ML20072P102

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Semiannual Monitoring Rept Jan-June 1994
ML20072P102
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 06/30/1994
From:
WISCONSIN ELECTRIC POWER CO.
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NUDOCS 9409070098
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I WISCONSIN ELECTRIC SEMIANNUAL MONITORING REPORT JANUARY 1994 through JUNE 1994 POWER COMPANY  !

I I POINT BEACH NUCLEAR PLANT I UNIT NOS.1 AND 2 I

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I U.S. Nuclear Regulatory Commission Docket Nos. 50-266 and 50-301 Facility Operating License Nos.

I DPR-24 and DPR-27

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PREFACE This Semiannual Monitoring Report for the period of January 1,1994, through June 30,1994, is subrnitted 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 i DPR-27, respectively.

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TABLE OF CONTENTS Section Title Eang 1.0 Radioactive Liquid Releases 1 I 2.0 Radioactive Airborne Releases 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 13 7.0 Circulating Water System Operation 13 8.0 Leak Testing of Radioactive Sources 14 I 9.0 Miscellaneous Reporting Requirements 14 I

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SEMIANNUAL MONITORING REPORT January 1, 1994 to June 30, 1994 1.0 RADIOACTIVE LIOUID RELEASES The total radioactive liquid release, excluding tritium for this reporting period, was 8.56E-02 curies. This included 1.72E-03 curies in processed radioactive waste and primary coolant system letdown, 5.41E-04 curies in Unit 1 steam generator blowdown, 8.32E-02 curies in Unit 2 steam generator blowdown, and no detectable release in the retention pond effluent.

The total tritium release for this reporting period was 2.52E+02 curies.

This included 2.46E+02 curies in processed radioactive waste and primary coolant system letdown, 1.87E-03 curies in Unit 1 steam generator blowdown, 4.79E+00 curies in Unit 2 steam generator blowdown and 1.12E+00 curies in I retention pond effluent.

1.1 Circulatinct Water Radionuclide Release Summary 1.1.1 Releases During Current Reporting Period Radioactive liquid releases via the circulating water discharge are sununarized by individual source and total curie I released on a monthly basis and presented in Table 1-1. Table 1-1 also contains the comparison between the annual Appendix I dose limits for liquid effluent and the corresponding highest doses calculated according to the ODCM using the semiannual I isotopic composition of the liquid discharge shown in Table 1-2. With the decrease in gamma-emitters relative to tritium in liquid effluents, the highest whole-body dose shifted from the adult to the infant and the highest organ dose from the I teen liver to the infant thyroid. Tritium accounts for almost 100% of the infant whole body dose and 76% of the thyroid dose. Note that doses are calculated for the maximum exposed individual (MEI) and as such represents an individual with I reasonable population deviations from the average for the general in the vicinity around PBNP.

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 July 1, 1993, through December 31, 1993.

6-MONTl!

NOV DE_q TOTAL Total Activity Released (Ci)

Gross Alpha 4.3E-07 <MDA 1.1E-06 Strontium 1.7E-05 <MDA 1.0E-04 I Average Diluted Discharge Concentration (pCi/cc)

Gross Alpha 7.9E-15 cMDA Strontium 3.2E-13 <MDA 1

TABLE 1-1 ISOTOPIC COMPOSITION OF CIRCULATING WATER DISCHARGE JANUARY 1, 1994 THROUGH JUNE 30, 1994 JAN FEB MAR APR MAY JUN TOTAL Total Activity Released (Ci)

Gamma Scan 1.12E-02 9.19E-03 1.70E-02 1.42E-02 1.67E-02 1.73E-02 8.56E-02 Gross Alpha 5.4 E-08 1.4 E-07 2.7 E-06 (MDA <MDA (1) (1)

Tritium 7.50E+00 8.71E+01 3.23E+01 4.22E+01 4.54E+01 3.77E+01 2.52E+02 Strontium 3.1 E-05 <MDA 5.0 E-07 1.2 E-06 3.6 E-07 (1) (1)

Total Volumes Released (Gal) i Processed Waste 1.58E+04 1.86E+05 6.96E+04 2.72E+05 6.82E+04 3.92E+04 6.51E+05 (U1) Steam Generator Blowdown 3.56E+06 3.84E+06 3.53E+06 6.35E+05 4.96E+06 3.76E+06 2.03E+07 (U2) Steam Generator Blowdown 3.53E+06 3.32E+06 3.73E+06 3.41E+06 3.55E+06 3.40E+06 2.09E+07 Retention Pond 2.71E+06 2.65E+06 3.17E+06 3.18E+06 3.68E+06 2.74E+06 1.81E+07 Total 9.82E+06 1.00E+07 1.05E+07 7.50E+06 1.23E+07 9.94E+06 6.00E+07 Volume of Dilution Water (Gal) 8.75E+09 7.90E+09 8.75E+09 1.20E+10 1.42E+10 1.47E+10 6.63E+10 Average Diluted Discharge Concentration (pCi/cc)

