ML103140314

2010/11/01 Watts Bar 2 OL - TVA Letter to NRC_10-29-10_WBN U2 FSAR 101

ML103140314
Person / Time
Site:	Watts Bar
Issue date:	11/01/2010
From:	- No Known Affiliation
To:	Division of Operating Reactor Licensing
References
Download: ML103140314 (23)

Text

WBN2Public Resource From: Boyd, Desiree L [dlboyd@tva.gov]

Sent: Monday, November 01, 2010 8:21 AM To: Wiebe, Joel; Poole, Justin; Raghavan, Rags; Milano, Patrick; Campbell, Stephen Cc: Crouch, William D; Boyd, Desiree L; Hamill, Carol L

Subject:

TVA letter to NRC_10-29-10_WBN U2 FSAR 101 Attachments: 10-29-10_WBN U2 FSAR A101_NRC Copy.pdf Please see attached letter that was sent to NRC today.

Thank You,

~*~*~*~*~*~*~*~*~*~*~*~*~*~*~

Désireé L. Boyd WBN 2 Licensing Support Sun Technical Services dlboyd@tva.gov 4233658764

~*~*~*~*~*~*~*~*~*~*~*~*~*~*~

1

Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 163 Mail Envelope Properties (7AB41F650F76BD44B5BCAB7C0CCABFAF177B1111)

Subject:

TVA letter to NRC_10-29-10_WBN U2 FSAR 101 Sent Date: 11/1/2010 8:20:58 AM Received Date: 11/1/2010 8:21:08 AM From: Boyd, Desiree L Created By: dlboyd@tva.gov Recipients:

"Crouch, William D" <wdcrouch@tva.gov>

Tracking Status: None "Boyd, Desiree L" <dlboyd@tva.gov>

Tracking Status: None "Hamill, Carol L" <clhamill@tva.gov>

Tracking Status: None "Wiebe, Joel" <Joel.Wiebe@nrc.gov>

Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov>

Tracking Status: None "Raghavan, Rags" <Rags.Raghavan@nrc.gov>

Tracking Status: None "Milano, Patrick" <Patrick.Milano@nrc.gov>

Tracking Status: None "Campbell, Stephen" <Stephen.Campbell@nrc.gov>

Tracking Status: None Post Office: TVANUCXVS2.main.tva.gov Files Size Date & Time MESSAGE 318 11/1/2010 8:21:08 AM 10-29-10_WBN U2 FSAR A101_NRC Copy.pdf 812593 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

Withhold from Public Disclosure Under 10 CFR 2.390 Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 October 29, 2010 10 CFR 50.4(b)(6) 10 CFR 50.34(b) 10 CFR 2.390(d)(1)

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 Docket No. 50-391

Subject:

WATTS BAR NUCLEAR PLANT (WBN) - UNIT 2 - FINAL SAFETY ANALYSIS REPORT (FSAR), AMENDMENT 101

References:

1. TVA letter to the NRC dated September 1, 2010, Watts Bar Nuclear Plant (WBN) - Unit 2 - Final Safety Analysis Report Amendment 100 2 TVA letter to the NRC dated October 21, 2010, Watts Bar Nuclear Plant (WBN) - Unit 2 - Final Safety Analysis Report (FSAR) Section 2.3 This letter transmits WBN Unit 2 FSAR Amendment 101 (A101), which reflects changes made since the issuance of Amendment 100 on September 1, 2010 (Reference 1). contains a summary listing of FSAR sections and corresponding Unit 2 change package numbers associated with the A101 FSAR changes. Most of these changes were the result of resolutions to Requests for Additional Information. Section 2.3 was provided in advance via Reference 2. However, some additional changes to this section were discussed in a telecon with the NRC on October 28, 2010. These changes have been incorporated and are being provided in FSAR A101.

FSAR A101 is contained on the enclosed Optical Storage Media (OSM #1) (Attachment 1). The FSAR contains security-related information identified by the designation Security-Related Information - Withhold Under 10 CFR 2.390. TVA hereby requests this information be withheld from public disclosure in accordance with the provisions of 10 CFR 2.390. A redacted version of the FSAR is contained on OSM #2 (Attachment 2), which is suitable for public disclosure. contains a listing of the FSAR pages that have been redacted. Enclosure 3 lists the files and file sizes on the security-related OSM (OSM #1), and Enclosure 4 lists the files and file sizes on the publicly available OSM (OSM #2). There are no new commitments contained in this letter.

U.S. Nuclear Regulatory Commission Page 3 October 29, 2010 cc (Enclosures)

U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, Tennessee 37381

U.S. Nuclear Regulatory Commission Page 4 October 29, 2010 bcc (Enclosures):

Stephen Campbell U.S. Nuclear Regulatory Commission MS 08H4A One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2738 Loren R. Plisco, Deputy Regional Administrator for Construction U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257

ENCLOSURE 1 WBN Unit 2 FSAR A101 Summary Listing of A101 FSAR Changes" Item Change Area Change Description Change Package Number No.

1. Delete references 25 and 26 in Section 4.2 of the U2 FSAR on pages 4.2-12 and 4.2-57.

1. Section 4.2.1 2-101-01

2. Delete references 25 and 26 in Section 4.2 of the U2 FSAR on page 4.2-3 and add references 31, 32, 33 and 35.

1. In U2 FSAR Section 4.3.3.2 (pg 4.3-39), change "PHOENIX-P employs a 42 energy group library derived mainly from the ENDF/B-VI files." to "PHOENIX-P employs a multi-group library derived

[57]"

mainly from the ENDF/B-VI files .

