RS-10-017, Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time

Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time

ML100200075
Person / Time
Site:	Byron
Issue date:	01/19/2010
From:	Simpson P Exelon Generation Co, Exelon Nuclear
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RS-10-017, TAC ME2293, TAC ME2294
Download: ML100200075 (124)

Text

{{#Wiki_filter:www.exeloncorp.com Exelon Generation 4300 Winfield Road Nuclear Warrenville.IL 60555 RS-10-017 10 CFR 50.90 January 19, 2010 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Byron Station, Units 1 and 2 Facility Operating License Nos. NPF-37 and NPF*66 NRC Docket Nos. STN 50-454 and STN 50-455

Subject:

Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time

References:

1. Letter from P. R. Simpson (Exelon Generation Company, LLC) to U. S.

Nuclear Regulatory Commission, "License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time," dated September 24, 2009

2. Letter from M. J. David (U. S. Nuclear Regulatory Commission) to C. G. Pardee (Exelon Generation Company, LLC), "Byron Station, Unit Nos. 1 and 2-Request for Additional Information Related to One-Time Extension of Essential Service Water Train Completion Time (TAC Nos. ME2293 and ME2294),"

dated December 18, 2009 In Reference 1, Exelon Generation Company, LLC (EGC), requested a license amendment for Byron Station, Units 1 and 2, to revise Technical Specifications (TS) Limiting Condition for Operation (LCO) 3.7.8, "Essential Service Water (SX) System," to extend the Completion Time (CT) from 72 hours to 144 hours. This proposed change will only be used one time during the Byron Station Unit2 spring 2010 refueling outage (Le., B2R15) to restore a unit-specific SX train to operable status. In Reference 2, the NRC requested that EGC provide additional information in support of their review of Reference 1. Attachments 1, 2, 3, 4, and 5 provide the requested information. EGC has reviewed the information supporting a finding of no significant hazards consideration that was previously provided to the NRC in Reference 1. The additional information provided in this submittal does not affect the bases for concluding that the proposed license amendment does not involve a significant hazards consideration. In accordance with 10 CFR 50.91, "Notice for public comment; State consultation," paragraph (b), a copy of this letter and its non-proprietary attachments are being provided to the designated State of Illinois official.

January 19, 2010 U. S. Nuclear Regulatory Commission Page 2 The regulatory commitments contained in this letter are summarized in Attachment 5. The regulatory commitments provided in Attachment 5 are in addition to the commitment previously provided to the NRC in Reference 1. Should you have any questions concerning this letter, please contact Ms. Lisa A. Schofield at (630) 657-2815. I declare under penalty of perjury that the foregoing is true and correct. Executed on the 19th day of January 2010. Patrick R. Simpson Manager - Licensing Exelon Generation Company, LLC Attachments:

1. Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time

2. BY-LAR-003, Revision 1, Risk Management Responses to NRC RAls on SX One-Time CT Extension

3. Supporting Documentation

4. SX System Piping and Instrumentation Diagrams

5. Summary of Regulatory Commitments cc:

NRC Regional Administrator, Region III NRC Senior Resident Inspector, Byron Station NRR Project Manager, Braidwood Station Illinois Emergency Management Agency - Division of Nuclear Safety

ATTACHMENT 1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time In a letter dated December 18, 2009, the NRC requested that EGC provide additional information related to the application for a one-time extension of the essential service water train Completion Time (CT). Attachments 1, 2, 3, 4, and 5 provide the requested information. Question 1 The licensee identified that it used a separate fire probabilistic fire assessment (PRA) model to assess the risk impact from internal fires for this LAR. This model was identified as being "not fUlly realistic," and undergoing a significant revision to incorporate methods defined in NUREG/CR-6850, "EPRI/NRC-RES Fire PRA Methodology for Nuclear Power Facilities," September 2005. While the licensee provided some of the characteristics of the fire PRA model, the NRC staff requests the following additional information relevant to the technical adequacy of this model for this LAR. Question 1.8

a. Address how the current Byron fire PRA model satisfies the technical elements identified in Regulatory Guide (RG) 1.200, "An Approach for Determining the Technical Adequacy of Probabilistic Risk Assessment Results for Risk Informed Activities," Revision 1, January 2007, Section 1.2.4. Provide an appropriate justification of any outstanding plant changes not incorporated into the fire PRA model per RG 1.200, Revision 1, Section 4.2.

Response

The response to Question 1.a is provided in Section 2.1.1 of Attachment 2 to this submittal as the response to Question 1.a. Question 1.b

b. Describe where the existing fire PRA methods deviate from the methods described in NUREG/CR-6850, and justify the methods actually used.

Response

The response to Question 1.b is provided in Section 2.1.1 of Attachment 2 to this submittal as the response to Question 1.b. Question 1.c

c. Describe how spurious component operations are addressed in the fire PRA model.

Response

The response to Question 1.c is provided in Section 2.1.1 of Attachment 2 to this submittal as the response to Question 1.c. Page 1 of 8

ATTACHMENT 1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time Question 1.d

d. Describe how plant components modeled in the PRA, but not in the scope of the plant's fire safe shutdown licensing basis, have been addressed in the fire PRA. Specifically identify how cable route information for such components is handled if these components are credited in the fire PRA.

Response

The response to Question 1.d is provided in Section 2.1.1 of Attachment 2 to this submittal as the response to Question 1.d. Question 1.e

e. Identify how the human reliability analysis was modified for the fire PRA to account for the impacts of fire on these actions; identify any fire-specific recovery actions credited in the fire PRA, their failure probabilities, and the basis for the probabilities.

Response

The response to Question 1.e is provided in Section 2.1.1 of Attachment 2 to this submittal as the response to Question 1.e. Question 1.f

f. No large early-release frequency analysis was completed for fires, justified based on no impact of service water on containment isolation capability. Provide a more specific justification based on the fire PRA results obtained evaluating the specific sequences which dominate the fire risk profile and their conditional probability of a large early release.

Response

The response to Question 1.1 is provided in Section 2.1.1 of Attachment 2 to this submittal as the response to Question 1.1. Question 1.9

g. Identify the reviews (internal, external, and/or peer) completed for the fire PRA model to assure its quality.

Response

The response to Question 1.g is provided in Section 2.1.1 of Attachment 2 to this submittal as the response to Question 1.g. Page 2 of 8

ATIACHMENT1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time Question 2 The licensee has not specifically addressed how the cause/effect relationship was modeled in the PRA for this application. Question 2.a

a. Describe which basic event(s) in the PRA models (internal events and fire PRA) were modified to evaluate the SX outage, including the separate impacts on mitigation and initiating events.

Response

The response to Question 2.a is provided in Section 2.1.2 of Attachment 2 to this submittal as the response to Question 2.a. Question 2.b

b. Describe how any compensatory measures have been credited in the analysis, addressing both the baseline model and the configuration-specific assessment.

Response

The response to Question 2.b is provided in Section 2.1.2 of Attachment 2 to this submittal as the response to Question 2.b. Question 2.c

c. Identify whether recovery of inoperable SX pumps is credited, either for mitigation or for the calculation of initiating event frequency, and if so, justify the recovery probability applied.

Response

The response to Question 2.c is provided in Section 2.1.2 of Attachment 2 to this submittal as the response to Question 2.c. Question 2.d

d. Provide a sensitivity analysis for crediting any compensatory measures or recovery actions, which are unique for this evaluation.

Response

The response to Question 2.d is provided in Section 2.1.2 of Attachment 2 to this submittal as the response to Question 2.d. Page 3 of 8

ATTACHMENT 1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time Question 3 The tier 2 evaluation identifies compensatory measures in Table 3, "Byron SX A Train Outage Summary of Compensatory Measures," in Attachment 1 of the LAR as regulatory commitments, but the description of these items is vague. Question 3.a

a. Describe specifically what restrictions on availability are being committed by use of the term "protected equipment."

Response

The response to Question 3.a is provided in Section 2.1.3 of Attachment 2 to this submittal as the response to Question 3.a. A copy of OP-AA-108-117, "Protected Equipment Program," is provided in Attachment 3. Reference Summary of Regulatory Commitments in Attachment 5. Question 3.b

b. Identify specifically each component which is "protected," without the use of undefined plant acronyms.

Response

The response to Question 3.b is provided in Section 2.1.3 of Attachment 2 to this submittal as the response to Question 3.b. Question 3.c

c. Describe the process applied and basis to determine the scope of the protected equipment.

Response

The response to Question 3.c is provided in Section 2.1.3 of Attachment 2 to this submittal as the response to Question 3.c. Question 3.d

d. Describe the fire zones qualitatively, and identify how these zones were selected for a compensatory measure.

Response

The response to Question 3.d is provided in Section 2.1.3 of Attachment 2 to this submittal as the response to Question 3.d. Page 4 of 8

ATTACHMENT 1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time Question 4 In Attachment 5 of the LAR, the tier 3 evaluation identifies the plant Configuration Risk Management Program being applied to assess risk of emergent conditions. However, as identified in RG 1.177, "An Approach for Plant-Specific, Risk-Informed Decisionmaking: Technical Specifications," August 1998, there is no discussion of how external event risk, specifically fire risk, which comprises 90 percent of the total risk reported for this TS change, is assessed within the tier 3 evaluation. Describe how this significant risk contributor is evaluated.

Response

The response to Question 4 is provided in Section 2.1.4 of Attachment 2 to this submittal. Reference Summary of Regulatory Commitments in Attachment 5. Question 5 The LAR identifies the use of the fire protection system to maintain flow from the charging pumps to the reactor coolant pump seals, using dedicated operators and non-seismic connections. The NRC staff's understanding of the current guidance is that seal cooling cannot be restored after about 10 -15 minutes of interruption, due to seal heatup and concerns for thermal shock of the seals. Provide a more detailed discussion of this action as to the duration of the action, and impact on interruption of reactor coolant pump seal cooling and any relevant assumptions made regarding seal performance upon restoration of cooling.

Response

The response to Question 5 is provided in Section 2.1.5 of Attachment 2 to this submittal. Question 6 Throughout the submittal, reference is made to RG 1.174, "An Approach for Using Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis," July 1998. However, the current version of RG 1.174 is dated November 2002. Explain why the current version of RG 1.174 was not used as a basis for this submittal.

Response

The response to Question 6 is provided in Section 2.1.6 of Attachment 2 to this submittal. Question 7 NUREG-0800, Standard Review Plan (SRP) 16.1, Revision 1, "Risk-Informed Decision Making: Technical Specifications," describes NRC staff acceptance criteria regarding "defense in depth," considerations for TS changes. Criterion 11.1 A.(iii)(3) states that the licensee should consider, "Whether the TS change specifies that voluntary removal of equipment from service should not be scheduled when adverse weather conditions or other situations that likely may subject the plant to abnormal conditions are predicted." Page 5 of 8

ATTACHMENT 1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time The licensee has considered adverse weather conditions in its PRA analysis for external events, but has made no specified provision for adverse weather in its TS change in accordance with the guidelines of SRP 16.1, if adverse weather actually occurs. Explain why the TS change (specifically, in Attachment 1, Table 3) does not specify that the removal of 112SX001 A from service will not be scheduled when adverse weather conditions or other situations that likely may subject the plant to abnormal conditions are predicted. The NRC staff notes that implementation of Attachment 1, Table 3 is a regulatory commitment per of the LAR.

Response

The response to Question 7 is provided in Section 2.1.7 of Attachment 2 to this submittal. Reference Summary of Regulatory Commitments in Attachment 5. Question 8 The licensee has stated, in Attachment 5 of the LAR, that defense in depth is maintained, in part, because a best estimate flow analysis has shown that a single SX pump can provide cooling on both units with the exception of the reactor containment fan coolers (RCFC) and emergency diesel generators (EDGs) on the unit without an SX pump and one train of RCFCs on the unit with an available SX pump. Question 8.a

a. If, during the one-time extension of the CT, an SX pump is lost, describe the sequence of events and operator actions that will bring both units to safe shutdown.

Response

Prior to the start of the one-time extension of the CT, Unit 2 will already be in cold shutdown (Le., MODE 5). If, during the work window, the Unit 1 Train B (1 B) Essential Service Water System (SX) pump is lost, established procedures will be followed to provide for alternate cooling and to place Unit 1 into MODE 5. Specifically, Operations would initially enter Unit 1 Byron Abnormal Operating Procedure, 1BOA PRI-7, "Essential Service Water Malfunction Unit 1," Revision 104, which directs a crosstie to the Unit 2 Train B (2B) SX Train. This procedure requires that temperatures of vital equipment are monitored, non-essential loads are shed, and, if necessary, alternate non-safety related cooling sources are established. In parallel, Technical Specification (TS) 3.7.8, "Essential Service Water (SX) System," would require an immediate Limiting Condition for Operation (LCO) 3.0.3 entry for two Unit 1 specific SX trains being inoperable. LCO 3.0.3 requires Unit 1 to be placed into a MODE in which LCO 3.7.8 is not applicable (Le., MODE 5). If Unit 1 was at power at the time, then LCO 3.0.3 would require Unit 1 to be in MODE 5 within 37 hours. This shutdown would be accomplished via standard unit shutdown procedures. Page 6 of 8

ATIACHMENT1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time Conversely, if, during the work window, the 2B SX train is lost, Operations would initially enter Unit 2 Byron Abnormal Operating Procedure 2BOA PRI-?, "Essential Service Water Malfunction Unit 2," Revision 105, which would direct a crosstie to the 1B SX Train. Similar to 1BOA PRI-?, this procedure requires that temperatures of vital equipment are monitored, non-essential loads are shed, and, if necessary, alternate non-safety related cooling sources are established. If temperature limits of vital Unit 1 equipment are not being exceeded, then these actions would not necessarily require an immediate shutdown of Unit 1. Copies of 1BOA PRI-? and 2BOA PRI-? are provided in Attachment 3. Question 8.b

b. If the SX pump of the operating unit were lost, all ACFCs in the operating unit would lose SX flow. With no RCFCs available in the operating unit, explain why the other means of containment heat removal, Le., the containment spray system of the operating unit, are not on the protected system list during the extended CT.

Response

The response to Question 8.b is provided in Section 2.1.8 of Attachment 2 to this submittal as the response to Question 8.b. Question 8.c

c. If the SX pump of the operating unit were lost, both EDGs of the operating unit would be lost. Describe the feasibility of making provisions for temporary use of fire protection water, or another available water source, to supply at least one EDG of the unit without an SX pump during the extended CT and subsequent shutdown.

Response

If the Unit 1 (Le., the operating unit) SX pump were lost during the extended CT, Byron Abnormal Operating Procedure 1BOA PRI-? provides guidance on aligning Unit 2 (Le., the shutdown unit) SX to Unit 1 SX through the unit crosstie valves, 1/2SX005. Aligning Unit 2 SX to Unit 1 SX will provide SX to the Unit 1 EDGs. Byron Abnormal Operating Procedure OBOA PAlo?, "Loss of Ultimate Heat Sink Unit 0," Revision 0, provides guidance on aligning the Fire Protection (FP) system to the SX system in the event of a complete loss of SX pump capability coincident with an inability to crosstie to the opposite unit SX supply. Aligning FP to SX will allow at least one EDG to be supplied with cooling in the event of a loss of an SX pump during the extended CT and subsequent shutdown. Copies of 1BOA PRI-? and OBOA PAI-? are provided in Attachment 3. Page? of 8

ATTACHMENT 1 Additional Information Supporting License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time Question S.d

d. Provide piping and instrumentation drawings for the SX system from the units' current licensing basis.