Gross Gamma 3.39E-10 3.07E-10 5.13E-10 3.11E-10 3.10E-10 3.11E-10 Gross Alpha 1.6 E-15 4.7 E-15 8.1 E-14 <MDA (MDA (1)

Tritium 2.26E-07 2.91E-06 9.75E-07 9.26E-07 8.45E-07 6.77E-07 Strontium 5.1 E-13 <MDA 1.5 E-14 2.6 E-14 6.7 E-15 (1)

Maximum Discharge Concentration During Release Period (pCi/cc)

Gross Gamma 6.79E-10 7.14E-10 8.57E-10 1.19E-09 7.10E-10 7.91E-10 Tritium 1.85E-05 4.40E-05 3.80E-05 3.42E-05 3.94E-05 3.57E-05 Comparison of liquid effluent January-June January-December doses to annual Appendix I Highest Total Highest Total dose limits Annual Limit Calculated Dose Calculated Dose (mrem) (mrem) (mrem) 6 (whole body) 1.97E-03 (infant) (2) 20 (any organ) 2.59E-03 (infant thyroid) (2)

(1) Information unavailable at time of report preparation. (2) Calculated in next report.

Note: Dissolved noble gases detected in liquid effluents are included in airborne release totals 2

I!E M M M M m M m M M M M M M M M M E

TABLE 1-2 ISOTOPIC COMPOSITION OF CIRCULATING WATER DISCHARGES JANUARY 1, 1994 THROUGH JUNE 30, 1994 NUCLIDES JAN FEB MAR APR MAY JUN TOTAL RELEASED (Curies) (Curies) (Curies) (Curies) (Curies) (Curies) (Curies)

Tritium 7.50E+00 8.71E+01 3.23E+01 4.22E+01 4.54E+01 3.77E+01 2.52E+02 I-131 <MDA <MDA 8.10E-04 1.24E-04 5.22E-04 3.26E-04 1.78E-03 I-132 1.03E-04 4.61E-04 3.43E-04 2.44E-04 4.00E-04 2.28E-04 1.78E-03 I-133 2,44E-03 1.94E-03 2.65E-03 2.66E-03 4.71E-03 3.71E-03 1.81E-02 I-135 (MDA <MDA 7.35E-04 5.48E-04 <MDA 7.34E-04 2.02E-03 F-18 8.42E-03 6.60E-03 1.23E-02 9.54E-03 1.07E-02 1.18E-02 5.94E-02 Mn-56 <MDA <MDA (MDA 1.25E-04 (MDA <MDA 1.25E-04 Co-57 <MDA <MDA 7.01E-05 2.91E-06 1.11E-04 <MDA 1.84E-04 Co-58 5.95E-06 <MDA <MDA 4.21E-05 1.34E-05 4.96E-06 6.64E-05 Co-60 1.03E-05 1.80E-05 1.36E-05 2.67E-04 7.17E-05 <MDA 3.81E-04 Sr-92 <MDA <MDA 8.67E-06 <MDA (MDA (MDA 8.67E-06 Zr-97 <MDA 6.24E-06 <MDA <MDA <MDA <MDA 6.24E-06 Tc-101 <MDA <MDA <MDA <MDA (MDA 2.74E-04 2.74E-04 Ag-110m 1.75E-04 1.62E-04 9.73E-05 6.19E-04 1.15E-04 2.37E-05 1.19E-03 Sb-124 6.51E-05 <MDA <MDA <MDA <MDA <MDA 6.51E-05

<MDA <MDA <MDA 1.51E-05 <MDA <MDA 1.51E-05 Cs-134m Cs-137 <MDA 6.62E-06 6.64E-06 2.36E-05 5.39E-06 1.44E-04 1.86E-04 Sr-85 <MDA <MDA (MDA <MDA <MDA (1) (1)

Sr-90 3.1 E-05 <MDA 5.0 E-07 1.2 E-06 3.6 E-07 (1) (1)

(1) Information unavailable at time of report preparation.

Note: Dissolved noble gases detected in liquid effluents are included in airborne release totals.  !

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U 1.2 Isotonic Composition of Circulatino Water Discharoes Ill 1.2.1 Releases During Current Reporting Period The isotopic composition of circulating water discharges during the current reporting period is presented in i Table 1-2.

1.2.2 Additions to Previous Semiannual Monitoring Report The following information was not available at the time of report preparation ano should be added to Table 1-2 of the Semiannual Monitoring Report for July 1, 1993, through December 31, 1993.

