/74 413074 (H-7) M.S. TO S.G. AUX. F.W. PUMP TURB. 0 1/13/74 413075 (H-6) M.S. TO S.G. AUX, F.W. PUMP TURB. 1 11/26/74 413076 (H-1 & R-1) M.S. TO S.G. AUX, F.W. PUMP TURB. 2 4/28/75 413077 (H-2 & R-2) M.S. TO S.G. AUX. F.W. PUMP TURB. 2 4/23/76 413078 (H-3 & R-12) M.S. TO S.G. AUX. F.W. PUMP TURB. 1 4/23/75 413079 (H-4 & R-3) M.S. TO S.G. AUX. F.W. PUMP TURB. 2 11/19/74 413080 (H-5) M.S. TO S.G. AUX. F.W. PUMP TURB. 1 9/26/74 413081 (R-4) M. S . TO S .G . AUX. F .W. PUMP TURB. 2 5/20/75 413082 (R-5) M. S . TO S . G . AUX . F .W. PUMP TURB. 0 2/5/74 413083 (H-6) M.S. TO S.G. AUX. F.W. PUMP TURB. 2 11/19/74 41.3084 (H-7) M.S. TO S.G. AUX. F.W. PUMP TURB. 1 5/26/74 413085 (H-8 & R-7) M. S . TO S . G . AUX . F . W. PUMP TURB. 1 1/15/75 413103 (M-2 & R-4) M. S . TO S . G . AUX . F . W. PUMP TURB. 0 7/12/74 413104 (R-5) M.S. TO S.G. AUX. F.W. PUMP TURB. 0 7/12/74 413105 (R-3) M.S. TO S.G. AUX. F.W. PUMP TURB. 0 7/16/74 TJ,)) Gj M

SHEET 5 of 6 REV. O PROJECT: MILI. STONE UNIT 2 JOB 11867-014 SYSTEM: MAIN STEAM PIPE SUPPORT DRAWINGS IDENTIFICATION NO. TITLE REVISIOS DATE 413132 (H-5, R-7, R-81 M.S. TO S.G. AUX. F.W. PUMP TURB. 4 5/2/75 413135 (R-0) M.S. TO S.G. AUX. F.W. PUMP TURB. I 11/19/74 413137 (H-10) M.S. TO S.G. AUX. F.W. PUMP TURB. 1 1/30/75 413138 (H-9 & R-9) M.S. TO S.G. AUX, F.W. PUMP TURB. 2 3/7/75 413139 (R-10 & R-11) M.S. TO S . G . AUX . F .'4 PUMP TURB. 0 7/29/74 471210 (R-8) M.S. TO S.G. AUX F.W. PUMP TURB. I 3/25/75 31201 (H-1) MAIN S TEAM FROM S . G. #1 TO ISOLATION VALVE 4 8/22/76 31211 (H-2) MAIN STEAM FROM S.G. #1 TO ISOLATION VALVE 1 3/30/73 31212 (H-1) MAIN STEAM FROM S.G. #1 TO ISOLATION VALVE 11/13/74 31216 (R-2) MAIN STEAM FROM S.G. #1 TO ISOLATION VALVE 4 3/23/75 312017 (R-1) MAIN STEAM FROM S.G. #1 TO ISOLATION VALVE 2 12/26/74 312019 (R-3) MAIN STEAM FROM S.G. #1 TO IS01ATION VALVE 4 513026 (H-3, R-6) MAIN STEAM TO AUX. F.W. PUMP H-21 0 74 513027 (H-4, R-7) MAIN STEAM TO AUX. F.W. PUMP H-21 0 /17/74 513028 (R-8) MAIN STEAM TO AUX. F.W. PUMP H-21 0 10/15/74 31209 (H-2) MAI?1 S TEAM TO I. VALVE S .G. #2 0 3/30/73 31215 (R-2) MAIN S TEAM TO I . VALVE S . G . #2 5 4/16/73 312018 (R-1) MAIN STEAM TO I. VALVE S .G. #2 2 12/24/74 T.i31l W i

SHEET 6 of 6 REV. O PROJECT:

