ML20034E951

Semiannual Monitoring Rept for Jul-Dec 1992

ML20034E951
Person / Time
Site:	Point Beach
Issue date:	12/31/1992
From:	WISCONSIN ELECTRIC POWER CO.
To:
Shared Package
ML20034E942	List: ML20034E941 ML20034E951 ML20034F023
References
NUDOCS 9303020113
Download: ML20034E951 (17)

Text

..

4 PREFACE This Semiannual Monitoring Report for the period of July 1,1992, throrgh December 31,1992, is submitted in accordance with Point Beach Nuclear Plant Unit Nos.1 and 2 Technical Specification 15.7.8.4 and filed under Docket Nos. 50-266 and 50-301 for Facility Operation License Nos. DPR-24 and DPR-27, respectively.

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TABLE OF CONTENTS Section Title Pm 1.0 Radioactive Liquid Releases 1

2.0 Radioactive Airborne Reteases 5

3.0 Radioactive Solid Waste Shipments 8

4.0 New and Spent Fuel Shipments 9

5.0 Radiological Environmental Monitoring 9

6.0 Nonradioactive Chemical Releases 14 7.0 Circulating Water System Operation

.14 8.0 Leak Testing of Radioactive Sources 15 9.0 Miscellaneous Reporting Requirements 15

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SEMIANNUAL MONITORING REPORT

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3 July 1, 1992 to December 31, 1992 l

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1.0 RADIOACTIVE LIOUID RELEASES

{

l The total radioactive liquid release, excluding tritium for this reporting i

l period, was 3.32E-01 curies. This included 2.33E-01 curies in processed i

radioactive waste and primary coolant system letdown, 2.42E-04 curies in

{

s Unit 1 steam generator blowdown, 1.00E-01 curies in Unit 2 steam generator

+

i blowdown and 1.70E-04 curies in retention pond effluent.

f I

The total tritium release for this reporting period was 2.17E+02 curies.

1 This included 2.17E+02 curies in processed radioactive waste and primary

?

coolant system letdewn, 7.37E-02 curies in Unit 1 steam generator blowdown, i

5.51E-01 curies in Unit 2 steam generator blowdown and 9.33E-02 curies in j

retention pond effluent.

r 1.1 Circulatina Water Radionuclide Release Summary i

i 1.1,1 Releases During Current Reporting Period Radioactive liquid releases via the circulating water discharge are summarized by individual source, total and i

4 d

equivalent curie release on a monthly basis and presented in Table 1-1.

?

1.1.2 Additions to Previous Semiannual Monitoring Report

)

The following information was not available at the time of the previous report preparation and should be added to Table 1-1 of the Semiannual Monitoring Report for January 1, 9

j 1992, through June 30, 1992.

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1 6-MONTH' l

FE JUlm TOTAL l

l Total Activity Released (Ci) f 4

)

Gross Alpha 6.2E-05

<MDA 6.4E-05 l

Strontium cMDA 2.5E-05 1.0E-04 f

l Average Diluted Discharge Concentration ( Ci/cc)

Gross Alpha 1.1E-12 (MDA I

Strontium cMDA 4.5E-13 l

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6 TABLE 1-1 ISOTOPIC COMPOSITION OF CIRCULATING WATER DISCHARGE JULY 1, 1992 THROUGH DECEMBER 31, 1992 JUL AUG SEP OCT NOV DEC TOTAL Total Activity Released (Ci)

Gamma Scan 2.19E-02 2.22E-03 2.66E-01 3.30E-03 9.12E-03 9.62E-03 3.32E-01 Gross Alpha 1.8 E-07

<MDA 9.2 E-06 (MDA

<MDA (1)

(1)

Tritium 5.44E+01 3.85E+01 4.88E+01 5.68E+00 3.59E+01 3.40E+01 2.17E+02 Strontium 2.6 E-05

<MDA 1.3 E-04 3.9 E-05 1.1 E-05 (1)

(1)

Total Volumes Released (Gal)

Processed Waste 1.19E+05 1.39E+05 2.04E+05 1.35E+05 1.41E+05 7.30E+04 7.84E+04 (U1) Steam Generator Blowdown 3.57E+06 3.57E+06 3.46E+06 3.67E+06 3.39E+06 3.57E+06 2.12E+07 (U2) Steam Generator Blowdown 3.57E+0G 3.57E+06 3.03E+06 (2) 2.03E+06 3.95E+06 1.62E+07 Retention Pond 2.49E+06 2.39E+06 2.44E+06 2.86E+06 2.55E+06 2.44E+06 1.52E+07 Total 9.75E+06 9.67E+06 9.13E+06 6.67E+06 8.11E+06 1-00E+07 5.33E+07 Volume of Dilution Water (Gal) 1.52E+10 1.52E+10 1.47E+10 1.56E+10 1.49E+10 1.31E+10 8.87E+10 Average Diluted Discharge Concentration (uCi/cc)