2. Section 4.3.3 2-101-02

2. In U2 FSAR references, add (57) Rose, P.F., "ENDF-201 ENDF/B-VI Summary Documentation,"BNL-NC8-17541 [ENDF-201] 4th Edition [ENDF-B-VI], October 1999 and Supplements.

1. Insert the following phrase at one location on pages 6.2.3-6, 6.2.3-10, 9.4-10, and 9.4-14 Likewise, a Loss of Coolant Accident (LOCA)/Safety Injection (SI) signal from the operating unit or high temperature in the Unit 1 or Unit 2 Auxiliary Building air intake will cause a CVI signal in the refueling unit.

2. Delete last sentence of first paragraph on page 6.2.3-6.

3. Insert the following phrase at one location on pages 6.2.3-11 and 9.4-11 from either the operating unit or refueling unit.

Section 6.2.3 Section 9.4.2

4. For Table 7.3-2, insert *** after High in Item 4b and add the Section 9.4.3

3. phrase: , SI signal from the operation unit or high temperature from 2-101-03 Section 9.4.5 the Unit 1 or Unit 2 Auxiliary Building air intake, after the word, Section 9.4.6 Monitors in the triple asterisk note at the bottom of table 7.3-2.

Table 7.3-2

5. Insert the phrase, operating or refueling unit at one location on page 9.4-11.

6. Insert the phrase, from the operating or the refueling unit, at one location on pages 9.4-13, 9.4-35, and 9.4-39.

7. Insert the phrase, or CVI signal from the operating unit at one location on page 9.4-42.

E1-1

ENCLOSURE 1 WBN Unit 2 FSAR A101 Summary Listing of A101 FSAR Changes" Item Change Area Change Description Change Package Number No.

1. For List of Tables, revise titles in list to agree with tables titles.

2. Revise Section 2.3.1.3 for following changes:

a. In the paragraph that begins with For z=2.8209, revise second sentence to correct the annual expectation of tornadoes with winds exceeding 113 mph from 2.69 x 10-4 per square mile to 3.77 x 10-4 per square mile and add the phrase (t=0.52, based on 28 tornadoes F2 and above for 54 years) to the end of the same sentence.

b. Add wind record information for Chattanooga and Knoxville, to paragraph that begins with Windstorms are relatively infrequent....

c. Add additional information regarding hail to paragraph beginning with During 1950-2009....

d. Add additional information regarding lightning strike densities to paragraph beginning with Annual lightning strike....

e. Expand/clarify information regarding snowfall records in paragraph beginning with Snowfall records for Chattanooga....

3. Revise Section 2.3.2.1, to add city of Decatur and to delete the last sentence of the first paragraph that begins with Data for Decatur,....

4. Revise Section 2.3.2.2 for the following changes:

a. Change for to from and delete second for and revise Reference 11 to dd in the first sentence of paragraph.

b. Modify first paragraph of section to clarify temperature data statements.

c. Modify second paragraph of section to clarify precipitation data statements.

d. In the seventh paragraph of section beginning with Wind direction..., revise Reference from 12 to ee.

8. Section 2.3 2-101-04

5. For Section 2.3.3.3, change December 1988 to December 1993 in two places in the first paragraph of section.

6. Revise the list of references for the following changes:

a. For Reference ff, delete Accessed May 12, 2010 at the end of the item.

b. For Reference 13 replace Dayton 2, SE, TN with Tennessee.

7. Insert new Table 2.3-1A (2 pages), Extreme Wind Speeds.

8. Insert new Table 2.3-1B, Storm Events for Rhea and Surrounding Counties

9. Expand Table 2.3-2, to restore previous information regarding temperature data for Dayton and Decatur removed by a previous amendment.

10. Revise Table 2.3-3 to clarify mean temperature information.

11. Revised Table 2.3-4 to provide both Watts Bar Dam and Watts Bar Nuclear Plant meteorological tower information.

12. Revise Table 2.3-5 to add dates of snowfall events to table.

13. Revise Table 2.3-6 to change first column heading from Monthly Average to Normal.

14. Revise Table 2.3-9 to change format to offset seasonal information from the monthly data.

15. Revise Table 2.3-10 to divide table into two pages such that data from the July 1, 1973 to June 20, 1975 time period can be included.

In addition, modify the equation format.

16. Revise Table 2.3-11 to divide table into two pages such that data from the July 1, 1973 to June 20, 1975 time period can be included.

In addition, modify the equation format and footnotes.

17. Revise Table 2.3-13 to expand data to include the time frame January 1, 1974 - December 31, 1993 E1-2

ENCLOSURE 1 WBN Unit 2 FSAR A101 Summary Listing of A101 FSAR Changes" Item Change Area Change Description Change Package Number No.

For Section 4.3, change 118% power to 121% power in two places.

For Table of Contents, Page 7.2-22, change the title of Section 7.7.1.11 from Deleted to Distributed Control System For Section 7.2, revise the discussion of elbow tap flow methodology to read:

Nominal full power flow is established at the beginning of each fuel cycle by either elbow tap methodology or performance of the RCS calorimetric flow measurement. The results are used to normalize the RCS flow indicators and provide a reference point for the low flow reactor trip setpoint.

For Section 7.7.1.1.2, Page 7.7-3, change equation variable (1+tss) to read (1+t2s) and (1+ts) to read (1+t1s)

For Section 7.7.1.11, Page 7.7-21, change title from Deleted to read Distributed control system and add system description.

