ML20205C815

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Monthly Operating Repts for Jul 1986
ML20205C815
Person / Time
Site: Dresden  
Issue date: 07/31/1986
From: Maxwell D
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20205C813 List:
References
NUDOCS 8608130327
Download: ML20205C815 (21)
v • d • e


Text

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OPERATING DATA REPORT DOCKET NO. 050-237 DATE August 1, 1986 COMPLETED BY D. C. Maxwell TELEPHONE 815/N2-2920 OPERATING STATUS NOTES 1.

Unit Name:

Dresden II 2.

Reporting Period:

July, 1986 3

Licensed Thermal Power (MWt):

2 527 4.

Nameplate Rating (Gross MWe):

828 5

Design Electrical Rating (Net MWe):

794 6.

Maximum Dependable Capacity (Gross MWe):

812 7

Maximum Dependable Capacity (Net MWe):

772 3.

If Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give i

Reasons:

l N/A 9

Power Level to Which Restricted, if Any (Net MWe): N/A 10.

Reasons For Restrictions, If Any: N/A This Month Yr-to-Date Cumulat Ne 11.

Hours in Reporting Period 744 5,087 142,151 12.

Number of Hours Reactor Was Critical 701.5

't 290.1 107,977.6 13 Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator On-Line 683.0 3.981.3 102,965.9 15 Unit Reserve Shutdown Hours 0

0 0

16.

Gross Thermal Energy Generated (MWH) 1.583.834 9.295.771 210,929.410 17 Gross Electrical Energy Generated (MWH) 504.650 3.013.678 67,513,441 18.

Net Electrical Energy Generated (MWH) 480.972 2.869.382 63.805.496 19 Unit Service Factor 91.8 78.3 72.4 20.

Unit Availability Factor 91.8 78.3 72.4 21.

Unit Capacity Factor (Using MDC Net) 83.7 73.1 58.1 22.

Unit Capacity Factor (Using DER Net) 81.4 71.0 56.5 23 Unit Forced Outage Rate 8.2 21.7 12.7 24.

Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Refueling outage scheduled for December, 1986 through February, 1987.

25.

If Shut Down At End Of Report Period, Estimated Date of Startup:

N/A

l OPERATING DATA REPORT DOCKET NO. 050-249 DATE August 1, 1986 COMPLETED BY D. C. Abymell TELEPHONE 815/942-2920 OPERATitlG STATUS NOTES 1.

Unit Name: Dresden III R' porting Period:

July, 1986 2.

e 3

Licensed Thermal Power (MWt):

2 527 4.

Nameplate Rating (Gross MWe):

R9A 5

Design Electrical Rating (Net"MWe): 794 6.

Maximum Dependable Capacity (Gross MWe): 91 2 7

Maximum Dependable Capacity (Net MWe):

/73 8.

If Changes Occur in Capacity Ratings (ltems 3 Through 7) Since Last Report, Give Reasons:

N/A 9

Power Level to Which Restricted, if Any (Net MWe): N/A 10.

Reasons For Restrictions, if Any: N/A This Month Yr-to-Date Cumulative 11.

Hours in Reporting Period 744 5,087 131,736 12.

Number of Hours Reactor Was Critical 0

0 96,596.7 13 Reactor Reserve Shutdown Hours 0

0 0

14.

Hours Generator On-Line 0

0 89,793.3 15 Unit Reserve Shutdown Hours 0

0 0

16.

Gross Thermal Energy Generated (MWH) 0 0

181,772,636 l

17 Gross Electrical Energy Generated (MWH) 0 0

58,839,233 18.

Net Electrical Energy Generated.(MWH)

-5,590

-36,276 55,690,018 19 Unit Service Factor 0

0 68.2 20.

Unit Availability Factor 0

0 68.2 21.

Unit Capacity Factor (Using MDC Net) 0 0

54.7 22.

Unit Capacity Factor (Using DER Net) 0 0

53.2 23 Unit Forced Outage Rate 0

0 12.4 24.

Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

In 9th refueling /RPR outage.

25 If Shut Down At End Of Report Period, Estimated Date of Startup: August 8, 1986 l

l

COMMONWEALTH EDISON COMPANY DRESDEN STATION MAXIMUM DAILY LOAD i

t MONTH OF July. 1986 HOUR MAXIMUM DAILY LOAD DAY ENDING KW 1

1100 811,700

_.?.

