ML22075A247
| ML22075A247 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 03/15/2022 |
| From: | Disabatino R Constellation Energy Generation |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML22075A247 (2) | |
Text
Technical Specification 2.4(a)
March 15, 2022 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Peach Bottom Atomic Power Station (PBAPS) Unit 1 Facility Operating License No. DPR-12 NRC Docket No. 50-171
Subject:
PBAPS Unit 1 Decommissioning Status Report - 2021 In accordance with Peach Bottom Atomic Power Station, Unit 1 Technical Specifications, the annual report is required to:
Describe the results of facility radiation surveys, Report the quantities of radioactive effluents released, Report the status of the facility and evaluate the performance of security and surveillance
- measures, And provide containment vessel accumulated water analyses, as applicable.
Radiation Surveys:
Radiological surveys are performed semi-annually in the exclusion area. There were no significant concerns detected. All surveys were less than the required 1 mR/hr in accessible areas. Additionally, all smearable contamination levels were less than 1000 dpm/100cm2 beta-gamma. The results of these surveys are available in the station records.
Quantities of Radioactive Effluents Released:
In 2021, there were no direct gaseous or liquid releases or discharges from Unit 1 to the environment.
Status of Facility and an Evaluation of the Performance of Security and Surveillance Measures:
The were no significant events involving Unit 1. All inspections were determined to be satisfactory with no major issues identified. The structural inspections performed in accessible areas showed no indication of significant corrosion, cracks, or structural integrity concerns. The water level present in the Spent Fuel Pool floor and around the Unit 1 Containment has continued to remain at low levels.
The unit remains in the SAFSTOR status of decommissioning. All exclusion area barriers as described in the Technical Specifications are maintained locked except when opened to provide
access and egress for inspections, surveys, or repairs. Exclusion area barriers have not degraded from previous reports.
Phase 3 of the water intrusion mitigation project will continue through 2022 with the engineering and planning portion of the project completed in 2021. This phase 3 will modify the stormwater drainage piping located beneath the roadway (northeast of the Unit 1 Containment) to be rerouted through new and existing drainage inlets to allow for adequate flow to the river. This roadway section will also be regraded to the new and existing drainage inlets to complete this project.
Monitoring wells for the Radioactive Groundwater Protection Program in the vicinity of Unit 1 remain at normal background levels. All tritium concentrations sampled and analyzed were below detectable level in wells MW-PB-8, MW-PB-10, MW-PB-15, and MW-PB-16.
Containment Vessel Accumulated Water Analyses:
A total of approximately 223 gallons of water accumulated in Peach Bottom Unit 1 Containment in 2021. Two inspections and removal of water occurred in May and November of 2021, collecting 98 and 125 gallons respectively. During each inspection, the accumulated water was less than the maximum allowable Technical Specification limit for water collection in containment, 500 gallons. The water was collected from the Containment Sump and the source of the water was attributed to groundwater in-leakage. The containment water contained only tritium, with concentrations of 1.906E-3 µCi/mL and 1.843E-03 µCi/mL, for May and November respectively. The tritiated water was removed and transferred to Units 2 & 3 for processing and release in a future year.
There are no regulatory commitments contained in this letter. If you have any questions, please contact Brandon DiZebba, Radiation Protection Programs Manager at 717-456-4690 or Amy Huber, Senior Regulatory Engineer at 717-456-3526.
Respectfully, Ronald J. DiSabatino, Jr.
Plant Manager (Acting)
Peach Bottom Atomic Power Station cc:
NRC Regional Administrator, Region I NRC Senior Resident Inspector Chief of Nuclear Safety Division, Commonwealth of Pennsylvania CCN 22-28