Gross Gamma 3.81E-10 3.86E-10 4.77E-09 5.58E-11 1.62E-10 1.95E-10 Gross Alpha 3.1 E-15

<MDA 1.6 E-13

<MDA

<MDA (1)

Tritium 9.47E-07 6.70E-07 8.75E 07 9.60E-08 6.37E-07 6.89E-07 Strontium 8.1 E-13

<MDA 2.3 E-12 6.5 E-13 1.9 E-13 (1)

Maximum Discharge Concentration During Release Period (uCi/cc)

Gross Gamma 9.31E-10 8.19E-10 6.21E-08 1.45E-09 1.38E-09 1.52E-09 Tritium 3.25E-05 2.15E-05 1.05E-05 6.15E-06 3.40E-05 6.254-05 Total Equivalent Curies Released Co-60 Equivalent Curies 3.13E-03 4.02E-03 3.10E+00 3.44E-02 1.27E-01 9.40E-03 3.28E+00

% Annual RETS Limit 3.31E-03 4.75E-03 3.27E-00 3.63E-02 1.34E-01 9.93E-03 3.46E+00 I-131 Equivalent Curies 3.12E-03 2.42E-03 1 02E-02 6.92E-04 4.79E-05 3.22E-04 1.68E-02

% Annual RETS Limit 1.19E 02 9.27E-03 3.89E-02 2.64E-03 1.83E-04 1.23E-03 6.37E-02 Tritium Equivalent Curies 5.44E+01 3.85E+01 4.88E+01 5.68E+00 3.59E+01 3.40E+01 2.17E+02

% Annual RETS Limit' 2.82E-01 1.99E-01 2.53E-01 2.94E-02 1.86E-01 1.76E-01 1.13E+00 (1)

Information unavailable at time of report preparation.

(2)

Unit 2 refueling shutdown from September 26, 1992 to November 18, 1992.

Note: Dissolved noble gases detected in liquid effluents are included in airborne release totals RETS = Radiological Effluent Technical Specifications.

2

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

i i

1.2 Isotopic Composition of Circulatina Water Discharoes 1.2.1 Releases During Current Reporting Period f

The isotopic composition of circulating water discharges during the current reporting period is presented in Table 1 '

l i

1.2.2 Additions to Previous Semiannual Monitoring Report j

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The following information was not available at the time of report preparation and should be added to Table 1-2 of the Semiannual Monitoring Report for January 1,

1992, i

through June 30, 1992.

i f

3 6-MONTH MAY JUN TOTAL i

f Sr-89 (Ci)

(MDA

<CA

<.MDA Sr-90 (Ci) cMDA

'2.5 E-05 1.0 E-04 l

l 1.3 Subsoil Drain System Peleases of Tritium i

i 1.3.1 Releases During Current Reporting Period

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i The releases of tritium via the subsoil drain system

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during the current reporting period is presented in

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Table 1-3.

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i TABLE 1-3 i

SUBSOIL SYSTEM DRAINS - TRITIUM SUIC%RY July 1,.1992 through December 31, 1992 l

i First Ouarter M

M M

S-10 Totals H-3 (pCi /t.c)

(MDA (MDA No Sample

<1CA Ave. Flow (gpd) 4.65E+03 3.17E+03 No Flow 6.09E+04

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t Second Ouarter l

i H-3 (pCi/cc)

(MDA

<MDA

<MDA (MDA Ave. Flow (gpd) 4.0BE404 3.64E+04 360 6.70E+04 r

1 Semiannual Totals l

l Total Released (Ci)

(MDA

<WA cMDA (MDA

<MDA j

Total Flow (gals) 4.18E+06 3.64E+C6 3.31E+03 1.18E+07 1.96E+07

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i 1.4 Land Aeolication of Sewace Sludoe Trace amounts of radionuclides may be land-applied with sewage f

sludges on various Department of Natural Resources approved l

Wisconsin Electric Power Company properties surrounding the Point l

Beach Nuclear Plant in accordance with approved methodologies

}

pursuant to 10 CFR 20.302.

The amounts discharged in the sewage during this reporting period are presented-in Table'l-4.