2400 812,400 3

0100 812,300 4

1300 814,700 5

1000 812,300 6

1200 800,800 7

1800 803,100 8

0100 799,500 I

9 1200 802,300 10

'1100 800,800 11 2400 804,400 12 0100 775,000 13 0

14 2400 486,900 15 2300 594,100 16 2400 759,000 17 1700 803,100 18 1800 802,200 19 0100 787,100 20 2200 741,100 21 2100 801,300 22 2000 787,500 23 1400 797,600 24 0900 800,000 25 0500 793,400 26 0900 789,600 27 2400 712,000 28 1800 787,800 29 0100

~777,500 30 0100 764,000 31 2400 726,000

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 030-237 UNIT II DATE August 1, 1986 COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920 MONTH July, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 784 17 757 2

777 18 755 3

684 19 748 4

774 20 622 5

760 21 728 6

754 22 656 7

768 23 762 8

767 24 757 9

766 25 789 10 677 26 717 11 723 27 563 12 39 28 755 13 0

29 725 14 106 30 646 15 430 31 610 16 654

l 1

AVERAGE DAILY UNIT POWER LEVEL i

DOCKET NO. 050-249 VillT III DATE August 1, 1986 i

COMPLETED SY D. C. Maxwell TELEPHONE 815/942-2920 MONTH July, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 0

17 0

2 0

18 0

3 0

19 0

4 0

20 0

5 0

21 0

6 0

22 0

7 0

23 0

8 0

24 0

9 25 0

0 10 0

26 0

11 0

27 0

12 0

28 0

13 0

29 0

14 0

' 30 0

15 0

31 0

16 0

DOCKET NO. 050-237 UNIT MAME 11 UNIT SHUTDOWNS AND POWER REDUCTIONS DATE August 1, 1986 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 REPORT MONTH July. 1986 METHOD OF LICENSEE CAUSE & CORRECTIVE NO.

DATE' TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)

DOWN REACTOR 3 REPORT f CODE 4 CODES PREVENT RECURRENCE 6

85-07-12 F

60:58 A

3 86-017-0 Rx scram, IC MSIV full closed (61.0) during surveillance testing, causing a pressure and high flux spike.

9 1

2 3

F:

Forced Reason:

4 Method:

Exhibit G-Instructions for S:

Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data 1

B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3--Automatic Scram Event Report (

) File 4

D-Regulatory Restriction 4-Other (Explain)

(NUREG-0161)

E-Operator Training & License Examination,

t F-Administrative i

G-Operational Error H-Other (Explain)

DOCKET iiO. 050-249' UNIT NAME Ill UNIT SHUTDOWNS AND POWER REDUCTIONS DATE August 1, 1986 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 REPORT MONTH July, 1986 METHOD OF LICENSEE CAUSE & CORRECTIVE NO.

DATE' TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)

DOWN REACTOR 3 REPORT F CODE 4 CODE 5 PREVENT RECURRENCE 6

8*-10-23 S

744:00 C

1 Off-line manually to 9th refueling / recirculation pipe

~

replacement outage.

o 1

2 3

4 F: Forced Reason:

Method:

Exhibit G-Instructions for i

S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee l

C-Refueling 3--Automatic Scram Event Report (

) File D-Regulatory Restriction 4-Other (Explain)

(NUREG-0161) i E-Operator Training & License Examination,

F-Administrative 3

G-Operational Error H-Other (Explain)

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URM0t L II 2 SAFETY RELATF M A I'4T E 4 A aC E g.,,gt 2.

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" 2-140 2-24 A,2 r,S.2 % A.

7 'v4 P ar ger4pgyt; e,f 3 P c Rr JR *4 f 9 T E ST 01-VALVLS Tu [*;itJRF

'g' CORE SPdAY WALVL5 WA 0 %,9 6')

PdOPtR OPER A TIOta PF REL LYS.'ad PR ORLE 4

,.'.s FodND jf,rOPIS 2-13PN COPRFCTIVE N/A REPLACE 0 T Hr A L A RPa MICR1 SdITCH, 4

' ISOLATION CJNDENSER HIGtt FLOW WR 055009 C ALIbH Aft 0 S ITCH PFR PROCE7URL LEFT OK y{; SWITCH LO-M

['LPRH6C-40-09 CORRfCTIVE N/A REMOVE D BROKEN BULD AND SOCKE T, INSF ATE 0 7 y.APRM 3 Wa 0540T)

NEW BULB AND VERVIED OPERATION.

