Docket 50-320

Hr. John J. Barton Acting Director, THI-2 GPU Nuclear Corporation P.O. Sox 480 Middletown, PA 17057

Dear Hr. Barton:

DISTRIBUTION: .,..- Docket so-32o

NRC PDR Local PDR TERA TMIPO HQ r/f TMI Stte r/f Ularrett RBellamy Afasano RConte Attorney, ELD IE ACRS BSnyder RWeller

SUbject: Recovery Operations Plan Change No. 12 (Reactor Coolant Systea Chemistry Specifications Change)

Reference: Letter from J. Barton to B. Snyder, same subject, dated April 15, 1982, 4400-82-L-0054

We have reviewed the referenced letter which transmits your Recovery Oper~ttons Plan Change Request Humber 14 for reactor coolant systea (RCS) chemistry specifications. This change request deletes the dissolved oxygen and dissolved hydrogen specifications, and establishes a RCS chloride specification of 5 ppm 1n the Recovery Operations Plan (ROP).

The staff's evaluation of these changes, wtth the supporting information on RCS sulphur analysts and the metallurgical analysts on materials used tn the submerged dem1neral1zer system, has concluded that no significant increase tn RCS system corrosion should occur, nor loss of system integrity. We therefore, approve your change request and are enclosing the A~ended sections (ROP Change Ho. 12) to the Plan.

Thts ROP change is required both for the timely processing of the reactor coolant system water through the submerged demineralizer systea and the partial RCS drain down for the remote visual reactor examination through a control rod drive mechanism. We understand your staff is taking precautionary steps (i.e., prior flushing of SDS and reactor coolant bleed tanks) to insure that present RCS chloride concentration (approxiMately 0.8 ppm Cl) is not intentionally raised to the 5 ppn ~xi~ 11~it and that processed makeup water (returned to the RCS via RCBT •A•) will be 1nerted with nitrogen to insure dissolved oxygen is as low as practicable during processing. These are beneficial precautionary steps. Additionally. we suggest a contingency plan be considered to remove chlorides from the RCS or makeup water in the remote case where significant chlorides might leach from previously contaminated system components.

. .. . . . .. . ...... ,. . . . . . . . . . . . . . . . . . . . . ........... .. .................. .................. .. .. .. ... .. .. .. .. ............. .. ........ . OAU .

• • • .. • "'. • • • • • .. • • • • • •• • • •• •• •• ••• • • •• • • •••• • •• ••• ••• •• t • • •••• • • • •••• •• • • • •• ••• ••• t . .. . . ... ... ...... . . .. ... ..... . ... . . . . .. .. . ... .

N"Ac-r"O"'il ~,~ l,aciO:wol ,..;.c.;o;..-o--·--·- · E R py ·-

Hr. John J. Barton -2-

The deletion of the RCS dissolved hydrogen (for~erly maintained above 5 ce/Kg) as an oxygen scavenger is consistent with the dissolved OxYgen change. Currently the RCS dissolved H2 1s 9 cc/Kg. While the staff is approving deletion of the dissolved H. from the ROP, prior to actual RCS depressurization/reactor ve~sel opening, the RCS dissolved ~2 should, by procedure, be lowered to less then 5 cc/Kg to insure no comoust1blc gas ~:~btures fo1""1D.

Enclosures: Page No. 4.4-1 and B 3/4 4-1

cc: See Service Oistr1but1on List

take H. Barrett Deputy Prog~ Director TMI Program Office

O,IC£. ·~•" •• .!~~.~~· •• • "". ,~ .. .,, • "' • ... ..... • • •., • "" ......... ••• .. • • • ""'"'"'"" • • "' '" • """'' • ..... .. SUitlfAioi[. • ..... ~ • • • • ! . . ~ ..... ~.~~t .~.tw. ....... ··~·· ·••••• ·•·••••••••• •• ............... ...... ''""""'''' ''''''' ................... ,

DATI: • • ~!!.!.!.~~ ''"" • ~1.\Y.~? ........ , .. ~l.i'J.:I.~.~ ........ .......................................... '"'"''""""' "' .............. , .... • "'"e f'OIIIM 318 110 80 ' NltCM oz•o OFFICIAL RECORD COPY

'·4 ~~CTOR COOLANT SYSTEM ·.

REACTOR COOLANT LOOPS

4.4.1 Verify that surveillance of the Reactor Coolant System ia being performed in accordance with procedures approved pursuant to Technical Specification 6.8.2.