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TABLE 1-4 j

SEWAGE SLUDGE LAND APPLICATIONS July 1, 1992 through December 31, 1992 Date of Aeolication Gallons Site Activity Released (Ci) l December 10, 1992 12,000 PB-02

<MDA 3

1 1.5 Correction to Previous Table 1-4 i

Table 1-4 in the previous Semiannual Report incorrectly indicated f

that the data were from January 1, 1991 through June 30,'1992.

-[

The correct starting date should have been January 1, 1992.

2.0 RADIOACTIVE AIRBORNE RELEASES l

The release paths contributing to radioactive airborne release totals during this reporting period were the auxiliary building vent stack, j

drumming area vent stack, gas stripper building vent stack, Unit 1 j

i containment purge stack, Unit 2 containment purge stack, combined air ejector decay duct exhaust and turbine building ventilation exhaust.

1 There were two gas decay tank releases during this reporting period.

i 2.1 Padioactive Airborne Release Summary f

I 2.1.1 Release During Current Reporting Period

.l 1

Radioactivity released in airborne effluent for the

[

current reporting period are su=marized in Table 2-1.

(

I 2.1.2 Additions to Previous Semiannual Monitoring Report The following information was not available at the time 1

of the last report preparation and should be added to Table 2-1 of the Semiannual Monitoring Report for l

January 1, 1992 through June 30, 1992.

r s

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Strontium (Ci) t l

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JAN 1.4E-06 I

FEB 1.3E-06 MAR 1.3E-06 APR

<NDA i

MAY (MDA l

8 JUN

<MDA r

TOTAL 4.0E-06

?

I 2.2 Isotonic Airborne Releases l

a 2.2.1 Releases During Current Reporting Period 1

The monthly isotopic airborne releases for the current l

I reporting period are presented in Table 2-2.

1 5

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i TABLE 2-1 RADIOACTIVE AIRBORNE RELEASE

SUMMARY

JULY 1, 1992 THROUGH DECEMBER 31, 1992 JUL AUG SEP QQI NOV DEC TOTAL' P

Total Noble Gases (Ci)* (2) 1.00E+00 1.41E+00 8.41E+00 9.44E+00 6.17E-01 9.85E-01 2.19E+01 Total Radiciodines (Ci) :

2.29E-05 9.16E-06 7.43E 05 1.17E-04 2.12E-04

'1.20E-05 4.47E-04 Total Particulates (Ci)-

4.82E-05 3.02E-05 9.47E-06 2.26E-05 3.93E-03 9.25E-05 4.13E-03 Alpha (Ci) :

3.96E-07 1.32E-06 3.53E-07 3.83E-06 5.59E-07 1.43E-06 1.89E-06 Strontium (Ci) :

<MDA

<MDA

<MDA (1)

(1)

(1)

(1)

All Others (Ci):

4.78E-05 2.89E-05 9.12E-06 1.88E-05 3.93E-03 9.11E*05 4.13E-03 Total Tritium (Ci) :

5.30E+00 5.22E+00 6.96E+00 1.62E+01 6.9BE+00 7.60E+00 4.83E+01 Maximum Hourly Average Release Rate (3) (Curies /Second) 1.06E-05 1.82E-05 3.58E-04 7.55E-04 2.46E-04 1.88E-04 Total Equivalent Curies Released i

Co-60 Equivalent Curies 1.27E-05 2.08E-05 1.14E-07 1.82E-04 4.70E-02 1.56E-04 4.74E-02

% Annual RETS Limit 7.38E-04 1.21E-03 6.63E-06 1.06E-02 2.73E+00 9.07E-03 2.75E+00 I-131 Equivalent Curies 6.51E-06 5.74E-06 5.44E-05 1.10E-04 1.67E-04 1.20E-05 3.56E-04

% Annual RETS Limit 1.85E-03 1.63E-03 1.55E-01 3.13E-02 4.74E-02 3.41E-03 1.01E-01 Xe-133 Equivalent Curies (2) 4.02E+00 5.25E+00 1.36E+01 2.15E+01 6.67E+00 8.78E+00 5.98E+01

%- Annual RETS Limit 3.87E-04 5.05E-04 1.31E-03 2.07E-03 6.41E-04 8.44E*04 5.76E-03 i

Tritium Equivalent Curies 5.30E+00 5.22E+00 6.96E+00 1.,62E+01 6.9BE+00 7.60E+00' 4.83E+01

% Annual RETS Limit 1.83E-02 1.80E-02 2.40E-02 5.59E-02 2.41E-02 2.62E-02 1.67E-01 (1)

Information unavailable at time of report pre >aration, but values typically do not alter monthly totalsa (2)

Includes noble gas contribution from liquid releases.

