ML19345G520

Annual Operating Rept,1980

ML19345G520
Person / Time
Site:	Zion  File:ZionSolutions icon.png
Issue date:	04/03/1981
From:	COMMONWEALTH EDISON CO.
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ML19345G517	List: ML19345G516 ML19345G519 ML19345G520
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NUDOCS 8104070431
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ZION GENERATING STATION ANNUAL OPERATING REPORT 1980 00CKETS 50-295 AND 50-304 COMMONWEALTH EDISON COMPANY l

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TAELE CF CONTENTS I.

Environment.al Reports A.

Intake ano Discharge Data 8.

Rates of Change of Circulating water Temperature C.

De-icing D.

Violations of Environmental Technical Specifications E.

Malfunction of Environmental Monitoring Equignent F..

Hypochlorite Usage G.

Shoreline Erosion Status H.

Sumary of Chemicals Useo at Zicn Station and Dischargec to Lake Michigan II.

~ waukegan Memorial Airport Expansion Plans III.

Mooifications, Tests and Experiments IV.

Annual Occupational Exposure Data V.-

Challenges to Primary System PORV and Safety Valves

INTRCCUCTION This Annual Report by Commonwealth Edison Company, Zion Station transmits envi:cnmental cata, near-site airport expansicn plans, facility modifications, tests, experiments, occupational exposures, and challenges to the primary systems PORV or safety valves. Although the Annual Report is no longer recuireo by Zion Technical Specifications, the annual reporting of certain items is requirec. The follcwing areas are accressed in this report:

I.

Environmental Report Regarding Chemical and Temperature Discharges II. Expansion Plans for Waukegan Memorial Airport III. Mccifications, Tests and Experiments Concocted at the Plant IV.

Occupational Exposure Report V.

Challenges to Primary System PORV or Safety Valves

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I ENVIR0 MENTAL REPORT I

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A.

UNIT 1 INTAKE Ato DISCHMICE TEMPERATLEE DATA MONTH' A T' E INLET TEMP 'F DISCHARGE TEMP

'F 1980 (AVG)

( AVC)

(AVG)

JAN Outage Outa0e Outage FEB 11.9 35.9 47.8 MAR-19.2 38.1 57.3 AH1 19.3 43.5 62.8 MAY 17.0 49.4 66.4 JUNE 17.8 52.2 70.O JA.Y 22.0 60.6 82.6 AUG 20.9 59.7 80.6 SEPT 23.5 54.8 78.3 OCT 25.6 54.1 79.7 NOV 27.8 45.5 73.7 DEC 23.3 36.6 59.9 TtE ItFORMATION IN THIS TtE INFORMATION IN THIS ItE INFORMATION IN THIS COLUMN WAS DERIVED FROM COLUMN WAS DERIVED FROM COLUMN WAS DERIVED FROM TIE TECil STAFF DAILY LOG SUBTRACTING TtE AT AVG TtE TECli STAFF DAILY LOG WHIai IS TAKEN FROM TtE FROM TIE DISCilARCE TEMP WHIOi IS TAKEN FROM ItE i

STRIP OMRT.

AVG.

STRIP CliARTS.

l A.

UNIT 2 INTAKE Ato DISCHARGE TEMPERATURE DATA l

l MONTH A T' F ItLET TEMP 'F DISCHARGE TEMP

'F 1980 (AVG)

(AVG)

(AVG) l f

JAN 25.0 37.0 62.0 F EB 18.8 35.9 54.7 MAR 21.4 36.6 58.0 l

AFR 18.9 43.5 62.4 MAY 17.7 (1 Day) 45.5 (1 Day) 63.2 (1 Day)

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JUNE Outage Outage Outage JJLY.

16.1 (3 Days) 66.0 (3 Days) 82.1 (3 Days) l l

AUG 22.6 58.0 80.6 l

SEPT 24.0 54.7 78.2 GCT 24.1 53.6 77.7 l

NOV 24.4 45.1 69.5 DEC 25.6 38.1 63.7 THE-INFORMATION IN THIS TIE INFORMATION IN THIS TIE ItFORMATION IN THIS COLUMN WAS DERIVED FROM COLLMN WAS DERIVED FROM COLUMN WAS DERIVED FROM TtE TECH STAFF DAILY LOG SUBTRACTING THE AT AVG TtE TECH STAFF DAILY LOG WHICH IS TAKEN FROM TtE FROM TtE DISCHARGE TEMP WHICH IS TAKEN FROM TIE STRIP CHART.