MILLSTONE UNIT 2 - JOB 11867-014 SYSTEM: MAIN STEAM PIPE SUPPORT DRAWINGS IDENTIFICATION NO. TIT LI REVISION DATE 513032 (R-30) MAIN STEAM PUMP TO CONDENSERS 1 5/8/75 8A & 8B CONTROL VALVE 490001 (R-35) MAIN STEAM PIPING IO TURBINE 3 5/8/75 490002 (R-36) MAIN STEAM PIPING TO TURBINE 3 5/8/75 490003 (R-33) MAIN STEAM PIPING TO TURBINE 9 6/11/75 FSK-M-02-029H PIPE SUPPORT DETAILS

• FSK-M-02-096H PIPE SUPPORT DETAILS

• FSK-M-02-027H PIPE SUPPORT DETAILS

• FSK-M-02-025H PIPE SUPPORT DETAILS

• FSK-M-02-097H PIPE SUPPORT DETAILS

• FSK-M-02-026H PIPE SUPPORT DETAILS

• FSK-M-02-028H PIPE SUPPORT DETAILS

• FSK-M-02-021H PIPE SUPPORT DETAILS

• FSK-M-02-007H PIPE SUPPORT DETAILS

• FSK-M-02-031H PIPE SUPPORT DETAILS

• FSK-M-02-030H PIPE SUPPORT DETAILS

• FSK-M-02-022H PIPE SUPPORT DETAILS

• FSK-M-02-024H PIPE SUPPORT DETAILS

• 3,31046

• NOTE: Refer to specific detail for revision number.

SHEET 1 of 4 REV. O PROJECT: MILLSTONE UNIT 2 SYSTEM: MAIN STEA*!

VA LVE DP1.k'INg VENDOR IDENTIFICATIO:; NO. TITLE VENDOE DIEAWd(, /EV. / p A TE VELAN 2-MS-191B 1/2" GLOBE P1 - 063 3 -N- 11 E VELAN 2-MS-16B 1/2"CLOBE P1-0633-N-11 E VELAN 2-MS-12B 2" GLOBE P1-0633-N-11 E VELAN 2-MS-11B 1" GLOBE P1-0633-N-11 E VELAN 2-MS - 191A 1/2" GLOBE P1-0633-N-11 E VELAN 2-MS-16A 1/2: GLOBE P1-0633-N-11 E VELAN 2-MS-220A 2" GLOBE P1-0633-N-11 E VELAN 2-MS-220B 2" GL0 tie P1-0633-N-11 E VELAN 2-MS-12A 2" GLOBE P1-0633-N-11 E VELAN 2 -MS - 11A 1" GLOBE P1-0633-N-11 E VELAN 2-MS-3A 12" GATE P2-0634-N-11 D VELAN 2-MS-3B 12" GATE P2-0634-N-11 D VELAN 2-MS-201 4" GATE MOV P2-0634-N-18 C VELAN 2-MS-202 4" GATE MOV P2-0634-N-18 C VELAN 2-MS-65A 3" GLOBE MOV P2-0634-N-26 A VEIAN 2-MS-65B 3" GLOBE MOV P2-0634-N-26 A CRANE 2-MS-4A 4" CIECK PB-150563 NA CRANE 2-MS-4B 4" CIECK PB-150363 NA COPES-VUILAN 2-MS-190A 8" GLOBE B-147060 7 COPES-VULCAN 2-MS-190B 8" GLOBE 031',').'} ~ B-147060 7

SLEET 2 of 4 REV. 0 MILLSTONE UNIT 2 PROJECT:

SYSTEM. MAIN STEAM VALVE DRAWINGS VENDOR IDENTIFICATION NO. TITLE wwtot. m sg gEt ,' M rc ATWOOD &

MORRILL 2 -FS - 64 A 34" CIECK (ISO.) 21241-11 7 ATWOOD &

MORRILL 2 -MS - 64 B 34" CIECK (ISO. ) 21241-11 7 AWOOD &

MORRILL 2-MS-1A 34" CIECK 21252-11 5 A WOOD &

MORRILL 2-MS-1B 34" CIECK 21252-11 5 DRESSER 2-MS-239 6" MSRV CP-1760 NA DRESSER 2-MS-240 6" MSRV C P- 1760 NA DRESSER 2-US-241 6" MSRV CP-1760 NA DRESSER 2-MS-242 6" MSRV CP-1760 NA DRESSER 2 -FG - 243 6" FS RV CP-1760 NA DRESSER 2-MS-244 6" MSRV CP-1760 NA DRESSER 2-MS-245 6" MSRV CP-1760 NA DRESSER 2-MS-246 6" MSRV CP-1760 NA DRESSER 2-MS-247 6" MSRV CP-1760 L\