(3)

Expressed as Xe-133 equivalents.

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b TABLE 2-2 RADIOACTIVE AIRBOPRE RELEASE

SUMMARY

j i

JULY 1, 1992 THROUGH DECEMBER 31, 1992 NUCLIDES JUL AUG SEP OCT NOV DEC TOTAL RELEASED (Curiep1 (Curies)

(Curie s)

(Curies 1 (Curies)

(Curies)

(Curies) l Tritium 5.30E+00 5.22E+00 6.96E+00 1.62E+01 6.98E+00 7.60E+00 4.83E+01 Xe-133 7.9BE-01 1.15E+00 7.92E+00 8.38E+00 2.16E-01 6.11E-01 1.91E+01 Kr-85m 2.58E-03 2.77E-03 4.21E-03 1.73E-02 1.02E-02 1.17E-02 4.88E-02

-- g Kr-88 5.92E-03 5.60E-03 7.62E-03 4.0BE-02 1.97E-02 2.51E-02 1.05E-01 Xe-133m 8.56E-03 1.16E-02 5.01E-02 6.69E-03 1.87E-03 4.35E-03 8.32E-02 Xe-135 2.06E-02 2.09E-02 5.91E-02 1.45E-01 1.06E-01 9.95E-02 4.51E-01 Xe-138 2.18E-02 1-97E-02 2.34E-02 1.60E-01 6.50E-02 8.55E-02 3.75E-01 Kr-87 4.94E-03 4.72E-03 5.62E-03 3.58E-02 1.48E-02 1.94E-02 8.53E-02 Xe-135m 7.695-03 8.14E-02 1.03E-02 5.36E-02 1.98E-02 2.92E-02 2.02E-01 Ar-41 6.43E-02 9.63E-02 1.30E-01 1.30E-01 7.65E-02 9.92E-02 5.96E-01 Kr-85 6.31E-02 9.27E-02 1.97E-01 1.22E-01 8.16E-02

<MDA 5.52E-01 Xe-131m (MDA

< TEA

<MDA 3.50E-01 5.60E-03 (MDA 3.56E-01 I-131 5.07E 5.19E-06 4.84E-05 1.08E-04 1.52E-04 1.20E-05 3.31E-04 I-132 5.85E-06 1.14E-06 2.86E-07

<MDA eMDA

<MDA 7.28E-06 I-133 4.63E-06 2.27E-06 2.50E-05 9.48E-06 5.99E-05 1.98E-09 1.01E-04 I-134 1.80E-06 5.56E-07

<MDA dIDA

<MDA

<MDA 2.36E-06

+

I-135 5.57E-06

<MDA 6.30E-07

<MDA

<MDA

<MDA 6.20E-06 i

F-18 6.15E-06 2.49E-06 6.25E-07 3.89E-07

< TEA 7.64E-05 8.61E-05 Co-58 (MDA (MDA

<MDA 2.54E-06 3.39E-06 eMDA 5.93E-06 Co-60 1.20E-05 2.05E-05

<MDA 1.06E-06 6.97E-06

<!OA 4.05E-05 Rb-88 2.12E-05 4.87E-06 7.16E-06

<MDA 2.20E-06 8.87E-07 3.63E-05 Te-132 1.45E-09

<MDA

<MDA

<MDA 6.9BE-07

<10A 6.99E-07 Cs-134

<MDA

<MDA

<MDA 7.64E-06 1.77E-03

<MDA 1.78E-03 Cs-136

< TEA

<fCA

<MDA

<MDA 2.21E-06

• tCA 2.21E-06 Cs-137

<MDA

<MDA

<MDA 7.12E-06 2.12E-03 1.34E-05 2.14E-03 Cs-138 8.52E-06 1.04E-06 1.34E-06

<MDA 3.71E-07 3.83E-07 1.17E-05 i

Au-198

<MDA

< TEA (MDA (MDA 2.24E-05

<MDA 2.24E-05 Sr-89 (MDA

<MDA

<MDA (1)

(1)

(1)

(1)

I Sr-90

<MDA

<MDA

<MDA (1)

(1)

(1)

(1)

Alpha 3.96E-07 1.32E-06 3.53E-07 3.83E-06 5.99E-07 1.43E-06 7.93E-06 (1)

Information unavailable at time of report preparation, but values typically do not alter monthly totals I

reported in Table 2-1.