6-MONTH NOV p_E_C TOTAL Sr-89 (Ci) (MDA <MDA 5.2E-06 Sr-90 (Ci) 1.7E-05 <MDA 8.8E-05 1.3 Subsoil Drain System Releases of Tritium 1.3.1 Releases During Current Reporting Period E The releases of tritium via the subsoil drain system during the current reporting period is presented in l Table 1-3. W TABLE 1-3 SUBSOIL SYSTEM DRAINS - TRITIUM

SUMMARY

Janua q 1, 1994, through June 30, 1994 First Ouarter E-1 S.-l E -j_ S-10 Totalc H-3 (pCi/cc) No Sample <MDA No Sample <MDA Ave. Flow (gpd) No Flow 1.26E+03 No Flow 1.39E+04 Second Ouarter H-3 (pCi/cc) <MDA (MDA <MDA <MDA Ave. Flow (gpd) 6.49E+03 1.83E+03 3.35E+02 1.16E+04 Semiannual Totals Total Released (Ci) <MDA <MDA <MDA (MDA (MDA Total Flow (gals) 5.91E+05 2.80E+05 3.05E+04 2.30E+06 3.20E+06 I

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I 1.4 Land Acolication of Sewaoe Sludoe The Wisconsin Department of Natural Resources has approved the land-application of sewage sludges on various Wicconsin Electric I Power Company properties surrounding the Point Beach Nuclear Plant. These sewage sludges, which may contain trace amounts of radionuclides, are applied in accordance with methodologies j

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approved on January 13, 1988, pursuant to 10 CFR 20.302. The I

1 amounts discharged in the sewage during this reporting period are I presented in Table 1-4.  !

TABLE l-4 I SEWAGE SLUDGE LAND APPLICATIONS January 1, 1994, through June 30, 1994 Date of Aeolication Gallons Site Activity Released (Ci)

March 15, 1994 8,200 PB-02 <MDA 4 2.0 RADIOACTIVE AIRBORNE RELEASES The release paths contributing to radioactive airborne release totals I during this reporting period were the auxiliary building vent stack, drumming area vent stack, gas stripper building vent stack, Unit 1 containment purge stack, Unit 2 containment purge stack, combined air ejector decay duct exhaust, and turbine building ventilation exhaust.

'E 1here was one gas decay tank released during this reporting period.

2.1 Padioactive Airborne Release Summary 2.1.1 Release During Current Reporting Period Radioactivity released in airborne effluent for the I current reporting period are summarized in Table 2-1.

Table 2-1 also contains the comparison of the annual Appendix I dose limits for atmospheric effluents to the highest organ dose and the noble gas doses calculated for the MEI using ODCM methodology and the isotopic I composition of atmospheric releases identified in Table 2-2.

2.1.2 Additions to Previous Semiannual Monitoring Report The following information was not available at the time of the last report preparation and should be added to .

Table 2-1 of the Semiannual Monitoring Report for I July 1, 1993, through December 31, 1993.

6-MONTH QCT NOV DEC TOTAL {

Strontium (Ci) <MDA <MDA (MDA <MDA 2.2 Isotocic Airborne Releases )

2.2.1 Releases During Current Reporting Period

'I The monthly isotopic airborne releases for the current reporting period are presented in Table 2-2.

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TABLE 2-1 RADIOACTIVE AIRBORNE RELEASE SUOiARY JANUARY 1, 1994, THROUGH JUNE 30, 1994 JAN FEB MAR APR MAY JUN TOTAL Total Ncble Gases (Ci); (1) 4.56E-01 6.71E-01 1.93E-01 5.70E-01 6.74E-01 1.84E-01 2.75E+00 Total Radiciodines (Ci) : 4.79E-06 8.94E-07 3.73E-07 3.11E-05 9.10E-06 1.08E-09 4.63E-05 Total Particulates (Ci) : 2.29E-05 2.06E-05 5.94E-05 6.77E-05 1.96E-04 4.65E-05 4.13E-04 Alpha (Ci) : 4.04E-06 1.19E-05 3.17E-05 2.47E-05 8.94E-05 4.47E-05 2.06E-04 Strontium (Ci) : <MDA <MDA <MDA (2) (2) (2) (2)

All Others (Ci) - 1.89E-05 8.70E-06 2.77E-05 4.30E-05 1.07E-04 1.80E-06 2.07E-04 Total Tritium (Ci). 1.03E+01 7.24E+00 6.99E+00 1.02E+01 8.45E+00 4.00E+00 4.72E+01 Maximum Hourly Average Release Rate (Curies /Second) 4.41E-05 8.30E-06 6.39E-07 2.67E-05 1.06E-05 4.70E-07 Comparison of effluent doses to Appendix I limita January-June January-December Catecorv Annual Dose Limit Calculated Dose Calculated Dose l

particulate 30 mrem / organ 6.21E-03 (child liver) (3) noble gas 40 mrad ($ air) 3.77E-04 (3) noble gas 20 mrad (y air dose) 7.84E-04 (3) noble gas 30 mrem (skin) 5.22E-04 (3) noble gas 10 mrem (whole body) 9.10E-04 (3) l (1) Includes noble gas contribution from liquid releases.