X ?

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TIGHTENED SCAEw$ AND FITTI4G ANO STOPPED 2-300-117 PREVENTIVE N/A g.,CR0 ACCUM VLVS WR 053620 AIR LEAKS, CHECKED OK

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f

[MMO-2-1501-38 PREVENT!VL N/A~

- - - - -.. - - ~ ~ ~ - -

CHEC KED LIMITS AND TORQUE SWITCH PER WR 053862 PR OC EDUR E

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AT,

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302-6601

. PREVENTIVE

'N/A-

. PERFORMED QUARTE RLY IP4SPECT104 I E0tESEL GEt4ERATOR WR 05164R 2.

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>?O' fi i( D22125V 00. BATTERY CHARGER 2Af 'PRNVENTivd'.

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CIRCuff,

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. REPL ACE 0 RES!$ TOR IN HIGH VOLTAGE TRIP

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I" w*2A'125 VDC oATTEPY t

CHARGE't N EVENTIVE.

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- ADJUSTED FLOAT AND F'JU ALI ZE VOLT AGE S

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, 'i, WR 350885

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"d"_tiATT CFLLc5 PR E VElai lV E N/A,

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Ptfi CH ARGER ON AND CHARGIO TO ACCUAATE U2 24/48 DC YOP t d '

WR 04TT23 LEVEL ACCORDINt, TO THE G0ULD NANUAL sp,

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b.n i--

l. ?LI2D3-240 CdRaFCTIVt f:/ A CHANGru OUT HETFR AND PFRFORMFD

! 'yATWS LFVEL INu.

'a' WR 044745 PR r.EnuoE TO CHECK LEVLt TRA4SMITTtt 90 ANO l'au!LAT04 CALILRATIO.4 h1 ','

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NATURF Oe:

'LFR OR DOTAGE f4 A LF UNC T 104 3

L O U I P.t.N T M A I N T E *l AN Cf feU ABfit C A U*> E RESULT CORRLCTIVE ACTIO!4

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- LPRM 32-33C EGooit/ II EURRrCTIVE 4/A PlotTFD DETFLToe PLATCAU AND INSPrcygn I;

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WR 053629 PEA PR OC LDUR t., FOut40 red PRuaLEM l

MOV 202-5A CORRfCTIVE

'l/ A FOUND TORQOf SWI TCH NOT P90"E9LY WA D48654 INSTALLFD. REINSTALLFO PROPERLY A '40 LFFT OK 2 p{,'

i p: ;/.*/.

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5,3,1 2-203-30 CURRECTIVE N/A INSTALLED NEW PILOT ASSEMPLY A Nr) FLEX h.;$., ",

.. D ELECTROMATIC WR 049129 GASGET, INSTALLED NCW SEAL RING A*40 CHECKED CLEARANCES, LEFT OK g

r, ADJUSTED PACKING AND CYCLED VALVE.

LEAN UP VLV. 2-1201-1A PREVENTIVE N/A

=== - - - - - - - -

lD+

WA 053046

DJ 9.

PERFORMED PROCEDURE,LEFT OK

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3 I-- a u--- i --- ----

' ADJUSTED LIMIT SwlTCHES, LEFT 04 i U 3:5-125C12T PREVENTIVE-

,N/A

't' f.j'CQSCRAMVALVELIMITSdITCHES WR 04TT33 e v; : 0

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.:s iAO-2001-5 CORRECTIYE N/A-INSTALLE0 RINGS AND GRAFOIL PACKING AS I (03 EQUIP PUMP OISCHARGF WR D542T4 REQUESTED. LEFT OK

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. CORRECTIVE l' N/A

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REPL ACE 0 P ACKING ANO D ALL STERN AMD U-1601-200 i 4 t[l; VACUUM BREAKER

- WR 054309-RINGS. LEFT OK i

8 g...e tY 4.