7 i

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2.2.2 Additions to Previous Semiannual Monitoring Report The following information was not available at the time of previous report preparation and should be added to Table 2-2 of the Semiannual Monitoring Report, covering the period January 1,.1992, through June 30, 1992.

j Sr-89 (C1)

Sr-90 (Ci) i i

January 1.3 E-06 1.1 E-07 l

February 1.2 E-06 9.9 E-08 i

March 1.2 E-06 1.1 E-07 ~

April

<MDA (MDA

(

May

<MDA (MDA I

June

<MDA (HDA j

Totals 3.7 E-06 3.2 E-07 3.0 RADIOACTIVE SOLID WASTE SHIPMENTS Solid wastes shipped for burial during this reporting period were as follows:

l DATE OF SHIPMENT VOLUME TOTAL ACTIVITY 3

TO BURIAL (CUBIC FEET)

(Curies)

BURIAL SITE i

7/31/92 9.9 (3) 1.60E-03 Barnwell SC a

8/08/92 39.0 (1) 1.72E-01 Barnwell SC 8/12/92 1.2 (1) 1.53E-02 Barnwell SC i

8/17/92 2.7 (1) 6.00E-04 Barnwell SC l

8/31/92 1.5 (1) 1.63E-02 Barnwell'SC t

i 9/16/92 25.5 (1) 1.31E-02 Barnwell SC.

9/28/92 360 2 (2) 4.78E+00 Barnwell SC i

9/29/92 20.3 (1)

.1.62E-02 Barnwell SC 10/12/92 49.0 (3) 7.00E-07 Barnwell SC 10/16/92 56.5 (1) 1.71E-02 Barnwell SC 10/16/92 485.3 (1) 3.43E-01 Barnwell SC 10/17/92 10.9 (1) 2.00E-03 Barnwell'SC

^

10/20/92 42.0 (3) 6.00E-07 Barnwell'SC 11/03/92 12.9 (1) 9.50E-03 Barnwell SC 11/18/92 51.6 (1) 1.53E-02 Barnwell SC 11/19/92 54.7 (1, 3 )

2.6BE Barnwell SC 11/19/92 101.9 (1,3) 1.49E-01 Barnwell SC 11/24/92 5.4 (1) 1.20E-02 Barnwell SC

~I 11/28/92 66.3 (1,3) 2.33E-02 Barnwell SC i

11/28/92 147.5 (1,3) 2.76E-02 Barnwell SC 12/03/92 7.0 (1,3) 1.00E-07 Barnwell SC 12/03/92 7.0 (1,3) 4.00E-04 Barnwell SC

[

12/03/92 28.0 (1,3) 1.70E-03 Barnwell SC 12/03/92 56.0 (1,3) 3.30E-03 Barnwell SC 12/04/92 3.3 (1, 3 )

2.00E-04 Barnwell SC 12/07/92 7.0 (1,3) 2.00E-04 Barnwell SC 12/07/92 14.6 (1,3) 6.00E-04 Beatty NV 12/07/92 27.0 (1,3) 2.56E-02 Barnwell SC i

12/08/92 7.0 (1,3 )

2.00E-04 Barnwell SC 12/08/92 7.0 (1,3) 5.00E-04 Barnwell SC 12/09/92 6.0 (1) 1.46E-02 Barnwell SC 12/09/92 11.1 (1) 9.00E-03 Barnwell SC 12/10/92 0.6 (1) 2.23E-01 Beatty NV f

12/10/92 12.8 (1) 4.70E-03 Beatty NV 12/12/92 7.0 (1,3) 2.00E-04 Barnwell SC i

12/14/92 9.3 (1) 1.32E-02 Barnwell SC i

12/14/92 116.9 (1, 3 )

1.24E-02 Barnwell SC i

12/17/92 24.3 (1) 9.00E-04 Beatty NV l

r 8

I

12/17/92 26.4 (1) 2.00E-03 Beatty NV 12/21/92 39.0 (1) 1.40E-03 Beatty NV 12/22/92~

17.6 (1,3) 2.90E-03 Barnwell SC 12/22/92 30.0 (1,3) 5.00E-04 Barnwell SC 12/22/92 37.0 (1,3)

1. 7( ~'- 0 2 Barnwell SC 12/22/92 56.0 (1,3) 2.80E-03 Barnwell SC 12/23/92 13.7 (1) 5.00E 04 Beatty IN 12/28/92 3.9 (1) 4.80E-03 Barnwell SC

.2/28/92 9.9 (1, 3 )