SAFETY VALVES

4.4.3 Not applicable.

4.4.9 PRESSURF./T~~ERATURE LIMITS

r~C!OR COOLANT SYSTEM

4.4.9.1.1 The Reactor Coolant Sytem pressure and te=perature shall be determined to be within the limits at least once per 12 hours.

4.4.9.1.2 Deleted.

.. 4.4.9.1.4 The pH of the reactor coolant shall be determined tc be greater than or equal to 7.5 at least once per 7 _days.

4.4.9 . 1.4 The Chloride concentration in the reactor coolant shall ~e I ' determined to be less than or equal to 5 ppm at least once per 7 days.

• •

820519 C>371

THREE MILE ISLAHO - U~ I T 2 4.4-1 Change No. 12

j

•

·-!!! ( . . : ~ ' . :.. . !

'.

. .

•

.. 3/~.· REACTOR COOL~NT SYSTEM

BAS!S

•

3/4 ••• 1 RtiCTOR· COOLANT LOOPS

Several alternative ~ethods are available for re~oval of reactor ~c~ heat. These ~ethods include use of the ·Hini Decay Heat ~emova: Systea. the NLoss to Ambient" cooling ~ode, and operation of the Reactor Coolant S1stea fn the natural c~rculation ~ode . with heat rejection vfa the long term •a~ steaa generator cooling ~ode. Any ~ne of thele cooling methods provides adequate cooling of the reactor and each ~ethod is available for decay heat reeoval. Procedures have been prepared and approved for use of these various cooling

· methods.

· 3/4 . 4.3 SAFETY VAlVES .·

The pressurizer code safety valves operate to prevent the RCS from being pressurized above its Safety li~it of 2750 psig. Each safety valve .11 designed to relieve 348,072 lbs per hour of saturated steam ~t the valve's setPoint.

3/4 ••• 9 PRESSURE/TEMPERATURE. LJHJT .

The RCS pres.sure and temperature wi1 1 be controlled in acc·ordance vith approved procedures to prevent a nonductile failure of the RCS whili at the same time permitting the RCS pressure to be m~intained at a su!ficfently high value to pe~it oper•tion of the reactor coolant pumps.

Reactor coolant chemistr,y surveillance requirements are included in the Recover.y Operati~ns Plan. These requirements provide as~urance that localized ' co: rosion or pitting in crevice areas, which could tend ~o promote stress corroiion cracking in heat affected zones of welds fn stainless steel piping or comDonents. will not occur.

•.

-. ~- ·--- ROPC 112

• L. (In~. Acting Mlnaver Site O~tr&!1ons TKI·2

PU N~cltar Corporation .0. loa 410 tddlttown, PA 17057

r. J.t. Larson, Supervisor I Unit 2 Lfctnsi.ng

PU Nuclear Corporation .o. loa 480 tdd\ttown, PA 17057

r. J. l . UbtrNn, Esquire erhck, hruh, Libtl'llln 6 lroadway •~ York, NY 10004

r. G.,. Trowbridge, tsquira ha~, Pitt.an, Potts l Trowbridge 800 M Street, M.W. ashingtcn, DC 20036

• Walter H. Jordan 11 w. ~ttr Drht k Rfdgt, TN 37830

• Linda w. Little 000 Hermitage Drive ltigh, Ht 27612

rin W. Carter ststant Attorney General

OS taecut1vt Houst .o. loa 2357 arrhburg, PA 17120

onorable Kark Cohen 12 £·3 Katn CApital luUd1ng arrisburg, PA 17120

lyn Wttss, £squirt heldon, Ka~n, Rofs~an l Weist 725 ·1 Street. N.W. , Suitt 506 ashington, Dt 20006

r. Sttvtn c. Sholly 04 s. Market Street chanicsburg, PA 17055

r. ThOIIIU Gervsky • ureau of bdiat1on Protection .0. I01t 2063 arrtsburg, PA 17120

r . Karvtn 1. Ltwts 504 lradford Terrace Mhdel ph1a , PA UtU

• .lint Let D. 3, loa 3521

tttrs, PA l731t

alter w. Cohen, Consumer Advocate partNant of Justice

trawbtrry Square, 14th noor arrfsburg, PA 17127

• Karjorfe H. Aa~dt • D. IS oatt svill e, PA 19320

.1 . laren Sheldon . helcon, Harmon, Rot s~•~ l wetss 725 J Street, H.W. , Suitt 505 ashtnston, DC 20006

Tl'!l·Z 'S[RVJ tr 1.1 s:r----;--"-.......,.--,-c-..----..,....-::------..,.---::-~-;-:,-....,..,-,---,--,­

