ML21111A180

From kanterella
Jump to navigation Jump to search
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)
v • d • e


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

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

TABLE 2 Big Rock Point Gaseous Effluent Releases January 1, 2020 to December 31, 2020 1ST 2ND A. FISSION AND ACTIVATION GASES Units QTR QTR

1. Total release Ci N/A N/A
2. Average release rate for oeriod uCi/sec N/A N/A
3. Percent of annual avo EC N/A N/A B. IODINES
1. Total iodine Ci N/A N/A
2. Averaoe release rate for oeriod uCi/sec N/A N/A
3. Percent of annual avo EC N/A N/A C. PARTICULATES
1. Particulates with half-life >8 dav Ci N/A N/A
2. Averaoe release rate for period uCi/sec N/A NIA
3. Percent of annual avo EC NIA NIA
4. Gross aloha radioactivitv Ci NIA N/A D TRITIUM
1. Total Release Ci N/A N/A
2. A veraoe release rate for period uCi/sec N/A N/A
3. Percent of annual ava EC N/A 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
2. Percent limit N/A N/A
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

4. Percent limit NIA NIA 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
2. Percent of limit (7.5 mremlauarterl N/A N/A Page 1 of 3 3RD 4TH Est Total QTR QTR Error%

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A NIA NIA NIA NIA NIA NIA N/A NIA NIA N/A NIA NIA NIA NIA NIA N/A N/A NIA NIA NIA N/A NIA N/A N/A N/A N/A N/A

1. FISSION GASES Krypton-85m Krypton-87 Krvpton-88 Xenon-133 Xenon-133m Xenon-135 Xenon-135m Xenon-138 Total for Period
2. IODINES lodine-131 lodine-132 lodine-133 lodine-134 lodine-135 Total for Period TABLE 2 Big Rock Point Gaseous Effluent Releases January 1, 2020 to December 31, 2020 Units 1STQTR 2NDQTR 3RDQTR Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Ci NIA NIA NIA Page 2 of 3 4TH QTR NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA
3. PARTICULATES*

Chromium-51 Manaanese-54 Cobalt-58 lron-59 Cobalt-60 Zinc-65 Silver-11 Om Cesium-134 Cesium-137 Barium-140 Europium-152 Strontium-89 Strontium-90 Net unidentified beta Total TABLE 2 Big Rock Point Gaseous Effluent Releases January 1, 2020 to December 31, 2020 Units 1STQTR 2NDQTR 3RDQTR Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A Ci N/A N/A N/A

  • Particulates with half-life >8 days Page 3 of 3 4TH QTR N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

TABLE 3 Big Rock Point Liquid Effluent Releases January 1, 2020 to December 31, 2020 A. FISSION AND ACTIVATION PRODUCTS Units 1STQTR 2NDQTR

1. Total release (not includino tritium, oases, alpha)

Ci N/A N/A

2. Average diluted concentration durino period uCi/ml N/A N/A
3. Percent of EC N/A N/A B. TRITIUM
1. Total release Ci N/A N/A
2. Averaoe diluted concentration durino period uCi/ml N/A N/A
3. Percent of EC N/A N/A C. DISSOLVED AND ENTRAINED GASES
1. Total release Ci NIA N/A
2. Average diluted concentration during period

µCi/ml N/A N/A

3. Percent of EC N/A N/A D. GROSS ALPHA RADIOACTIVITY Ci N/A N/A E. VOLUME OF WASTE RELEASED (Prior to dilution)

Liters N/A N/A F. VOLUME OF DILUTION WATER USED DURING PERIOD Liters N/A N/A G. MAXIMUM DOSE COMMITMENT WHOLEBODY mrem N/A N/A Percent of ODCM Section 1, 2.3.2 a (1.5 mrem)

N/A N/A H. MAXIMUM DOSE COMMITMENT - ORGAN Mrem N/A N/A Percent of ODCM Section 1, 2.3.2 b (3.0 mrem)

N/A N/A Page 1 of 2 Est Total 3RDQTR 4TH QTR Error%

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A NIA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

1. NUCLIDE$

RELEASED Chromium-51 Manganese 54 Cobalt-58 lron-59 Cobalt-60 Zinc-65 Strontium-89 Strontium-90 Molvbdenum-99 Silver-11 Om lodine-131 Cesium-134 Cesium-137 Antimonv-125 Tin-113 Net Unidentified Beta Fission & Activation Product Total Xenon-133 Tritium Grand Total TABLE 3 Big Rock Point Liquid Effluent Releases January 1, 2020 to December 31, 2020 Units 1STQTR 2NDQTR Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Ci Page 2 of 2 3RDQTR 4TH QTR

""

Retrieved from "https://kanterella.com/w/index.php?title=ML21111A180&oldid=3818381"