1.20E-03 Banrwell SC 12/28/92 10.2 (1,3) 5.00E-04 Barnwell SC 12/28/92 12.S (1) 8 60E-03 Barnwell SC 12/28/92 16.4 (1) 1.66E-02 Barnwell SC 12/28/92 28.5 (1) 1.41E-02 Barnwell SC 12/28/92 31.7 (1,3) 8.20L-03' Barnwell SC 12/30/92 2.1 (1) 1.50E-03 Barnwell SC 12/31/92 0.9 (1) 1.08E-02 Barnwell SC TOTAL 2232.4 6.05E+00 (1) Dry Active Waste (2) Evaporator Concentrates (3) Scrap Metal 4.0 NEW AND SPENT FUEL SHIPMENTS AND RECEIPTS During this reporting period, a total of 28 new fuel assemblies were received from Westinghouse Electric Corporation for Unit 2.

The new fuel assemblies received for Unit 2 were used for the Fall 1992 refueling.

There were no spent fuel shipments made from Point Beach Nuclear Plant during this reporting period.

5.0 PADIOLOGICAL ENVIRONMENTAL MONITORING 5.1 Introduction The results in this Semiannual Report are presented in the new format which was initiated with the January - June 1992 Report.

Results are reported directly as measured, including negative and zero values. This eliminates the distortion of the results and long-term trends which occurs when the LLD is used to censor results that are below the LLD.

This reporting convention i

follows that recommended in Health Physics Society Committee Report HPSR-1 (1980) released as document EPA 520/1-80-012.

The REMP results are presented in Table 5.1.

This table contains the following infonmation:

r I

Sample:

the type of the sample medium

==

Description:==

the type of measurement LLD:

the a criori lower limit of detection l

N:

the number of samples analyzed i

Low:

the lowest measured value i its associated 2a counting error Average:

the average value i the standard deviation of N

[

samples High:

the highest measured value its associated 20 counting error i

Units:

the units of measurement

(

Additional information also is presented in Table 5.1.

Not all.

l of the recults in Table 5.1 are required by the PBNP radiological effluent technical specifications (RETS).

Non-RETS items and values are noted by an asterisk (*).

For certain analyses, an l

-l 9

t

i

!.i

-i 6

~l LLD which is lower than that required by RETS is used.

For these analyses, both LLDs are listed with the RETS LLD given in parentheses.. Occasionally, anomalous results are obtained which lie well outside of the range of expected values.

If, upon investigation, these values are found not to be the result of PBNP operations they will not be listed in the table.

'In this case, the highest reported value will be footnoted and the

~

omitted value discussed in the narrative portion of this section.

{

Blank. values have not been subtracted from the results presented j

in Table 5.1.

l t

5.2 Discussion l

l Radiological environmental monitoring conducted at the Point

[

Beach Nuclear Plant from July 1, 1992 through. December 31, 1992 j

consisted of air filters, milk, lake water, well water, soil, f

fish, shoreline sediments, algae, vegetation, and TLDs.

1 All TLD results for the reporting period were within the normal range. Although the third quarter value for site E-32 was above the average of the other sites, it was within the normal range.

This site had the highest result for three of the four quarters t

of 1992.

Results from two nearby sites were comparable to the j

remaining sites.

The reason for the higher values at E-32 is

}

unknown. Results will be tracked to see if a pattern develops.

[

i The analyses for individual radionuclides in environmental l

samples does not reveal any unexpected results.

Sr-90 and Cs-137 l

continue to persist in milk, water, sediment, fish, algae, and l

soil. These radionuclides routinely occur in environmental samples collected around the world.

The occurrence of these radionuclides in the environment is attributable to the large scale atmospheric weapons tests of the 1960's, less frequent l

testing in the 70's and 80's, and to the Chernobyl accident.

i Tritium concentrations continue to be low and are slightly lower than the first 6 months of 1992.

Two H-3 concentrations are not l

statistically different from zero.

Measured concentrations of other radionuclides occur as. positive

)

and negative values scattered.around zero. Although the positive values are usually smaller than their associated error, small, non-zero values-(below the associated LLDs) occur for Ba-La-140 t

in milk (1 of 18 samples), I-131 in water (3 of 30 samples), and l

Co-60 and Mn-54 in water (each 1 of 30 samples).

However, the values are comparable to the values obtained for " blanks" so that

?

there would be no statistical difference from zero if blank i

values were subtracted. Therefore, these results appear to be attributable to statistical variations.

Three of the four l

filamentous algae samples had small amounts of Co-60 and/or Cr-134, both of which were discharged from PBNP during this reporting period. This result is not surprising because these

[

algae are known to have high bicaccumulation factors for Cs and Co: Cs-137, +1000; Co-60, 250-2800 (NCRP 76).