[lrl I . Hoft=an Dauphin County Co~issioner Dauphin County Courthouse Front and ~~rket Street Harrisburg, PA 17101

Government Publications Section Statt of Library of Pennsylvanta lolt 1601 ~ducatton Building Harrhburg: PA 17127

Dr. £dwa rd D. Swartz Board of Supervhors · Londonderry Township RFD 11 Gtyers Church Road Hf ddlt~wn, PA 17057

u.s. EnvironMntal Protection Agenc1 Rtgion JJI Offfct ATTN: US CDordtnator Curth luildint (Sbth noor) 6th and Walnut Streets

· PhUadelphfa, · PA UlOI

Dauphin County Offtct t.ergency Preparedneu

Court House, Roo• 8 Front and H&rket Streets Harrhburg, PA 17101

Deparuaent of £nviroMitntal Rtsourcu ATTN: Director, Office of

Rldiologtcal Htalth P.O. lox 2063 Harrisburg, PA 17105

Governor' s Offtct of State Planning and Dtvtloptlltnt

ATTH: Coordinator, Pennsylvania Cluringhouu ·r.o. lox llZl

H&rrhburg, PA 17120

Mrs. Rhodi D. Carr 1402 Karent Orhe Harrisburg, PA 1710i

Kr. Richard Roberts The Patriot 812 H&rktt Street

. Harrhburg, PA 17105

Hr. Robtrt •• aorsaa lab cock I 11fl COl Hucltar Power Genera Uon Of vhion Suitt 420, 7735 Old Georgetown Road Bethesda, MD 20014 •

Hs. ~dtth A. Ebrsey 1315 Walnut Street Suitt 1632 Ph11adelphfa , PA 1t107

U.S. Dtpartlllent of Energy P. O. lox aa Hfddlttown, PA 17057-0311

Robert L. Knupp, Esquire Assistant Soltct~r Knupp and Andrtws P.O. lox P 407 H. F~nt Street Harri sburg, PA . 17108

Chftf, Docketing l Service Branch U.S. Hucl ea r Re r~t atory Co~1s s fon ATtN: Secretary · · ~ - L. 4' __ _ - - - - - ···

John £. Hlnnfch, Chairperson Dauph!n Co. Board of Cc~tsstontrs Dauphin County Courthouse Front and H&rktt Streets Harrisburg, PA \7101

Hr. 11il11aa A. LDchsttt tU £. Aaron Drht Statt College, PA 16101

Robert Q. Pollard • thesapeat Energy Alliance

60t Hontpelttr Street laltfiDrt, HD 21211·

Chauncey ltpford ~dtth H. ~hnsrud Envfronacntal Coalition on Nuclear Power 4l3 Orlando Avenue State Colltgt, PA 16801

Ms. Frieda 8erryhfl1, Chairperson Coalition for Nuclear Power Plant

Poltpontlllnt . 26\ 0 'rtndon Dr1 Yl . Wtlatngton, DE \MOl

Holly s. ltct Antf-Nucltar Group Representing York 245 11. Philadelphia Street York, PA 17404

John Levin Esqufrt Pennsylvania Public Ut1\1tits Conlfssioa P.O. lox 3255

. Harrhburg, PA 17120

~rdan D. Cunningha•, tsqufre Fox, ,arr and Cunninghu 2320 ~. Second Strttt Harrhburg, PA 17lt0

Ivan 11. S.fth. Esqu~t Atoaic Safety and Licensing Joard u.s. Nuclear Regule~r.r Coasissfon Washington, « 20555 . Ato~tc Safety and Licensing loard Pantl u.s. Nuclear Rtgula~ry ~1ssfon Washington, DC 20555

Atoaic Safety and Ucensfng ~ptal Pantl u.s. Nuclear Regulator¥ to.atssfon

·washington, DC 20555

Vfrgtn1a Southard, Chafnaan Cft~zens for a Saft Env1ro~nt 264 Walton Street Lnoynt, PA 17043

John F. Wolf, Esq., Cbahut\ Adatnfstrativt Judgt

3~0t Shepherd Street · Chevy Chase, HD 20015

Dr. Oscar H. Parfs, ~ln1stratfvt ~dfl . .

Ato111fc Safety and Lfctnsfng loard Pantl u.s . Nuclear Regulatory to..lssion Wuhfngton, DC 20555

Kr. Fredtrfc\ J. Shon, Adainlst ratfve Judgt

Atomi c Safety and Licensing loard. Pant\ U.S. Nuclear Rtgul atory Co~issfon ~a~hington, DC 20555