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,g{p 4-y,,

' CORRf C T IVE

. N/ A. <

'A-------

INSTALLED NEW SOLEN 0!O

,W@.({ 2-f 01601-21 2, TORUS VENT VALVE

WR D'54319-

.,.N U

2 2001-5 PRE VI NT IVii h/ A '

REA0 JUSTED Titt PACKING FOLLO4FRe L6FT IN'!?/.'O EQUIPMENT I SOL AT ION

- WR O'i4689 OK U* Q.

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REPL ACE 0 SWITCH, LEFT OK

28-1401 COPdFCTIVE N/A-iCORE SPRAY PU4P WR u*>O 3 3 %

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EOU I P'9tN T MAtHTENANCF HJ M el E et CAtfSE

't% ULT CodRECTIVE ACTIO;4 INSTALLFO 40 d VALVE it L OC K A *4 U '4 f d TUor L I T S-2 -2 51-59.3 CoqqrtTtVe N/4

4. R J% t h0 TO P IPE CON" LLC Tnits., Lor i UW g'^

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INSTALLrO NI.4 VALVL 4)LdCK ANu F4fW TO lE b

'LIS-2-263-726 Con 9rCitVt N/A

.j WR 05 t hM TO PIPE CONNECTORS, LEFT 04 l

1 p'7 ' LI $-2-26 3-72 A

=

INSTALLED NFW VALVL BLOCK AND NEW CORRECTIVE N/A c,[f.,

WR 051385 TuoE TO PIPE FITTINGS, LEFT UK

- gV;., -

&W INSTALLEO NEd ACCUMULATOR W HCU tH-81 30-31 CURRECTIVE N/A i-------

%, I*' -..

WR 053P06

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c.

k f5-223-10 COR;tECTIVE

.N/A

' ~

CHANGED E-SE ALS AND INST ALLFO NF W TUDE AIR CYLINDER. LEFT OK 1C,MSIV

- WR 050502 WELDED UP BOLT PER PROCEDURE Afv0 2/3-3933-500 VALVE CORRECTivi N/A hf*

INSTALLE0 1 RING FXTRA 0F PACKING WR 050746

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l TROUBLESHOT GRJUNO PER PROC 5uuRE, LEFT V MO-2-2 301-8 PREVENTIVE:

N/A.

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l 253 VOC GROUNO WR.D50779 OK j W:d.\\,

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PRFVFNTIVE N/A-

~ - - - - - - -

110'2-220-2 VALVi 84CKSEATE0 VALVE PER PROCEDURE, LFFT OK i

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- WR 0507T9 ye qe.

INST ALLFO NFd C4dLE, M AOC HrCE SS AR Y

  • p1NJOARD MSi v G'tO'It40 Pelf VF N T I Vt N/A I

.,a WR 050905 BUTT SPLICES, LEFT OK t!

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..v!.,MOV 2 301-ts PRf Vrt.TIVL M/S REMOVEu MOIOt FR O'4 U-3 AND I N".T A LL FO IT ed/

Wd d50124 JN 0-2, REPLACED TORQUE SWITCHe LEFT OK j

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. t QulPMErlT PAI 41EN4NCr NU'Sf R CAUSE PESULT CORRECTIVF ACTION C ' flX BL UG I'4 T t:L ur.K 03dit Pes F Vi rlT IV E N/A ADJUST LO MAGra( T S Or4 DO)R F RME, LFFT OK c

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.O E '03-20 parerNiivE n/A

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Rret ALen t ini r Sar iCH. ttri OK 2

IMSIV POSITIu'd L I'4 t i SWITCH WR J5:eD2 i,

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N E 2-2301-8*

PRFVfMTIVE N/A

  1. 4 E GG ER E D M O T OR FRON 3REAKER, MOTOR

>[k.HPCIVLV WR D51746 SEING REPLACED UNDER WR $1092 b ;.,,

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Ejd5LIS-2-263-72C CORRECTIVE N/A INSTALLED NF.4 VALVE ulOCK AN0 2

  1. "M. J.

WR 051381 Coa 4NECTORS. LEFT OK 98 Z$$ '

Nhy,..

