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Semiannual Radioactive Effluent Release Rept for Jan-June 1992 for Catawba Nuclear Station,Units 1 & 2
	ML20114D444
Person / Time
Site:	Catawba
Issue date:	06/30/1992
From:	Tuckman M; DUKE POWER CO.
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	NUDOCS 9209080195
	Download: ML20114D444 (39)
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. Catan t a hr trar r,:eneratwn ikp ument tire t*,rsihm 4 ??r0 Concord llrcl (ht(s)Ct1J2 6 Oling f ork. SC 29r45 tw3.n3I.313 ya DUKf! POWER August 26,1992 U.S. Nuclear Regulatory Commission

' A'ITN: Document Control Desk Washingmri, DC 20555 i

Subject:

Catawba Nuclear Station, Units 1 and 2 Docket Nos. 50-413 and 50-414 Semi-Annual Radioactive Effluent Release Report Gentlemen:

Pursuant to Catawba Technical Specification 6.9.1.7, attached is the subject report covering the first half of 1992.

The contents of the report are as follows:

Attachment I

- Radioactive Effluent Releases and Supplementary _Information

- Attachment II -

Solid Waste Disposal Repon Attachment III Unplanned Offsite Releases Attachment IV Inoperable Monitoring Equipment There were no changes to the Offsite bose Calculation Manual (ODCM) or the Process Control Program (PCP) for the period January 1,1992 through June 30,1992.

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- Should there be any questions concerning this repon, please call C.R. Lewis at (803) 831-L

'3076.

Very truly yours,

, b.

M.S. Tuckman Attaciunents y3 k

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d Document Control Desk Page 2 August 26,1992 xc (W/ Attachments):

S.D. Ebneter, Regional Administrator Region II W.T. Orders, Senior Resident Inspector R.E. Martin ONRR i

. II. Shealy, Ch ef -

Bureau of Radiological IIcalth, SC American Nuclear Insurers :

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(

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3 7.68 %

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1 CS 137 29.49

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i H

3 10.80 %

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. $XIN, MAXIMUtt 000F-6.90E-03 MREM CRITICAL AGE-iEEN' CRITICAL PATWIAY -

SHORE f

CO' 60 94.87 %^

(

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' 7.31 7.

CS 13%.

24.9s % ';

i CS 137 63.64 %

4.60E O2 MREM.' CRITICAL AGE-TEEN CRITICAL PAT 194AY-FISH i

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3 5.59 %

CO -60 12.86 %.

CS-134.

31.79 %

CS 137

.44.00 %

l j

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ADL1.T CRITICAL PATf91AY-FISH N'

.' 3 11.46 %

CO 60 5.78 %

CS 134 38.70 %~

CS 137

'41.73 %-

l THYROID MAXIMUM DOSE-9.32E-03 MREM CRITICAL AGE-TEEN CRITICAL PATHNAY-SHORE l

H 3

27.55 %-

l CO 60 59.72 %-

}

I 131 9.16 %

' KIDNEY MAXIMUM DOSE- - 2.03E-02 t1 REM CRITICAL AGE-TEEN' CRITICAL PATHMAT-FISM l

H 3

12.65 %

CU 60

.27.43 %

CS 134 22.97 %.

CS 137 34.15 %.

Lt.NG '. NAXIt1UM DOSE-- 1.36E-02 t1 REM CRITICAL AGE-TEEN' CRITICAL PATPHAY-FISM H ~

3 18.86 %

FE 55 5.46 %.

CO - 60 40.88 %

i-

'CS 13'4 13.19 %

CS 137-20.11 %

- GI-LLI MAXIMurf DOSE. 8.30E-02 MREM CRITICAL AGE-ADULT CRITICAL PATHHAY-FISH C3 60. 8.99 %.

TB 95 78.80 %

l l

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. 8.96 2-CS-134 24.51 %

1 CS 137 61.06 %

LIVER ' MAXIMUM DOSE-- 9.56E -02 HREM CRITICAL AGE-TEEN ' CRITICAL PATHNAY-FISH CU 60 15.23 %

CS 134 30.87 %

CS.137 41.70 %

- T. BODY - MAXIMUM DOGE-6.12E-02 MREM CRITICAL AGE -

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3

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CS 137 4n.86 %

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3 20.14 Z :

CO ^ 60 63.71 %

,I 131.