Section 4.3 For Section 7.7.1.12, Page 7.7-21, change two pressure transmitters Section 7.2 measuring first stage turbine pressure to read two pressure transmitters Section 7.7

9. measuring turbine impulse pressure 2-101-05 Section 12.3 Table 7.3-2 For Section 12.3.4.1.3, Page 12.3-19, Revise the text to read as follows:

Table 7.5-2 With the exception of the Reactor Building upper and lower compartment post accident monitors, periodic testing of each area monitor includes a channel calibration performed at least once per 22.5 months (18 months plus 25%), and a channel operational test (COT) performed periodically. Monitor testing is performed in accordance with licensing or TVA program requirements (Technical Specifications, Offsite Dose Calculation Manual (ODCM), or the TVA calibration program).

Testing of the Reactor Building upper and lower compartment post accident monitors is performed in accordance with the Technical Specifications.

For Table 7.3-2, page 1, Add *** reference to note to line item 4b for Containment Purge Air Exhaust Gas Monitor Radioactivity High For Table 7.5-2, Deviation 2, page 7.5-36, change variable reference from 15 to 19.

For Table 7.5-2, Deviation 10, Page 7.5-42, change SC in last line of Justification to SG.

Corrects typographical and unit designation for valve FCV-65-09 and

10. Table 6.2.3-2 2-101-06 FCV-65-29 in Table 6.2.3-2 Revise Table 5.2-8, page 3 to delete and -2 under Branch Nozzles

11. Table 5.2-8 Material Specifications. Change sentence to read SA182 GR 304N or 2-101-07 GR 316 (Code Case 1423-1).

E1-3

ENCLOSURE 1 WBN Unit 2 FSAR A101 Summary Listing of A101 FSAR Changes" Item Change Area Change Description Change Package Number No.

1. Add term (Td) after the word dewpoint in the line beginning with Relative Humidity (RH) below Table 2.3-10 to as indicated in the attached markup.

2. Revise Table 2.3-10 to add at the bottom of the table the units used in the equations:

units: RH = percent (%)

T, Td = degrees celsius (°C) e, es = millibars (mb)

Table 2.3-10 Table 2.3-11 3. Revise Table 2.3-11 to add at the bottom of the table the units used

12. 2-101-08 Section 2.4 in the equations:

Section 10.4 3

units: AH = grams/cubic meter (g/m )

T = degrees kelvin (°K)

Pw = millibars (mb)

4. Delete Figures 2.4-40a, sheets 2 and 3 and the sentence found on page 2.4-8, that reads, Figures 2.4-40a (sheets 2 & 3) show paved and unpaved areas.

5. In Section 10.4.4.3, correct the misspelling of the words conditions and high on page 10.4-9.

Replace existing text under the compliance subheading of Criterion 63 -

Monitoring Fuel and Waste Storage with the following text:

Failure in the spent fuel cooling system will result in control room annunciation and local temperature indication.

High radiation in the spent fuel storage (refuel floor) area will produce the following alarms:

1. Main Control Room alarm from the spent fuel pool area accident monitors.

2. Local and Main Control Room alarms from the refuel floor area monitor.

3. Local alarm from a portable continuous air monitor located on the

13. Section 3.1.2.6 refuel floor. 2-101-09

4. Main Control Room alarm from the Auxiliary Building Ventilation Radiation Monitor for high airborne radiation in the spent fuel storage area.

High radiation in the waste packaging area will result in the following alarms:

1. Main Control Room and local alarms from the waste packaging area monitor.

2. Local alarms from a portable continuous air monitor located in the area.

3. Main Control Room alarm from the Auxiliary Building Ventilation Radiation Monitor for high airborne radiation in the waste packaging area.

E1-4

ENCLOSURE 1 WBN Unit 2 FSAR A101 Summary Listing of A101 FSAR Changes" Item Change Area Change Description Change Package Number No.

1. Replace existing text contained in Section 11.2.6.5 with the following:

The potential releases have been evaluated as indicated in the above sections. The expected liquid releases from Watts Bar are well below the limit of 5 Curies (Ci) per year as prescribed in 10 CFR 50, Appendix I as shown by the values given in column 4 and 5 of Table 11.2-5. Column 6 (no CD processing) indicates a yearly release of 30.03 Ci with no Condensate Demineralizer (CD) processing of waste and no limitations on steam generator blow down concentrations. This operational mode is not normally used since long term use results in exceeding the 5 Ci/yr limit in 10 CFR 50, Appendix I. Column 7 of Table 11.2-5 indicates that the total release, including untreated steam generator blow down, is significantly below the 10 CFR 50, Appendix I limit of 5 Ci/yr if the steam generator blow down concentration is restricted to the Lower Limit of Detection (LLD) of 5E-7 uCi/cc gross gamma during the release and no other Condensate Demineralizer waste is processed during the release. However, column 7 does include other releases from waste holdup tanks which are treated using the Mobile Demineralizers. Column 8 of Table 11.2-5 indicates steam generator blow down can be released untreated and remain within the 10 CFR 50, Appendix I limit of 5 Ci/yr if the Steam Generator Blow down concentration is restricted to a maximum concentration of 3.65E-5 uCi/cc gross gamma during the release and no other Condensate Demineralizer waste is processed during the release.

However, column 8 does include other releases from waste holdup tanks which are treated using the Mobile Demineralizers.

Section 11.2.6.5 Tables 11.2-5a, 11.2-5b, 11.2-5c, and 11.2-5d describe liquid

14. Table 11.2-5c 2-101-10 releases for 1% failed fuel for both treated and untreated waste Table 11.2-5d relative to the requirements of 10 CFR 20.1302(b). The sum over all isotopes of the concentrations/ECL (C/ECL) value from the Table 11.2-5a is greater than unity for the case where all isotopes are at design values and the released liquid is not processed by the Mobile Demineralizers. This mode of operation is not normally used since the C/ECL value exceeds the requirements of 10 CFR 20.1302(b).