One of the Co-60 results may be due to statistical fluctuations. However, two e

October results probably are real because they are associated with Cs-137 concentrations (0.100 and 0.071 Pci/g) about 2 times greater than the August samples.

Furthermore, in the sample l

with the highest Cs-137, the Cs-134 value, 0.54 pCi/g, is six standard deviations greater than zero.

The highest October i

result for algae occurs at a site 1.6 miles N of PBNP where the predominant current direction is from N to S.

Pursuant to Technical Specification 15.7.7.D, a visual verification of animals grazing in the vicinity of the Point

[

10 i

2 e

_.........~

_m 4

o Beach Nuclear Plant site boundary was completed on July 28.,

1992,

}

to ensure that milk sampling locations remain as conservative as.

i practicable. No significant change in.the use of pasture lands.

was noted, The existing milk sampling program conducted at PBNP continues to be acceptable.

l i

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TABLE 5.1 RADIOLOGICAL EtWIRONMENTAL MONITORING RESULTS i

Sample Description LI,D

?!

Low Avera.ge Hioh Units TLD Environmental Radiation

(*)

54 0.55 0.05 0.88 i 0.19 1.36 0.09 mR/7 days Air Gross beta 0.01 156 0.005 1 0.003 0.021 1 0.009 0.050 1 0.005 pCi/m' Cs-137 0.01(0.06) 12 0.000710.0006 0.000410.0007 0.002210.0021

. pcl/m' Cs-134 0.05 12

-0.001010.0011

-0.000210.0003 0.000110.0012 pCi/m' I-131 0.03(0.07) 156

-0.014 1 0.013 0.000 1 0.005 0.011 1 0.017 pCi/m3 Other gamma emitters (*)

0.1 ( * )

12 0 000610.0010

-0.000010.0007 0.000810.0007 pCi/m'-

Milk I-131 0.5 18

-0.1010.17 0.06 1 0.10 0.23 1 0.26 pCi/1 Sr-89 (*)

5(*)

18

-1.4 1 1.2 0.01 1 0.55 1.3 1 1.7 pCi/1 Sr-90 (* )

1(*)

10 0.6 1 0.4 1.57 0.39 2.1 1 0.5 pCi/1 Cs-134 5(15) 18

-1.3 1 2.0 0.18 i 0.61 0.9 i 2. 0 pC1/1 Cs-137 5(18) 18

-0.4 1 2.0 0.99 i 1.01 3.0 1 2.1 pC1/1 i

Ba-La-140 5(15) 18

-4.4 1 2.2

-0.73 1 1.74 2.5 2.4

.pCi/1 Other gamma emitters (*)

15 ( * )

18

-1.4 1 2.6 0.87 t 1.44 4.6 3.4 pCi/1 Lake water Gross beta 4

30 1.6 1 0.6 2.61 1 0.77 4.8 1 0.6 pCi/1 I-131 0.5 (2 )

30

-0.2110.24 0.06 1 0.14 0.41 1 0.31 pCi/1 Mn-54 10(15) 30

-1.6 1 2.7 0.38 1 1.08 3.112.7 pCi/1.

Fe 59 30 30

-8.7 i 8.9

-0.56 3.21 5.4 1 5.8 pCi/1:

Co-58 10 30

-2.3 i 3.3

-0.10 1.21 2.0 1 3.3 pCi/1 Co-60 10 30

-1.5 i 1.7 0.47 i 1.35 4.0 1.3.5

'pC1/1 Zn-65 30 30

-7.5 i 6.1

-0.97 2.81 6.1 1 6.3 pCi/1 Zr-Nb-95 15 30

-7.3 1 4.4

-0.18 2.94 6.1 1 6.6 pC1/1 Cs-134 10(15) 30

-7.5 1 2.1

-0.74 i 1.56 1.9.1 2.4 pCi/1 -

Cs-137 10(18) 30

-0.5 1 2.6 1.35 1 0.95 3.6 i 2.2

.pci/1 Ba-La-140 15 30

-9.7 1 11.7

-0.96 i 3.18 3.1 1 5.9 pCi/1.