AVG.

STRIP CHARTS.

B.

UNIT 1 RATES OF CIRCULATING WATER aT CHANGE UNDER NORMAL STARTUP AND SHUTDOWN (1980)

DATE RATE OF CHANGE 'F/HR 2-23-80

+ 2.3 2-23-80

- 2.7 2-23-80

+ 5.5 6-04-80

+ 1.9 6-29-80

- 3.4 6-30-80

+ 6.0 8-23-80

+ 3.3 8-25-80

+ 4.3 8-28-80

+ 2.4 9-14-80 3.7 9-15-80

+ 2.2 9-16-80

+ 3.0 10-17-80

+ 3.0 11-18-80

+ 1.8 12-04-80.

+ 4.0 l

12-10-80

+ 3.2 12-13-80

+ 5.4 t

NOTE: The ' rate of change for AT was calculated by noting AT at the beginning and end of normal startup and shutdown. The difference in aT was then l

- divided by the number of elasped minutes giving an average rate per minute. This was multiplied by 60 giving an average rate per hour.

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UNIT 2 RATES OF CIRCULATING WATER aT CHANGE UtOER_

NORMAL STARTUP AND SHUT 00nN (1980)

DATE RATE OF CHANGE 'F/HR 1-24-81

+ 2.2 4-05-80

+ 1.9 5-02-80

- 3.3 7-26-80

+ 1. 4 l

7-28-80

+ 1.0 t

8-12-80

+ 2.3 9-05-80

+ 3.7 9-06-80

+ 3.7 11-16-80

+ 3.2 1

12-08-80

+ 4.2 NOTE: The is te of change for AT was calculated by noting AT at the beginning and end'of normal startup and shutdown. The difference in AT was then divided by the number of elasped minutes giving an average rate per minute. This was multiplied by 60 giving an average rate per hour.

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C.

DE-ICING Zion Station operated in the De-icing Moce curing the first three months of 1980. The De-icing Mode was not required throughout the winter.

D.

VIOLATIONS OF THE ENVIR0tNENTAL TECMICAL SPECIFICATI0t6 There were four violations of the Environmental Technical Specifications during 1980, all relateo to pH of the waste water treatment facility ef fluent. Effective January 14, 1981, Appendix 8 Technical Specifications Section 1.3.C ano its corresponding Section 2.3.C were deleted. These changes eliminate pH limitations from the Environmental Technical Specifications.

References:

LER #'s 50-295/80-33, 35, 45 & 47 E.

MALFUNI,. ION OF ENVIRONENTAL MONI RING EQUIPTNT There were no. malfunctions of the environmental equipment in 1980.

F.

HYP0 CHLORIDE USAGE There was no sodium hypochlorite used at the Station in 1980.

G.

SHORELINE EROSION STATUS Commonwealth Eoison Company is continuing to monitor the status of shoreline erosion at the Station and adjoining properties. Monthly photograpnic surveys of the area are being concucted, and will be continued until such time as the company and the State of Illinois cetermine whether any additional restoration work will be required.

During 1980, some erosion taking place at the Northern end of the property was attributed to concrete clocks submerged in about 4 feet of water.

During 1980 the vast majority of the blocks were removea.

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Tech Spec Ref.

H.

SUMMARY

OF CIEMICALS USED AT ZION STATION App B, Sec 2.3.B.l' AND DISCHARED TO LAKE MICHICAN Year: 1980 SYSTEM:

Waste Neut. Tank Waste Neut. Tank Component Cooling Component Cooling Lake 01s. Tank Lake Dis. Tank

. CtEMICAL :

Sulfuric Acid Sodium Hydroxide Potassium Hydroxide Potassium Dichromate Boric Acid Detergents (cals)

(gals)

(lbs)

(lbs)

(lbs)

(1bs)

January 27.0 59.0 9.14 February 29.0 70.0 18.97 March 10.0 30.0 14.11 April 18.0 35.0 14.83 May 10.0 25.0 23.51 June 25.0 60.0 9.47 July 15.0 100.0 65.30 August 35.0 60.0 32.13 September 19.0 18.0 63.25 October

0. 0 2.5 61.27 November 0.0 1.0 176.73 December 0.0 4.0 363.49 Yearly Total 8895.00 8668.00 188.00 464.50 852.20 0.0*

Comnants:

• No detergents used in laundry, all cleaning is done by dry cleaning.