The bulk of the release is due to the untreated condensate resin regeneration waste. In order to prevent exceeding the 10 CFR 20.1302(b) limits, the condensate regeneration waste is rerouted through the Mobile Demineralizers if the long term releases from the condensate regeneration waste is greater than the 10 CFR 20 concentration limits. With Mobile Demineralizer processing of condensate regeneration waste, the release concentrations are shown in Table 11.2-5b and are less than the limits specified in 10 CFR 20.1302(b). Table 11.2-5c shows releases remain within the 10CFR 20 limits if the steam generator blow down concentration is restricted to the Lower Limit of Detection (LLD) of 5E-7 uCi/cc gross gamma during the release and no other Condensate Demineralizer waste is processed during the release. However, these releases do include other releases from waste holdup tanks which are treated using the Mobile Demineralizers. Table 11.2-5d shows releases remain within the 10CFR 20 limits if the steam generator blow down concentration is restricted to a maximum concentration of 3.65E-5 uCi/cc gross gamma during the release and no other Condensate Demineralizer waste is processed during the release. However, these releases do include other releases from waste holdup tanks which are treated using the Mobile Demineralizers.

2. Add new Tables 11.2-5c and 11.2.5d E1-5

ENCLOSURE 1 WBN Unit 2 FSAR A101 Summary Listing of A101 FSAR Changes" Item Change Area Change Description Change Package Number No.

Changes to Table 3.2-2:

1 (Page 9 of 17) ""Upper Containment, CRDM, & Instrument Room Cooling" is one equipment location/category heading.

Consequently, the "CRDM & Instrument Room Cooling" entry is combined with the "Upper Compartment" entry. The corresponding columns will be retained for this line item, except that reference to Note 11 is deleted since it is not applicable to this equipment. The intent of retaining the corresponding columns is to show the scope of supply, location, seismic category, etc of the equipment making up this HVAC equipment.

15. Table 3.2-2 2-101-11 2 (Page 11 of 17) Column (6) "Rad Source" to be completed with the appropriate "dash" for "Main Steam Relief and Safety Valves.

3 (Page 12 of 17) Column (2) "TVA/ANS Safety Class" to be completed with the appropriate "G" for the "Spent fuel Purification Pumps."

4 (Page 16 of 17) Column (7) "Seismic" to be completed with the appropriate "I(L)" for the "Valves (Discharge Header Air Release &

Piping)."

1. For Section 2.3.2.2, first paragraph, change temperature ranges as follows:

a) Normal daily maximum temperature range from 45.9-48.8°F to 45.9-49.9°F in winter b) Normal daily maximum temperature range from 87.7-89.8°F to 87.7-89.6°F in summer c) Normal daily minimum temperature range from 25.6-29.9°F to Section 2.3.2.2

16. 26.5-31.1°F in winter 2-101-12 Table 2.3-2 d) Normal daily minimum temperature range from 66.1-69.4°F to 66.1-69.0°F in summer e) Revise the maximum rainfall in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> date from January 17, 1994 to September 17, 1994.

2. Table 2.3 Add a superscript a to the end of table title as follows: Table 2.3-2, Temperature Data, Dayton and Decatur, Tennessee Cooperative Observer Dataa E1-6

ENCLOSURE 2 WBN Unit 2 FSAR A101 Summary of Redacted Pages Chapter Page(S) Section No. Figure No. Basis For Redaction 1 1.2-15 1.2 1.2-1 Security Related, 10CFR2.390(d)(1) 1 1.2-16 1.2 1.2-2 Security Related, 10CFR2.390(d)(1) 1 1.2-17 1.2 1.2-3 Security Related, 10CFR2.390(d)(1) 1 1.2-18 1.2 1.2-4 Security Related, 10CFR2.390(d)(1) 1 1.2-19 1.2 1.2-5 Security Related, 10CFR2.390(d)(1) 1 1.2-20 1.2 1.2-6 Security Related, 10CFR2.390(d)(1) 1 1.2-21 1.2 1.2-7 Security Related, 10CFR2.390(d)(1) 1 1.2-22 1.2 1.2-8 Security Related, 10CFR2.390(d)(1) 1 1.2-23 1.2 1.2-9 Security Related, 10CFR2.390(d)(1) 1 1.2-24 1.2 1.2-10 Security Related, 10CFR2.390(d)(1) 1 1.2-25 1.2 1.2-11 Security Related, 10CFR2.390(d)(1) 1 1.2-26 1.2 1.2-12 Security Related, 10CFR2.390(d)(1) 1 1.2-27 1.2 1.2-13 Security Related, 10CFR2.390(d)(1) 1 1.2-28 1.2 1.2-14 Security Related, 10CFR2.390(d)(1) 1 1.2-29 1.2 1.2-15 Security Related, 10CFR2.390(d)(1) 2 2.2-7 2.2 2.2-1 Security Related, 10CFR2.390(d)(1) 2 2.2-8 2.2 2.2-2 Security Related, 10CFR2.390(d)(1) 2 2.4-89 2.4 2.4-2 Security Related, 10CFR2.390(d)(1) 2 2.4-159 2.4 2.4-24 Security Related, 10CFR2.390(d)(1) 2 2.4-162 2.4 2.4-27 Security Related, 10CFR2.390(d)(1) 2 2.4-163 2.4 2.4-28 Security Related, 10CFR2.390(d)(1) 2.4-40a 2 2.4-168 2.4 Security Related, 10CFR2.390(d)(1)

Sheet 1 2 2.4-171 2.4 2.4-40b Security Related, 10CFR2.390(d)(1) 2 2.4-172 2.4 2.4-40c Security Related, 10CFR2.390(d)(1) 2.4-40d 2 2.4-173 2.4 Security Related, 10CFR2.390(d)(1)