Response

The requested piping and instrumentation diagrams are provided in Attachment 4 to this submittal. Page 8 of 8

ATTACHMENT 2 BY-LAR-003, Revision 1 Risk Management Responses to NRC RAls on SX One-Time CT Extension

PRA APPLICATION NOTEBOOK BY-LAR-003 Risk Management Responses to NRC RAIs on SX One-Time CT Extension REVISION 1 Contacts Byron Braidwood Site Joe Edom NA Risk Management Engineer 815-406-2327 Corporate Young In NA Risk Management Engineer 630-657-3858

Document Review RM DOCUMENTATION NO. BY-LAR-003 REV: 1 PAGE NO. 2 STATION: Byron UNIT(S) AFFECTED: 1 AND 2 TITLE: Risk Management Responses to NRC RAIs on SX One-Time CT Extension

SUMMARY

(Include UREs incorporated): This document provides the responses to questions asked by the NRC in a Request For Additional Information during their review of the SX One-Time CT extension LAR. URE(s) Impacted: None Number of pages: Total 24 pages, including this page. RM Document Level: Category 1, per ER-AA-600-1012. [ ] Review Required after periodic Update [ X ] Internal RM Documentation [ ] External RM Documentation Electronic Calculation Data Files: NA (Program Name, Version, File Name extension/size/date/hour/min) Method of Review: [ X ] Detailed [ ] Alternate [ ] Review of External Document This RM documentation supersedes: BY-LAR-003 REV. 0 in its entirety. Prepared by: Joe Edom / / Print Sign Date Prepared by: Usama Farradj / / Print Sign Date Reviewed by: Young In / / Print Sign Date Approved by: Greg Krueger / / Print Sign Date Do any ASSUMPTIONS / ENGINEERING JUDGEMENTS require later verification? [ ] Yes [ X ] No Tracked By: AT#, URE# etc.):

BY-LAR-003, REVISION 1 Table of Contents Section Page Revision Summary ........................................................................................................................ 3 1.0 PURPOSE & SCOPE ........................................................................................................... 4 2.0 RAI RESPONSES ................................................................................................................. 4 2.1 PRA RESPONSES ................................................................................................................. 4 3.0

SUMMARY

........................................................................................................................... 24

4.0 REFERENCES

..................................................................................................................... 24 Revision Summary Revision Summary Revision Date Summary 0 Refer to the Document Original Issue Review form 1 1/15/10 Editorial changes to Section 2.0. Configuration Control The Exelon Byron PRA model is updated in accordance with ER-AA-600, Risk Management. This procedure requires periodic updates of the PRA Model and on-going reviews of design changes for PRA model impact. Model and Support Application documentation is controlled in accordance with ER-AA-600-1012, Risk Management Documentation. Any outstanding changes to the model or documentation are documented in the Updating Requirements Evaluations Database in File URE-BB 2003.mdb. This database is located on the Risk Management K:\ drive at the Exelon Cantera office. Page 3 of 24

BY-LAR-003, REVISION 1 1.0 PURPOSE & SCOPE This document provides responses to questions the NRC has asked in a Request for Additional Information (RAI) (Reference 2) from their review of the Byron Station SX One-Time CT extension (Reference 1). These questions were formally transmitted to Exelon via Reference 2. The response to each of the questions is provided in Section 2 below. 2.0 RAI RESPONSES The RAI responses are provided below. 2.1 PRA Responses The format used below provides a copy of the NRC question and the associated Exelon response. 2.1.1 NRC Statement: The licensee identified that it used a separate fire probabilistic risk assessment (PRA) model to assess the risk impact from internal fires for this LAR. This model was identified as being not fully realistic, and undergoing a significant revision to incorporate methods defined in NUREG/CR-6850, EPRI/NRC-RES Fire PRA methodology for Nuclear Power Facilities, September 2005. While the licensee provided some of the characteristics of the fire PRA model, the NRC staff requests the following additional information relevant to the technical adequacy of this model for this LAR. Question 1.a: Address how the current Byron fire PRA model satisfies the technical elements identified in Regulatory Guide (RG) 1.200, An Approach for Determining the Technical Adequacy of Probabilistic Risk Assessment Results for Risk Informed Activities, Revision 1, January 2007, Section 1.2.4. Provide an appropriate justification of any outstanding plant changes not incorporated into the fire PRA model per RG 1.200, Rev. 1, Section 4.2.

Response

The Byron fire PRA (FPRA) model uses the methodology defined in NUREG/CR-6850, and generally includes the technical elements identified in RG1.200 Rev. 1 Section 1.2.4, as discussed in the response to RAI question 1.c. The Assessment Process section of Appendix B (Fire Risk Evaluation) of the SX CT Page 4 of 24

BY-LAR-003, REVISION 1 One Time Extension Application Notebook (BY-LAR-001) identifies the changes made to the Revision 6C fire PRA model to ensure consistency with the current Revision 6E internal events PRA model. The 6C fire PRA model was developed using the 6C internal events PRA model as its basis. A review of the changes made in the 6D and 6E revisions of the internal events PRA model was performed and the changes impacting the quantification for this evaluation were incorporated into the 6C fire PRA model to provide a current application specific model for this assessment. A discussion of outstanding plant changes that have been evaluated to be important to the model but have not yet been addressed in the Revision 6E internal events PRA model, and their potential impacts, has been provided in Attachment 6 of the LAR. Question 1.b: Describe where the existing fire PRA methods deviate from the methods described in NUREG/CR-6850, and justify the methods actually used.

Response

The following is a discussion of the fire PRA model status with respect to the methodology of NUREG/CR-6850.

1. Multiple Spurious Operation (MSO) Review (NUREG/CR-6850 Task 2) -

MSOs are reviewed and considered; however, an expert panel was not used. The Byron FPRA review incorporates a review of potential MSO scenarios identified by the PWR Owners Group in WCAP-16933-NP (PWR Generic List of Fire-Induced Multiple Spurious Operation Scenarios, PWR Owners Group, 2008 Version). These potential MSO scenarios were reviewed and an action item list generated with respect to additional review required to determine the need and to incorporate, as necessary, these scenarios into the internal events model for use in FPRA quantification. The risk assessment performed for the SX CT Extension application focuses on identifying areas of increased risk due to the extended SX Train A system outage. The primary areas of increased risk for this application are associated with those areas in which a fire will disable the Train B SX system. Any increased risk due to addition of multiple spurious operation scenarios to the fire PRA analysis model are expected to have similar impacts on both the baseline and SX CT Extension models, as any MSO-related potential vulnerabilities will be equally applicable to the baseline model and the model for this application. In addition, conservatisms associated with the fire PRA methodology ignition frequencies and fire sizes will tend to overwhelm any incremental impact of the MSOs. Although not yet formally established, it is expected that as the industry fire PRA methodologies become more Page 5 of 24

BY-LAR-003, REVISION 1 consistent with actual fire event frequencies and damage footprints, the reduction in fire risk will be significantly greater than the potential increase in risk due to the incorporation of MSO impacts. A review of recent FPRAs indicates that the increased risk associated with evaluation of MSO impact is not a major contributor to the overall fire risk given the conservatisms currently in the FPRAs. The impact of the MSO risk is not expected to be train specific and will therefore not impact the application risk results in a manner significantly different from its impact on the baseline fire PRA model.

2. Instrumentation Review (NUREG/CR-6850 Task 2) - The new requirements of NUREG/CR-6850 regarding the explicit identification and modeling of instrumentation required to support PRA credited operator actions have not yet been addressed. The industry treatment for this task is still being developed.

The impact of instrumentation cues on the credited internal events HEPs will not result in train specific risk increases which would impact this application. Human failure events (HFEs) associated with actions outside of the control room have been conservatively failed in the model, with the exception of actions which are credited beyond a timeframe of 2 hours after the fire event, since at this timeframe the fire event impact on the associated HEPs is expected to be negligible. As industry methodology for evaluation of the impact of instrumentation cues on post fire shutdown becomes more clearly defined, the methodologies will be incorporated into the fire PRA and may potentially result in an increase in baseline risk which will be well within the anticipated reduction due to future reduction of conservatisms associated with current fire frequency and fire damage assumptions. For this application, the use of additional dedicated operations staff in the field and in the main control room to monitor the performance of the available pumps and take action as necessary (as described in Section 2.3.1.2 of the LAR) directly provides additional mitigation against a loss of instrumentation from a fire or other event.

3. The Balance of Plant (BOP) (NUREG/CR-6850 Task 2) - The BOP is not fully treated in the current fire PRA model. BOP support system failure has been conservatively assumed in cases where details regarding associated cable routing have not been obtained for the FPRA. Additional modeling may be performed in future FPRA model updates to reduce the baseline fire CDF due to this assumption if the need arises.

Conservatisms in the analysis associated with the assumption that BOP systems are unavailable post-fire do not result in a train specific impact on the baseline or SX application fire risk. Reduction in this area of conservatism will Page 6 of 24

BY-LAR-003, REVISION 1 result in an overall reduction of the estimated fire risk.

4. Large Early Release Frequency (LERF) (NUREG/CR-6850 Task 2 and 5) -

LERF is not considered in the current fire PRA model; it is expected to be addressed in a future update. The fire risk impact on LERF quantification would normally be expected to be primarily associated with the potential fire induced failure of containment boundary components eliminating potential mechanisms for the isolation of paths for large early releases. The ability to isolate such containment boundaries will not be impacted by the SX outage configuration. A review of the internal events LERF results indicates that the change in LERF is very small as compared to the CDF results, and it is expected that the potential impact of the SX application configuration to the fire LERF results would also be negligible.

5. The scoping fire modeling evaluations (NUREG/CR-6850 Tasks 8 and 11) used in the scenario development effort for the Byron FPRA update did not incorporate an evaluation of the potential impact of hot gas layer formation. A practical treatment of hot gas layer formation is not yet available in the industry.

The impact of hot gas layer formation is not expected to be a significant contributor to risk at a newer plant such as Byron with typically large volumes for dissipation of a hot gas layer. The anticipated fire brigade response to fires will result in control of a fire prior to creation of a significant hot gas layer. Any impact of hot gas layer formation would be applicable to both the baseline and SX CT application quantification and is not likely to alter the risk insights obtained from the current evaluation.

6. Limited Analysis Iterations (NUREG/CR-6850 Task 9-12) - The process of conducting a FPRA is iterative, whereby high risk compartments and associated conservative assumptions are identified and additional analyses are performed to refine the assumptions and reduce those compartment risks.

The scenarios developed for the Byron FPRA are refined as necessary for a specific application. Such an activity was conducted for the SX LAR: additional focus was applied to those scenarios that might be affected by the impact on SX equipment availability during the extended CT, and the scenarios were modified as necessary (for both the baseline and application specific configuration analyses) to more accurately characterize the risk in these areas. The scope of HRA performed for the FPRA was limited to the failure of operator actions outside control room. For specific scenarios where Page 7 of 24

BY-LAR-003, REVISION 1 substantial time is available (see response in item 2 above) credit is taken for these actions using screening HEPs. HEPs for control room actions were not modified to attempt to incorporate the impact of fire. The key HEPs associated with control room actions reflect high stress actions which are unlikely to be further increased by the fire. In addition, the compensatory action to provide dedicated operations monitoring of the SX system during this evolution will allow the operators to focus on evaluation of any failures and will allow for prompt response by dedicated personnel thus significantly reducing the failure probability of such actions. Further iteration and refinement of the fire scenarios is expected to reduce both the overall baseline and SX application specific fire risk.

7. Multi-Compartment Review (NUREG/CR-6850 Task 11) - This subtask has not yet been performed for the Byron FPRA. This task would review the fire analysis compartment boundaries to ensure they are sufficiently robust to prevent the spread of fire between FPRA analysis compartments or that such propagations are adequately addressed by the developed scenarios. The design and plant layout of Byron make fire propagation to multiple compartments unlikely compared to the fire risk in individual compartments.

As discussed in item 5 above, hot gas layer impacts, including potential impacts on structural steel required to support fire barriers, are expected to be limited for the Byron plant. The potential for such hot gas layer buildup to result in fire spreading between fire compartments is expected to be even more limited. Any such impacts will not be train specific and are not expected to significantly impact the areas of high risk identified for this SX CT application.

8. Control Room Abandonment Analysis (NUREG/CR-6850 Task 11) - Detailed analysis of control room abandonment scenarios incorporating fire modeling of the postulated spectrum of fires considered in conjunction with the operating modes of the control room HVAC system has not been performed. The proposed SX maintenance configuration does not create unique control room abandonment response requirements. The ability to control SX given the need for control room abandonment will not be affected, as controls for both units trains are available at the remote shutdown panels.

9. Seismic Fire Interactions (NUREG/CR-6850 Task 13) - This task reviews previous assessments to identify any specific interaction between suppression system and credited components or adverse impact of fire protection system interactions that should be accounted for in the FPRA. The results of the IPEEE Page 8 of 24

BY-LAR-003, REVISION 1 are considered appropriate for the Byron FPRA in this regard. NUREG/CR-6850 does not require a quantification of the seismic fire interaction risk. Seismic fire interaction methodologies specified in NUREG/CR-6850 do not result in quantifiable results which would impact the fire PRA model. Any potential vulnerabilities are not expected to be train specific. Therefore, seismic fire contribution to overall fire risk is expected to be very small at Byron, and would not affect the conclusions of the analyses supporting the SX CT LAR.

10. Uncertainty and Sensitivity Analysis (NUREG/CR-6850 Task 15) - This task explores the impacts of possible variation of input parameters used in the development of the model and the inputs to the analysis on the FPRA results.

This task has not yet been performed for the Byron FPRA because the industry is still developing appropriate methodology for the analysis. The conservative nature of the current analysis inputs (ignition frequency and extent of fire damage) ensure that the overall fire risk estimated is conservative and such conservatism is not train specific, and will therefore not impact the SX CT application risk in a manner different than it would impact the baseline fire risk.

11. Conservatisms in the NUREG/CR-6850 methodology associated with ignition frequencies and their correlation to heat release rates as well as the credit given for manual fire suppression response tend to cause an overestimation of total fire risk. However, the model, with this conservatism, will continue to provide a reasonable assessment of relative fire risk between various locations within the plant. This information provides useful insights for the current fire risk profile as well as for assessment of the impact of future applications on the total plant fire risk.

To reduce the conservatism associated with this aspect (heat release rates) of the NUREG/CR-6850 methodology, the transient heat release rate used in the Byron FPRA was based on the heat release rate specified in NUREG/CR-6850 as the heat release rate associated with a motor fire (for any size motor). This deviation in the methodology was implemented based on a review of the EPRI Fire Events Database for fires categorized as transient fires. This review determined that the vast majority of transient fires are associated with electrical cable fires related to temporary cable installations. The temporary cable and its insulation was the transient combustible and a fault in the associated electrical circuit provided the necessary ignition source to create the transient fire. The motor fire more closely represents these types of transient fires than a transient combustible heat release rate which is associated with a large quantity of Page 9 of 24

BY-LAR-003, REVISION 1 transient combustibles which are unlikely to contain or be exposed to an ignition source. The quantification results for this application include an additional conservatism associated with the implementation of compensatory actions that are not credited in the FPRA quantification. These compensatory actions provide a significant reduction in risk during the SX system outage which if quantified would further reduce the increased risk associated with this application. Quantification of these compensatory actions was not attempted since no clear guideline exists for crediting such compensatory actions with respect to the FPRA methodology. Question 1.c: Describe how spurious component operations are addressed in the fire PRA model.

Response

See response to RAI 1.b, item 1, above. Question 1.d: Describe how plant components modeled in the PRA, but not in the scope of the plants fire safe shutdown licensing basis, have been addressed in the fire PRA. Specifically identify how cable route information for such components is handled if these components are credited in the fire PRA.