DRESSER 2-MS-248 6" MSRV CP-1760 NA DRESSER 2-MS-249 6" MSRV CP-1760 NA DRESSER 2-MS-250 6" MSRV C P- 1760 NA DRESSER 2-MS-251 6" MSRV CP-1760 NA DRESSER 2-MS-252 6" MSRV on. g s a CP-1760 NA v d _ .

• tu DRESSER 2-MS-253 6" MSRV CP-1760 NA 2-MS-254 6" MSRV CP-1760 NA DRESSER

SHEET 3 of 4 REV. O PR OJEf'T : MILLSIONE UNIT 2 ,

~

SYSTEM: MAIN STEAM VALVE DRAWINGS VENDOR 1DENTIFICATION NO. T ITLE VENCct. ACAwd4 REV. / PA TE 2-MS-147C 1" GLOBE l

2-MS-147B 1" GIDBE 2-MS-148B 1-1/2" GIDBE 2-MS-149A 3" GLOBE 2-MS-145A 3" GIDBE 2-MS-148A 1-1/2" GLOBE 2-MS-147A 1" GIDBE 2-MS-117A 1" GLOBE 2-MS-117B 3" GIDBE 2-MS-13B 10" GATE 2-MS-13A 10" GATE 2-MS-145 B 3" GIDBE 2-MS-147D 1" GLOBE 2-MS-149B 3" GLOBE 2-MS-219 1" CONTROL VALVE 2-MS-218 1" CONTROL VALVE 2-MS -146 B 2-1/2" CONTROL VALVE 2-MS -146C 2-1/2" CONTROL VALVE 2-MS -146 A 2-1/2" CONTROL VALVE 2-MS -381B 1" CONTROL VALVE 2-MS-60A 24" CONTROL VALVE .

,g.q e w w ed a later dat

SHEET 4 of 4 REV. O PROJECT: MILLSTONE UNIT 2 SYSTEM: MAIN STEAM VA L'.'E DPX.?INCS VENDOR IDENTIFICATI05 NO. TITLE bbot. POvid;, grt / parc

• 24" CONTROL VALVE *

• 2-MS-60B

• 2-MS-600 24" CONTROL VALVE

• 2-MS-60D 24" CONTROL VALVE * *

• 2-MS-61A 24" CONTROL VALVE * *

• 2-MS-61B 24" CONTROL VALVE * *

• 2-MS-61C 24" CONTROL VALVE * *

• 2-MS-61D 24" CONTROL GLVE *

• S3 LoliO

• These drawings will be supplied at a later date.

e SHEET 1 of 2 REV. O PROJECT 7 MILLSTONE UNIT 2 SY STE MAIN STEAM FIDOR AND WALL PENETRATION DRAWINGS IDENFIFICATIOS NO. T I TLE REVISION DATE 25203-11163 PENETRATION SCHEDULE O 7/76 25203-20040 CONTAINMENT PENETRATION PIPII'G DETAILS 0 1/20/76 25203-22000 CLOSURE DETAILS FOR PIPING PENETRATIONS THRU WALLS & FLOORS 0 2/5/76 25203-22043 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 6, 7 & 10 ELEV. 45'-6" 0 2/5/76 25203-22044 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 6 & 10 ELEV. 25'-6" 0 2/5/76 25203-22045 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 6 & 10 E LEV . S'-0" 0 2/5/76 25203-22046 CLOSURE REQUIREMENTS F0F iPING PENETRATIONS AREA NO. 6 ELEV. 14'-6" 0 2/5/76

.25203-22049 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 6, 7 & 10 ELEV. 25'-6" 0 2/5/76 25203-22050 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREA 6 ELEV. 25'-6" 0 2/5/76 25203-22051 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 7 ELEV. S'-0" 0 2/5/76