(2) Information unavailable at time of report preparation, but values typically do not alter monthly totals.

(3) Will be calculated for the next semiannual report.

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E E E E E Eg

m m m m m m m m m M M M M M M M M TABLE 2-2 RADIOACTIVE AIRBORNE RELEASE

SUMMARY

JANUARY 1, 1994 THROUGH JUNE 30, 1994 NUCLIDES JAN FEB MAR APR MA'I JUN TOTAL RELEASED (Curies) (Curies) (Curies) (Curies) (Curies) (Curies) (Curies)

Tritium 1.03E+01 7.24E+00 6.99E+00 1.02E+00 8.45E+00 4.00E+00 4.72E+01 Xe-133 4.37E-02 5.69E-02 3.69E-03 9.71E-04 8.86E-02 2.59E-02 2.20E-01 Kr-85m 6.76E-03 8.43E-03 1.47E-03 1.73E-03 1.17E-02 1.08E-03 3.12E-02 Kr-88 1.90E-02 2.25E-02 3.29E-03 4.11E-03 2.97E-02 2.65E-03 8.13E-02 Xe-133m <MDA 1.25E-03 4.94E-05 6.66E-04 2.39E-03 1.07E-04 4.46E-03 Xe-135 3.99E-02 4.90E-02 6.51E-03 1.65E-02 6.96E-02 6.24E-03 1.88E-01 Xe-138 7.69E-02 9.47E-02 1.32E-02 1.66E-02 1.29E-01 1.15E-02 3.42E-01 Kr-87 1.64E-02 2.08E-02 3.04E-03 3.71E-03 2.79E-02 2.40E-03 7.43E-02 Xe-135m 2.37E-02 3.02E-02 4.86E-03 7.03E-03 4.00E-02 4.97E-03 1.11E-01 Ar-41 2.30E-01 2.95E-01 1.57E-01 6.81E-02 2.75E-01 1.29E-01 1.15E+00 Kr-85 <MDA 9.21E-02 <MDA <MDA <MDA <MDA 9.21E-02 Xe-131m <MDA <MDA <MDA 4.51E-01 (MDA <MDA 4.51E-01 I-131 3.28E-08 7.71E-09 3.73E-07 2.53E-06 1.52E-06 1.08E-09 4.46E-06 I-132 (MDA <MDA <MDA 2.64E-05 1.75E-G6 <MDA 2.82E-05 I-133 4.75E-06 8.65E-07 <MDA 2.17E-06 5.83E-06 <MDA 1.36E-05 I-135 8.37E-09 2.07E-08 <MDA (MDA <MDA <MDA 2.91E-08 F-18 1.82E-05 <MDA <MDA 7.17E-06 1.89E-05 3.46E-10 4.43E-05 Co-60 <MDA 4.47E-06 <MDA <MDA <MDA (MDA 4.47E-06 Br-82 <MDA 1.01E-09 <MDA <MDA 9.20E-10 1.32E-09 3.25E-09 Rb-88 (MDA (MDA <MDA <MDA 8.85E-06 1.52E-08 8.87E-06 Nb-95 <MDA <MDA (MDA 2.57E-07 <MDA <MDA 2.57E-07 Ag-110M <MDA 4.03E-06 <MDA <MDA <MDA <MDA 4.03E-06 Cs-134m <MDA 5.30E-09 <MDA <MDA <MDA <MDA 5.30E-09 Cs-137 6.77E-07 <MDA 3.96E-07 <MDA (MDA 1.55E-07 1.23E-06 Cs-138 <MDA 1.24E-07 <MDA <MDA 3.50E-07 3.44E-09 4.77E-07 Sr-89 <MDA <MDA <MDA (1) (1) (1) (1)

Sr-90 <MDA <MDA <MDA (1) (1) (1) (1)

Alpha 4.04E-06 1.19E-05 3.17E-05 2.47E-05 8.94E-05 4.47E-05 2.06E-04 (1) Information unavailable at time of report preparation, but values typically do not alter monthly totals reported in Table 2-1.

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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 l Table 2-2 of the Semiannual Monitoring Report, covering g the period July 1, 1993, through December 31, 1993.

