ML18221A486

Ltr. 08/09/18 Quad Cities Nuclear Power Station, Units 1 and 2 - Notification of an NRC Triennial Heat Sink Performance Inspection and Request for Information; Inspection Report 05000254/2018004; 05000265/2018004 (DRS-A.Dunlop)

ML18221A486
Person / Time
Site:	Palisades, Quad Cities
Issue date:	08/09/2018
From:	Dunlop A NRC/RGN-III/DRS/EB2
To:	Bryan Hanson Exelon Generation Co, Exelon Nuclear
References
IR 2018004
Download: ML18221A486 (8)

See also: IR 05000254/2018004

Text

August 9, 2018

Mr. Bryan C. Hanson

Senior VP, Exelon Generation Company, LLC

President and CNO, Exelon Nuclear

4300 Winfield Road

Warrenville, IL 60555

SUBJECT: QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2NOTIFICATION

OF AN NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION AND

REQUEST FOR INFORMATION; INSPECTION REPORT 05000254/2018004;

05000265/2018004

Dear Mr. Hanson:

On November 5, 2018, the U.S. Nuclear Regulatory Commission (NRC) will begin the onsite

portion of the Triennial Heat Sink Performance Inspection at your Quad Cities Nuclear Power

Station, Units 1 and 2. This inspection will be performed in accordance with NRC baseline

Inspection Procedure 71111.07.

In order to minimize the impact that the inspection has on the site and to ensure a productive

inspection, we have enclosed a request for documents needed for the inspection. The

documents have been divided into three groups.

The first group lists information necessary for our initial inspection scoping

activities. This information should be available to the lead inspector no later than

September 18, 2018. By September 28, 2018, the inspector will communicate the

initial selected set of approximately 2-3 risk significant heat exchangers.

The second group is needed to support our in-office preparation activities. This set of

documents, including the calculations associated with the selected heat exchangers,

should be available at the Regional Office no later than October 24, 2018. This

information should be separated for each selected component, especially if provided

electronically (e.g., folder with component name that includes calculations, condition

reports, maintenance history, etc.). During the in-office preparation activities, the

inspector may identify additional information needed to support the inspection.

The last group includes the additional information above as well as plant specific

reference material. This information should be available onsite to the inspector on

November 5, 2018. It is also requested that corrective action documents and/or

questions developed during the inspection be provided to the inspector as the

documents are generated.

B. Hanson -2-

All requested documents are to be for the time period from the onsite inspection period back

to the documents that were provided in response to the previous Heat Sink Performance

Inspection. If no activities were accomplished in that time period, then the request applies to the

last applicable document in the previous time period. It is important that these documents be as

complete as possible, in order to minimize the number of documents requested during the

preparation week or during the onsite inspection.

The lead inspector for this inspection is Andrew Dunlop. We understand that our licensing

contact for this inspection is Tom Peterson of your organization. If there are any questions

about the inspection or the material requested in the enclosure, please contact the lead

inspector at 630-829-9726 or via e-mail at Andrew.Dunlop@nrc.gov.

This letter does not contain new or amended information collection requirements subject

to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information

collection requirements were approved by the Office of Management and Budget, Control

Number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to

respond to, a request for information or an information collection requirement unless the

requesting document displays a currently valid Office of Management and Budget Control

Number.

This letter and its enclosure 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, Part 2.390, Public Inspections,

Exemptions, Requests for Withholding.

Sincerely,

/RA Nestor Feliz-Adorno Acting for/

Andrew Dunlop, Senior Reactor Engineer

Engineering Branch 2

Division of Reactor Safety

Docket Nos. 50-254; 50-265

License Nos. DPR-29; DPR-30

Enclosure:

Document Request for Triennial Heat Sink

Performance Inspection

cc: Distribution via LISTSERV

B. Hanson -3-

Letter to Bryan C. Hanson from Andrew Dunlop dated August 9, 2018

SUBJECT: QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2NOTIFICATION

OF AN NRC TRIENNIAL HEAT SINK PERFORMANCE INSPECTION AND

REQUEST FOR INFORMATION; INSPECTION REPORT 05000254/2018004;