Response

Components for which fire routing data is not available via the safe shutdown analysis are assumed to be failed in all fire zones in the FPRA. However, such assumed failure has been excluded for particular plant locations when that location has been judged to be unlikely to include cables for specific systems which are normally assumed to be failed. This exclusion approach was used in a limited number of fire scenarios. One set of scenarios where it was used is in the SX pump room in which the auxiliary building HVAC components, which are not routed in the SSD analysis, were assumed to be available for fires in the SX pump rooms. The basis for this exclusion of failure of the auxiliary building HVAC components is related to the remote location of the SX pump room (in the basement of the auxiliary building) and the lack of auxiliary building HVAC components and power supplies located in the pump room which could impact other auxiliary building areas. The SX pumps are cooled by dedicated emergency cooling units which are separate from the auxiliary building HVAC system. Therefore, exclusion Page 10 of 24

BY-LAR-003, REVISION 1 of this auxiliary building HVAC impact is determined to be more realistic. Question 1.e: Identify how the human reliability analysis was modified for the fire PRA to account for the impacts of fire on these actions; identify any fire-specific recovery actions credited in the fire PRA, their failure probabilities, and the basis for the probabilities.

Response

See response to RAI 1.b, items 2 and 6, above. Question 1.f: No large early-release frequency analysis was completed for fires, justified based on no impact of service water on containment isolation capability. Provide a more specific justification based on the fire PRA results obtained evaluating the specific sequences which dominate the fire risk profile and their conditional probability of a large early release.

Response

See response to RAI 1.b, item 4, above. Question 1.g: Identify the reviews (internal, external, and/or peer) completed for the fire PRA model to assure its quality.

Response

The methodology used for the EXELON fire PRA has been consistently applied at many of the EXELON sites and has been reviewed as part of the fire PRA documentation review process. In addition, a challenge review by engineers performing fire PRAs on other EXELON projects has been performed and the results incorporated into the Byron fire PRA. 2.1.2 NRC Statement: The licensee has not specifically addressed how the cause/effect relationship was modeled in the PRA for this application. Page 11 of 24

BY-LAR-003, REVISION 1 Question 2.a: Describe which basic event(s) in the PRA models (internal events and fire PRA) were modified to evaluate the SX outage, including the separate impacts on mitigation and initiating events.

Response

The maintenance terms for the 1A and 2A SX pumps were set to True for the quantification of the results supporting this LAR. These events fail the 1A and 2A SX pumps in the PRA model logic which reflects the expected plant configuration. This is applicable to the Internal Events and Fire models. The Byron PRA model has links to automatically adjust the initiating events for loss of SX events when either a single SX pump or 2 SX pumps of the same train on different units are unavailable. The maintenance terms associated with the following equipment were set to False in the quantification of the results supporting this LAR. These terms correspond in part to the list of items contained in Table 3 of the LAR. Setting these terms to False reflects the intent to maintain this equipment function in an available state. This is applicable to the Internal Events and Fire models. 0A Fire Protection Pump 0B Fire Protection Pump 1SX005 - SX Unit Cross-tie Valve 2SX005 - SX Unit Cross-tie Valve Aux Building Ventilation Supply and Exhaust Plenums (Unit 1) Unit 1 1A Auxiliary Feedwater Train Unit 1 1B Auxiliary Feedwater Train Unit 1 Start-up Transformer (SAT 142) Unit 2 Start-up Transformer (SAT 242) Unit 1 Bus 141 Div 1 4160VAC ESF Bus Unit 1 Bus 142 Div 2 4160VAC ESF Bus Unit 2 Bus 241 Div 1 4160VAC ESF Bus Unit 2 Bus 242 Div 2 4160VAC ESF Bus Unit 1 Component Cooling Water Heat Exchanger Unit 1 125VDC Div 1 Battery Charger Unit 1 125VDC Div 2 Battery Charger Unit 2 125VDC Div 1 Battery Charger Unit 2 125VDC Div 2 Battery Charger Unit 1 1A Emergency Diesel Generator Unit 1 1B Emergency Diesel Generator Unit 2 2A Emergency Diesel Generator Unit 2 2B Emergency Diesel Generator Page 12 of 24

BY-LAR-003, REVISION 1 Unit 1 120VAC Instrument Power Inverter 1IP111 Unit 1 120VAC Instrument Power Inverter 1IP112 Unit 1 120VAC Instrument Power Inverter 1IP113 Unit 1 120VAC Instrument Power Inverter 1IP114 Unit 1 1B Essential Service Water (SX) Pump Unit 2 2B Essential Service Water (SX) Pump Unit 1 1SX033 - SX Train Cross-tie Valve Unit 1 1SX034 - SX Train Cross-tie Valve Unit 2 2SX033 - SX Train Cross-tie Valve Unit 2 2SX034 - SX Train Cross-tie Valve One of the compensatory actions utilized in this quantification was to have one of the SX005 valves in the Open position. This enhances the likelihood of success in providing SX cooling from the opposite Unit. To facilitate the credit for this condition the failure to open term for the 2SX005 valve was set to False. This is applicable to the Internal Events and Fire models. Another compensatory action was to perform the action to isolate one train of the Reactor Containment Fan Coolers (RCFC) to insure adequate flow is available for equipment cooling from the SX system. This action was addressed in the quantification by setting the Unit 2 Operator Action basic event associated with the isolation of the Unit 2 RCFC flowpath to False. This is applicable to the Internal Events and Fire models. Dependency between SX Crosstie and Fire Protection Alternate Cooling Alignment to CV pumps operator actions The Base PRA model assumes a high dependency between the SX Crosstie and Fire Protection Alternate Cooling Alignment to the CV pumps operator actions where the probability of the Fire Protection operator action basic event is set to 0.51. With the use of dedicated SX operators for the duration of 1/2SX001A valves replacement, the dependency between these two operator actions can be eliminated. In the sensitivity analysis, a low dependency is assumed, and the basic event probability is set to 0.051 which is incorporated in the quantification of the results. This is applicable to the Internal Events and Fire models. Dependency between SX Crosstie and Establishment of a Cool Suction Source for the CV pumps operator actions The Base PRA model does not consider the dependency between the operator actions for the SX Crosstie and establishment of a cool suction source for the CV pumps. The SX Crosstie action is based on 1BOA PRI-7, "Essential Service Water Malfunction Unit 1" and takes its initial cue from Loss of SX (LOSX) indications where the following annunciator or indications may cause entry into the SX MALFUNCTION procedure: Abnormal temperatures on equipment cooled by SX. SX PUMP TRIP (1-2-A1) Page 13 of 24

BY-LAR-003, REVISION 1 SX PUMP DSCH HDR PRESS LOW (1-2-A2) The operator action to establish a cool suction source for the CV pumps is based on 1BOA PRI-6, "Component Cooling Malfunction Unit 1", Step 1a Response Not Obtained where the initial cue is provided by CC surge tank level < 13%. There is no direct dependence between the two actions, but the time windows may be overlapping since LOSX will lead to loss of Component Cooling Water (CCW). Therefore, upon reviewing the dependence between the two actions, it was determined that a medium dependence should be assigned between the two actions. The associated basic event for this operator action was added in the recovery file QRX-6E-SX04.txt to account for the medium dependence between two actions. This change was incorporated into the base model quantification for this evaluation. For the planned plant configuration, this dependence will be removed with the use of dedicated SX operators during 1/2SX001A work window. This is applicable to the Internal Events and Fire models. Question 2.b: Describe how any compensatory measures have been credited in the analysis, addressing both the baseline model and the configuration-specific assessment.

Response

As described in the response to 2.a above, several maintenance terms were set to False to reflect the prohibition of performing maintenance activities on those components while in this specific plant configuration. In the base PRA model these terms would be set to the associated probability as defined in the model documentation. Dedicated operations personnel provide the basis for a reduction in the dependency of two operator actions, performing the crosstie of the SX system between units and implementation of the alternate cooling to the CV pump lube oil coolers from the Fire Protection system. For the configuration specific evaluation, this probability has been reduced to 0.051 to reflect the reduction in the dependency from the establishment of dedicated operations personnel. In the base PRA model, there is no credit for the use of dedicated operations personnel as planned for the replacement of the 1(2)SX001A valves. This dependency is accounted for in the Base PRA model by setting the probability for the operator action to align fire protection alternate cooling to the CV pumps given failure to cross-tie the SX systems (1FP-PRI-7X-HMVCA) basic event to 0.51. Question 2.c: Page 14 of 24

BY-LAR-003, REVISION 1 Identify whether recovery of inoperable SX pumps is credited, either for mitigation or for the calculation of initiating event frequency, and if so, justify the recovery probability applied.

Response

No recovery of the 1A or 2A SX pumps is credited in the analysis supporting this one-time CT extension. Question 2.d: Provide a sensitivity analysis for crediting any compensatory measures or recovery actions, which are unique for this evaluation.

Response

The following information is provided to address this question. Table 2.d-1 lists the sensitivity cases referenced in question 2.d that were performed for this LAR. Additional sensitivities performed to address modeling uncertainty are discussed in Attachment 7 to the LAR. The results from these sensitivity cases are provided in Table 2.d-2. Page 15 of 24

BY-LAR-003, REVISION 1 Table 2.d Sensitivity Cases Case Description B12CE The base case is quantified and compared to Rev. 6E1 results to ensure the correct model is used. B12E-SX SX LAR CDF - All Compensatory Actions The model is quantified for the configuration considering both mechanical compensatory measures and the impact from dedicated SX operators. B12E-SX01 SX LAR Sensitivity 1 - No Compensatory Actions The model is quantified for the configuration with no compensatory measures to assess the risk impact of the configuration, and to help determine compensatory measures. B12E-SX02 SX LAR Sensitivity 2 - Only Mechanical Compensatory Actions The model is quantified for the configuration considering mechanical compensatory measures to determine the risk reduction achieved with mechanical compensatory measures. B12E-SX03 SX LAR Sensitivity 3 - OA Dependency with SX Cross-tie (SX-XTIE) Operator Action The model is quantified for the configuration with dedicated SX operator as only compensatory measure to assess the impact from dedicated SX operators. The low dependency between SX Cross-tie operator action (0SX-XTIE---HMVOA) and alignment of fire protection alternate cooling to CV pumps (1FP-PRI-7X-HMVCA) is assumed, instead of high dependency as in the base model. B12E-SX04 SX LAR Sensitivity 4 - OA Dependency with CV-ALL Action The model is quantified for the configuration assuming a medium dependency between SX Cross-tie (0SX-XTIE---HMVOA) and establishment of a cool suction source for the CV pumps (1CV-ALL---- HPMOA) operator actions. The base model does not account for dependency between these actions, but the dependency between these two actions will be eliminated with dedicated SX operators. Table 2.d-2 Sensitivity Case Results T(ct) Acceptance Case Case Descriptions CDF(0) CDF(1) ICCDP RIF (days) Criteria B12CE Byron Base CDF for B12 Configuration 1.80E-05 B12E-SX SX LAR CDF - All Compensatory Actions 1.80E-05 2.59E-05 1.29E-07 6 < 5.0E-07 1.44 SX LAR Sensitivity 1 - No Compensatory B12E-SX01 1.80E-05 7.58E-05 9.50E-07 6 < 5.0E-07 4.20 Actions SX LAR Sensitivity 2 - Only Mechanical B12E-SX02 1.80E-05 6.59E-05 7.86E-07 6 < 5.0E-07 3.65 Comp Actions SX LAR Sensitivity 3 - OA Dependency B12E-SX03 1.80E-05 3.58E-05 2.93E-07 6 < 5.0E-07 1.99 with SX-XTIE Action SX LAR Sensitivity 4 - OA Dependency B12E-SX04 1.80E-05 2.59E-05 1.29E-07 6 < 5.0E-07 1.44 with CV-ALL Action Page 16 of 24

BY-LAR-003, REVISION 1 2.1.3 NRC Statement: The tier 2 evaluation identifies compensatory measures in Table 3, Byron SX A Train Outage Summary of Compensatory Measures, in of the LAR as regulatory commitments, but the description of these items is vague. Question 3.a: Describe specifically what restrictions on availability are being committed by use of the term protected equipment.

Response

Equipment listed as "protected" will be subject to the following restrictions: No intrusive maintenance that would render or potentially render the equipment incapable of performing its function. Monitoring of equipment performance, such as during operator rounds, to insure reliability of the equipment is maintained and any indication of degrading performance is identified early, is allowed. Exelon has developed procedure, OP-AA-108-117, "Protected Equipment Program", that provides guidance on the protection of equipment associated with the Configuration Risk Management program. This procedure will be implemented at Byron station by the start of the B2R15 outage where the 1(2)SX001A valve replacement is scheduled. This procedure provides the guidance described below regarding "protected equipment". Step 4.4.2 of this procedure provides the following specific guidance on work activities: 4.4.2 The following evolutions should not be performed on protected equipment: x Corrective or elective maintenance, x Preventative maintenance which is intrusive in nature, x Preventative maintenance or non-critical surveillance testing where an unsatisfactory outcome could render the equipment unavailable, x Any evolution where human performance error could result in damage to or loss of the protected equipment unless the Shift Manager agrees there is reasonable assurance that no adverse effects could occur, x Equipment or system operation which renders the protected equipment unavailable, or x Work on electrical sources that could fault switchgear or load control centers. This procedure also provides the following guidance for allowed activities in step 4.4.1: 4.4.1 Generally, work on or within 2 feet of protected equipment will not be allowed. Page 17 of 24

BY-LAR-003, REVISION 1 Exceptions to this rule are as follows: x Operator performing rounds, inspections, and alarm response. x Fire Brigade Members and the Medical Response Team during response to emergencies. x Personnel performing Abnormal Operating Procedures / Emergency Operating Procedures / Emergency Plan actions. x Security Officers who have received an appropriate brief from Shift Management and are performing their official rounds or alarm response. x Radiation Protection personnel performing non-intrusive radiological surveys and are responding to radiation alarms / changing plant conditions. x Fire Patrols who have received an appropriate brief from Shift Management and are performing their official duties. x Electrical and instrument maintenance activities on loads supplied by protected switchgear, load control center, or vital instrument busses provided that the load is isolated from the protected equipment by a clearance or over-current protection (e.g. fuse or breaker) is available to isolate the protected power supply from equipment fault or personnel error at an energized work location. x Changing burned out light bulbs. x Other activities as approved by the Shift Manager. Question 3.b: Identify specifically each component which is protected, without the use of undefined plant acronyms.