Sheet 1 2.4-40f 2 2.4-178 2.4 Security Related, 10CFR2.390(d)(1)

Sheet 1 2.4-40g 2 2.4-181 2.4 Security Related, 10CFR2.390(d)(1)

Sheet 1 2 2.4-206 2.4 2.4-76 Security Related, 10CFR2.390(d)(1) 2 2.4-209 2.4 2.4-79 Security Related, 10CFR2.390(d)(1) 2 2.4-212 2.4 2.4-82 Security Related, 10CFR2.390(d)(1) 2 2.4-213 2.4 2.4-83 Security Related, 10CFR2.390(d)(1) 2 2.4-218 2.4 2.4-88 Security Related, 10CFR2.390(d)(1) 2 2.4-219 2.4 2.4-89 Security Related, 10CFR2.390(d)(1) 2 2.4-220 2.4 2.4-90 Security Related, 10CFR2.390(d)(1) 2 2.5-471 2.5 2.5-185 Security Related, 10CFR2.390(d)(1) 2 2.5-472 2.5 2.5-185a Security Related, 10CFR2.390(d)(1) 2 2.5-513 2.5 2.5-225 Security Related, 10CFR2.390(d)(1) 2 2.5-514 2.5 2.5-226 Security Related, 10CFR2.390(d)(1) 2 2.5-515 2.5 2.5-226a Security Related, 10CFR2.390(d)(1) 2 2.5-575 2.5 2.5-273 Security Related, 10CFR2.390(d)(1) 2 2.5-690 2.5 2.5-358 Security Related, 10CFR2.390(d)(1) 2 2.5-934 2.5 2.5-592 Security Related, 10CFR2.390(d)(1)

E2-1

ENCLOSURE 2 WBN Unit 2 FSAR A101 Summary of Redacted Pages Chapter Page(S) Section No. Figure No. Basis For Redaction 3 3.5-53 3.5 3.5-3 Security Related, 10CFR2.390(d)(1) 3 3.5-54 3.5 3.5-4 Security Related, 10CFR2.390(d)(1) 3 3.6-73 3.6 3.6-21 Security Related, 10CFR2.390(d)(1) 3 3.6-74 3.6 3.6-22 Security Related, 10CFR2.390(d)(1) 3 3.6-75 3.6 3.6-23 Security Related, 10CFR2.390(d)(1) 3 3.6-76 3.6 3.6-24 Security Related, 10CFR2.390(d)(1) 3 3.7-217 3.7 3.7-39 Security Related, 10CFR2.390(d)(1) 3 3.7-218 3.7 3.7-40 Security Related, 10CFR2.390(d)(1) 3 3.7-219 3.7 3.7-41 Security Related, 10CFR2.390(d)(1) 3 3.7-222 3.7 3.7-44 Security Related, 10CFR2.390(d)(1) 3 3.8.3-60 3.8.3 3.8.3-6 Security Related, 10CFR2.390(d)(1) 3 3.8.3-61 3.8.3 3.8.3-7 Security Related, 10CFR2.390(d)(1) 3 3.8.4-94 3.8.4 3.8.4-2 Security Related, 10CFR2.390(d)(1) 3 3.8.4-95 3.8.4 3.8.4-3 Security Related, 10CFR2.390(d)(1) 3 3.8.4-96 3.8.4 3.8.4-4 Security Related, 10CFR2.390(d)(1) 3 3.8.4-97 3.8.4 3.8.4-5 Security Related, 10CFR2.390(d)(1) 3 3.8.4-98 3.8.4 3.8.4-6 Security Related, 10CFR2.390(d)(1) 3 3.8.4-101 3.8.4 3.8.4-9 Security Related, 10CFR2.390(d)(1) 3 3.8.4-109 3.8.4 3.8.4-17 Security Related, 10CFR2.390(d)(1) 3 3.8.4-110 3.8.4 3.8.4-18 Security Related, 10CFR2.390(d)(1) 3 3.8.4-111 3.8.4 3.8.4-19 Security Related, 10CFR2.390(d)(1) 3 3.8.4-112 3.8.4 3.8.4-20 Security Related, 10CFR2.390(d)(1) 3 3.8.4-116 3.8.4 3.8.4-24 Security Related, 10CFR2.390(d)(1) 3 3.8.4-120 3.8.4 3.8.4-28 Security Related, 10CFR2.390(d)(1) 3 3.8.4-127 3.8.4 3.8.4-35 Security Related, 10CFR2.390(d)(1) 3 3.8.4-128 3.8.4 3.8.4-36 Security Related, 10CFR2.390(d)(1) 3 3.8.4-129 3.8.4 3.8.4-36a Security Related, 10CFR2.390(d)(1) 3 3.8.4-132 3.8.4 3.8.4-37 Security Related, 10CFR2.390(d)(1) 3 3.8.4-149 3.8.4 3.8.4-50 Security Related, 10CFR2.390(d)(1) 3 3.8.4-150 3.8.4 3.8.4-51 Security Related, 10CFR2.390(d)(1) 3 3.8.6-19 3.8.6 3.8.6-7 Security Related, 10CFR2.390(d)(1) 6 6.2.2-24 6.2.2 6.2.2-4 Security Related, 10CFR2.390(d)(1) 6 6.2.3-76 6.2.3 6.2.3-4 Security Related, 10CFR2.390(d)(1) 6 6.2.3-77 6.2.3 6.2.3-5 Security Related, 10CFR2.390(d)(1) 6 6.2.3-78 6.2.3 6.2.3-6 Security Related, 10CFR2.390(d)(1) 6 6.2.3-79 6.2.3 6.2.3-7 Security Related, 10CFR2.390(d)(1) 6 6.2.3-80 6.2.3 6.2.3-8 Security Related, 10CFR2.390(d)(1) 6 6.2.3-81 6.2.3 6.2.3-9 Security Related, 10CFR2.390(d)(1) 6 6.2.3-82 6.2.3 6.2.3-10 Security Related, 10CFR2.390(d)(1) 6 6.2.3-92 6.2.3 6.2.3-18 Security Related, 10CFR2.390(d)(1) 6 6.2.3-93 6.2.3 6.2.3-19 Security Related, 10CFR2.390(d)(1) 8 8.1-21 8.1 8.1-1 Security Related, 10CFR2.390(d)(1) 8 8.2-14 8.2 Text only Security Related, 10CFR2.390(d)(1) 8 8.2-15 8.2 Text only Security Related, 10CFR2.390(d)(1) 8 8.2-30 8.2 8.2-3 Security Related, 10CFR2.390(d)(1)