Other gamma emitters (*)

- 30 (*)

30

-5.2 1 2.9

-0.76 i 1.59 1.7 1 3.4 pCi/1 H-3 500(3000)

.10

'3 1 88 113 i 54.5' 171 1 88 pCi/1 Sr-89 (*)

5 (*)

10

-0.7 1 1.2 0.22 1 0.49 0.7 1 0.9 pCi/1

+

Sr-90(*)

1(*)

10 0.4 1 0.3 1.00 1 1.07 1.1 0.4 pCi/1 I

Algae Gross beta 0.25 3'

2.22 i O.21 4.52 i 2.44 7.08 1 0.92 pCi/g Co-58 0.25 4

• 0.00010.042 0.001 1 0.010 0.014 0.017 pCi/g Co-60 0.25 4

0.00110.025 0.018 1 0.018 0.042 i O.032 pCi/g Cs-134 0.25 4

-0.03310.030 0.010 1 0.037 0.054 1 0.016 pCi/g Cs-137 0.25 4

0.02410.021 0.061 1 0.032 0.100 1 0.017

-pCi/g 3

4 12

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l 6.0 NONRADICACTIVE CHEMICAL RELEASES l

1 6.1 Scheduled Chemical Vaste Releases Scheduled chemical waste releases to the circulating water system

(

from July 1, 1992, to December.31, 1992, included 5.20E+06

[

gallons of neutralized wastewater. The wastewater contained 6.47E+02 pounds of suspended solids and 4.14E405 pounds of dissolved solids.

Lj Scheduled chemical waste releases are based on the average l

analytical results obtained from sampling a representative i

number of neutralizing tanks.

i 6.2 Miscellaneous Chemical Waste Releases Miscellaneous chemical waste releases from the retention pond (based on effluent analyses) to the circulating water for July 1, 1992, to December 31, 1992, included 1.52E+07 gallons of clarified wastewater. The wastewater contained 1.69E+03 pounds

-l of suspended solids.

j Miscellaneous chemical waste released directly to the l

circulating water, based on amount of chemicals used for July 1, 1992, to December 31, 1992, included 9.28E+04 pounds of sodium bisulfite and 4.02E+04 pounds of sodium hypochlorite.

t 7.0 CIRCULATING WATER SYSTEM OPERATION l

The circulating water system operation during this reporting period for l

periods of plant operation is described in Table 7-1.

TABLE 7-1 i

CIRCULATING WATER SYSTEM OPERATION July 1, 1992'to December 31, 1992 j

?

_JU_L AUG

$_E_P O_,gT NOV DEC i

Average Volume Cooling U1 489.6 489.6 490.7 504.0*

498.6*

420.8 3

Water Discharge i

442.4*

420.8.

l (Million gal / day)**

U2 489.6 489.6 455.7*

l Average Cooling Water U1 59 57 49 56 44 39 intake Temperature

}

(Degrees F)

U2 59 57 49*

42*

39 a

Average Cooling Water U1 78 76 68 68 63 61 l

Discharge Temperature i

(Degrees F)

U2 78 76 66*

56*

60 4

Average Ambient Lake f

Temperature I

(Degrees F) 58 56 47 49 42 37 i

i

(* Unit 2 refueling shutdown from September 26, 1992 to November 18, 1992)

L

^

(**For days with cooling water discharge flow) l 5

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14 I

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.1 8.0 LEAK TESTING OF RADIOACTIVE SIERQ.ES E

During this reporting period, all applicable sealed radioactive sources were leak tested in accordance with Technical Specification 15.4.12.

Leak test results were all <0.005 Ci.

9.0 MISCELIANEOUS REPORTING REOUIREMENTS 9.1 Revisions to the PBNP Office Dose Calculation Manual

( DCM) and O

Proctas Control Procram (PCP)

No revisions were made to the PCP during this reporting period.

The Environmental Manual, Revision 9, was issued in November. The revision consisted of the addition of five new TLD sites and minor administrative changes such as the incorporation of the new PBMP form numbering system. Revision 6 of the CDCM was approved in December and issued on January 1, 1993.

The ODCM changes were too extensive to detail herein. The main change is the elimination of equivalent curies and the incorporation of dose calculations to track compliance with emission limits.

Complete copies are being sent to the NRC under separate cover 9.2 Interlaboratory Comuarison Procram The analytical. laboratory contracted to perform the radicanalyses of the PBNP environmental samples participated in the EPA Interlaboratory Comparison Program during this reporting period.

9.3 Deviations f rom Specified Environmental Sample Tvoes. Locations, and Frecuencies Sample types, sampling locations, and collection frequencies complied with Technical Specification 15.7.7.A during this reporting period.

9.4 Summary of Unachievable Soecified Environmental LLDs All LLDs listed in Table 15.7.7-2 of the PBNP Technical Specifications achieved were during this sampling period.

9.5 Soecial Circumstances No special circumstances report regarding operation of the explosive gas-monitor for the waste gas holdup system was needed during this reporting period.

15

_ _ _ _ _ _