11.33 %

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.H 3

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CS 137 31.73 %

LtRG MAXIMUM DOSE-' 2.9BE-02 MREM CRITICAL AGE-TEEN CRITICAL PATHHAY-

ME H

3 14.56 %

FE 55 6.29 %

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GI-LLI KAXIMUM DOSE. 2.70E-01 MREM CRITICA'L AGE-ADULT CRITICAL PATHMAY-FISH CO 63 6.60 %

j te 95 84.40 %

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~

1 SPECIAL LOCATIcts RELEASE ME2GHTED t1ET REPORT SUPT 1ARY 08/19/?E AT 0,50 MILES f4E

=

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1.11E-01 HILLI CDS I'

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AR 41 89.63%

AR 41 84.55%

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' CATAMBA (JNIT 2 CA3 CC3E 092-182 92 RELEASE HEIGITED MET REPORT SumARY 08/19/92:

i

. 3PECIAL LOCATICF4 AT 0.50 f*ILES ' 5 NOBLE CA3 EXPtIAJRE r '-

~ BETA AIR DCM

Y.ME-02 MILLIRADS GAf1MA AIR DCM = ' 1.24E-01 MILLIRAD 3 TUTAL BODY DO3E = 8.10E-02 MILLIREM TUTAL SKIN DcGE'.m 1.48E-01 MILLIREM XE133 19.36%

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XE135 7.992 ;

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' CATAHbA LMIT 2 CAS 0%E 092-182 92 RELEASE HEIGHTED NET REPORT E M %RY 08/19/92

' SPECICL LOCATION' AT 0.50 MILES' S.

ICDINE, PARTICULATE,' AND TRITIUM EXPOGURE TIPirtAM:

MAXIt0H URFAN

- THYRUID CRITICAL AGC.

- CHILD -

' CRITICAL PATHHAY - VEGET-

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BETA AIR D".,E

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t TUTAL BCDY CCSE = 2.11F-01 MILLIREM '

TUTAL SKIN DOSE = 3.68E-01 NILLIREM Tc133.

13.01%

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g AR 41

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SUPPLEMEllTAL REPORT PAGE 2 CATAWBA llVCLEAR STAT 10ti i

Values represented by "0.00E+00" within the body of the semi-annual report :are below the minimum - detectablo. limits of the Catawba counting systems.

are listed below:- - Typical MDA's-for the Catawba counting systems AVERAGE

- IEPJ2EE-EtiSRGY (Kev)

MDA Xo-133 80 3.50E-08 Co-144-133 3.00E-07 Kr-88 199 3.60E-08 Xo-135 249 1.15E-08 Kr-87' 402 3.15E-08 Cs-137 661 2.50E-08 Mo 99 778-1.4SE-07

. Mn-54 834 2.65E 38-Zn-65 1115 6.85E-08

' Co 1332 2.95E-08 J-i 6

h 9

4 1

+

.......,., ~, -, -

-, - - -... ~. -., ~. -. ~.... - - _. - -., _ _ -....... -.. -. -., _..

s SUPPLEMENTAL REPORT PAGE 3 CATAWBA NUCLEAR STATION The estimated percentage of error for both Liquid and Gaseous effluent release data at Catawba Nuclear Station has been determined to be 123%. This number was derived by summing tae following individual estimates of errors:

t

- 1)

Flow rato determining devices = 15% -

2)-

Counting error = il5%

3)

Sample preparation error = i3%

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CATAWHA NUCLFJkR STATION - SOLID RADIOACTIVE WASTE

SUMMARY

OF PRINCIPAL RADIONUCLIDE COMPOSITION j

i REPORT PERIOD 1/1/92 THROUGH 6/30/92 j

Type of Wnsto Radionuclide

% Abundance 1.