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ENCLOSURE 2 WBN Unit 2 FSAR A101 Summary of Redacted Pages Chapter Page(S) Section No. Figure No. Basis For Redaction 8 8.2-31 8.2 8.2-4 Security Related, 10CFR2.390(d)(1) 8 8.2-44 8.2 8.2-11 Security Related, 10CFR2.390(d)(1) 8 8.3-97 8.3 8.3-1 Security Related, 10CFR2.390(d)(1) 8 8.3-99 8.3 8.3-2 Security Related, 10CFR2.390(d)(1) 8 8.3-100 8.3 8.3-3 Security Related, 10CFR2.390(d)(1) 8 8.3-102 8.3 8.3-4b Security Related, 10CFR2.390(d)(1) 8 8.3-205 8.3 8.3-46 Security Related, 10CFR2.390(d)(1) 8 8.3-218 8.3 8.3-59 Security Related, 10CFR2.390(d)(1) 9 9.2-208 9.2 9.2-40 Security Related, 10CFR2.390(d)(1) 9 9.4-276 9.4 9.4-21 Security Related, 10CFR2.390(d)(1) 9 9.4-280 9.4 9.4-22c Security Related, 10CFR2.390(d)(1) 9 9.4-281 9.4 9.4-23 Security Related, 10CFR2.390(d)(1) 9 9.4-282 9.4 9.4-24 Security Related, 10CFR2.390(d)(1) 12 12.3-39 12.3 12.3-1 Security Related, 10CFR2.390(d)(1) 12 12.3-40 12.3 12.3-2 Security Related, 10CFR2.390(d)(1) 12 12.3-41 12.3 12.3-3 Security Related, 10CFR2.390(d)(1) 12 12.3-42 12.3 12.3-4 Security Related, 10CFR2.390(d)(1) 12 12.3-43 12.3 12.3-5 Security Related, 10CFR2.390(d)(1) 12 12.3-44 12.3 12.3-6 Security Related, 10CFR2.390(d)(1) 12 12.3-45 12.3 12.3-7 Security Related, 10CFR2.390(d)(1) 12 12.3-46 12.3 12.3-8 Security Related, 10CFR2.390(d)(1) 12 12.3-47 12.3 12.3-9 Security Related, 10CFR2.390(d)(1) 12 12.3-48 12.3 12.3-10 Security Related, 10CFR2.390(d)(1) 12 12.3-49 12.3 12.3-11 Security Related, 10CFR2.390(d)(1) 12 12.3-50 12.3 12.3-12 Security Related, 10CFR2.390(d)(1) 12 12.3-51 12.3 12.3-13 Security Related, 10CFR2.390(d)(1) 12 12.3-52 12.3 12.3-14 Security Related, 10CFR2.390(d)(1) 12 12.3-53 12.3 12.3-15 Security Related, 10CFR2.390(d)(1) 12 12.3-54 12.3 12.3-16 Security Related, 10CFR2.390(d)(1) 12 12.3-55 12.3 12.3-17 Security Related, 10CFR2.390(d)(1) 12 12.4-5 12.4 12.4-1 Security Related, 10CFR2.390(d)(1)

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ENCLOSURE 3 WBN Unit 2 FSAR A101 List Of Files And File Sizes On The Security-Related OSM (OSM #1)

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ENCLOSURE 3 TVA Watts Bar Nuclear Plant Unit 2 FSAR Amendment 101 - List of Files on Security-Related OSM File Name File Size - Bytes TVA_WBN-2_FSAR_Files 001_TVA_WB_FSAR_TOC.pdf 358,525 002_TVA_WB_FSAR_LEP.pdf 87,238 003_TVA_WB_FSAR_Section_1.pdf 4,642,070 004_TVA_WB_FSAR_Section_2_A.pdf 11,465,728 005_TVA_WB_FSAR_Section_2_B_Part_1_of_2.pdf 40,497,006 005_TVA_WB_FSAR_Section_2_B_Part_2_of_2.pdf 11,274,012 006_TVA_WB_FSAR_Section_2_C.pdf 2,107,744 007_TVA_WB_FSAR_Section_2_D.pdf 31,324,130 008_TVA_WB_FSAR_Section_2_E.pdf 45,933,140 009_TVA_WB_FSAR_Section_3_A.pdf 3,051,594 010_TVA_WB_FSAR_Section_3_B.pdf 7,063,207 011_TVA_WB_FSAR_Section_3_C.pdf 30,016,810 012_TVA_WB_FSAR_Section_3_D.pdf 6,016,719 013_TVA_WB_FSAR_Section_4.pdf 12,748,298 014_TVA_WB_FSAR_Section_5.pdf 10,114,631 015_TVA_WB_FSAR_Section_6_A.pdf 20,535,860 016_TVA_WB_FSAR_Section_6_B.pdf 8,064,404 017_TVA_WB_FSAR_Section_7.pdf 9,407,644 018_TVA_WB_FSAR_Section_8.pdf 26,807,484 019_TVA_WB_FSAR_Section_9_A.pdf 24,502,556 020_TVA_WB_FSAR_Section_9_B.pdf 17,656,580 021_TVA_WB_FSAR_Section_10.pdf 14,162,212 022_TVA_WB_FSAR_Section_11.pdf 4,199,916 023_TVA_WB_FSAR_Section_12.pdf 6,105,780 024_TVA_WB_FSAR_Section_13.pdf 3,238,828 025_TVA_WB_FSAR_Section_14.pdf 1,168,561 Page 1 of 3