05000265/2018004

DISTRIBUTION:

Jeremy Bowen

RidsNrrDorlLpl3

RidsNrrPMQuadCities Resource

RidsNrrDirsIrib Resource

Steven West

Darrell Roberts

Richard Skokowski

Allan Barker

DRPIII

DRSIII

ADAMS Accession Number ML: 18221A486

OFFICE RIII RIII RIII RIII

NAME ADunlop:cl

DATE 08/09/18

OFFICIAL RECORD COPY

DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION

Inspection Report: 05000254/2018004; 05000265/2018004

Inspection Dates: November 5, 2018, through November 9, 2018

Inspection Procedure: IP 71111.07, Heat Sink Performance

Inspectors: Andrew Dunlop, Lead Michael Jones

630-829-9726 630-829-9745

Andrew.Dunlop@nrc.gov Michael.Jones@nrc.gov

I. Information Requested By September 18, 2018

1. List of the Generic Letter (GL) 89-13, Service Water System Problems Affecting

Safety-Related Equipment, heat exchangers in order of risk significance.

2. Copy of heat exchanger performance trending data tracked for each GL 89-13

heat exchanger.

3. List of Corrective Action Program documents (with a short description)

associated with GL 89-13 heat exchangers, heat sinks, silting, corrosion,

fouling, or heat exchanger testing, from May 1, 2015, to present.

4. Copy of any self-assessment done on any of GL 89-13 heat exchangers.

5. Last two System Health Report(s) and maintenance rule system notebooks for all

the GL 89-13 heat exchangers.

6. List of engineering-related operator workarounds (with a short description)

associated with GL 89-13 heat exchangers, from May 1, 2015, to present.

7. List of permanent and temporary modifications (with a short description)

associated with GL 89-13 heat exchangers, from May 1, 2015, to present.

II. Information Requested By October 24, 2018

1. Copies of the GL 89-13 responses.

2. Copy of the Updated Final Safety Analysis Report (UFSAR) section applicable to

the GL 89-13 Heat Exchanger Program.

3. Copies of procedures developed to implement the recommendations of GL 89-13

(e.g., the GL 89-13 Heat Exchanger Program description).

4. Copies of the selected Corrective Action Program documents.

Enclosure

DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION

5. For the specific heat exchangers selected:

a. Copies of the UFSAR sections applicable for each heat exchanger.

b. Copy of system description and design basis document for the heat

exchangers (as applicable).

c. Provide a list of calculations (with a short description) which currently

apply to each heat exchanger.

i. establish the limiting design basis heat load required to be

removed by each of these heat exchangers;

ii. demonstrate the heat exchangers capacity to remove the

limiting heat load;

iii. correlate surveillance testing and/or inspection results from

these heat exchangers with design basis heat removal

capability (e.g., basis for surveillance test and/or inspection

acceptance criteria);

iv. evaluate the potential for water hammer in each heat

exchanger or associated piping; and

v. evaluate excessive tube vibration in each heat exchanger.

d. Copy of any operability determinations or other documentation of

degradation associated with the heat exchangers or the systems that

support the operation for the selected heat exchangers.

e. Copy of the construction code, Design Specification, heat exchanger data

sheets, and vendor documents including component drawings applicable

for the heat exchangers.

f. Copies of normal, abnormal, and emergency operating procedures

associated with the selected heat exchangers.

6. For the ultimate heat sink (UHS) and the safety-related service water system

(or equivalent):

a. Copies of the applicable UFSAR sections.

b. Copy of system description and design basis document (as applicable).

c. Copy of any operability determinations or other documentation of

degradation associated with the UHS and the safety-related service

water system.

d. Copy of the document (e.g., UFSAR or Technical Requirements Manual)

that states the maximum cooling water system inlet temperature limit that

still allows full licensed power operation of the nuclear reactor.