• 25203-22052 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREA 6 ELEV. S'-0" 0 2/5/76 25203-22053 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 6, 7 & 10 ELEV. 45'-6" 0 2/5/76 n y .1 - ..,

SHEET 2 of 2 REV. O PROJECT: MILLSTONE UNIT 2

• MAIN STEAM SYSTEM:

PIPING IS0 METRICS AND/OR DRAWINGS IDENTIFICATION NO. TITLE REVISION DATE 25203-22054 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 7 & 10 ELEV. 25'-6" 0 2/5/76 25203-22055 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 7 & 10 ELEV. S'-0" 0 2/5/76 25203-22056 CLOSURE REQUIREMEhTS FOR PIPING PENETRATIONS AREAS 7 & 10 ELEV. 14'-6" 0 2/5/76 25203-22060 CLOSURE REQUIREMENTS FOR PIPING PENETRATION 3 AREAS 6 ELEV. S'-0" 0 2/5/76 25203-22063 CLOSURE REQUIREMENTS FOR PIPING PEN 2TRATIONS AREAS 8 ELEV. 14'-6" 0 2/5/76 25203-22066 CLOSURE REQUIREMENTS FOR PIPING PENu' RATIONS AREAS 6 ELEV, S'-0" 0 2/5/76 25203-22067 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 6, 7 & 10 ELEV. 5'-0" 0 2/5/76 25203-22070 CLOSURE REQUIREMEhTS FOR PIPING PENETRATIONS AREAS 9 ELEV. 14'-6" 0 2/5/76 25203-22073 CLOSURE REQUIREMENTS FOR PIPING PENETRATIONS AREAS 5 & 7 ELEV. 14'-6" 0 2/5/76 25203-22098 CLOSURE REQUIREMENTS FOR PAIN STEAM PIPING PENETRATIONS 0 2/5/76 25203-22101 CLOSURE REQUIREMENTS FOR STEAM CEN. FEEDWATER PIPINC PENETRATIONS 0 2/5/76 S 31','h'i.'2

• M .A. ..)

SHEET 1 of 3 REV. O PROJECT: MILLSTONE UNIT 2 - JOB 11867-014 SYSTEM: MAIN STEAM PIPING IS0 METRICS AND/OR DRAWINGS IDENTIFICATION NO. TITLE REVISION DATE SK-M-939 M.S. FROM DUMP VALVE TO ATM. A 5/7/74 SK-M-317 M. S . S T. TEN. TO TURBINE (IS O. ) 21 5/12/75 SK-M-462 M.S. TO S.G. AUX. F.W. PUMP TURB(ISO) 4 4/3/75 SK-M-463 M.S..TO S.G. AUX. F.W. PUMP TURB(ISO) 3 1/5/74 SK-M-940 M.S . FROM DUMP VALVE TO ATM. 2 5/7/74 SK-M-464 M.S. FROM DUMP VALVE TO ATM. 4 5/12/75 SK-M-685 M.S. FRO'M DUMP VALVE TO AIM. 3 10/1/74 25203-20016 AREA 2 PIPING PLAN @ EL O'-0" 0 1/10/76 25203-20096 MAIN STEAM DUMP TO ATMOS. PIPING 0 1/20/76 25203-20615 AREA 2 PIPING SECTION V-V 1 12/11/78 25203-20035 AREA 5 PIPING PLAN @ EL. (-) 22'-6" 0 1/20/76 25203-20036 AREA 5 PIPING PIAN @ EL. (-) 3'-6" 0 1/20/76 25203-20037 AREA 5 PIPING PLAN @ EL. 14'-6" 0 1/20/76 25203-20038 AREA 5 PIPING PIAN @ EL. 38'-6" 0 1/20/76 25203-20039 AREA 5 PIPING SECTION "A-A" & "B-B" 0 1/20/76 25203-20103 M.S. PIPING SECT. AUX. BLDG, 0 1/20/76 25203-20098 M.S. PIPING PIAN CONTN. & AUX. BLDG. 0 1/20/76 25203-20099 M.S. PIPING PLAN TURBINE BLDG. 0 1/20/76 FSK-M-02-022 STEAM GEN. B. DOWN 8 8/21/74 FsK-M-02-031 B. DOWN SAMPLING LINE 7 8/21/74 FSK-M-02-030 B. DOWN SAMPLING LINE [A')),(}ljl} 6 5/22/75

