ML21111A180

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Annual Radioactive Effluent Release and Waste Disposal Report
ML21111A180
Person / Time
Site: Big Rock Point  File:Consumers Energy icon.png
Issue date: 04/21/2021
From:
Entergy Nuclear Operations
To:
Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
Shared Package
ML21111A177 List:
References
PNP 2021-015
Download: ML21111A180 (8)
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Text

ATTACHMENT 2 BIG ROCK POINT INDEPENDENT SPENT FUEL STORAGE INSTALLATION 2020 RADIOACTIVE EFFLUENT RELEASE REPORT This report provides information relating to radioactive effluent releases and solid radioactive waste disposal at Big Rock Point (BRP) for the year 2020. The report format is detailed in the BRP Offsite Dose Calculation Manual (ODCM). Effluent releases from BRP are controlled by the Defueled Technical Specifications and the ODCM requirements.

2020 Operating History On January 8, 2007, the Nuclear Regulatory Commission (NRC) approved release of the former BRP Nuclear Plant property for unrestricted use in accordance with the BRP License Termination Plan 1 . On April 11, 2007, the license for BRP, DPR-06, was transferred to Entergy Nuclear Operations, Inc.

During 2020, normal independent spent fuel storage installation (ISFSI) operations continued. There were no operational activities that generated any solid radioactive waste.

Liquid and gaseous effluent monitoring is no longer conducted as the former BRP nuclear plant property has been released from the license. Short-lived radionuclides, including iodines and noble gas, are neither expected nor reported.

1. Supplemental Information A. Batch Releases There were no batch releases of gaseous or liquid effluents during 2020. All batch releases of radioactive liquids as described in the ODCM ceased in 2004. Reference Table 1.

B. Abnormal Releases There were no abnormal releases from BRP during 2020.

C. Radioactive Effluent Monitoring Instrumentation BRP ODCM currently specifies required actions when less than the minimum numbers of radioactive effluent monitoring instrument channels are operable. The ODCM also specifies these actions be taken when installed effluent monitoring systems are removed from service for decommissioning.

All plant-installed liquid and gaseous radioactive effluent monitoring instrument channels have been permanently removed and dismantled.

1 Letter from the USNRC dated January 8, 2007, "Release of Land from Part 50 License for Unrestricted Use" Page 1 of 2

2. Gaseous Effluents Although there were no gaseous effluents released during 2020, Table 2 provides a summary of all gaseous radioactive effluent monitoring conducted during the reporting period as required by the ODCM.
3. Liquid Effluents There were no liquid effluent batch releases during 2020. Table 3 lists and summarizes liquid effluent releases in accordance with the ODCM.
4. Solid Waste There was no solid radioactive waste generated or shipped during 2020.
5. Summary of Radiological Impact on Man The ODCM specifies that the annual effluent release report provide potential dose calculatiReportons based on measured effluent to liquid and gaseous pathways, if estimates of dose exceed one millirem to an organ or total body of any individual or more than one person-rem to the population within 50 miles. During 2020, there were no releases. Therefore, no calculations were required.
6. Offsite Dose Calculation Manual The ODCM describes the radiological release requirements for the BRP site.

There were no revisions to the ODCM in 2020.

7. Process Control Program (PCP)

The Process Control Program (PCP) describes solid waste processing and disposal methods utilized at the BRP site. Changes to the fleet procedure governing the PCP have no effect on the BRP site in 2020.

Page 2 of 2

TABLE 1 Big Rock Point Batch Releases January 1, 2020 to December 31, 2020 A. GASEOUS Units 1ST QTR 2NDQTR 3RD QTR 4TH QTR Number of Releases NIA NIA NIA NIA Total Release Time Minutes NIA NIA NIA NIA Maximum Release Time Minutes NIA NIA NIA NIA Averaae Release Time Minutes NIA NIA NIA NIA Minimum Release Time Minutes NIA NIA NIA NIA B. LIQUID Units 1ST QTR 2NDQTR 3RD QTR 4TH QTR Number of Releases NIA NIA NIA NIA Total Release Time Minutes NIA NIA NIA NIA Maximum Release Time Minutes NIA NIA NIA NIA Averaae Release Time Minutes NIA NIA NIA NIA Minimum Release Time Minutes NIA NIA NIA NIA Page 1 of 1

TABLE 2 Big Rock Point Gaseous Effluent Releases January 1, 2020 to December 31, 2020 1ST 2ND 3RD 4TH Est Total A. FISSION AND ACTIVATION GASES Units QTR QTR QTR QTR Error%

1. Total release Ci N/A N/A N/A N/A
2. Average release rate for oeriod uCi/sec N/A N/A N/A N/A N/A
3. Percent of annual avo EC  % N/A N/A N/A N/A B. IODINES
1. Total iodine Ci N/A N/A N/A N/A
2. Averaoe release rate for oeriod uCi/sec N/A N/A N/A N/A N/A
3. Percent of annual avo EC  % N/A N/A N/A N/A C. PARTICULATES
1. Particulates with half-life >8 dav Ci N/A N/A NIA NIA
2. Averaoe release rate for period uCi/sec N/A NIA NIA NIA NIA
3. Percent of annual avo EC  % NIA NIA NIA N/A
4. Gross aloha radioactivitv Ci NIA N/A NIA NIA D TRITIUM
1. Total Release Ci N/A N/A N/A NIA
2. Averaoe release rate for period uCi/sec N/A N/A NIA NIA
3. Percent of annual ava EC  % N/A NIA NIA NIA E WHOLE BODY DOSE
1. Beta Air dose at Site Boundary due to Noble Gases (ODCM Section 1, 1.3.2 a (1) (2ll mrads NIA NIA N/A N/A
2. Percent limit  % N/A N/A NIA NIA
3. Gamma Air dose at Site Boundary due to Noble Gas (ODCM Section 1, 1.3.2 a (1 l (2)) mrads N/A NIA NIA N/A
4. Percent limit  % NIA NIA NIA N/A F. ORGAN DOSE (ODCM Section 1, 1.3.2b (1) (2ll
1. Maximum organ dose to public based on Critical Receptors (child bone) mrem N/A N/A N/A N/A
2. Percent of limit (7 .5 mremlauarterl  % N/A N/A N/A N/A Page 1 of 3