=

INSTALLED NFW VALVE t$ LOCK AND NF4 TUJF

'.1 4 LIS-2-263-720 CORRECTIVE LN/A >,

h' Q.,2 T FOR PIPE CONNECTORS, LEFT OK 5 0' 3r -

WR D51382

^~'

3

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s.

lY i. i 2" INSTALLFD NEW' VALVE BLOCK AM TUaf M LITS 2-263-59A CORRECTIVE.

N/A,

$3fv 'WR D51366 . TO PIPE CONNECTORS. LEFT OK .c, b. ,4.. 3 .,c M h.'- . 3.' ' - p p.;!. j [ b " Af d $1[' ' q* 6140-2-1201-1 PREVENTIVE ' .N/A.,' ' ADJUSTED PACKING AND TESTED VALVai OK 'D,ig,CLEAbHP VALVE , WR 053042 .n l . y '<'4 e, .3 = ,6. L a.y

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PAEVFNTIVE N/A ' APPLIEo oft TO PACKING AND PASTE TO MO-2-1301-4 VALVE STEMe CYCLED VALVEe LEFT OK 4 0.,: MISOL. COND. V ALVE .WR 053044 u.m. i gA 1 ; s [< 3.e . yr O",;p MO-2-1301-1 . PREVEt4TIVE N/A APPLIFO OIL TO P ACKit4G AN9 TESTF0 UK 1 ~ .ISOL COND VALVE Wd 0930 9 ( t 4 \\

q

$ 7', b i L,.n DRILLfD HOLIS AND INST 4LLFD JOLTS AN3 ? .." " v MA I N CO N T R04. ROJ'd PAHELS P.1F V F gi lVs PJ/ A WR 393069 BFVELFO DASHER AND NUTS. LFFT OK u' j ' 17. ,hfI t g eV j !M e? .i..,, ~. .,r-. ._-....-...~..,,....__..-.m-...._-..._.

l t -a ). --ff l OP F's0 E h*) I T. 2 .[g:j $. % A Fl.T Y RE L ATCo 't A INit a A 4C E ,4* H4104E fiF t_5 4 Op f!OT AC.C

  1. 4 a L FOPC T i p:4 L OU I P'9cN T MAINTLf1ANLc w ry Lau%

P LSUt i C04RECTIVE ACTION 2-2323-1"-LX CORRELTIVE P/a HF5LACEO ELPJW ann poJACLNT PIPINr., LEFT . g HPC I DRN. LINL WA 0535S2 OK d 6 ' *4 ' i,4-2-220-83A r.ORR F L T IVL N/A TIGHTENED AIR TANK,UNidN TO SFAL ,.d.'.' 2A MSIV SUPPLY A!4 CYLl4fER WM 0539';4 LF AK Ar,E, LEFT OK j O j lv $ 5,' i;j f-h.. .),y R.' I M- ', y.s y. g ;,. * . g. g,, Nd.? ,acw:,

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b$b . )s.n.:;) 2.'. I .'l $f.fgk f : ; y % ll "' %%,',4 'to * .c. ~,l. " $g R *.- 's. 4 _ V 1 _'f', ,\\ g f .. 4l 1_ > ,4' y e, /, - .M '.' t' f r,. 1 e. e., v., ... i. ,1 ,c.. .e. g ,, v'..* [* y .,l, I f, ( 3 1 .&:]. 4.s.c. -

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    • L Sul i 00tpECTIVE ALT 10'4 OTS-32 LLRT s' u t ist Vf rif ive 4/A tsLItoATLH T t. 5 T box PER.> R Jr e00h.

W4 t)S4 ht a I SPARF DIFsrt u.a. Sup6F Pdt VFr llVE '4/ 4 PE RF O'11t'O Po JL EOU9 L TO 4 L F OD 4 THE SOAPL SUPPRESSOR HR 0%I4 dl SudGL SIlP P M!' S S tJR U til i ( *4 TH1 % Tq tf 40 34 I CHtCKr0 CONTINUITY OF TR[G6fR PdFVENTIVE N/A I 213 3 - ! ! O f> A t.') SBLC SOU!3 VALVE TRIGGFR ASSM. WR 051%31 ASSrMDLY I..