Response

The equipment listed in Table 3 of the LAR is repeated here with an equipment description: 0A Fire Protection Pump 0B Fire Protection Pump 1SX005 - SX Unit Cross-tie Valve 2SX005 - SX Unit Cross-tie Valve Aux Building Ventilation Supply and Exhaust Plenums (Unit 1) Unit 1 1A Auxiliary Feedwater Train Unit 1 1B Auxiliary Feedwater Train Unit 2 2A Auxiliary Feedwater Train Unit 1 Start-up Transformer (SAT 142) Unit 2 Start-up Transformer (SAT 242) Unit 1 Bus 141 Div 1 4160VAC ESF Bus Page 18 of 24

BY-LAR-003, REVISION 1 Unit 1 Bus 142 Div 2 4160VAC ESF Bus Unit 2 Bus 241 Div 1 4160VAC ESF Bus Unit 2 Bus 242 Div 2 4160VAC ESF Bus Unit 0 Component Cooling Water Heat Exchanger Unit 1 Component Cooling Water Heat Exchanger Unit 2 Component Cooling Water Heat Exchanger Unit 1 125VDC Div 1 Battery & Battery Charger Unit 1 125VDC Div 2 Battery & Battery Charger Unit 2 125VDC Div 1 Battery & Battery Charger Unit 2 125VDC Div 2 Battery & Battery Charger Unit 1 1A Emergency Diesel Generator Unit 1 1B Emergency Diesel Generator Unit 2 2A Emergency Diesel Generator Unit 2 2B Emergency Diesel Generator Unit 1 120VAC Instrument Power Inverter 1IP111 Unit 1 120VAC Instrument Power Inverter 1IP112 Unit 1 120VAC Instrument Power Inverter 1IP113 Unit 1 120VAC Instrument Power Inverter 1IP114 Unit 1 1B Essential Service Water (SX) Pump Unit 2 2B Essential Service Water (SX) Pump Unit 1 1SX033 - SX Train Cross-tie Valve Unit 1 1SX034 - SX Train Cross-tie Valve Unit 2 2SX033 - SX Train Cross-tie Valve Unit 2 2SX034 - SX Train Cross-tie Valve Station Switchyard - Offsite Power Supplies Unit 1 1A CV Pump Alternate Cooling - Alternate Cooling to the Centrifugal Charging Water pumps from the Fire Protection system Unit 1 1B CV Pump Alternate Cooling - Alternate Cooling to the Centrifugal Charging Water pumps from the Fire Protection system Unit 2 2B Component Cooling Water train Unit 2 2A Centrifugal Charging Water (CV) train or Unit 2 2A Safety Injection (SI) train OR Unit 2 2B Centrifugal Charging Water (CV) train or Unit 2 2B Safety Injection (SI) train Unit 2 2A Residual Heat Removal train or Unit 2 2B Residual Heat Removal train Spent Fuel Pool Cooling - Maintain 1 train available Unit 1 Safety Injection (SI) signals - Prohibit surveillance testing on Solid State Protection System (SSPS) / Engineered Safeguards Feature Actuation System (ESFAS) SI logic Question 3.c: Describe the process applied and basis to determine the scope of the protected equipment. Page 19 of 24

BY-LAR-003, REVISION 1

Response

The results from the previous submittal for a one-time CT extension were reviewed to capture the insights from that analysis related to equipment availability. These results were then compared against the current model results to compare insights, again related to equipment availability. The results of these reviews provided a list of equipment functions that had importance for the planned plant configuration. This list formed the basis for the equipment functions shown in Table 3 in the LAR. Question 3.d: Describe the fire zones qualitatively, and identify how these zones were selected for a compensatory measure.

Response

The following fire zones were identified as part of the insights gained from the fire PRA model to enhance defense-in-depth and improve the risk profile for the planed station configuration: x 5.1-1 Division 12 ESF switchgear room (focus on switchgear 142) x 11.3-0 Auxiliary building general area, elev, 364 (focus on MCC 132X1) x 11.1B-0 Unit 2 auxiliary building basement (SX B Train Pump Room) x 11.6-1 Division 12 containment electrical penetration area x 11.6-0 Aux building general area elev. 426 (focus on SWGR 134X) x 11.3-1 Unit 1 containment pipe penetration area (focus on MCC 131X1) x 11.4-0 Aux building general area, elev. 383 (focus on 1AF01PA, 2AF01PA and MCC 132X3) x 5.5-1 Unit 1 auxiliary electrical equipment room (focus on 1PA23J) x 5.2-1 Division 11 ESF switchgear room (focus on switchgear 141) These zones contain fire scenarios which are the highest fire risk scenarios in the CT extension configuration fire PRA quantification. 2.1.4 NRC Question: In Attachment 5 of the LAR, the tier 3 evaluation identifies the plant Configuration Risk Management Program being applied to assess risk of emergent conditions. However, as identified in RG 1.177, An Approach for Plant-Specific, Risk-Informed Decisionmaking: Technical Specifications, there is no discussion of how external event risk, specifically fire risk, which comprises 90 percent of the total risk reported for this TS change, is assessed within the tier 3 evaluation. Describe how this significant risk contributor is evaluated. Page 20 of 24

BY-LAR-003, REVISION 1

Response

Evaluation of risk insights from both the internal events and fire PRA results was performed with the identification of risk management actions for the planned configuration. Should there be any planned or emergent changes to the analyzed configuration, the impact of the changes will be evaluated to determine if there is any significant impact on internal events and fire PRA risk insights to confirm that appropriate risk management actions have been defined and are in place. 2.1.5 NRC Question: The LAR identifies the use of the fire protection system to maintain flow from the charging pumps to the reactor coolant pump seals, using dedicated operators and non-seismic connections. The NRC staffs understanding of the current guidance is that seal cooling cannot be restored after about 10 - 15 minutes of interruption, due to seal heatup and concerns for thermal shock of the seals. Provide a more detailed discussion of this action as to the duration of the action, and impact on interruption of reactor coolant pump seal cooling and any relevant assumptions made regarding seal performance upon restoration of cooling.

Response

The action consists of providing a connection from the Fire Protection system to the lube oil cooler for the charging pump. There are separate connections for each of the charging pumps. The hose connection from the fire protection system is staged and the connections to the SX cooling water lines use a "quick connect" style connection. The guidance to perform this action is provided in station procedure 1(2)BOA PRI-7, "Essential Service Water Malfunction Unit 1(2)", Attachment B. It should be noted that the direction provided by this procedure does not secure the associated charging pump, so RCP seal cooling is not lost during this evolution. These steps direct the connection of the hose and manipulation of the associated manual valves to isolate the SX portion of the cooling water supply and opening of the fire protection supply. This action is routinely covered in Operations Requalification training through the Job Performance Measure mechanism to evaluate operator performance. Times to perform the action, based on input from the Operations Training organization are on the order of 10 minutes. Another method of providing cooling to the charging pumps is through the use of fire protection pumps cross-tied into the SX system as directed by procedure 0BOA PRI-7, "Loss of Ultimate Heat Sink". At the present time, this capability is not credited in the Byron PRA model. Upon Loss of Dual Unit SX system (i.e., Loss of Ultimate Heat Sink), 0BOA PRI-7 directs the operators to crosstie FP system to SX system. This crosstie is not credited in the PRA model and SX CT LAR sensitivity analysis. This is conservative where an alt ernate success path for CV Pump lube oil cooling is not credited. Page 21 of 24

BY-LAR-003, REVISION 1 2.1.6 NRC Question: Throughout the submittal, reference is made to RG 1.174, An Approach for Using Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis, July 1998. However, the current version of RG 1.174 is dated November 2002. Explain why the current version of RG 1.174 was not used as a basis for this submittal.

Response

The reference to the 1998 version of RG 1.174 was a "cut and paste" error associated with the previous SX one-time CT extension. The evaluation performed to support this submittal was based on RG 1.174, Revision 1, dated November 2002. 2.1.7 NRC Statement: NUREG-0800, Standard Review Plan (SRP) 16.1, Revision 1, Risk-Informed Decision Making: Technical Specifications, describes NRC staff acceptance criteria regarding defense in depth, considerations for Technical Specification (TS) changes. Criteria II.1A.(iii)(3) states that the licensee should consider, Whether the TS change specifies that voluntary removal of equipment from service should not be scheduled when adverse weather conditions or other situations that likely may subject the plant to abnormal conditions are predicted. The licensee has considered adverse weather conditions in its PRA analysis for external events, but has made no specified provision for adverse weather in its TS change in accordance with the guidelines of SRP 16.1, if adverse weather actually occurs. Explain why the TS change (specifically in Attachment 1, Table 3) does not specify that the removal of 1/2SX001A from service will not be scheduled when adverse weather conditions or other situations that likely may subject the plant to abnormal conditions are predicted. The NRC staff notes that implementation of Attachment 1, Table 3 is a regulatory commitment per Attachment 4 of the LAR. Response: Exelon will add the following information to Table 3 - Adverse Environmental Conditions - The one-time extended CT condition will not be entered should adverse environmental conditions exist or are imminent (forecast within the next 12 hours). For the purpose of Table 3 of the submittal, Adverse Environmental Conditions are defined as any of the following: x Area environmental conditions such as icing, wind, or storms causing unexpected repeated station power line trips x Tornado Warning Page 22 of 24

BY-LAR-003, REVISION 1 x Actual switchyard voltage alarms or notifications indicating voltage below that required for offsite source technical specification operability limits x Predicted Unit trip contingency switchyard voltage below minimum required switchyard voltage (unless a site specific analysis has been performed). x Notified that at the current time a condition exists such that if a transmission line or other transmission facility were to trip, then site will be below voltage operability limits. Should Adverse Environmental Conditions develop after the extended CT condition has been entered, then work will proceed to complete the 1(2)SX001A valve replacement. 2.1.8 NRC Statement: The licensee has stated, in Attachment 5 in the LAR, that defense in depth is maintained, in part, because a best estimate flow analysis has shown that a single SX pump can provide cooling on both units with the exception of the Reactor Containment Fan Coolers (RCFC) and Emergency Diesel Generators (EDGs) on the unit without an SX pump and one train of RCFCs on the unit with an available SX pump. Question 8.b: If the SX pump of the operating unit were lost, all RCFCs in the operating unit would lose SX flow. With no RCFCs available in the operating unit, explain why the other means of containment heat removal, i.e., the containment spray system of the operating unit, are not on the protected system list during the extended CT.

Response

The initial premise of the statement in question 8 assumes that a loss of the remaining SX pump on the operating unit leads to a loss of SX for that unit. The Byron SX system design provides for the ability to cross-connect the unit SX supplies through the 1SX005 and 2SX005 valves. The direction to open these valves is provided in procedure 1(2)BOA PRI-7, "Essential Service Water Malfunction Unit 1(2)". As noted in our submittal, two compensatory actions will be implemented to address this potential event and reduce its significance. The first is that one of the SX005 valves will be maintained in the open position for the duration of the 1(2)SX001A valve maintenance. This reduces the actions required to be taken to cross-tie the SX system and enhances the likelihood of successfully performing this action. The second compensatory action is that one train of RCFCs on the shutdown unit will be isolated as a means of reducing the total demand on the SX system. With the SX crosstie between units established, cooling will be provided to one train of Page 23 of 24

BY-LAR-003, REVISION 1 RCFCs. To ensure containment cooling is maintained, the B train of RCFCs will be considered protected for the duration of the extended CT. Containment spray for Byron provides pressure reduction but does not provide a containment heat removal function. The only available means of removing heat from containment post LOCA are the RCFCs and the Residual Heat Removal System. The B Train of the Residual Heat Removal System will also be protected for the duration of the extended CT. Best estimate Thermal-Hydraulic analysis has shown that containment sprays are not required to prevent containment failure during a LOCA or Steam Line Break Inside Containment provided a train of RCFCs is available. Therefore, there is no need to protect a train of Containment Sprays during the extended CT. 3.0

SUMMARY

The above information is provided to address the request for additional information provided by the NRC in Reference 2.

4.0 REFERENCES

1) Exelon Letter RS-09-121, dated September 24, 2009, P. Simpson (Exelon Generation Company, LLC) to U. S. Nuclear Regulatory Commission, "License Amendment Request for a One-Time Extension of the Essential Service Water Train Completion Time" Byron Station, Units 1 and 2, Facility Operating License Nos. NPF-37 and NPF-66, NRC Docket Nos. STN 50-454 and STN 50-455

2) NRC Letter ML93200660, dated December 18, 2009 Letter from M. J. David (U.

S. Nuclear Regulatory Commission) to C. G. Pardee (Exelon Generation Company, LLC), " BYRON STATION, UNIT NOS. 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO ONE-TIME EXTENSION OF ESSENTIAL SERVICE WATER TRAIN COMPLETION TIME (TAC NOS. ME2293 AND ME2294)" Page 24 of 24

ATTACHMENT 3 Supporting Documentation List of Attached Documents

1. 1BOA PRI-7, "Essential Service Water Malfunction Unit 1," Revision 104

2. 2BOA PRI-7, "Essential Service Water Malfunction Unit 2," Revision 105

3. OBOA PRI-7, "Loss of Ultimate Heat Sink Unit 0," Revision 0

4. OP-AA-108-117, "Protected Equipment Program," Revision 0

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* A. PURPOSE This procedure provides actions required in the event of a malfunction of the Essential Service Water system. B. SYMPTOMS OR ENTRY CONDITIONS

1) The following conditions may cause entry into this procedure:

o SX basin level rapidly dropping. o Indications of a SX break in the Aux Bldg. o Indications of a SX break in the CNMT. o Abnormal temperatures on equipment cooled by SX.

2) The following annunciators may cause entry into this procedure:

o CNMT DRAIN LEAK DETECT FLOW HIGH (1-1-A2) o SX PUMP TRIP (1-2-A1) o SX PUMP DSCH HDR PRESS LOW (1-2-A2) o SX PUMP DSCH HDR TEMP HIGH LOW (1-2-B2) o SX PUMP SUCT PRESS LOW (1-2-C1) o SX STRN DP HIGH (1-2-C2) o SX PUMP SUCT VLV PIT LEVEL HIGH (1-2-D2) o SX MAKEUP PP AUTO START (0-37-B7) o SX CLG TWR BASIN LEVEL HIGH LOW (0-37-A8) o SX CLG TWR LOW SPEED FAN TRIP (0-37-A6) o SX CLG TWR HIGH SPEED FAN TRIP (0-37-B6) Page 1 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• With this procedure in effect the *
• Emergency Director shall evaluate *
• for EMERGENCY PLAN conditions. *
• NOTE *
• Both Units may be affected by a *
• malfunction in one or both Essential *
• Service Water trains. *
• NOTE *
• If a loss of SX is due to a loss of *
• the SX MDCT, 0BOA PRI-7. LOSS OF *
• ULTIMATE HEAT SINK should be *
• referenced. *

  $)&$,
49
16.14
   $)&$,
49
16.14

a. SX pump(s) - AT LEAST ONE a. Perform the following to RUNNING start the standby pump:

1) Manually open RCFC SX inlet and outlet valves:

o 1A SX pump: 1SX016A 1SX027A o 1B SX pump: 1SX016B 1SX027B Step continued on next page Page 2 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 1 (continued)

2) Start the SX pump.

IF the pump can NOT be started, THEN (0
50 ATTACHMENT A (Page 18). IF NO SX pump is available on Unit 2, THEN (0
50 0BOA PRI-7. LOSS OF ULTIMATE HEAT SINK.

b. SX STRN DP HIGH (1-2-C2) - NOT b. Locally backwash LIT strainer(s) per BOP SX-4, ESSENTIAL SERVICE WATER STRAINER MANUAL OPERATION.

c. SX PUMP DSCH HDR PRESS LOW c. Perform the following:

(1-2-A2) - NOT LIT

1) Start an additional SX pump.

2) Locally verify the SX Strainers are NOT backwashing.

3) Locally adjust SX outlet from CC heat exchanger valve(s) while maintaining outlet temperature(s) less than 105 105F (Normal) 120 120F (RH in S/D Cooling) 130 130F (Post LOCA):

o 1SX007 (346 M16) o 0SX007 (346 L16 AB1) Step continued on next page Page 3 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 1 (continued) IF SX pump discharge header pressure can NOT be restored, THEN perform the following:

1) Monitor temperatures to equipment cooled by SX.

2) Shutdown ANY unnecessary equipment:

o DG(s) o MCR chiller(s) o SI pump(s) o RCFC(s) o CNMT chiller(s)

3) Close the SX outlet valve for ANY shutdown RCFC train(s):

o 1SX027A o 1SX027B

4) IF CENT CHG pump temperatures are approaching the limits of TABLE A (Page 25),

THEN align FP to CENT CHG pump lube oil cooler per ATTACHMENT B (Page 23) while continuing with this procedure: o CENT CHG pump 1A o CENT CHG pump 1B

5) Shutdown any vital equipment exceeding the limits of TABLE A (Page 25).