File Name File Size - Bytes 026_TVA_WB_FSAR_Section_15.pdf 35,474,284 027_TVA_WB_FSAR_Section_16.pdf 148,218 028_TVA_WB_FSAR_Section_17.pdf 144,828 Total 388,318,007 TVA_WBN-2_Oversized_FSAR_Figures 001_TVA_WB_FSAR_Figure_2.5_3.pdf 1,757,743 002_TVA_WB_FSAR_Figure_2.5_11.pdf 1,689,538 003_TVA_WB_FSAR_Figure_2.5_71.pdf 2,263,087 004_TVA_WB_FSAR_Figure_2.5_222.pdf 909,429 005_TVA_WB_FSAR_Figure_2.5_281_1.pdf 2,155,627 006_TVA_WB_FSAR_Figure_2.5_281_2.pdf 2,117,562 007_TVA_WB_FSAR_Figure_2.5_549_1.pdf 3,600,807 008_TVA_WB_FSAR_Figure_2.5_549_2.pdf 3,989,180 009_TVA_WB_FSAR_Figure_2.5_549_3.pdf 2,863,719 010_TVA_WB_FSAR_Figure_2.5_549_4.pdf 2,809,599 011_TVA_WB_FSAR_Figure_2.5_550.pdf 1,803,985 012_TVA_WB_FSAR_Figure_2.5_551.pdf 1,996,869 013_TVA_WB_FSAR_Figure_2.5_554_1.pdf 3,081,060 014_TVA_WB_FSAR_Figure_2.5_554_2.pdf 1,996,707 015_TVA_WB_FSAR_Figure_2.5_555.pdf 1,993,312 016_TVA_WB_FSAR_Figure_2.5_556.pdf 2,998,087 017_TVA_WB_FSAR_Figure_2.5_571_1.pdf 844,484 018_TVA_WB_FSAR_Figure_2.5_571_2.pdf 3,128,329 019_TVA_WB_FSAR_Figure_2.5_571_3.pdf 3,284,555 020_TVA_WB_FSAR_Figure_2.5_571_4.pdf 2,142,316 021_TVA_WB_FSAR_Figure_2.5_572.pdf 2,196,945

ENCLOSURE 3 TVA Watts Bar Nuclear Plant Unit 2 FSAR Amendment 101 - List of Files on Security-Related OSM File Name File Size - Bytes 022_TVA_WB_FSAR_Figure_2.5_573.pdf 2,013,286 023_TVA_WB_FSAR_Figure_2.5_576_1.pdf 3,238,525 024_TVA_WB_FSAR_Figure_2.5_576_2.pdf 2,151,750 025_TVA_WB_FSAR_Figure_2.5_577.pdf 2,207,622 026_TVA_WB_FSAR_Figure_2.5_578.pdf 2,080,032 027_TVA_WB_FSAR_Figure_2.5_579.pdf 2,308,985 028_TVA_WB_FSAR_Figure_2.5_583.pdf 2,487,346 029_TVA_WB_FSAR_Figure_2.5_588.pdf 2,528,515 030_TVA_WB_FSAR_Figure_2.5_589.pdf 2,480,438 031_TVA_WB_FSAR_Figure_2.5_594.pdf 13,054,127 032_TVA_WB_FSAR_Figure_2.5_595.pdf 2,323,267 033_TVA_WB_FSAR_Figure_2.5_596.pdf 5,732,107 034_TVA_WB_FSAR_Figure_2.5_597.pdf 1,287,336 035_TVA_WB_FSAR_Figure_2.5_602.pdf 5,549,537 036_TVA_WB_FSAR_Figure_2.5_603.pdf 4,830,835 037_TVA_WB_FSAR_Figure_2.5_604.pdf 6,392,279 038_TVA_WB_FSAR_Figure_2.5_605.pdf 20,823,108 Total 131,112,035 TVA_WBN-2_Oversized_FSAR_Table 001_TVA_WB_FSAR_Table_6.2.4-1.pdf 1,208,010 Total 1,208,010 Page 3 of 3

ENCLOSURE 4 WBN Unit 2 FSAR A101 List Of Files And File Sizes On The Publicly Available OSM (OSM #2)

