IR 05000335/2020003
| ML20304A326 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 10/30/2020 |
| From: | Randy Musser NRC/RGN-II |
| To: | Moul D Florida Power & Light Co |
| References | |
| IR 2020003 | |
| Download: ML20304A326 (9) | |
Text
October 30, 2020
SUBJECT:
ST. LUCIE UNITS 1 & 2 - INTEGRATED INSPECTION REPORT 05000335/2020003 AND 05000389/2020003
Dear Mr. Moul:
On September 30, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at St. Lucie Units 1 & 2. On October 19, 2020, the NRC inspectors discussed the results of this inspection with Mr. Dan DeBoer, Site Vice President, and other members of your staff. The results of this inspection are documented in the enclosed report.
No findings or violations of more than minor significance were identified during this inspection.
This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Sincerely,
/RA/
Randall A. Musser, Chief Reactor Projects Branch 3 Division of Reactor Projects
Docket Nos. 05000335 and 05000389 License Nos. DPR-67 and NPF-16
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000335 and 05000389
License Numbers:
Report Numbers:
05000335/2020003 and 05000389/2020003
Enterprise Identifier: I-2020-003-0054
Licensee:
Florida Power & Light Company
Facility:
St. Lucie Units 1 & 2
Location:
Jensen Beach, FL 34957
Inspection Dates:
July 01, 2020 to September 30, 2020
Inspectors:
T. Morrissey, Senior Resident Inspector
S. Roberts, Resident Inspector
Approved By:
Randall A. Musser, Chief
Reactor Projects Branch 3
Division of Reactor Projects
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees
performance by conducting an integrated inspection at St. Lucie Units 1 & 2, in accordance with
the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for
overseeing the safe operation of commercial nuclear power reactors. Refer to
https://www.nrc.gov/reactors/operating/oversight.html for more information.
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
PLANT STATUS
Unit 1 began the inspection period at rated thermal power (RTP). On July 29, 2020, power was
lowered to approximately 81 percent RTP to support planned turbine valve testing and
maintenance. On July 31, 2020, Unit 1 was returned to RTP. On September 18, 2020, power
was rapidly lowered to approximately 50 percent RTP after a digital electric-hydraulic leak
developed on the intercept valve for the 1A moisture separator reheater. The leak was
repaired, and Unit 1 was returned to RTP on September 20, 2020. Unit 1 remained at RTP for
the remainder of the inspection period.
Unit 2 operated at or near RTP for the entire inspection period.
INSPECTION SCOPES
Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in
effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with
their attached revision histories are located on the public website at http://www.nrc.gov/reading-
rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared
complete when the IP requirements most appropriate to the inspection activity were met
consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection
Program - Operations Phase. The inspectors reviewed selected procedures and records,
observed activities, and interviewed personnel to assess licensee performance and compliance
with Commission rules and regulations, license conditions, site procedures, and standards.
Starting on March 20, 2020, in response to the National Emergency declared by the President
of the United States on the public health risks of the coronavirus (COVID-19), resident and
regional inspectors were directed to begin telework and to remotely access licensee information
using available technology. During this time the resident inspectors performed periodic site
visits each week, increasing the amount of time on site as local COVID-19 conditions permitted.
As part of their onsite activities, resident inspectors conducted plant status activities as
described in IMC 2515, Appendix D; observed risk significant activities; and completed on site
portions of IPs. In addition, resident and regional baseline inspections were evaluated to
determine if all or portion of the objectives and requirements stated in the IP could be performed
remotely. If the inspections could be performed remotely, they were conducted per the
applicable IP. In some cases, portions of an IP were completed remotely and on site. The
inspections documented below met the objectives and requirements for completion of the IP.
REACTOR SAFETY
71111.01 - Adverse Weather Protection
Impending Severe Weather Sample (IP Section 03.02) (1 Sample)
(1)
The inspectors evaluated licensee readiness for impending adverse weather
conditions due to Hurricane Isaias approaching the site on July 30-August 2, 2020.
The site was under a hurricane warning; however, hurricane and tropical storm force
winds were not experienced on site.
71111.04 - Equipment Alignment
Partial Walkdown Sample (IP Section 03.01) (2 Samples)
The inspectors evaluated system configurations during partial walkdowns of the following
systems/trains:
(1)
Unit 2, 2B emergency diesel generator (EDG) while the 2A EDG was out of service
(OOS) for a planned critical maintenance management (CMM) outage, on
July 7-11, 2020
(2)
Unit 1, 1B EDG and 1B3, 4,160-volt (V) engineered safeguards (ES) switch gear
while 1A EDG was OOS for a planned CMM outage on August 4-6, 2020
71111.05 - Fire Protection
Fire Area Walkdown and Inspection Sample (IP Section 03.01) (4 Samples)
The inspectors evaluated the implementation of the fire protection program by conducting a
walkdown and performing a review to verify program compliance, equipment functionality,
material condition, and operational readiness of the following fire areas:
(1)
Unit 2, 2B EDG room, on July 8, 2020
(2)
Unit 1, fuel handling building 19.5-foot (ft) elevation, on July 15, 2020
(3)
Unit 2, high pressure safety injection (HPSI) and containment spray (CS) pump area,
on August 23, 2020
(4)
Unit 1, 1B EDG room, on August 31, 2020
71111.06 - Flood Protection Measures
Inspection Activities - Internal Flooding (IP Section 03.01) (1 Sample)
The inspectors evaluated internal flooding mitigation protections in the:
(1)
Unit 2, 2A HPSI pump, 2A low pressure safety injection (LPSI) pump, and 2A CS
pump, flood area, on September 10, 2020
71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance
Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01) (1 Sample)
(1)
Unit 1, The inspectors observed and evaluated licensed operator performance in the
control room during a down power to 81 percent RTP to support turbine valve testing
and 4B feedwater heater level control repairs, on July 29, 2020
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
(1)
On August 24, 2020, the inspectors observed a licensed operator requalification
training evaluation on the control room simulator.