6-MONTH 3 QCI NOV DEC TOTALS g Sr-89 (Ci) (MDA <MDA eMDA cMDA Sr-90 (Ci) (MDA <MDA <MDA <MDA 3.0 PADIOACTIVE SOLID WASTE SHIPMENTS Solid wastes shipped for burial during this reporting period were as follows:

DATE OF SHIPMENT VOLUME TOTAL ACTIVITY TO BURIAL 1 CUBIC FEET) (Curies) BURIAL SITE 3/09/94 20.10 (1) 3.95E-01 Barnwell, SC 3/22/94 25.10 (1) 5.98E-01 Barnwell, SC 3/24/94 6,20 (1) 1.32E-01 Barnwell, SC 3/24/94 7.10 (1) 1.22E-01 Barnwell, SC 3/24/94 5.10 (1) 6.00E-03 Barnwell, SC 3/24/94 37.80 (1) 1.04E-01 Ba rnwell, SC 3/29/94 23.30 (1) 5.68E-01 Barnwell, SC 3/30/94 12.00 (1) 2.78E-01 Barnwell, SC 3/31/94 24.60 (1) 4.34E-01 Barnwell, SC 3/31/94 20.40 (1) 4.17E-01 Bainwell, SC 3/31/94 13.70 (1) 3.70E-02 Barnwell, SC 4/04/94 4.10 (1) 1.00E-05 Barnwell, SC l 4/08/94 2.10 (1) 8.90E-04 Barnwell, SC E 4/15/94 5.60 (1) 1.00E-05 Barnwell, SC 4/21/94 22.50 (2,3) 1.15E-02 Barnwell, SC 4/22/94 7.60 (1) 8.00E-05 Barnwell, SC l 4/23/94 11.40 (1) 3.09E-03 Barnwell, SC 3 4/25/94 3.51 (1) 3.75E-03 Barnwell, SC 4/25/94 6.40 (1) 7.00E-05 Barnwell, SC 4/26/94 10.33 (2,3) 6.11E-03 Barnwell, SC 4/28/94 14.26 (1) 7.55E-03 Barnwell, SC 4/29/94 18.48 (1) 9.43E-03 Barnwell, SC 5/02/94 7.51 (1) 2.27E-03 Barnwell, SC 5/06/94 7.50 (1) 1.20E-04 Barnwell, SC 5/06/94 7.50 (1, 2, 3 ) 2.55E-03 Barnwell, SC 5/10/94 40.10 (1) 8.00E-05 Barnwell, SC 5/11/94 58.90 (1) 1.22E-02 Barnwell, SC 5/12/94 90.00 (4) 2.35E+00 Barnwell, SC 3 5/18/94 120.30 (5) 2.71E+02 Barnwell, SC Barnwell, SC g

5/19/94 88.57 (1,2,3) 2.29E-01 Barnwell, SC 5/20/94 32.90 (1) 6.56E-03 5/24/94 16.30 (1) 1.00E-05 Barnwell, SC 5/24/94 26.20 (1) 6.10E-03 Barnwell, SC 5/25/94 83.40 (1) 5.69E+00 Barnwell, SC 5/27/94 7.80 (1) 1.00E-05 Barnwell, SC i 5/31/94 1.50 (1) 4.45E-03 Barnwell, SC l 6/01/94 46.00 (1) 7.00E-05 Barnwell, SC (

6/03/94 9.30 (1) 4.50E-04 Barnwell, SC E l '

6/07/94 17.40 (1) 1.35E-03 Barnwell, SC 6/07/94 10.90 (1) 2.00E-05 Barnwell, SC 6/08/94 5.70 (1) 0.00E+00 Barnwell, SC 6/08/94 54.70 (1) 8.00E-05 Barnwell, SC 5 ,

6/15/94 23.10 (2,3) 1.05E-02 Barnwell, SC j 6/15/94 13.40 (1,2,3) 4.50E-04 Barnwell, SC 6/15/94 17.70 (1) 2.00E-05 Barnwell, SC lj l 6/17/94 10.70 (1) 1.00E-05 Barnwell, SC E!

6/18/94 95.00 (1, 2, 3 ) 1.44E-02 Barnwell, SC 8

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DATE OF SHIPMENT VOLUME TOTAL ACTIVITY TO BURIAL (CUBIC FEET) (Curies) BURIAL SITE I 6/23/94 6/23/94 6/23/94 12.30 (1, 2, 3 )

45.00 (1,2,3) 48.00 (1,2,3) 207.40 (4) 3.39E-02 1.75E-02 1.45E-01 1.37E+00 Barnwell, Barnwell, Barnwell, Barnwell, SC SC SC SC 6/23/94 Barnwell, SC 6/23/94 2.40 (1) 1.00E-05 11.50 (1) 2.31E-03 Barnwell, SC 6/24/94 Barnwell, SC 6/24/94 207.40 (4) 1.43E+00 6/27/94 415.00 (1,2,3) 9.81E-02 Barnwell, SC TOTAL 2145.06 2.82E+02 (1) Dry Active Waste (2) Scrap Metal (3) Asbestos t

(4) Evaporator Concentrates l (5) Bead Resin 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 1. The new fuel assemblies received for Unit 1 were used for the Spring 1994

'I refueling.