TABLE 2 Big Rock Point Gaseous Effluent Releases January 1, 2020 to December 31, 2020

1. FISSION GASES Units 1STQTR 2NDQTR 3RDQTR 4TH QTR Krypton-85m Ci NIA NIA NIA NIA Krypton-87 Ci NIA NIA NIA NIA Krvpton-88 Ci NIA NIA NIA NIA Xenon-133 Ci NIA NIA NIA NIA Xenon-133m Ci NIA NIA NIA NIA Xenon-135 Ci NIA NIA NIA NIA Xenon-135m Ci NIA NIA NIA NIA Xenon-138 Ci NIA NIA NIA NIA Total for Period Ci NIA NIA NIA NIA
2. IODINES lodine-131 Ci NIA NIA NIA NIA lodine-132 Ci NIA NIA NIA NIA lodine-133 Ci NIA NIA NIA NIA lodine-134 Ci NIA NIA NIA NIA lodine-135 Ci NIA NIA NIA NIA Total for Period Ci NIA NIA NIA NIA Page 2 of 3

TABLE 2 Big Rock Point Gaseous Effluent Releases January 1, 2020 to December 31, 2020

3. PARTICULATES* Units 1STQTR 2NDQTR 3RDQTR 4TH QTR Chromium-51 Ci N/A N/A N/A N/A Manaanese-54 Ci N/A N/A N/A N/A Cobalt-58 Ci N/A N/A N/A N/A lron-59 Ci N/A N/A N/A N/A Cobalt-60 Ci N/A N/A N/A N/A Zinc-65 Ci N/A N/A N/A N/A Silver-11 Om Ci N/A N/A N/A N/A Cesium-134 Ci N/A N/A N/A N/A Cesium-137 Ci N/A N/A N/A N/A Barium-140 Ci N/A N/A N/A N/A Europium-152 Ci N/A N/A N/A N/A Strontium-89 Ci N/A N/A N/A N/A Strontium-90 Ci N/A N/A N/A N/A Net unidentified beta Ci N/A N/A N/A N/A Total Ci N/A N/A N/A N/A
  • Particulates with half-life >8 days Page 3 of 3

TABLE 3 Big Rock Point Liquid Effluent Releases January 1, 2020 to December 31, 2020 Est Total A. FISSION AND ACTIVATION PRODUCTS Units 1STQTR 2NDQTR 3RDQTR 4TH QTR Error%

1. Total release (not includino tritium, oases, alpha) Ci N/A N/A N/A N/A N/A
2. Average diluted concentration durino period uCi/ml N/A N/A N/A N/A
3. Percent of EC  % N/A N/A N/A N/A B. TRITIUM
1. Total release Ci N/A N/A N/A N/A N/A
2. Averaoe diluted concentration durino period uCi/ml N/A N/A N/A N/A
3. Percent of EC  % N/A N/A N/A NIA C. DISSOLVED AND ENTRAINED GASES
1. Total release Ci NIA N/A N/A N/A N/A
2. Average diluted concentration during period µCi/ml N/A N/A N/A N/A
3. Percent of EC  % N/A N/A N/A N/A D. GROSS ALPHA RADIOACTIVITY Ci N/A N/A N/A N/A E. VOLUME OF WASTE RELEASED (Prior to dilution) Liters N/A N/A N/A N/A F. VOLUME OF DILUTION WATER USED DURING PERIOD Liters N/A N/A N/A N/A G. MAXIMUM DOSE COMMITMENT WHOLEBODY mrem N/A N/A N/A N/A Percent of ODCM Section 1, 2.3.2 a (1 .5 mrem)  % N/A N/A N/A N/A H. MAXIMUM DOSE COMMITMENT - ORGAN Mrem N/A N/A N/A N/A Percent of ODCM Section 1, 2.3.2 b (3.0 mrem)  % N/A N/A N/A N/A Page 1 of 2

TABLE 3 Big Rock Point Liquid Effluent Releases January 1, 2020 to December 31, 2020

1. NUCLIDE$

RELEASED Units 1STQTR 2NDQTR 3RDQTR 4TH QTR Chromium-51 Ci "" "" "" ""

Manganese 54 Ci "" "" "" ""

Cobalt-58 Ci "" "" "" ""

lron-59 Ci "" "" "" ""

Cobalt-60 Ci "" "" "" ""

Zinc-65 Ci "" "" "" ""

Strontium-89 Ci "" "" "" ""

Strontium-90 Ci "" "" "" ""

Molvbdenum-99 Ci "" "" "" ""

Silver-11 Om Ci "" "" "" ""

lodine-131 Ci "" "" "" ""

Cesium-134 Ci "" "" "" ""

Cesium-137 Ci "" "" "" ""

Antimonv-125 Ci "" "" "" ""

Tin-113 Ci "" "" "" ""

Net Unidentified Beta Ci "" "" "" ""

Fission & Activation Product Total Ci "" "" "" ""

Xenon-133 Ci "" " " - ""

Tritium Ci "" "" "" ""

Grand Total Ci "" "" "" ""

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