  • D i:~

PACKUP AIR (0:40. L0 ttP. PREVFNTIVE N/A FOUND MAI4UAL RESET MUT Tore,N1T Mf SE T, WR D49990 RESET BUTTON,LOOKS UK, W L t4 T THROUGH CYCLE I, MOV 750511 D I SC ONt4F C T ED AND RECONt4FCTED PREVENilVL N/A WR 053000 METER AND LIMITS, LEFT OK I. + DI SCONEC TFD AND RFLONNEC TE0 MO T04 LEADS i MOV 7505A PREVrNTIVE N/A 'I WR D%3001 LEFT OK gW I, l' I '?. 7504tt PHFVENilVE N/ A D I SC ONr4E CT ED AND RECO'4NFCTL7 MJTup M OV WR 053007 AND LIMITS. LEFT OK I: I .1 3 4 I MOV 7504A PRF Vrt4 T I VE N/A DISCON 4FCTI 0 AND RECON'erCTED MOTOT WM V53003 LFAni, LEFT OF 1 I a-al Sr lP4'4F C T E f: A:4's o t C 994'4F L it9 "F OR ' ' MOV T50FP Pa r Vr NilVf; 4/a I W;t d55004 AND LI,1ITS, LCFT OK ? } I .zn otrSFL <,r ara iCa Paivrailvt n/.s ec ar.3r,4r o au A= T r xt y I N sPe r.f l oN Pea wa.is3ror eaoc fuge, t eri oK g I i &Dr e

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UNIQUE REPORTING REQUIREMENTS MAIN STEAM RELIEF VALVE OPERATIONS Relief valve operations during the reporting period of July, 1986 are summarized in the following table. The table includes information as to which relief valve was actuated, how it was actuated, and the circum-stances resulting in its actuation. Valves Description Unit Reporting Period Actuated Actuations Conditions of Events 1 2 07-01-86 to 07-31-86 None i 3 07-01-86 to 07-31-86 None J J I O I i J

0:

SUMMARY

OF OPERATING EXPERIENCE UNIT TWO 07-01-86 to 07-14-86 Unit 2 entered the month on-line operating at 812 MWe and at maximum core flow. The unit operated until 0147 hours of July 12th, when a turbine trip and high flux scram occurred because the IC MSIV went full-close during normal surveillance testing. After de-inerting was completed, station personnel entered the drywell and replaced the MSIV limit switches. 1 The reactor was made critical at 0855 hours of July 13th, and scrammed at 1420 hours because of low condenser vacuum. The reactor was again made critical July 14th at 0140 hours and the unit was brought on-line at 1445 hours of the same day. 07-15-86 to 07-31-86 The unit operated the remainder of the month reaching a power level of 790 MWe with an availability of 91.81% and a capacity factor of 81.33%. i 4 1 1 I l i

SUMMARY

OF OPERATING EXPERIENCE I UNIT THREE 07-01-86 to 07-31-86 Refueling outage activities continued throughout the j entire period. The unit is presently scheduled for startup on August 8, 1986. Major work includes: - Normal pump (s) and valve (s) maintenance - LLRT - ILRT - Torus cleaning i i j 4 ,,. _,. - _ ~ -, ..--4 e- . ~

ODCM REQUIREMENTS Revision to the Off-Site Dose Calculation Manual 1 Table 8.4-1 of the Dresden site specific Off-Site Dose Calculation Manual (ODCM) was revised to clarify the need for far field air sample analyses. The sampling frequency at the far field locations remains continuous. However, the frequency of analysis of the samples shall be determined by an evaluation of the activity levels of the near field sampling locations. Footnote b was added to.page 8.4-6 stating that far field air samples need 1 to be analyzed only when near field locations indicate elevated activity levels confirmed as having their origin in airborne effluents released from the station, or at the discretion of the Emergency Planning Supervisor. 4 1 The appropriate sections of Table 8.4-1 were updated and incorporated into Revision llA of the ODCM. Pursuant to Section 6.8.B of the Technical Specifications for Dresden Unit 2 and Dresden Unit 3, the appropriate docu-mentation is provided in this Monthly Operating Report in support of the adjusted changes to the ODCM. 1. Attachment A: Copy of ODCM, pages 8.4-2, 8.4-3, 8.4-5 and 8.4-6. r' .}}

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