Step continued on next page Page 4 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 1 (continued)

6) At Shift Manager discretion align 6/*5


SX to cool unit 1 CC loads via the Unit 0 CC HX: a) Open CC HX 0 SX inlet valve: 2SX005 (330 P19 AB2) b) Open CC HX 0 SX outlet valve: 0SX146 0SX147 c) Align the Unit 0 CC HX to Unit 1 per BOP CC-10, ALIGNMENT OF THE U-0 CC PUMP AND U-0 HX TO A UNIT.

d. Locally check tripped SX d. Perform the following:

pump(s) - NOT ROTATING

1) Dispatch an operator to energize the affected pump's suction valve:

o 1SX001A at 131X3 cub E4 o 1SX001B at 132X1 cub C1

2) Close the affected pump's suction valve:

o 1SX001A o 1SX001B Page 5 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  $)&$,
49
16.1
%*4$)"3(&
)&"%&3 5&.1&3"563&

5&.1&3"563&

a. Temperature - GREATER THAN 50 F 50 a. Perform the following:

1) Verify SX tower hot water basin bypass valves for running pumps are OPEN:

o 1A SX pump: o 0SX162A o 0SX162C o 1B SX pump: o 0SX162B o 0SX162D

2) Stop ALL SX tower fans:

0SX03CA through 0SX03CH Step continued on next page Page 6 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 2 (continued)

b. Temperature - LESS THAN 80 80F b. Start ALL SX tower fans by performing the following:

1) Open ALL riser valves:

0SX163A through 0SX163H

2) Verify the hot water basin bypass valves are closed:

0SX162A 0SX162B 0SX162C 0SX162D

3) Start ALL fans in high speed:

0SX03CA through 0SX03CH

4) IF any fan fails to start in high speed, THEN close its associated riser valve unless needed for the running SX pump(s) return flowpath(s).

5) Refer to Tech Spec 3.7.9.

Step continued on next page Page 7 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 2 (continued) IF ALL SX tower fans fail to start, THEN perform the following to establish an alternate method of SX cooling:

1) Verify WW sand filters are shutdown.

2) Close both SX basin CW makeup valves:

0CW100A 0CW100B

3) Establish WW makeup flow to SX basins from the MCR:

a) Place WW makeup valves in AUTO: 0WW019A 0WW019B b) Place SX basin level controllers in MANUAL and raise demand until WW makeup valves indicate dual valve position: 0LK-SX064 0LK-SX065 c) Start both WW pumps.

4) Verify SX blowdown flow established.

0SX161A (400 C6 GL) 0SX161B (400 C6 GL) Step continued on next page Page 8 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 2 (continued)

5) Adjust SX basin level controllers as necessary to maintain SX basin levels between 90% to 100%

100%.. IF WW makeup flow can NOT be established from the MCR, THEN perform the following:

1) Dispatch an operator to locally open WW makeup valves:

0WW019A (860 J1 SXCT) 0WW019B (860 J1 SXCT)

2) Start both WW pumps.

3) Locally throttle WW makeup valve(s) as necessary to maintain basin levels between 90% to 100%

100%. Page 9 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• A loss of IA pressure will cause the *
• SX basin levels indication to slowly *
• fail low as the IA header *
• depressurizes. *
• NOTE *
• The SX tower basins are crosstied *
• above 64%64%.

                             . A leak from one basin      *

• will cause both basin levels to *
• drop. *

  $)&$,
49
508&3
#"4*/
   $)&$,
49
508&3
#"4*/

a. Level - LESS THAN 100% a. Perform the following:

1) Close any open SX basin CW makeup valve(s):

o 0CW100A o 0CW100B

2) Secure WW makeup to SX basins:

a) Stop any running deep well pump(s) aligned to a SX basin. b) Close associated SX basin deep well makeup valve(s): o 0WW019A o 0WW019B

3) Stop running SX makeup pump(s).

4) Realign riser and bypass valves as necessary to maintain basin levels.

Step continued on next page Page 10 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 3 (continued)

5) Dispatch operator to check for basin overflow.

b. Level - GREATER THAN 80% AND b. Perform the following:

STABLE

1) Makeup to SX basin(s) as necessary to restore level:

o Establish CW makeup:

1) Place CW makeup valve(s) in AUTO:

o 0CW100A o 0CW100B

2) Adjust SX basin level controller(s) as necessary to restore level:

o 0LK-SX064 o 0LK-SX065 o Establish WW makeup:

1) Place WW makeup valve(s) in AUTO:

o 0WW019A o 0WW019B

2) Place SX basin level controller(s) in MANUAL and raise demand until WW makeup valve(s) indicate dual valve position:

o 0LK-SX064 o 0LK-SX065

3) Start WW pump(s).

Step continued on next page Page 11 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 3 (continued)

2) Dispatch an operator to close SX blowdown valves:

0SX161A (400 C6 GL) 0SX161B (400 C6 GL)

3) Dispatch Operator to look for leaks SXCT area.

4) Verify SX strainer backwash isolated.

IF basin level continues to drop then start both SX makeup pumps.

c. Level - GREATER THAN 60% c. Perform the following:

1) Dispatch operator(s) to check for leaks in the Aux Bldg.

2) Verify both SX makeup pumps running.

3) Shutdown ANY equipment exceeding the limits of TABLE A (Page 25).

4) Refer to Tech Spec 3.7.9.

Page 12 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  $)&$,
$$
065-&5
5&.1&3"563&
   $)&$,
$$
065-&5
5&.1&3"563&

a. CC heat exchanger outlet a. Perform the following:

temperature(s) - LESS THAN 105 105F: 1) Locally throttle SX outlet from CC heat 1TI-674 (Unit 1 CC HX) exchanger valve(s) to 0TI-675 (Unit 0 CC HX) maintain CC temperature less than 105 105F: o 1SX007 (346 M16) o 0SX007 (346 L16 AB1)

2) IF RCP THERMAL BARR CC WTR TEMP HIGH (1-7-E3) is LIT, THEN maintain seal injection flow between 8 GPM and 13 GPM per pump.

Page 13 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  $)&$,
49
4:45&.
*/5"$5
   $)&$,
49
4:45&.
*/5"$5

a. Running CENT CHG pump oil a. Align emergency FP cooling temperature(s) - NORMAL per ATTACHMENT B (Page 23).

o 1A CENT CHG pump Computer Group #59 o 1B CENT CHG pump Computer Group #59

b. Check running equipment b. Shutdown ANY equipment temperature - LESS THAN MAXIMUM exceeding the limits of LIMITS LIMITS:: TABLE A (Page 25).

Refer to TABLE A (Page 25)

c. SX PUMP DSCH HDR PRESS LOW c. Dispatch operator(s) to (1-2-A2) - NOT LIT perform the following:

Check for leaks in the Aux Bldg. Dispatch Operator to look for leaks SXCT area. Verify SX strainer backwash isolated. Step continued on next page Page 14 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 5 (continued)

d. CNMT indications - NORMAL NORMAL:: d. Perform the following to isolate one RCFC train:

CNMT sump flow recorders (1PM12J) - NORMAL NORMAL:: 1) Shutdown NON-running SX pump's train RCFCs: Floor Drain Sump (1FT-RF008) o Train 1A: RX Cavity Sump 1A and 1C RCFCs (1FT-RF010) o Train 1B: 1B and 1D RCFCs

2) Close associated RCFC train isol valves:

o 1SX016A and 1SX027A o 1SX016B and 1SX027B IF leak is NOT stopped, THEN perform the following:

1) Unisolate previously isolated RCFC train.

2) Swap running SX pumps.

3) Isolate other RCFC train.

Step continued on next page Page 15 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 5 (continued)

e. Aux Bldg indications - NORMAL NORMAL:: e. Perform the following:

1) No report of locally observed 1) Locate and isolate the leak leak.

2) SX PUMP SUCT VLV PIT LEVEL o IF Unit 1 CC HX must HIGH (1-2-D2) - NOT LIT be isolated, THEN align Unit 0 CC

3) Contact Radwaste Operator to HX to cool Unit 1 verify following: loads per BOP CC-10, ALIGNMENT OF THE U-0 Leak detection sumps - NOT CC PUMP AND U-0 HX TO IN ALARM A UNIT.

Aux Bldg sumps - NORMAL o IF one SX train must be isolated, THEN swap running equipment to the NON-affected train. o IF a SX break beyond the capacity of system makeup can NOT be isolated, THEN perform the following:

1) Stop Unit 1 SX pumps.

2) Close the riser and bypass valves on the SX tower with the lowest level.

2) Evaluate potential equipment damage due to flooding.

Step continued on next page Page 16 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 5 (continued)

3) WHEN SX system integrity has been restored, THEN perform the following:

a) Vent affected portions of the SX system as necessary per BOP SX-7, FILLING AND VENTING THE SX SYSTEM. b) 3&563/
50 Step 1 (Page 2).

  3&'&3
50
5&$)
41&$4 3&'&3
50
5&$)
41&$4

3.5.2 3.7.8 3.7.9 Other Tech Specs as applicable

  3&563/
50
130$&%63&
"/%
45&1
*/
   &&$5
                                -END-Page 17 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 1 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  45"35
45"/%#:

45"35
45"/%#:
6/*5
 6/*5
 6/*5

49
16.1

                          
49
16.1
                          
49
16.1

a. Check RCFC SX isol valves for a. Manually or locally open standby SX pump - OPEN OPEN:

valve(s):

o 2A SX pump: o 2SX016A (374 +29 RXB2 P-15) 2SX016A o 2SX027A (374 +29 RXB2 2SX027A P-14) o 2SX016B (401 +2 RXB2 o 2B SX pump: P-7) o 2SX027B (401 +2 RXB2 2SX016B P-9) 2SX027B

b. Start standby 6/*5
 SX pump b. (0
50 Step 3 (Next Page).

 $30445*&
50
#05)

   $30445*&
50
#05)
6/*5


6/*5
 6/*5

49

                             
49 16.14 16.14

a. Open Unit 0 CC HX inlet valves: a. Locally open valve(s):

1SX005 o 1SX005 (330 P19 AB2) 2SX005 o 2SX005 (330 P19 AB2)

b. Check SX pump crosstie valves - b. Manually or locally open OPEN OPEN: : valve(s):

1SX033 o 1SX033 (330 Q17 AB1) 1SX034 o 1SX034 (330 Q19 AB2) 2SX033 o 2SX033 (330 P16 AB1) 2SX034 o 2SX034 (330 P20 AB2)

c. Check 6/*5
 SX pump discharge c. (0
50 Step 5 (Page 21).

pressure - GREATER THAN 90 PSIG

d. (0
50 Step 6 (Page 22)

Page 18 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 2 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  "-*(/
'03
4*/(-&
16.1
$30445*&
   "-*(/
'03
4*/(-&
16.1
$30445*&

a. Stop RCFCs for non-running 6/*5
 SX pump:

o 2A SX pump: 2A RCFC 2C RCFC o 2B SX pump: 2B RCFC 2D RCFC

b. Close RCFC SX isol valves for b. IF NEITHER SX isol valves non-running 6/*5
 SX pump: can be manually closed, THEN locally close the SX o 2A SX pump: inlet isol valve:

2SX016A o 2SX016A (374 +29 RXB2 2SX027A P-15) o 2SX016B (401 +2 RXB2 o 2B SX pump: P-7) 2SX016B 2SX027B

c. Stop ONE pair of UNIT 1 RCFCs for SX isol:

o 1A and 1C RCFCs o 1B and 1D RCFCs

d. Close associated UNIT 1 RCFC d. IF NEITHER SX isol valves train SX isol valves: can be manually closed, THEN locally close the SX o 1SX016A and 1SX027A inlet isol valve:

o 1SX016B and 1SX027B o 1SX016A (374 +29 RXB1 P-15) o 1SX016B (401 +2 RXB1 P-7)

e. Monitor CNMT temperature and pressure on both units Page 19 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 3 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  $30445*&
50
4*/(-&

   $30445*&
50
4*/(-&
6/*5


6/*5
 6/*5

49

                              
49 16.1 16.1

a. Open Unit 0 CC HX inlet valves: a. Locally open valve(s):

1SX005 o 1SX005 (330 P19 AB2) 2SX005 o 2SX005 (330 P19 AB2)

b. Check SX pump crosstie valves - b. Manually or locally open OPEN OPEN:: valve(s):

1SX033 o 1SX033 (330 Q17 AB1) 1SX034 o 1SX034 (330 Q19 AB2) 2SX033 o 2SX033 (330 P16 AB1) 2SX034 o 2SX034 (330 P20 AB2) Page 20 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 4 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  .0/*503
49
4:45&.
   .0/*503
49
4:45&.

a. Maintain the following: a. Perform the following:

6/*5
 SX pump(s): o Isolate SX to Unit 1 RCFC train(s): Motor amps - LESS THAN 180 AMPS a) Shutdown RCFC train(s): Discharge pressure - GREATER THAN 90 PSIG o 1A and 1C RCFC o 1B and 1D RCFC CC heat exchanger outlet temperature - LESS THAN 105 F: 105 b) Close RCFC SX outlet valve(s): 1TI-674 (Unit 1 CC HX) 2TI-674 ( 6/*5
 CC HX) (6/*5
 o 1SX027A 0TI-675 (Unit 0 CC HX) o 1SX027B c) Monitor CNMT temperature and pressure. o Locally throttle CC heat exchanger(s) SX outlet valve(s) as necessary: o 0SX007 (346 L16 AB1) o 1SX007 (346 M16) o 2SX007 (346 M20) o Shutdown ANY unnecessary DGs.

b. Check running CENT CHG pump oil b. Align emergency FP cooling temperature(s) on computer per ATTACHMENT B group #59 - NORMAL (Page 23).

o 1A CENT CHG pump o 1B CENT CHG pump o 2A CENT CHG pump o 2B CENT CHG pump Step continued on next page Page 21 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 5 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE Step 5 (continued)

c. Monitor temperatures on UNIT 1 equipment cooled by SX per TABLE A (Page 25)

d. Shutdown ANY equipment exceeding the limits of TABLE A (Page 25)

e. Realign riser and bypass valves per BOP SX-T2, SX TOWER OPERATION GUIDELINES

  $)&$,
$)*--&34
01&3"5*/(
   $)&$,
$)*--&34
01&3"5*/(

a. Control room chillers - ONE a. Start one chiller per BOP RUNNING VC-10, STARTUP OF THE CONTROL ROOM CHILLED WATER SYSTEM.

b. CNMT chillers - ONE RUNNING b. IF SX flowpath to one RCFC train is available, THEN start the associated chiller per BOP VP-1, RCFC REFRIGERATION UNIT AND CHILLED WATER SYSTEM STARTUP.

