AEP-NRC-2021-66, 2020 Annual Radioactive Effluent Release Report Correction
| ML21321A112 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 11/17/2021 |
| From: | Scarpello M Indiana Michigan Power Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| AEP-NRC-2021-66 | |
| Download: ML21321A112 (4) | |
Text
=
INDIANA MICHIGAN POWER" A unit of American Electric Power November 17, 2021 Docket Nos.: 50-315 50-316 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Donald C. Cook Nuclear Plant Units 1 and 2 Indiana Michigan Power Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 lndianaMichiganPower.com AEP-NRC-2021-66 10 CFR 50.36a 2020 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT CORRECTION
References:
- 1. Letter from Michael K. Scarpello, Indiana Michigan Power Company (l&M), to U. S. Nuclear Regulatory Commission (NRC), "2020 Annual Radioactive Effluent Release Report," dated April 28, 2021, Agencywide Documents Access and Management System Accession (ADAMS)
No. ML211188086.
Indiana Michigan Power Company, the licensee for Donald C. Cook Nuclear Plant Units 1 and 2, is providing a correction to the 2020 Annual Radioactive Effluent Release Report (Reference 1 ), to include the "C14 (Annual) Curies" value that was inadvertently omitted, in the Enclosure to this letter. This om mission, located on page four ( 4) of the report, is corrected by replacement of the previously submitted page four ( 4) in its entirety with the Enclosure to this letter.
This letter contains no new or modified regulatory commitments. Should you have any questions, please contact me at (269) 466-2649.
Michael K. Scarpello Regulatory Affairs Director SJM/mll
Enclosure:
Donald C. Cook Nuclear Plant Units 1 and 2 - 2020 Annual Radioactive Effluent Release Report Correction
U. S. Nuclear Regulatory Commission Page 2 c:
R. J. Ancona - MPSC EGLE - RMD/RPS J. 8. Giessner-NRC, Region Ill NRC Resident Inspector R. M. Sistevaris - AEP Ft. Wayne, w/o enclosures J. E. Walcutt - AEP Ft. Wayne, w/o enclosures S. P. Wall - Washington, D.C.
A. J. Williamson - AEP Ft. Wayne, w/o enclosures AEP-NRC-2021-66
ENCLOSURE to AEP-NRC-2021-66 DONALD C. COOK NUCLEAR PLANT UNITS 1 AND 2 2020 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT CORRECTION The correction to the Donald C. Cook Nuclear Plant Units 1 and 2, 2020 Annual Radioactive Effluent Release Report, includes the "C14 (Annual) Curies" value. This page four ( 4) of the report, replaces the previously submitted page four (4) in its entirety.
Dose lmreml 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr l&P 1.73E-02 2.86E*02 3.95E-02 1.64E-02 Total Bodv Air 7.70E-05 2.60E-04 6.90E-04 2.00E-04 Skin 1.20E-04 4.10E-04 1.10E-03 3.30E-04 Liauid TB 3.84E-03 2.95E-02 4.0BE-02 1.46E-02 Liauld Oraan 3.84E-03 2.95E-02 4.08E-02 1.47E-02 Direct Radiation 0
0 0
0 Quarterlv Dose Total 2.52E-02 8.83E-02 1.23E-01 4.62E-02 Sum of Quarter Doses 2.83E-01 C14 lAnnuall Curies 20.16 C14 (Annual) Dose 2.33E+00 Grand Total Dose <Total Bodv or anv other Oraanl mrem 2.61E+OO Annual Dose Limit Cmrem) 25 Percent of limit 1.05E+01 The following data reflects a comparison between 2019 annual dose data and 2020 annual dose data. This indicates that 2020 annual dose was 'typical' in regards to radioactive effluents. The table is presented as follows:
Annual Dose fmreml
% of limit 2019 2.37E+00 9.49 2020 2.61E+00 10.5 VI.
RADIATION MONITORS INOPERABLE GREATER THAN 30 DAYS The Radiation Monitor System (RMS) has undergone an extensive replacement project to upgrade and modernize the equipment to support the expected operational lives of the two Cook Plant units. Three effluent monitors (and six area monitors for completeness) were inoperable entering 2020, with the Unit 1 Vent Stack l-VRS-1500 and Unit 2 ESW monitors 2-WRA-714/ 2-WRA-718 being all out for more than 30 days. The appropriate compensatory sampling actions were taken throughout the year as releases on these pathways continued. The monitors were being upgraded and modernized, and this inoperable time period> 30days was planned for/ expected due to having to install all the hardware, wiring backbone, network, and displays. The RMS replacement project did significant work in 2020, with the table below providing the details on when work was started (starting the 30 day clock) and when it was returned to service. All were greater than 30 days and all had appropriate compensatory sampling actions or surveys perfonned throughout the duration.
All effluent releases complied with ODCM requirements. The list includes some area radiation monitors which are not involved with effluent pathways, but are included for completeness. RMS Project work continued into 2020 and was completed on April 14, 2020, concluding the RMS Replacement Project. The table lists all monitors replaced and their times of inoperability.
4