SIIEET 2 of 3 REV. O PROJE C'T : MI..LSTONE UNIT 2 - JOB 11867-014 SYSTEM: MAIN STEAM PIPING IS0NTRICS AND/OR DRAWI';GS IDENTIFICATION NO. T IT LE REVISION DA E FSK-M-02-097 S . GENERATOR B, Doh'N TO ISOLATION VA 3 1/24/75 FSK-M-02-029 B. DOb7; SAMPLING LI'iE 11 7/1/75 FSK-M-02-021 B. DOW SAMPLING LINE 5 6/28/74 FSK-M-02-023 S TEAM CENERATOR B. D0'a7; TO I . V . 10 2/24/75 FSK-M-02-024 STFAM GENERATOR B. DOWrI TO I . V . 3 7/10/73 FSK-M-02 025 S TEAM CENERATOR B. DOWN TO I . V. 5 5/21/74 FSK-M-02-026 STEAM GENERATOR B. D0'JN TO I.V. 6 8/21/74 FSK-M-02-027 STEAM GENERATOR B. Dob; TO I . V. 9/4/75 FSK-M-02-028 BLOW-DOWN JAMPLING LINE 4 9/23/74

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FSK-M-02-096 STEAM GENERATOR B. D0'JN TO I . V. 3 1/23/75 FSK-M-02-07 STE *'t GENERATOR B . DOb7; TO I.V. 3 5/21/74 FSK-M-02-08 STEAM ( :'ERATOP B. DOWN TO I.V. 3 5/21/74 FSK-M-02-010 STM. GEN BLOWDOWN TO QUENCH TK 5 4/11/75 FSK-M-02-015 STM. GEN. BLOWDOWN TO QUENCH TK. 5 4/11/75 FSK-M-02-016 SDL GEN. BLOWDOWN TO QUENCll TK. 9 7/8/75 SK-M-1016 Snt CEN. BLobTOWN DOWNSTREAM OF ISO. VALVES 4 7/8/75 SK-M-1015 S TM . GEN. BLOWDOWN DOWNSTREAM OF ISO VALVES 6 8/22/75 FSK-M-02-007H STM. GEN. BLOWDOWN TO ISOLA. VALVES 4 8/7/75 FSK-M-02-008H STM. GEN BLOWDOW'i TO ISOLA. VALVES 2 5/19/75 n n .* y-a t) .r {..r r3'n.t

SHEET 3 of 3 REV. O PROJECT: MILLSTONE UNIT 2 - JOB 118 57-014 SYSTEM: MAIN STEAM PIPING IS0 METRICS AND/OR DRAWINGS (USE FOR SUPPORT DETAILS PER WO-30) _

IDENTIFICATION NO. TIT LE REVISION DATE FSK-M-02-021H STM GEN. BLOWDOWN TO ISOIA. VALVES 2 5/6/75 FSK-M-02-022H STM. GEN. BLOWDOWN TO ISOIA. VALVES 5 5/6/75 FSK-M-02-024H STM. GEN BLOWDOWN TO ISOLA. VALVES 5 5/28/75 FSK-M-02-025H STM. GEN. BLOWDOWN TO ISOLA. VALVES 4 5/28/75 FSK-M-02-026H JTM. GEN. BLOWDOWN TO ISOLA. VALVES 3 5/25/75 FSK-M-02-027H STM. GEN. BLOWDOWN TO ISOIA. VALVES 4 6/9/75 FSK-M-02-028h BLOWDOWN SAMPLING LINE 5 o/8/75 FSK-M-02-029H BLOWDOWN SAMPLING LINE 3 8/7/75 FSK-M-02-030H BLOWDOWN SAMPLING LINE 2 2/12/75 FSK-M-02'031H BLOWDOWN SAMPLING LINE 6 6/3/75 FSK-M-02-096H STM. GEN. BLOWDOWN TO ISOLA. VALVES 1 5/10/75 FSK-M-02-047H STM. GEN. BLOWDOWN TO ISOLA. VALVES 1 6/9/75

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