  3&563/
50
."*/
#0%: 
4UFQ


1BHF


                                -END-Page 22 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT B (PG 1 OF 2) ALIGNING EMERGENCY FP COOLING TO CENT CHG PUMP OIL COOLER

• NOTE *
• Consideration should be given to *
• aligning the standby pump to ensure *
• cooling upon an auto start. *
• NOTE *
• Initiating emergency FP cooling to *
• the 1B and 2B CENT CHG pump oil *
• coolers may cause a Fire Suppression *
• Alarm in Zone(s) 1S-60 and 2S-53. *

  "-*(/
'1
$00-*/(
50
"&$5&%
$&/5
   $)(
16.1 4 

a. Connect FP supply hose(s).

b. Open FP hose supply isol valve:

o 1A Cent Chg pump 0FP5170 (364

         +2 V18 AB2) o  1B Cent Chg  pump 1FP5162 (364 X13 RXB1) o  2A Cent Chg  pump 0FP5171 (364
         +3 V18 AB2) o  2B Cent Chg  pump 2FP5162 (364 X21 RXB2)

c. Open CENT CHG pump oil cooler FP supply valve:

o 1A Cent Chg pump 1SX2200A (364 +1 V15 RXB1) o 1B Cent Chg pump 1SX2200B (364 +2 Z15 RXB1) o 2A Cent Chg pump 2SX2200A (364 +2 V21 RXB2) o 2B Cent Chg pump 2SX2200B (364 +2 Z21 RXB2) Step continued on next page Page 23 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT B (PG 2 OF 2) ALIGNING EMERGENCY FP COOLING TO CENT CHG PUMP OIL COOLER Step 1 (continued)

d. Close CENT CHG pump oil cooler SX supply valve:

o 1A Cent Chg pump 1SX2199A (364 +4 V15 RXB1) o 1B Cent Chg pump 1SX2199B (364 +2 Z15 RXB1) o 2A Cent Chg pump 2SX2199A (364 +2 V21 RXB2) o 2B Cent Chg pump 2SX2199B (364 +2 Z21 AB2)

e. Place a portable fan in door opening as necessary to maintain running CENT CHG pump room(s) temperature - NORMAL

  3&563/
50
130$&%63&
"/%
45&1
*/
   &&$5
                                 -END-Page 24 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED TABLE A (PG 1 OF 1) VITAL EQUIPMENT TEMPERATURE LIMITS

  .0/*503
36//*/(
&26*1.&/5
5&.1&3"563&
-*.*54
   .0/*503
36//*/(
&26*1.&/5
5&.1&3"563&
-*.*54   

o RCPs temperature (Computer Groups #10 and #11) - LESS THAN MAXIMUM LIMITS LIMITS: RCP Mtr Radial Brng - 195195F RCP Mtr Thrust Brng - 195195F RCP Lower Radial Brng - 225 225F RCP Seal Leakoff - 235 F 235 o CENT CHG Pumps temperature (Computer Group #59) - LESS THAN MAXIMUM LIMITS LIMITS: Inbd Brng - 205 F 205 Outbd Brng - 205 205F Thrust Brng - 195 195F o SX Pumps temperature (Computer Group #64) - LESS THAN MAXIMUM LIMITS LIMITS:: Inbd Brng - 175 F 175 Outbd Brng - 175 175F o SI Pumps temperature (Computer Group #52) - LESS THAN MAXIMUM LIMITS LIMITS:: Inbd Brng - 205 F 205 Outbd Brng - 205 205F Thrust Brng - 205 205F o Motor Driven AF Pump temperatures (Computer Group #74) - LESS THAN MAXIMUM LIMITS LIMITS: : Inbd Brng - 165 F 165 Outbd Brng - 165 165F Thrust Brng - 165 165F o Diesel Driven AF Pump temperatures - LESS THAN MAXIMUM LIMITS LIMITS:: Maximum temperatures per BOP AF-7T1, DIESEL DRIVEN AUXILIARY FEEDWATER PUMP OPERATING LOG o DGs temperature - LESS THAN MAXIMUM LIMITS LIMITS:: Maximum temperatures per BOP DG-11T2, DIESEL GENERATOR OPERATING LOG

                                   -END-Page 25 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* A. PURPOSE This procedure provides actions required in the event of a malfunction of the Essential Service Water system. B. SYMPTOMS OR ENTRY CONDITIONS

1) The following conditions may cause entry into this procedure:

o SX basin level rapidly dropping. o Indications of a SX break in the Aux Bldg. o Indications of a SX break in the CNMT. o Abnormal temperatures on equipment cooled by SX.

2) The following annunciators may cause entry into this procedure:

o CNMT DRAIN LEAK DETECT FLOW HIGH (2-1-A2) o SX PUMP TRIP (2-2-A1) o SX PUMP DSCH HDR PRESS LOW (2-2-A2) o SX PUMP DSCH HDR TEMP HIGH LOW (2-2-B2) o SX PUMP SUCT PRESS LOW (2-2-C1) o SX STRN DP HIGH (2-2-C2) o SX PUMP SUCT VLV PIT LEVEL HIGH (2-2-D2) o SX MAKEUP PP AUTO START (0-37-B7) o SX CLG TWR BASIN LEVEL HIGH LOW (0-37-A8) o SX CLG TWR LOW SPEED FAN TRIP (0-37-A6) o SX CLG TWR HIGH SPEED FAN TRIP (0-37-B6) Page 1 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• With this procedure in effect the *
• Emergency Director shall evaluate *
• for EMERGENCY PLAN conditions. *
• NOTE *
• Both Units may be affected by a *
• malfunction in one or both Essential *
• Service Water trains. *
• NOTE *
• If a loss of SX is due to a loss of *
• the SX MDCT, 0BOA PRI-7. LOSS OF *
• ULTIMATE HEAT SINK should be *
• referenced. *

  $)&$,
49
16.14
   $)&$,
49
16.14

a. SX pump(s) - AT LEAST ONE a. Perform the following to RUNNING start the standby pump:

1) Manually open RCFC SX inlet and outlet valves:

o 2A SX pump: 2SX016A 2SX027A o 2B SX pump: 2SX016B 2SX027B Step continued on next page Page 2 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 1 (continued)

2) Start the SX pump.

IF the pump can NOT be started, THEN (0
50 ATTACHMENT A (Page 18). IF NO SX pump is available on Unit 1, THEN (0
50 0BOA PRI-7. LOSS OF ULTIMATE HEAT SINK.

b. SX STRN DP HIGH (1-2-C2) - NOT b. Locally backwash LIT strainer(s) per BOP SX-4, ESSENTIAL SERVICE WATER STRAINER MANUAL OPERATION.

c. SX PUMP DSCH HDR PRESS LOW c. Perform the following:

(1-2-A2) - NOT LIT

1) Start an additional SX pump.

2) Locally verify the SX Strainers are NOT backwashing.

3) Locally adjust SX outlet from CC heat exchanger valve(s) while maintaining outlet temperature(s) less than 105 105F (Normal) 120 120F (RH in S/D Cooling) 130 130F (Post LOCA):

o 2SX007 (346 M20) o 0SX007 (346 L16 AB1) Step continued on next page Page 3 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 1 (continued) IF SX pump discharge header pressure can NOT be restored, THEN perform the following:

1) Monitor temperatures to equipment cooled by SX.

2) Shutdown ANY unnecessary equipment:

o DG(s) o MCR chiller(s) o SI pump(s) o RCFC(s) o CNMT chiller(s)

3) Close the SX outlet valve for ANY shutdown RCFC train(s):

o 2SX027A o 2SX027B

4) IF CENT CHG pump temperatures are approaching the limits of TABLE A (Page 25),

THEN align FP to CENT CHG pump lube oil cooler per ATTACHMENT B (Page 23) while continuing with this procedure: o CENT CHG pump 2A o CENT CHG pump 2B

5) Shutdown any vital equipment exceeding the limits of TABLE A (Page 25).

Step continued on next page Page 4 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 1 (continued)

6) At Shift Manager discretion align 6/*5


SX to cool unit 2 CC loads via the Unit 0 CC HX: a) Open CC HX 0 SX inlet valve: 1SX005 (330 P19 AB2) b) Open CC HX 0 SX outlet valve: 0SX146 0SX147 c) Align the Unit 0 CC HX to Unit 2 per BOP CC-10, ALIGNMENT OF THE U-0 CC PUMP AND U-0 HX TO A UNIT.

d. Locally check tripped SX d. Perform the following:

pump(s) - NOT ROTATING

1) Dispatch an operator to energize the affected pump's suction valve:

o 2SX001A at 231X3 cub E4 o 2SX001B at 232X1 cub C1

2) Close the affected pump's suction valve:

o 2SX001A o 2SX001B Page 5 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  $)&$,
49
16.1
%*4$)"3(&
)&"%&3 5&.1&3"563&

5&.1&3"563&

a. Temperature - GREATER THAN 50 F 50 a. Perform the following:

1) Verify SX tower hot water basin bypass valves for running pumps are OPEN:

o 2A SX pump: o 0SX162A o 0SX162C o 2B SX pump: o 0SX162B o 0SX162D

2) Stop ALL SX tower fans:

0SX03CA through 0SX03CH Step continued on next page Page 6 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 2 (continued)

b. Temperature - LESS THAN 80 80F b. Start ALL SX tower fans by performing the following:

1) Open ALL riser valves:

0SX163A through 0SX163H

2) Verify the hot water basin bypass valves are closed:

0SX162A 0SX162B 0SX162C 0SX162D

3) Start ALL fans in high speed:

0SX03CA through 0SX03CH

4) IF any fan fails to start in high speed, THEN close its associated riser valve unless needed for the running SX pump(s) return flowpath(s).

5) Refer to Tech Spec 3.7.9.

Step continued on next page Page 7 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 2 (continued) IF ALL SX tower fans fail to start, THEN perform the following to establish an alternate method of SX cooling:

1) Verify WW sand filters are shutdown.

2) Close both SX basin CW makeup valves:

0CW100A 0CW100B

3) Establish WW makeup flow to SX basins from the MCR:

a) Place WW makeup valves in AUTO: 0WW019A 0WW019B b) Place SX basin level controllers in MANUAL and raise demand until WW makeup valves indicate dual valve position: 0LK-SX064 0LK-SX065 c) Start both WW pumps.

4) Verify SX blowdown flow established.

0SX161A (400 C6 GL) 0SX161B (400 C6 GL) Step continued on next page Page 8 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 2 (continued)

5) Adjust SX basin level controllers as necessary to maintain SX basin levels between 90% to 100%

100%.. IF WW makeup flow can NOT be established from the MCR, THEN perform the following:

1) Dispatch an operator to locally open WW makeup valves:

0WW019A (860 J1 SXCT) 0WW019B (860 J1 SXCT)

2) Start both WW pumps.

3) Locally throttle WW makeup valve(s) as necessary to maintain basin levels between 90% to 100%

100%. Page 9 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• A loss of IA pressure will cause the *
• SX basin levels indication to slowly *
• fail low as the IA header *
• depressurizes. *
• NOTE *
• The SX tower basins are crosstied *
• above 64%64%.

                             . A leak from one basin      *

• will cause both basin levels to *
• drop. *

  $)&$,
49
508&3
#"4*/
   $)&$,
49
508&3
#"4*/

a. Level - LESS THAN 100% a. Perform the following:

1) Close any open SX basin CW makeup valve(s):

o 0CW100A o 0CW100B

2) Secure WW makeup to SX basins:

a) Stop any running deep well pump(s) aligned to a SX basin. b) Close associated SX basin deep well makeup valve(s): o 0WW019A o 0WW019B

3) Stop running SX makeup pump(s).

4) Realign riser and bypass valves as necessary to maintain basin levels.

Step continued on next page Page 10 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 3 (continued)

5) Dispatch operator to check for basin overflow.

b. Level - GREATER THAN 80% AND b. Perform the following:

STABLE

1) Makeup to SX basin(s) as necessary to restore level:

o Establish CW makeup:

1) Place CW makeup valve(s) in AUTO:

o 0CW100A o 0CW100B

2) Adjust SX basin level controller(s) as necessary to restore level:

o 0LK-SX064 o 0LK-SX065 o Establish WW makeup:

1) Place WW makeup valve(s) in AUTO:

o 0WW019A o 0WW019B

2) Place SX basin level controller(s) in MANUAL and raise demand until WW makeup valve(s) indicate dual valve position:

o 0LK-SX064 o 0LK-SX065

3) Start WW pump(s).

Step continued on next page Page 11 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 3 (continued)

2) Dispatch an operator to close SX blowdown valves:

0SX161A (400 C6 GL) 0SX161B (400 C6 GL)

3) Dispatch Operator to look for leaks SXCT area.

4) Verify SX strainer backwash isolated.

IF basin level continues to drop then start both SX makeup pumps.

c. Level - GREATER THAN 60% c. Perform the following:

1) Dispatch operator(s) to check for leaks in the Aux Bldg.

2) Verify both SX makeup pumps running.

3) Shutdown ANY equipment exceeding the limits of TABLE A (Page 25).

4) Refer to Tech Spec 3.7.9.

Page 12 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  $)&$,
$$
065-&5
5&.1&3"563&
   $)&$,
$$
065-&5
5&.1&3"563&

a. CC heat exchanger outlet a. Perform the following:

temperature(s) - LESS THAN 105 105F: 1) Locally throttle SX outlet from CC heat 2TI-674 (Unit 2 CC HX) exchanger valve(s) to 0TI-675 (Unit 0 CC HX) maintain CC temperature less than 105 105F: o 2SX007 (346 M20) o 0SX007 (346 L16 AB1)

2) IF RCP THERMAL BARR CC WTR TEMP HIGH (2-7-E3) is LIT, THEN maintain seal injection flow between 8 GPM and 13 GPM per pump.

Page 13 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

  $)&$,
49
4:45&.
*/5"$5
   $)&$,
49
4:45&.
*/5"$5

a. Running CENT CHG pump oil a. Align emergency FP cooling temperature(s) - NORMAL per ATTACHMENT B (Page 23).

o 2A CENT CHG pump Computer Group #59 o 2B CENT CHG pump Computer Group #59

b. Check running equipment b. Shutdown ANY equipment temperature - LESS THAN MAXIMUM exceeding the limits of LIMITS LIMITS:: TABLE A (Page 25).

Refer to TABLE A (Page 25)

c. SX PUMP DSCH HDR PRESS LOW c. Dispatch operator(s) to (2-2-A2) - NOT LIT perform the following:

Check for leaks in the Aux Bldg. Dispatch Operator to look for leaks SXCT area. Verify SX strainer backwash isolated. Step continued on next page Page 14 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 5 (continued)

d. CNMT indications - NORMAL NORMAL:: d. Perform the following to isolate one RCFC train:

CNMT sump flow recorders (2PM12J) - NORMAL NORMAL:: 1) Shutdown NON-running SX pump's train RCFCs: Floor Drain Sump (2FT-RF008) o Train 2A: RX Cavity Sump 2A and 2C RCFCs (2FT-RF010) o Train 2B: 2B and 2D RCFCs

2) Close associated RCFC train isol valves:

o 2SX016A and 2SX027A o 2SX016B and 2SX027B IF leak is NOT stopped, THEN perform the following:

1) Unisolate previously isolated RCFC train.

2) Swap running SX pumps.

3) Isolate other RCFC train.

Step continued on next page Page 15 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 5 (continued)

e. Aux Bldg indications - NORMAL NORMAL:: e. Perform the following:

1) No report of locally observed 1) Locate and isolate the leak leak.

2) SX PUMP SUCT VLV PIT LEVEL o IF Unit 2 CC HX must HIGH (2-2-D2) - NOT LIT be isolated, THEN align Unit 0 CC

3) Contact Radwaste Operator to HX to cool Unit 2 verify following: loads per BOP CC-10, ALIGNMENT OF THE U-0 Leak detection sumps - NOT CC PUMP AND U-0 HX TO IN ALARM A UNIT.

Aux Bldg sumps - NORMAL o IF one SX train must be isolated, THEN swap running equipment to the NON-affected train. o IF a SX break beyond the capacity of system makeup can NOT be isolated, THEN perform the following:

1) Stop Unit 2 SX pumps.

2) Close the riser and bypass valves on the SX tower with the lowest level.

2) Evaluate potential equipment damage due to flooding.

Step continued on next page Page 16 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 5 (continued)

3) WHEN SX system integrity has been restored, THEN perform the following:

a) Vent affected portions of the SX system as necessary per BOP SX-7, FILLING AND VENTING THE SX SYSTEM. b) 3&563/
50 Step 1 (Page 2).

  3&'&3
50
5&$)
41&$4 3&'&3
50
5&$)
41&$4

3.5.2 3.7.8 3.7.9 Other Tech Specs as applicable

  3&563/
50
130$&%63&
"/%
45&1
*/
   &&$5
                                -END-Page 17 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 1 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  45"35
45"/%#:

45"35
45"/%#:
6/*5
 6/*5
 6/*5

49
16.1

                          
49
16.1
                          
49
16.1

a. Check RCFC SX isol valves for a. Manually or locally open standby SX pump - OPEN OPEN:

valve(s):

o 1A SX pump: o 1SX016A (374 +29 RXB1 P-15) 1SX016A o 1SX027A (374 +29 RXB1 1SX027A P-14) o 1SX016B (401 +2 RXB1 o 1B SX pump: P-7) o 1SX027B (401 +2 RXB1 1SX016B P-9) 1SX027B

b. Start standby 6/*5
 SX pump b. (0
50 Step 3 (Next Page).