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There were no spent fuel shipments made from Point Beach Nuclear Plant  !

during this reporting period.  !

5.0 RADIOLOGICAL 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 I 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 follows that recommended in Health Physics Society Committee

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I 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 information:

Sample: the type of the sample medium

Description:

the type of measurement LLD: the a criori lower limit of detection I N:

Low:

the number of samples analyzed the lowest measured value i its associated 2a counting error Average: the average value i the standard deviation of N i I High:

samples the highest measured value i its associated 2e counting error Units: the units of measurement Additional information also is presented in Table 5.1. Not all of the results 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 I 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 I e

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 g in Table 5.1.

5.2 Discussion Radiological environmental monitoring conducted at the Point Beach Nuclear Plant from January 1, 1994 through June 30, 1994 consisted of air, milk, lake water, well water, soil, fish, shoreline sediments, algae, vegetation, and TLDs.

All TLD results for the reporting period were within the normal range. The TLD at Site E-12, located on the discharge flume pier, was missing at the time of collection at the end of both quarters. Therefore, this TLD location has been moved to an area on the pier that is within the fence.

The analyses for individual radionuclides in environmental samples does not reveal any unexpected results. Sr-90 continues to persist in milk and water. Cs-137 continues in sediment, fish, algae, vegetation, and 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 testing in the 70's and 80's, and to the Chernobyl accident. Except for the first quarter results from the discharge flume E-12, tritium concentrations are in the range of 150 - 350 pCi/l which is not much higher than the blank values (73 i 99 to 148 1 101 pCi/1). The first quarter high value of 5021 pCi/l at E-12 is a composite of monthly samples which are composites of weekly samples. Analysis of the individual monthly samples revealed that February had the highest concentration, about 14,000 pCi/1, because two of the weekly sampling times coincided with tank discharges. The results from January and March were about 140 i 100 pCi/l or comparable to blank values.

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, one small, non-zero value (below the associated LLDs) whose 12e error does not overlap zero occurs for Cs-134 in one fish sample.

However, the value is comparable to the blank value and therefore a statistical artifact.

5.3 Land Use Census The annual requirement of Technical Specification 15.7.7.D, for a visual verification of animals grazing in the vicinity of the Point Beach Nuclear Plant site boundary is accomplished in August of each year. Therefore, results will be reported in the next Semiannual Monitoring Report.

5.4 Correction to Previous Report No corrections are necessary to the environmental section of the g previous report.

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M M M M M M M M M M M M M M TABLE 5.1 RADIOLOGICAL ENVIRONMENTAL MONITORING RESULTS Sample Description LLD N Low Average High Units TLD Environmental Radiation (*) 52 0.71 0.02 0.94 0.10 1.26 0.03 mR/7 days Air Gross beta 0.01 156 0.005 1 0.002 0.022 1 0.009 0.051 1 0.006 pCi/m' Cs-137 0.01(0.06) 12 -0.0012 0.0009 -0.0000 0.0005 0.0006 0.0007 pCi/m' Cs-134 0.05 12 -0.0005i0.0010 -0.0001 0.0003 0.000410.0006 pCi/m' I-131 0.03(0.07) 156 -0.043 0.040 -0.006 i 0.010 0.041 1 0.045 pCi/m' Other g=ma emitte rs ( * ) 0.1 ( * ) 12 -0.0014 0.0011 0.0002 0.0008 0.0019 0.0019 pCi/m' Milk I-131 0.5 18 -0.16 0.14 0.05 1 0.13 0.29 i 0.29 pCi/1 Sr-89 (*) 5 (*) 18 -1.2 0.8 -0.2 1 0.5 0.6 i 0.8 pCi/1 Sr-90 (*) 1(*) 18 0.7 1 0.3 1.4 1 0.4 2.1 1 0.6 pCi/1 Cs-134 5(15) 18 -1.3 1 2.0 0.2 1 1.0 2.8 i 2.8 pCi/1 Cs-137 5(18) 18 -2.0 3.4 0.1 1.0 1.7 1 2.0 pCi/1 Ba-La-140 5(15) 18 -2.5 1 2.6 -0.2 i 1.1 1.3 1 2.0 pCi/1 Other gamma emitters (*) 15 ( * ) 18 -1.3 3.2 0.7 1.4 4.0 6.9 pCi/1 Gross beta 4 26 1.6 0.5 2.4 1 0.7 4.7 i 0.7 pCi/1 Lake water pCi/1 I-131 0.5 (2) 26 -0.3410.15 0.07 i 0.11 - 0.22 1 0.25 Mn-54 10(15) 26 -2.8 i 5.4 0.2 i 1.1 -2.4 2.6 pCi/1 Fe-59 30 26 -5.1 6.5 -0.0 1 2.3 4.5 1 4.5 pCi/1 Co-58 10 26 -2.6 5.6 -0.1 1 1.0 1.5 i 1.9 pCi/1 Co-60 10 26 -3.5 4.2 0.7 i 1.7 4.8 i 4.8 pCi/1 Zn-65 30 26 -10.0 i 10.0 -1.4 1 3.4 3.8 i 4.7 pCi/1 Zr-Nb-95 15 26 -2.6 i 7.9 0.3 i 1.7 4.4 i 5.9 pCi/1 Cs-134 10(15) 26 -3.5 i 3.1 0.5 i 1.8 3.5 1 4.4 pCi/1 Cs-137 10(18) 26 -3.7 6.1 0.5 i 1.7 3.8 i 4.6 pCi/1 Ba-La-140 15 26 -7.3 i 14.8 -0.5 1 2.7 6.1 7.8 pCi/1 Other gamma emitters (*) 30 (*) 26 -3.0 4.8 -0.5 i 1.5 2.4 i 10.3 pCi/1 H-3 500(3000) 10 149 i 84 716 t 1510 5021 220 pCi/1 Sr-89 (*) 5 (*) 10 -1.0 1 0.9 -0.1 0.4 0.6 1 0.7 pCi/1 Sr-90(*) 1(*) 10 0.2 0.3 3.6 t 0.2 0.9 0.4 pCi/1 Algae Gross beta 0.25 2 3.04 0.18 3.32 1 0.39 3.59 0.14 pCi/g Co-58 0.25 2 0.00110.013 0.001 1 0.000 0.001 1 0.009 pCi/g l Co-60 0.25 2 0.002 0.010 0.007 1 0.006 0.011 0.012 pCi/g Cs-134 0.25 2 0.00110.014 -0.002 1 0.001 0.003 1 0.009 pCi/g