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DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION

e. Copy of system description and design basis document (as applicable).

f. Copy of the construction code and Design Specification.

g. Copies of normal, abnormal, and emergency operating procedures

associated with the UHS and safety-related service water systems

including procedures for loss of these systems.

h. Copies of corrective action documents associated with waterhammer or

hydraulic transients in the service water system, from May 1, 2015, to

present.

i. If available, provide an electronic copy of piping and instrumentation

diagrams for the service water system, including the intake structure.

j. Provide a list of calculations (with a short description), which currently

apply to UHS and safety-related service water system.

k. Provide a list of instruments (with a short description) associated with

automatic or alarm functions for the safety-related service water system

and/or UHS.

l. Provide a list of any design change (with a short description) performed

on the UHS or safety-related service water system, from May 1, 2015, to

present.

7. A schedule of all inspections, cleanings, maintenance, or testing of any

safety-related plant heat exchanger to be performed during the onsite portion

of the inspection.

III. Information Requested to be Available on First Day of Inspection,

November 5, 2018

1. For the specific heat exchangers selected.

a. Copy of the calculation which correlates surveillance testing results

from these heat exchangers with design basis heat removal capability

(e.g., basis for surveillance test acceptance criteria).

b. Copies of the two most recent completed tests and evaluation data

confirming thermal performance for those heat exchangers which are

performance tested.

c. Documentation and procedures that identify the types, accuracy, and

location of any special instrumentation used for the two most recently

completed thermal performance tests for the heat exchangers (e.g.,

high accuracy ultrasonic flow instruments or temperature instruments).

Include calibration records for the instruments used during these tests.

d. Information regarding any alarms which monitor on-line performance.

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DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION

e. Copy of the document describing the last two inspection results of each

heat exchanger.

f. The cleaning and inspection maintenance schedule for each heat

exchanger for the next 5 years.

g. Copy of the design specification and heat exchanger data sheets for each

heat exchanger.

h. Copy of the vendor manuals including component drawings for each heat

exchanger.

i. Copy of the calculation which establishes the limiting (maximum) design

basis heat load which is required to be removed by each of these heat

exchangers.

j. Copy of the operating procedure that ensures that the maximum cooling

water system inlet temperature limit is not exceeded.

k. Copy of the calculations or documents which evaluate the potential for

water hammer in each heat exchanger or associated piping.

l. Copy of the calculations that evaluate excessive tube vibration in each

heat exchanger and the documents that describe the controls that prevent

heat exchanger degradation due to excessive flow induced vibration

during operation.

m. Copy of the last two periodic flow testing at or near maximum design flow.

n. Copy of the document which identifies the current number of tubes in

service for each heat exchanger and the supporting calculation which

establishes the maximum number of tubes which can be plugged in each

heat exchanger.

o. Copy of the document establishing the repair criteria (plugging limit) for

degraded tubes which are identified in each heat exchanger.

p. Copies of the documents that verify the structural integrity of the heat

exchanger (e.g., eddy current summary sheets, ultrasonic testing results,

and visual inspection results).

q. Copies of those documents that describe the methods taken to control

water chemistry in the heat exchangers.

2. For the UHS

a. Copies of the inspection procedures for the verification of the structural

integrity of underwater UHS and the associated results for the last two

inspections.

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DOCUMENT REQUEST FOR TRIENNIAL HEAT SINK PERFORMANCE INSPECTION

b. Copies of the maintenance and/or inspection procedures for underwater

UHS sediment intrusion and the associated last two inspections results

including underwater diving inspections and/or sediment removal

activities.

c. Copies of calculations and surveillances that determine the UHS reservoir

capacity and heat transfer capability.

d. Copies of surveillance procedures and last two test results performed on

the instrumentation relied upon to determine UHS reservoir capability.

3. For the review of the operation of the safety-related service water system

(or equivalent) and the UHS

a. Copies of any design change performed on the UHS, from May 1, 2015,

to present.

b. Copies of any design change performed on the safety-related service

water system, from May 1, 2015, to present.

c. Copies of procedures for a loss of UHS.

d. Copies of procedures for a loss of service water system.

e. The last two inspections and/or maintenance related to preventing

macrofouling (e.g., silt, dead mussel shells, or debris) and biotic fouling

(e.g., fish, algae, grass, or kelp).

f. Copies of documents associated with the monitoring of pump

performance for potential strong-pump vs. weak-pump interaction.

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