 $30445*&
50
#05)

   $30445*&
50
#05)
6/*5


6/*5
 6/*5

49

                             
49 16.14 16.14

a. Open Unit 0 CC HX inlet valves: a. Locally open valve(s):

2SX005 o 2SX005 (330 P19 AB2) 1SX005 o 1SX005 (330 P19 AB2)

b. Check SX pump crosstie valves - b. Manually or locally open OPEN OPEN: : valve(s):

2SX033 o 2SX033 (330 P16 AB1) 2SX034 o 2SX034 (330 P20 AB2) 1SX033 o 1SX033 (330 Q17 AB1) 1SX034 o 1SX034 (330 Q19 AB2)

c. Check 6/*5
 SX pump discharge c. (0
50 Step 5 (Page 21).

pressure - GREATER THAN 90 PSIG

d. (0
50 Step 6 (Page 22)

Page 18 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 2 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  "-*(/
'03
4*/(-&
16.1
$30445*&
   "-*(/
'03
4*/(-&
16.1
$30445*&

a. Stop RCFCs for non-running 6/*5
 SX pump:

o 1A SX pump: 1A RCFC 1C RCFC o 1B SX pump: 1B RCFC 1D RCFC

b. Close RCFC SX isol valves for b. IF NEITHER SX isol valves non-running 6/*5
 SX pump: can be manually closed, THEN locally close the SX o 1A SX pump: inlet isol valve:

1SX016A o 1SX016A (374 +29 RXB1 1SX027A P-15) o 1SX016B (401 +2 RXB1 o 1B SX pump: P-7) 1SX016B 1SX027B

c. Stop ONE pair of UNIT 2 RCFCs for SX isol:

o 2A and 2C RCFCs o 2B and 2D RCFCs

d. Close associated UNIT 2 RCFC d. IF NEITHER SX isol valves train SX isol valves: can be manually closed, THEN locally close the SX o 2SX016A and 2SX027A inlet isol valve:

o 2SX016B and 2SX027B o 2SX016A (374 +29 RXB2 P-15) o 2SX016B (401 +2 RXB2 P-7)

e. Monitor CNMT temperature and pressure on both units Page 19 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 3 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  $30445*&
50
4*/(-&

   $30445*&
50
4*/(-&
6/*5


6/*5
 6/*5

49

                              
49 16.1 16.1

a. Open Unit 0 CC HX inlet valves: a. Locally open valve(s):

2SX005 o 2SX005 (330 P19 AB2) 1SX005 o 1SX005 (330 P19 AB2)

b. Check SX pump crosstie valves - b. Manually or locally open OPEN OPEN:: valve(s):

2SX033 o 2SX033 (330 P16 AB1) 2SX034 o 2SX034 (330 P20 AB2) 1SX033 o 1SX033 (330 Q17 AB1) 1SX034 o 1SX034 (330 Q19 AB2) Page 20 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 4 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE

  .0/*503
49
4:45&.
   .0/*503
49
4:45&.

a. Maintain the following: a. Perform the following:

6/*5
 SX pump(s): o Isolate SX to Unit 2 RCFC train(s): Motor amps - LESS THAN 180 AMPS a) Shutdown RCFC train(s): Discharge pressure - GREATER THAN 90 PSIG o 2A and 2C RCFC o 2B and 2D RCFC CC heat exchanger outlet temperature - LESS THAN 105 F: 105 b) Close RCFC SX outlet valve(s): 2TI-674 (Unit 2 CC HX) 1TI-674 ( 6/*5
 CC HX) (6/*5
 o 2SX027A 0TI-675 (Unit 0 CC HX) o 2SX027B c) Monitor CNMT temperature and pressure. o Locally throttle CC heat exchanger(s) SX outlet valve(s) as necessary: o 0SX007 (346 L16 AB1) o 2SX007 (346 M20) o 1SX007 (346 M16) o Shutdown ANY unnecessary DGs.

b. Check running CENT CHG pump oil b. Align emergency FP cooling temperature(s) on computer per ATTACHMENT B group #59 - NORMAL (Page 23).

o 2A CENT CHG pump o 2B CENT CHG pump o 1A CENT CHG pump o 1B CENT CHG pump Step continued on next page Page 21 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT A (PG 5 OF 5) ESSENTIAL SERVICE WATER SYSTEM CROSSTIE Step 5 (continued)

c. Monitor temperatures on UNIT 2 equipment cooled by SX per TABLE A (Page 25)

d. Shutdown ANY equipment exceeding the limits of TABLE A (Page 25)

e. Realign riser and bypass valves per BOP SX-T2, SX TOWER OPERATION GUIDELINES

  $)&$,
$)*--&34
01&3"5*/(
   $)&$,
$)*--&34
01&3"5*/(

a. Control room chillers - ONE a. Start one chiller per BOP RUNNING VC-10, STARTUP OF THE CONTROL ROOM CHILLED WATER SYSTEM.

b. CNMT chillers - ONE RUNNING b. IF SX flowpath to one RCFC train is available, THEN start the associated chiller per BOP VP-1, RCFC REFRIGERATION UNIT AND CHILLED WATER SYSTEM STARTUP.

  3&563/
50
."*/
#0%: 
4UFQ


1BHF


                                -END-Page 22 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT B (PG 1 OF 2) ALIGNING EMERGENCY FP COOLING TO CENT CHG PUMP OIL COOLER

• NOTE *
• Consideration should be given to *
• aligning the standby pump to ensure *
• cooling upon an auto start. *
• NOTE *
• Initiating emergency FP cooling to *
• the 1B and 2B CENT CHG pump oil *
• coolers may cause a Fire Suppression *
• Alarm in Zone(s) 1S-60 and 2S-53. *

  "-*(/
'1
$00-*/(
50
"&$5&%
$&/5
   $)(
16.1 4 

a. Connect FP supply hose(s).

b. Open FP hose supply isol valve:

o 2A Cent Chg pump 0FP5171 (364

         +3 V18 AB2) o  2B Cent Chg  pump 2FP5162 (364 X21 RXB2) o  1A Cent Chg  pump 0FP5170 (364
         +2 V18 AB2) o  1B Cent Chg  pump 1FP5162 (364 X13 RXB1)

c. Open CENT CHG pump oil cooler FP supply valve:

o 2A Cent Chg pump 2SX2200A (364 +2 V21 RXB2) o 2B Cent Chg pump 2SX2200B (364 +2 Z21 RXB2) o 1A Cent Chg pump 1SX2200A (364 +1 V15 RXB1) o 1B Cent Chg pump 1SX2200B (364 +2 Z15 RXB1) Step continued on next page Page 23 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT B (PG 2 OF 2) ALIGNING EMERGENCY FP COOLING TO CENT CHG PUMP OIL COOLER Step 1 (continued)

d. Close CENT CHG pump oil cooler SX supply valve:

o 2A Cent Chg pump 2SX2199A (364 +2 V21 RXB2) o 2B Cent Chg pump 2SX2199B (364 +2 Z21 AB2) o 1A Cent Chg pump 1SX2199A (364 +4 V15 RXB1) o 1B Cent Chg pump 1SX2199B (364 +2 Z15 RXB1)

e. Place a portable fan in door opening as necessary to maintain running CENT CHG pump room(s) temperature - NORMAL

  3&563/
50
130$&%63&
"/%
45&1
*/
   &&$5
                                 -END-Page 24 of 25

3&7
 &44&/5*"-
4&37*$&
8"5&3
."-'6/$5*0/ #0" 6/*5
 13* STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED TABLE A (PG 1 OF 1) VITAL EQUIPMENT TEMPERATURE LIMITS

  .0/*503
36//*/(
&26*1.&/5
5&.1&3"563&
-*.*54
   .0/*503
36//*/(
&26*1.&/5
5&.1&3"563&
-*.*54   

o RCPs temperature (Computer Groups #10 and #11) - LESS THAN MAXIMUM LIMITS LIMITS: RCP Mtr Radial Brng - 195195F RCP Mtr Thrust Brng - 195195F RCP Lower Radial Brng - 225 225F RCP Seal Leakoff - 235 F 235 o CENT CHG Pumps temperature (Computer Group #59) - LESS THAN MAXIMUM LIMITS LIMITS: Inbd Brng - 205 F 205 Outbd Brng - 205 205F Thrust Brng - 195 195F o SX Pumps temperature (Computer Group #64) - LESS THAN MAXIMUM LIMITS LIMITS:: Inbd Brng - 175 F 175 Outbd Brng - 175 175F o SI Pumps temperature (Computer Group #52) - LESS THAN MAXIMUM LIMITS LIMITS:: Inbd Brng - 205 F 205 Outbd Brng - 205 205F Thrust Brng - 205 205F o Motor Driven AF Pump temperatures (Computer Group #74) - LESS THAN MAXIMUM LIMITS LIMITS: : Inbd Brng - 165 F 165 Outbd Brng - 165 165F Thrust Brng - 165 165F o Diesel Driven AF Pump temperatures - LESS THAN MAXIMUM LIMITS LIMITS:: Maximum temperatures per BOP AF-7T1, DIESEL DRIVEN AUXILIARY FEEDWATER PUMP OPERATING LOG o DGs temperature - LESS THAN MAXIMUM LIMITS LIMITS:: Maximum temperatures per BOP DG-11T2, DIESEL GENERATOR OPERATING LOG

                                   -END-Page 25 of 25

                         
                                                           

A. PURPOSE This procedure provides actions required in the event of a complete loss of Ultimate Heat Sink (UHS) cooling capability. B. SYMPTOMS OR ENTRY CONDITIONS

1) The following conditions may cause entry into this procedure:

o A complete loss of SX pump capability coincident with an inability to crosstie to an alternate unit SX supply.

2) The following procedures may cause entry into this procedure:

o 1/2BOA PRI-7, ESSENTIAL SERVICE WATER MALFUNCTION Page 1 of 12

                          
                                                            

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

                >>¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥ CAUTION Recovery actions in this procedure may place a Unit in BCA-0.0, LOSS OF ALL AC POWER, care will be required to coordinate procedures with abnormal entry conditions.             
                ¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥º
                >>¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥ CAUTION Temperatures of running equipment cooled by SX and CC should be monitored for overheating using TABLE A.                               
                ¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥º

• NOTE *
• With this procedure in effect the *
• Emergency Director shall evaluate *
• for EMERGENCY PLAN conditions. *
• NOTE *
• This procedure isolates SX cooling *
• to the CC HXs. Unit-1 and Unit-2 *
• should perform BOA PRI-6 concurrent *
• with this procedure. *

        

a. Any SX pump available for a. Perform the following for start: each affected Unit while continuing with this o SX pump 1A procedure at Step 2 (Next o SX pump 1B Page):

o SX pump 2A o SX pump 2B 1) Trip the Reactor.

2)   BEP-0, REACTOR TRIP OR SAFETY INJECTION.

b.   procedure and step in effect.

Page 2 of 12

                        
                                                          

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

               >>¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥ CAUTION If Alternate cooling can not be established to the D/Gs before they overheat, they should be secured until cooling is established.          
               ¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥º
               >>¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥ CAUTION If AC power is unavailable, it will be necessary to restore SX flow and equipment in stages. With cooling to the 1B D/G, bus 144 may be energized to power additional FP cooling using the 0A Fire pump.        
               ¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥º
         Concurrently perform the
      !                       following without delay:

141 a. Dispatch an operator to 142 locally crosstie FP to SX: 241 242 1) Close CC HX SX outlet isol valves: 1SX007 (346 L16 AB1) 2SX007 (346 L20 AB2) 0SX007 (346 L16 AB1)

2) Unlock (A-2 key) and open SX to FP X-tie Isol valves:

0SX172 (383 +2 M20 AB2) 0SX174 (346 +10 P15 AB1)

b. Isolate SX to RCFC trains by manually or locally closing:

1SX016A (374 RXB1 P-15) 1SX016B (401 RXB1 P-7) 2SX016A (401 RXB2 P-15) 2SX016B (401 RXB2 P-7)

c. IF bus 142 is energized by a diesel, THEN energize bus 144 from bus 142:

1) Place 0B WS pump in PTL.

2) Synchronize and close ACB 1421.

Page 3 of 12

                        
                                                           

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

"      
      

a. Check FP system - AVAILABLE: a. IF the WS system available, THEN crosstie WS to supply o 0B FP pump - OPERABLE FP:

o 0A FP pump - OPERABLE 1) Increase WS system pressure: o Start additional WS pump(s). o Consult TSC to throttle WS valves to increase WS header pressure.

2) WHEN WS pressure is greater than FP pressure, THEN unlock (A-2 key) and open WS to FP X-tie Isol valve:

0FP507 (401 +20 K35 TB2) Page 4 of 12

                        
                                                           

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

               >>¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥ CAUTION Minimum SX flow supplied from FP system requires isolation of SX flow to CC HXs and RCFC trains.             
               ¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥º
        

a. Dispatch an operator to locally close CC HX SX outlet isols:

1SX007 (346 L16 AB1) 2SX007 (346 L20 AB2) 0SX007 (346 L16 AB1)

b. Crosstie SX Train supply headers:

1) Open Unit 0 CC HX SX inlet 1) Locally open valve(s):

valves: o 1SX005 (330 +6 P19 1SX005 AB2) 2SX005 o 2SX005 (330 +4 P19 AB2)

2) Check SX train isol valves - 2) Manually or locally open OPEN: valve(s):

Unit 1 valves: o 1SX004 (330 +11 Q17 1SX004 AB1) 1SX033 o 1SX033 (330 +5 Q17 1SX034 AB1) o 1SX034 (330 +5 Q19 Unit 2 valves: AB2) o 2SX004 (330 +6 P17 2SX004 AB1) 2SX033 o 2SX033 (330 +5 P16 2SX034 AB1) o 2SX034 (330 +5 P20 AB2) Step continued on next page Page 5 of 12

                        
                                                           

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED Step 4 (continued)

c. Minimize SX system load:

1) Isolate RCFC flow:

a) Close Unit 1 isol valves: a) Locally close valve(s). 1SX016A 1SX016B o 1SX016A (374 RXB1 P-15) o 1SX016B (401 RXB1 P-7) b) Close Unit 2 isol valves: b) Locally close valve(s). 2SX016A 2SX016B o 2SX016A (374 RXB2 P-15) o 2SX016B (401 RXB2 P-7)

2) Stop unrequired DGs and place in - PULL OUT o 2A DG o 1A DG o 2B DG o 1B DG Page 6 of 12

                         
                                                           

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• One fire pump will ONLY support one *
• DG at a reduced flow rate. Two fire *
• pumps can supply all 4 DGs. *
• NOTE *
• 1B DG is preferred because 0A Fire *
• pump is powered from 144, 2B DG can *
• be connected to 144 using jumpers. *

#        

a. Dispatch an operator to crosstie FP to SX - LOCALLY UNLOCK (A-2 key) AND OPEN:

0SX172 (383 +2 M20 AB2) 0SX174 (346 +10 P15 AB1)

b. Check BOTH FP pumps - RUNNING: b. Perform the following:

FIRE PUMP 0A RUNNING alarm 1) Dispatch an operator to (0-38-B7) - LIT locally start pump(s). FIRE PUMP 0B RUNNING alarm (0-38-B8) - LIT IF power is NOT available to the 0A fire pump, THEN consult TSC to establish a power supply.