Wacto from Liquid Systems (A) Dewatered' Secondary Hesinn Mn-54 2.1

[

Co-60 2.1 l

Sb-122 3.4 Sb-125 3.7 1-131 14.5 Cs-134 27.9 f

Cs-136 2.7 Cc-137 39.3 La-140 2.5 (B) _ Dewatered Primary Rosina Hn-54 9.1 Co-58 4.5 Co-60 14.7 Ca-134 5.8 Cs-137 11.1 re-55 42.3 Ni-63 10.2

-(C) Evaporator Concentrates (none shipped this period)

( D.' Dowatered Mechanical Filters Cr-51 3.6 Mn-54 4.0 Co-58 28.2

-Co-60 4.2 L

Nb-95 1.2 L

Fe-55 52,3 L

N1-63 5.8 (E) Dewatered Daniineralizers (none shipped this period)

[

-- ( F ) Solidified Acids,;0ils, Sludges (none shipped this period)

L r-'

Average percent abundance for all shipments during period (not listed if <1%)_

l-t-

l:

1 l'

L L

Page 1 of 2 1

r I.

' [ $.

-w

,,#.,~

,.,-...%.m m a,, r.,.

.,,,,..m._._,.

..ym,

,.,.mm.,..yy,

,,,,vv.,

.,,.--,.y,--

.->,-,-.3

1 e-CATAWBA NUCLEAR S' RATION - SOLID RADIOACTIVE WASTE

SUMMARY

OF PRINCIPAL RADIONUCLIDE' COMPOSITION i

' REPORT PERIOD 1/1/92 THROUGil 6/30/92 Typo of Wasto Radionuclide 4 Abundanco 2.

Dry Dolid Waate l

(A) Dry Activo Waste (compact.ed)

(none shipped this perjod)

)

(B)- Dry Activo Wasto (non-compacted)

H-3 1.5 Mn-54 3.7-Co-58 57.2 Co-60 7.7 Cc-137 1.0

-Fo-55 19.6 N1-63 7.6 (C) Dry Active Waute (brokered)

H-3 17 Mn 3.8 Co-58 58.9-Co-60 7.4 Cs-137 1.0 Fe-55 77.9 Ni-63 7.6 (D)- Irradiated Components (none chipped this period)

Average percent abundSnce for all shipments during period (not listed if <1%)

L

+

l -.

l l

l:

Page 2 of 2 1

-. _...... _,, -.., _ _ _ _.. ~..

. - -. _. _ _. _ - -..,.., ~,. _. - -,.. - -.. _ _ _ _,.. -.. _.... _ - _ _ _. _, _

h$p'*

.q',

~

=

T I

ATI'AC.'MLNT In UNPLANNED OFFSITE itELEASES b

~n

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

i r

3 r

. There were no unplannal offsite releases auring this reporting period, t

+

.=

a J

k

%a-a

-. ~

e r-c-m,,e+.

m-a

.r

,ye

, --+

--.o

-+-

.-----e----,--

r

.-wy-w,

w y

w

I NITACIIMFST IV INOPERAllLh %IONrl'ORING EQUIPMENT

. ~>

During the period from January 1,1992 through June 30,1992,1/2 EMF-33 were inoperable for an indetenninate period of time. On hiay 1,1992, Operations found that the loop seals on 2 EMF 33 (Condensate Steam Air Ejector Off Gas hionitor) were improperly aligned.

The inlet valve to the sightglass was opened and allowed air to be drawn into the suction line which diluted the CSAB s:unple flow, Operations closed the drain valves and 2 EMF-33 immediately went from approximately 170 cpm to appmximately 350 cpm (the corresponding IEMF-33 only changed approximately 20 epm when its drain valves wer, closed). The realignment came as a result of a Perfonnance PT being perft.nned and CSAE was exhausting through the Unit Vent versus the VA Exhaust Fans. All air sample results processed by it : Radiation Protection Shift Compliance group during this time period did not result in any activity concentrations greater than 3.39E-06 uCi/ml.

Problem Investigation Report 0-C92-0367 was initiated by Operationc on hiay 4,1992.

During the time period, routine daily and/or weekly Unit Vent sampling took place. No gaseous activity above natural background was identified for these samples, nor were any radiosotopes other than K-40 and other "aturals identified in the particulate and charcoal I

samples.

w 4

_

ML20114D444

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