71111.12 - Maintenance Effectiveness
Maintenance Effectiveness (IP Section 03.01) (3 Samples)
The inspectors evaluated the effectiveness of maintenance to ensure the following
structures, systems, and components (SSCs) remain capable of performing their intended
function:
(1)
Action Request (AR) 2357368, Unit 1 electrical equipment room fan damper failed
closed
(2)
Unit 1, intake cooling water (ICW) system health report
(3)
Unit 2, safety injection (SI) system health report
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (3 Samples)
The inspectors evaluated the accuracy and completeness of risk assessments for the
following planned and emergent work activities to ensure configuration changes and
appropriate work controls were addressed;
(1)
Unit 2, elevated risk while 2A EDG was OOS for a planned CMM outage, from
July 7-11, 2020
(2)
Unit 1, elevated risk while 1A EDG was OOS for a planned CMM outage, from
August 4-6, 2020
(3)
Unit 1, elevated risk while 1A LPSI was OOS for planned maintenance and 1A EDG
was OOS for planned surveillance testing, on August 31, 2020
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (6 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the
following operability determinations and functionality assessments:
(1)
AR 2363584, Unit 2, upper and lower grippers engaged on numerous rod control
element assemblies (CEAs), on August 13, 2020
(2)
AR 2363094, Unit 1, 1B LPSI pump casing vent valve, (V3674), seat leakage, on
August 12, 2020
(3)
AR 2365678, Unit 1, B ICW header pipe, (CW-90) has an area below minimum wall
thickness, on August 27, 2020
(4)
AR 2366911, Unit 1, oil leakage from 1C charging pump, on September 3, 2020
(5)
AR 2369432, Unit 2, reactor protection system (RPS) reactor coolant low flow
channel trip (failed relay), on September 29, 2020
(6)
AR 2368474, Unit 1, component cooling water (CCW) valve, (MV-14-2), has corroded
torque tube base, on September 24, 2020
71111.19 - Post-Maintenance Testing
Post-Maintenance Test Sample (IP Section 03.01) (4 Samples)
The inspectors evaluated the following post maintenance test activities to verify system
operability and functionality:
(1)
Unit 2, Work Order (WO), 40724034, 2A EDG CMM outage, July 7-11, 2020
(2)
Unit 1, WO 40724032, 1A EDG CMM outage, August 4-6, 2020
(3)
Unit 2, WO 40640995, 2B LPSI pump SF-6 Breaker preventative maintenance,
August 17, 2020
(4)
Unit 1, WO 40714125, repack 1A charging pump, September 30, 2020
71111.22 - Surveillance Testing
The inspectors evaluated the following surveillance tests:
Surveillance Tests (other) (IP Section 03.01) (3 Samples)
(1)
Unit 2, 2-OSP-69.24, "Engineered Safeguards Relay Test Train A," on July 10, 2020
(2)
Unit 1, 1-OSP-22.04, "Unit 1 Semi Annual Turbine Valve Test," on July 29, 2020
(3)
Unit 1, 1-SMI-69.02, "Engineered Safeguards Actuation System - Channel Functional
Test," on August 10, 2020
Inservice Testing (IP Section 03.01) (2 Samples)
(1)
Unit 2, 2-OSP-09.01C, "2C Auxiliary Feedwater Pump Code Run," on August 6, 2020
(2)
Unit 2, 2-OSP-03.06B, "2B Low Pressure Safety Injection Pump Code Run," on
August 17, 2020
71114.06 - Drill Evaluation
Select Emergency Preparedness Drills and/or Training for Observation (IP Section 03.01) (1
Sample)
NOTE: The sample below was erroneously entered as a sample in integrated inspection
report 2020-002, ADAMS Accession No. (ML20212L728). This error was administrative in
nature. Therefore, inspection report 2020-002 was not amended to address the error.
The sample was removed and annotated from inspection report 2020-002 within the NRC's
reactor program system (RPS) inspection tracking system and correctly applied to this
report.
(1)
On July 21, 2020 the inspectors evaluated an emergency response drill that included
a loss of off-site power (LOOP), loss of the 2A EDG, and a cyber-attack on station
computers.
OTHER ACTIVITIES - BASELINE
71151 - Performance Indicator Verification
The inspectors verified licensee performance indicators submittals listed below:
MS05: Safety System Functional Failures (SSFFs) Sample (IP Section 02.04) (2 Samples)
(1)
Unit 1, Safety System Functional Failures from July 1, 2019, through June 30, 2020
(2)
Unit 2, Safety System Functional Failures from July 1, 2019, through June 30, 2020
INSPECTION RESULTS
No findings were identified.
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On October 19, 2020, the inspectors presented the integrated inspection results to
Mr. Dan DeBoer, Site Vice President, and other members of the licensee staff.