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ENCLOSURE 4 TVA Watts Bar Nuclear Plant Unit 2 FSAR Amendment 101 List of Files on Publicly Available OSM File Name File Size - Bytes TVA_WBN-2_FSAR_Files 001_TVA_WB_FSAR_TOC.pdf 358,528 002_TVA_WB_FSAR_LEP.pdf 87,238 003_TVA_WB_FSAR_Section_1.pdf 835,469 004_TVA_WB_FSAR_Section_2_A.pdf 11,129,167 005_TVA_WB_FSAR_Section_2_B_Part_1_of_2.pdf 31,807,586 005_TVA_WB_FSAR_Section_2_B_Part_2_of_2.pdf 8,775,454 006_TVA_WB_FSAR_Section_2_C.pdf 2,107,744 007_TVA_WB_FSAR_Section_2_D.pdf 31,324,130 008_TVA_WB_FSAR_Section_2_E.pdf 45,933,140 009_TVA_WB_FSAR_Section_3_A.pdf 2,760,149 010_TVA_WB_FSAR_Section_3_B.pdf 5,661,489 011_TVA_WB_FSAR_Section_3_C.pdf 25,184,334 012_TVA_WB_FSAR_Section_3_D.pdf 5,748,065 013_TVA_WB_FSAR_Section_4.pdf 12,748,298 014_TVA_WB_FSAR_Section_5.pdf 10,115,631 015 TVA WB FSAR Section 6 A pdf 015_TVA_WB_FSAR_Section_6_A.pdf 17 655 922 17,655,922 016_TVA_WB_FSAR_Section_6_B.pdf 8,064,404 017_TVA_WB_FSAR_Section_7.pdf 9,407,644 018_TVA_WB_FSAR_Section_8.pdf 26,807,484 019_TVA_WB_FSAR_Section_9_A.pdf 24,241,396 020_TVA_WB_FSAR_Section_9_B.pdf 16,442,057 021_TVA_WB_FSAR_Section_10.pdf 14,162,212 022_TVA_WB_FSAR_Section_11.pdf 4,199,916 023_TVA_WB_FSAR_Section_12.pdf 1,837,756 024_TVA_WB_FSAR_Section_13.pdf 3,238,828 025_TVA_WB_FSAR_Section_14.pdf 1,168,561 026_TVA_WB_FSAR_Section_15.pdf 35,474,284 Note: Byte amounts in italics are redacted files. Page 1 of 3

File Name File Size - Bytes 027_TVA_WB_FSAR_Section_16.pdf 148,218 028_TVA_WB_FSAR_Section_17.pdf 144,828 Total 357,569,932 TVA_WBN-2_Oversized_FSAR_Figures 001_TVA_WB_FSAR_Figure_2.5_3.pdf 1,757,743 002_TVA_WB_FSAR_Figure_2.5_11.pdf 1,689,538 003_TVA_WB_FSAR_Figure_2.5_71.pdf 2,263,087 004_TVA_WB_FSAR_Figure_2.5_222.pdf 909,429 005_TVA_WB_FSAR_Figure_2.5_281_1.pdf 2,155,627 006_TVA_WB_FSAR_Figure_2.5_281_2.pdf 2,117,562 007_TVA_WB_FSAR_Figure_2.5_549_1.pdf 3,600,807 008_TVA_WB_FSAR_Figure_2.5_549_2.pdf 3,989,180 009_TVA_WB_FSAR_Figure_2.5_549_3.pdf 2,863,719 010_TVA_WB_FSAR_Figure_2.5_549_4.pdf 2,809,599 011_TVA_WB_FSAR_Figure_2.5_550.pdf 1,803,985 012 TVA WB FSAR Figure 2 5 551 pdf 012_TVA_WB_FSAR_Figure_2.5_551.pdf 1 996 869 1,996,869 013_TVA_WB_FSAR_Figure_2.5_554_1.pdf 3,081,060 014_TVA_WB_FSAR_Figure_2.5_554_2.pdf 1,996,707 015_TVA_WB_FSAR_Figure_2.5_555.pdf 1,993,312 016_TVA_WB_FSAR_Figure_2.5_556.pdf 2,998,087 017_TVA_WB_FSAR_Figure_2.5_571_1.pdf 844,484 018_TVA_WB_FSAR_Figure_2.5_571_2.pdf 3,128,329 019_TVA_WB_FSAR_Figure_2.5_571_3.pdf 3,284,555 020_TVA_WB_FSAR_Figure_2.5_571_4.pdf 2,142,316 021_TVA_WB_FSAR_Figure_2.5_572.pdf 2,196,945 022_TVA_WB_FSAR_Figure_2.5_573.pdf 2,013,286 023_TVA_WB_FSAR_Figure_2.5_576_1.pdf 3,238,525

ENCLOSURE 4 TVA Watts Bar Nuclear Plant Unit 2 FSAR Amendment 101 List of Files on Publicly Available OSM File Name File Size - Bytes 024_TVA_WB_FSAR_Figure_2.5_576_2.pdf 2,151,750 025_TVA_WB_FSAR_Figure_2.5_577.pdf 2,207,622 026_TVA_WB_FSAR_Figure_2.5_578.pdf 2,080,032 027_TVA_WB_FSAR_Figure_2.5_579.pdf 2,308,985 028_TVA_WB_FSAR_Figure_2.5_583.pdf 2,487,346 029_TVA_WB_FSAR_Figure_2.5_588.pdf 2,528,515 030_TVA_WB_FSAR_Figure_2.5_589.pdf 2,480,438 031_TVA_WB_FSAR_Figure_2.5_594.pdf 13,054,127 032_TVA_WB_FSAR_Figure_2.5_595.pdf 2,323,267 033_TVA_WB_FSAR_Figure_2.5_596.pdf 5,732,107 034_TVA_WB_FSAR_Figure_2.5_597.pdf 1,287,336 035_TVA_WB_FSAR_Figure_2.5_602.pdf 5,549,537 036_TVA_WB_FSAR_Figure_2.5_603.pdf 4,830,835 037_TVA_WB_FSAR_Figure_2.5_604.pdf 6,392,279 038_TVA_WB_FSAR_Figure_2.5_605.pdf 20,823,108 Total 131,112,035 TVA_WBN-2_Oversized_FSAR_Table 001_TVA_WB_FSAR_Table_6.2.4-1.pdf 1,208,010 Total 1,208,010 Note: Byte amounts in italics are redacted files. Page 3 of 3