! Cs-137 0.25 2 0.018 0.011 0.021 0.004 0.024 0.017 pCi/g l l

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Sample Description LLD N Low Average High Units Fish Gross beta (*) 0.5 (*) 4 1.68 i 0.06 2.86 1.10 3.80 1 0.13 pCi/g Mn-54 0.13 4 -0.005 0.016 0.00110.005 0.006 0.012 pCi/g Fe-59 0.26 4 -0.014 0.028 -0.006 0.009 0.00210.038 pCi/g Co-58 0.13 4 0.008 0.013 -0.002 0.005 0.004 0.006 pCi/g Co-60 0.13 4 -0.001 0.003 0.010 0.010 0.022 0.025 - pCi/g Zn-65 0.26 4 -0.05910.035 -0.029 0.027 0.00410.017 pCi/g Cs-134 0.13 4 -0.007 0.015 -0.00120.008 0.011 0.006 pCi/g Cs-137 0.15 4 0.021 0.015 0.03410.014 0.052 0.013 pCi/g Other gamma emitters (*) 0.5 (*) 4 -0.006 0.003 -0.001 0.004 0.003 0.008 pCi/g Well water Gross beta 4 2 3.1 1.2 3.4 0.4 3.6 2 1.9 pCi/1 I-131 0.r (2) 2 -0.08 1 0.22 0.05 1 0.18 0.18 i 0.26 pCi/1 Mn-54 10(15) 2 0.7 1 2.2 0.8 0.1 0.8 1.8 pCi/1 Fe-59 30 2 -2.0 4.4 -1.9 0.2 -1.7 i 28.0 pCi/1 Co-58 10 2 -2.0 1 2.8 -0.9 1 1.6 0.2 2.0 pCi/1 Co-60 10 2 -0.9 1.7 -0.5 1 0.6 -0.1 0.1 pCi/1 Zn-65 30 2 -6.4 1 5.0 -5.3 1 1.6 -4.1 1 4.5 pCi/1 Zr-Nb-95 15 2 -0.5 1 3.4 -0.2 1 0.4 0.1 1 1.0 pCi/1 Cs-134 10(15) 2 -0.2 0.6 0.2 1 0.5 0.5 1 2.1 pCi/1 Cs-137 10(18) 2 0.7 2.2 1.3 0.8 1.8 1 2.4 pCi/1 Ba-La-140 15 2 -2.0 7.5 -1.4 0.8 -0.8 3.8 pCi/1 Other gamma emitters (*) 30 (*) 2 -1.4 0.7 -1.1 0.5 -0.7 1 2.8 pCi/1 H-3 500 2 -0.0 1 91.6 15.6 22.0 131.1 96.7 pCi/1 Sr-89 (*) 5(*) 2 0.05 1.0 0.29 1 0.34 0.53 1 0.64 pCi/1 Sr-90 (*) 1(*) 2 0.11 0.23 0.14 0.04 0.17 0.26 pCi/1 Soil (*) Gross beta 2 8 14.24 i 1.86 20.71 i 3.90 25.99 2.19 pCi/g Cs-137 0.15 8 0.25 0.03 0.54 0.31 1.10 0.04 pCi/g Shoreline Gross beta 2 5 3.7 1.7 4.3 0.6 5.2 1.7 pCi/g sediment ( * ) Cs-137 0.15 5 0.02 1 0.01 0.06 0.03 0.10 0.03 pCi/g Vegetation Gross beta (*) 0.25 (*) 8 4.2 0.1 5.9 1 1.8 9.9 0.3 pCi/g Cs-134 0.06 8 -0.01210.015 -0.003 0.005 0.006 1 0.008 pCi/g Cs-137 0.08 8 -0.001 0.009 0.004 1 0.004 0.009 i 0.005 pCi/g I-131 0.06 8 -0.008 0.009 -0.004 0.004 0.001 0.005 pCi/g 12 EE E E E E E -