II WAUKEGAN MEMORIAL AIRPORT EXPANSION PLANS Based aircraft numoered 250 at the end of 1980. The total number of operations for 1980 was approximately 210,000.

Phase two of the expansion project (the acquisition of land necessary to lengthen the main runway 1400 feet to the northeast) has not yet been complete 0.

Phase three (the acquisition of land to the northwest for corporate aircraft) has not started.

The following events occurred during 1980:

1.

Land acquired for a corporate taxiway along runway 14, is complete.

2.

A new fixeo base operator continued business on the field. There was no new business.

Tne airport's Environmental Impcct Assessment Report was submitted in 1978. The review has not yet been completed.

Attacheo is FAA form 5010-1 for Waukegan Memorial Airport for 1980 as requirea by Technical Specification 6.6.3.C.

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III MODIFICATICNS, TESTS AND EXPERIMENTS There were two modifications completed in 1980 which involved a change to the facility as oescribed in the FSAR. None of these modifications were considereo to be an unreviewed safety question as defined in 10 CFR 50.59(a)(2) and no Technical Specification change was required. A brief aescription of these modifications as well as a summary of the 10 CFR 50.59 evaluation is given below:

There was no testing performed during 1980.

The only experiment performeo in 1980 was the EPRI/ Westinghouse Extended Burnup Program which involved the exposure of four fuel assemblies in Unit 2 Cycle 4.

This was the fourth cycle of exposure for the assemblies.

At the end of Cycle 4 operation, the four assemblies were discharged with an average ournup of approximately 47,000 Mwo/MTU. The assemblies were leak testeo with no detectable leaks observed.

The assemolies were re-inserted for a fifth Cycle of irraciation in the Unit 1 Cycle 6 core. Predicted average burnup for the end of Cycle 6 is approximately 55,000 MWO/MTU. Cycle 6 operation will end in the spring of 1982.

Description of Modifications:

A mooification was performeo on each unit (Unit 1: Mod M22-1-80-46, Unit 2: Mod M22-2-80-46) that removes the safety injection isolation signal from the circuitry of the charging pump miniflow isolation valves. With the signal removed adequate flow through the charging pumps is ensured in the event the pumps cannot overcome reactor coolant system (RCS) pressure. This ficw ensures cooling of the pumps under all applicable RCS pressures. The interlocks from SIX-SA and SIX-58 relays are disconnected for the control circuitry of the minimum flow isolation valves 1(2)MOV-VC8110 ano 1(2)MOV-VC8111.

The probability of an occurrence or the consequence of an accident, or malfunction of equipment important to safety as previously evaluated in the Final Safety Analysis Repcrt is not increased.

Sensitivity studies done by Westinghouse have shown that these accidents are relatively insensitive to mini flow isolation as long as the miniflow is unisolated when the RCS pressure reaches the RCP trip setpoint.

The possibility for an accioent or malfunction of a different type than any previously evaluateo in the Final Safety Analysis Report is not created. The modification will increase the reliability of the pumps and analysis has shown that adequate flow is still maintained to the RCS.

The margin of safety, as defined in the basis for any Technical Specification is not reouceo. The pumps will still provide adequate flow

-to the RCS as requireo by the Technical Specification.

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IV ANNUAL CCCUPATIONAL EXPOSURE DATA This cata for 1980 was submitted to the Nuclear Regulatcry Commission by a letter from J.S. Eitel, Tech Services Department, to Mr. James G. Keppler, Regional Director catec February 25, 1981.

V CHALLENCES TO PRIMARY SYSTEM PORV AND SAFETY VALVES These were no challenges to the primary system TORV or safety valves in 1980.