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I 6.0 NONRN)IOACTIVE CHEMICAL RE' LEASES Scheduled Chemical Waste Rel_ggses*

6.1 Scheduled chemical waste releases to the circulating water system from January 1, 1994, to June 30, 1994, included 6.03E+06 gallons of neutralized wastewater. The wastewater contained 3.49E+02 pounds of suspended solids and 4.88E+05 pounds of dissolved solids.

  • Scheduled chemical waste releases are based on the average analytical results obtained from sampling a representative I 6.2 number of neutralizing tanks.

Miscellaneous Chemical Waste Releases

  • Miscellaneous chemical waste releases from the retention pond (based on effluent analyses) to the circulating water for January 1, 1994, to June 30, 1994, included 1.81E+07 gallons of j clarified wastewater. The wastewater contained 2.48E+03 pounds  !

I of suspended solids.

  • Miscellaneous chemical waste released directly to the circulating water, based on amount of chemicals used from I January 1, 1994, to June 30, 1994, included 4.50E+04 pounds of sodium bisulfite and 1.80E+04 pounds of sodium hypochlorite.

7.0 CIRCUIATING WATER SYSTEM OPERATION The circulating water system operation during this reporting period for periods of plant operation is described in Table 7-1.

TABLE 7-1 CIRCULATING WATER SYSTEM OPERATION January 1, 1994 to June 30, 1994 M FEB MAR APR MAY M Average Volume Cooling U1 282.2 282.2 282.2 216.9* 458.3 489.7 Water Discharge (Million gal / day) *

  • U2 282.2 282.2 282.2 401.3 490.4 486.8 Average Cooling Water U1 37 36 38 43* 47 51 Intake Temperature (Degrees F) U2 37 36 38 42 47 51 Average Cooling Water U1 69 68 69 53* 65 70 Discharge Temperature l (Degrees F) U2 73 70 70 66 68 72 l I Average Amb.ient Lake Temperature (Degrees F) 33 34 36 41 44 49

~

(* Unit I refueling shutdown from April 2, 94, to April 27, 1994) '

(<*For days with cooling water discharge bl *)

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8.0 LEAK TESTING OF RADIOACTIVE SOURCES ,

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 pCi.

9.0 MISCELLANEOUS REPORTING PEOUIPFMENTS 9.1 Revisions to the PBNP Office Dose Calculation Manual (ODCM) and Process Control Procram (PCP)

No revisions were made to either the Environmental Manual, the ODCM, or the PCP during this reporting period.

9.2 Interlaboratory Comoarison Procram The analytical laboratory contracted to perform the radioanalyses

=

of the PBNP environmental samples participated in the EPA Interlaboratory Comparison Program during this reporting period.

9.3 Deviations from Soecified Environmental Samole TVDes, Locations, and Frecuencies -

During this reporting period, the following deviations from the sampling frequency specified in Table 15.7.7-1 of the Technical Specifications occurred. W The TLD from site E-12, on the fence on the discharge flume pier, was missing at the end of both the first and second quarters of this reporting period. Beginning with the third quarter, the l

g location for this TLD has been moved inside the fenced in area.

No water samples were collected for sites E-01, -05, -06, and -09 during February because excessive buildup of shoreline ice made sample collection extremely hazardous. Technical Specification 15.7.7.A.2 recognizes hazardous conditions may preclude sample collection at the specified sampling frequency. Therefore, no corrective actions are necessary.

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

9.5 Special Circumstances  ;

No special circumstances report regarding operation of the

  • I explosive gas monitor for the waste gas holdup system was needed I during this reporting period.  !

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