2) Stop unsupported DGs and place in - PULL OUT:

1A DG 2A DG 2B DG

3) Monitor SX flow to 1B DG using:

1FI-SX133, (401 P10 AB1)

4) Unlock and throttle SX to 1B DG to 600 GPM minimum:

o 1SX057B (401 +5 P10 AB1) Page 7 of 12

                        
                                                           

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• FP header pressures less than 70 *
• PSIG risk runout of pumps. *

$      

a. Check running CENT CHG pump(s) a. Align emergency FP cooling oil temperature(s) - NORMAL per 1/2BOA PRI-7, SX MALFUNCTION ATTACHMENT B.

o Computer Group #59

b. Check SX system pressure - b. Consult TSC to determine GREATER THAN 80 PSIG loads available to throttle or isolate to increase system pressure:

o Establish minimum 600 GPM SX flow to running DG(s): a) Monitor SX flow: 1A DG 1FI-SX132, (401 P-10 AB1) 1B DG 1FI-SX133, (401 P-10 AB1) 2A DG 2FI-SX132, (401 N-25 AB2) 2B DG 2FI-SX133, (401 N-24 AB2) b) Obtain keys and unlock and throttle close: o 1SX057A (Key 1177) (401 +8 P10 AB1) o 1SX057B (Key 1178) (401 +5 P10 AB1) o 2SX057A (Key 2151) (401 +6 Q25 RXB2) o 2SX057B (Key 2152) (401 +5 Q25 RXB2) o Other unrequired SX system loads. Page 8 of 12

                        
                                                          

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• SX return flow may overflow the MDCT *
• to the storm sewer and CROP. *

     !

a. Verify CROP level will remain - a. Operate the diesel CROP LESS THAN OVERFLOW pump as required.

b. Isolate CW blowdown:

0CW018A 0CW018B

c. Maintain CW flume level - c. Initiate CW makeup per BOP GREATER THAN 15 FEET CW-9, CIRCULATING WATER MAKE-UP PUMP START-UP Page 9 of 12

                        
                                                         

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

• NOTE *
• SX will remain unavailable to cool *
• Unit-1 and Unit-0 CC HX. *
• NOTE *
• Installation of jumpers may be *
• required to support energizing *
• necessary equipment. *

%      

a. Monitor temperatures of running equipment cooled by SX and CC using TABLE A (Next Page)

b. Consult TSC for long term recovery plan

c. Evaluate methods to increase available SX cooling:

o Throttling excess flow to running components o Isolate SX flow to unneeded equipment o Optimize alignment of required equipment

d. Evaluate methods to crosstie Unit-2 CC system to supply cooling to Unit-1 components

e. Evaluate methods of maintaining adequate water supplies:

o Energize makeup equipment o Obtain water from outside supplies

                                 -END-Page 10 of 12

                           
                                                            

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED TABLE A (PG 1 OF 2) VITAL EQUIPMENT TEMPERATURES

    &
       

o RCPs temperature (Computer Groups #10 and #11) - LESS THAN MAXIMUM LIMITS: RCP Mtr Radial Brng - 195°F RCP Mtr Thrust Brng - 195°F RCP Lower Radial Brng - 225°F RCP Seal Leakoff - 235°F o CENT CHG Pumps temperature (Computer Group #59) - LESS THAN MAXIMUM LIMITS: Inbd Brng - 205°F Outbd Brng - 205°F Thrust Brng - 195°F o SX Pumps temperature (Computer Group #64) - LESS THAN MAXIMUM LIMITS: Inbd Brng - 175°F Outbd Brng - 175°F o SI Pumps temperature (Computer Group #52) - LESS THAN MAXIMUM LIMITS: Inbd Brng - 205°F Outbd Brng - 205°F Thrust Brng - 205°F o Motor Driven AF Pump temperatures (Computer Group

       #74) - LESS THAN MAXIMUM LIMITS:

Inbd Brng - 165°F Outbd Brng - 165°F Thrust Brng - 165°F Step continued on next page Page 11 of 12

                          
                                                           

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED TABLE A (PG 2 OF 2) VITAL EQUIPMENT TEMPERATURES Step 1 (continued) o Diesel Driven AF Pump temperatures - LESS THAN MAXIMUM LIMITS: Maximum temperatures per BOP AF-7T1, DIESEL DRIVEN AUXILIARY FEEDWATER PUMP OPERATING LOG o DGs temperature - LESS THAN MAXIMUM LIMITS: Maximum temperatures per BOP DG-11T2, DIESEL GENERATOR OPERATING LOG

                                 -END-(Final)

Page 12 of 12

OP-AA-108-117 Revision 0 Page 1 of 10 Level 3 - Informational Use PROTECTED EQUIPMENT PROGRAM

1. PURPOSE 1.1. This procedure provides guidance for protecting equipment in order to minimize plant risk. This involves limiting or prohibiting operation or maintenance of plant equipment when SSCs are made unavailable.

1.2. The intent of protecting systems and components is to provide additional administrative barriers to guard against inadvertently rendering a component or system, which is important to unit risk and nuclear safety, inoperable or unavailable. It is also applicable to those systems and activities that pose a potential risk to generation. 1.3. Protected equipment actions taken in accordance with this procedure support the Configuration Risk Management Program and are classified as risk management actions for the purpose of compliance with 10CFR50.65 (a)(4). Failure to meet the requirements of this procedure is a potential violation of 10CFR50.65 (a)(4). 1.4. This procedure applies to online and shutdown conditions. The online goal is to maintain plant risk within acceptable levels by maintaining defense in depth of key safety functions, preventing inadvertent plant trips, transients, or Technical Specification Limiting Conditions for Operations (LCO) entries. The shutdown goal is to maintain shutdown risk within acceptable levels by maintaining defense in depth of key safety functions. 1.5. It is acceptable to protect additional equipment at the discretion of the Shift Manager. The Shift Manager has final authority on what equipment will be protected and allowing work on or around protected equipment. 1.6. The intent of this procedure is not to have equipment permanently protected. If a SSC were to become unavailable and the unavailability of the SSC alone causes a red risk condition, then protecting of this equipment under normal plant conditions is not required.

OP-AA-108-117 Revision 0 Page 2 of 10

2. TERMS AND DEFINITIONS 2.1. Key Safety Functions: They are listed as follows:

Decay Heat Removal Spent Fuel Pool Cooling (Outage) Inventory Control Electrical Power (includes both onsite & offsite power) Reactivity Control Primary Containment Integrity (Containment Isolation, Containment Pressure and Temperature Control) 2.2. Predetermined Protection Schemes: A standardized protection scheme that uses PARAGON (the Exelon Configuration Risk Management Software) for risk significant SSCs to determine what equipment to protect. Protection schemes for Technical Specifications and unit generation are determined manually by knowledge of Technical Specification requirements and plant operations. Predetermined protection schemes are maintained in either an electronic database or a site specific procedure/T&RM that can be administered by Operations. The use of standardized postings ensures a consistent application of the protected equipment program and reduces work activity conflicts associated with the protected train. 2.3. Protected Equipment: Any SSC which has been identified as being essential to ensure that either defense-in-depth of a Key Safety Function is maintained, unit generation is maintained or overall risk levels are maintained. 2.4. SSC: Structure, System, or Component

3. RESPONSIBILITIES 3.1. Equipment Operator and / or Reactor Operator Installs protected equipment postings and barriers.

Walks down protected equipment postings each shift. 3.2. Shift Supervisor Ensures protected equipment is tracked. 3.3. Shift Manager Has overall authority of the protected equipment program. Authorizes work on or within two feet of protected equipment. Communicates protected equipment status changes to the station duty team and Shutdown Safety Manager (if applicable).

OP-AA-108-117 Revision 0 Page 3 of 10 3.4. Shutdown Safety Review Board Determines the protected equipment requirements for all scheduled outages based on plant configuration and planned defense-in-depth. 3.5. Work Week Manager and / or Cycle Manager In conjunction with Risk Engineers and Operations Services, determines the protected equipment requirements for all online workweek activities and unplanned outages.

4. MAIN BODY 4.1. Development of Protected Equipment 4.1.1. The Shutdown Safety Manager or designee determines the protected equipment requirements for all scheduled outages based on plant configuration and planned defense-in-depth.

4.1.2. Outage Management and Operations determines the protected equipment requirements for all unplanned outages. 4.1.3. Online Work Management and Operations determines the protected equipment requirements for all online workweek activities. 4.1.4. Shift Management will promptly determine the systems and components to be protected for emergent issues affecting risk significant SSC availability. 4.2. When to Protect Equipment 4.2.1. When SSCs are planned to or become unavailable, then PROTECT redundant equipment if plant configuration is such that redundant equipment unavailability or manipulation would cause:

1. An overall online or outage risk assessment change to red risk (CM-2, CM-3, CM-4),

2. A loss of generation capability of > 20 MWe, or

3. An entry into Tech Spec 3.0.3 (3.0.1 for TMI) or a shutdown Tech Spec LCO of 12 hrs or less.

4.2.2. When SSCs are planned to or become unavailable and overall online or outage risk results in an actual orange or red risk, then PROTECT the redundant SSCs. (CM-2, CM-3, CM-4) 4.2.3. When SSCs are planned to or become unavailable and outage risk for a key safety function results in an actual orange or red risk, then PROTECT the redundant SSCs.

OP-AA-108-117 Revision 0 Page 4 of 10 4.2.4. When a degrading trend in a critical plant parameter for a SSC has been identified, then PROTECT the redundant SSC if the unavailability of the redundant SSC results in an actual orange or red risk condition. For example, if a site has two fuel pool cooling pumps and the running pump is identified as having an increasing trend in outboard bearing temperature during an outage when increased fuel pool loading exists and a loss of one FPC pump would cause an orange condition, then the redundant fuel pool cooling pump (i.e., pump without the degrading condition) should be protected. 4.2.5. At a minimum, PROTECT the following during outage conditions: (CM-1) One in-service decay heat removal train and required support systems with fuel in the reactor vessel, One reactor inventory make-up train and required support systems with fuel in the reactor vessel, and One spent fuel pool cooling train once core offload starts until the time to boil in the spent fuel pool is greater than 24 hours. 4.2.6. PROTECT equipment as directed by site specific procedures. NOTE: Single components within a switchyard may be protected by locking the switchyard or by flagging off the single component. 4.2.7. When entire switchyards or areas with fences and gates are being protected, then PROTECT the equipment using one of the following two methods: A lock and/or chain different than that used for normal access. A physical barrier placed in front of the gate used for normal access. 4.2.8. When deemed prudent by the Shift Manager, then IMPLEMENT additional equipment protection. 4.2.9. The Shift Manager has final authority in determining systems and equipment to be protected. Adding additional components or modifying where signs / barriers are posted is acceptable provided a reduction in the scope of the protected equipment does not occur. Reducing the scope of protected equipment is not acceptable. 4.3. Posting of Protected Equipment Signs and Robust Barriers 4.3.1. Protected equipment and systems are to be clearly identified in the field to prevent inadvertent work on or near the protected equipment. Physical barriers are to be used whenever possible, particularly in cases where bumping into a component may cause an inadvertent trip or system transient. (CM-1) 4.3.2. Protected equipment postings are to be encompassing enough to alert personnel from all directions. (CM-1)

OP-AA-108-117 Revision 0 Page 5 of 10 4.3.3. For short duration equipment unavailability, such as surveillance testing of less than one shift (typically less than 8 to 12 hrs), posting is not required. 4.3.4. Relying solely on the work schedule to prevent work on or activity around protected equipment is not acceptable. 4.3.5. PROTECT equipment using at least one of the following posting methods: (CM-1) Barrier rope, devices, or tape that establishes a boundary around the protected equipment with applicable postings to warn personnel of vital information regarding protected equipment status. Placement of highly visible reminders such as little men, orange cones, or easels that can also bear signage to delineate the protected equipment. Reusable laminated signs are also an alternative. Magnetic placards that are placed on breaker doors or panels to mark the protected equipment. Barrier rope, physical devices, tape and other similar devices or door handle covers for room doors. Protective Covers (clamshells, plastic cylinders or rings) may be placed over devices that should not be manipulated, as long as operability is not affected. 4.3.6. WHEN equipment protection is required, THEN POST the following: The equipment being protected, Main power supply feed breaker or driving force supply isolation valve, and Instrumentation, which if tripped, would render the protected equipment unavailable. Consider both the transmitters and the associated trip units. 4.3.7. The following considerations and examples should also be evaluated when protecting equipment: For extent of protection, barriers must extend back at least one component. For example:

• Concerning pumps, the local and remote control switches, the pump general area, the power supply (i.e. back to the pump feeder breaker),

specific instruments (or instrument racks as appropriate) that could cause a pump trip, and support systems (e.g. cooling water) back to the first isolation valve from the pump.

• For valves, the local and remote control switches, the valve general area, the valve driving force (i.e. main power supply feed breaker or air supply isolation valve), and interlocked valves (i.e. valves that when stroked could cause the valve being protected to change position).

During outage conditions, extent of protection for a decay heat removal train and an inventory make-up train must extend back to an available offsite feed and an available emergency feed. Additionally, a train of support systems must be protected. For example:

OP-AA-108-117 Revision 0 Page 6 of 10

• For a decay heat removal pump, in addition to what is stated in the above bullet under pumps, also include the bus, one normal electrical supply feed and one emergency electrical supply feed to the bus (including the emergency diesel generator), a heat exchanger cooling water supply pump and control, associated trip instrumentation of the power supply and cooling water pump.

Concerning electrical buses, load centers and MCC's:

• When protecting a breaker on a bus, load center or MCC, protecting an entire bus, load center or MCC is an acceptable method of protection.

However, work on individual breaker compartments, when the entire bus, load center or MCC is protected, should not be allowed.

• If an entire bus, load center or MCC is protected, then racking breakers in on that bus, load center or MCC is not permitted unless step 4.4.3 is followed. Racking out or removing breakers is permitted provided a procedure is used and a pre-job brief has been performed in accordance with HU-AA-1211.
• If an entire bus, load center or MCC is not protected but a single breaker on the bus, load center or MCC is protected, then breaker compartment work that could in no way affect the entire bus is permissible when individual breakers are protected. For example, a compartment elevator inspection would be allowed, but breaker relay trip testing would not be allowed as a human performance issue could lead to a bus trip.

For large components, consider posting room doors or general area ingress. When protecting an entire system, consider placing barriers on control panel controls, in front of room/area ingress points, in front of the main load center under which a majority of the breakers are located, and around instrument racks that provide system trips. CAUTION Though a consistent list of protected equipment when taking an SSC out of service is desirable, additional SSCs that may also be out of service at the same have the potential to increase the list of protected equipment. The configuration specific results must be reviewed to validate the protected equipment list. 4.3.8. UTILIZE predetermined protection schemes (if available).

1. Deletion of elements from the predetermined protection scheme must be approved by the Shift Manager and must be covered by another posting method.

2. More extensive postings must include all elements of the predetermined protection scheme.

OP-AA-108-117 Revision 0 Page 7 of 10 4.4. Work on or Near Protected Equipment (CM-1) 4.4.1. Generally, work on or within 2 feet of protected equipment will not be allowed. Exceptions to this rule are as follows: Operator performing rounds, inspections, and alarm response. Fire Brigade Members and the Medical Response Team during response to emergencies. Personnel performing Abnormal Operating Procedures / Emergency Operating Procedures / Emergency Plan actions. Security Officers who have received an appropriate brief from Shift Management and are performing their official rounds or alarm response. Radiation Protection personnel performing non-intrusive radiological surveys and are responding to radiation alarms / changing plant conditions. Fire Patrols who have received an appropriate brief from Shift Management and are performing their official duties. Electrical and instrument maintenance activities on loads supplied by protected switchgear, load control center, or vital instrument busses provided that the load is isolated from the protected equipment by a clearance or over-current protection (e.g. fuse or breaker) is available to isolate the protected power supply from equipment fault or personnel error at an energized work location. Changing burned out light bulbs. Other activities as approved by the Shift Manager. NOTE: It is understood that emergent equipment failures may occur and a required surveillance test may need to be performed on the protected equipment to prevent the test from becoming overdue. Planned system or component outages should take into account protected equipment requirements and the surveillance test schedule prior to removing the equipment from service. 4.4.2. The following evolutions should not be performed on protected equipment: Corrective or elective maintenance, Preventative maintenance which is intrusive in nature, Preventative maintenance or non-critical surveillance testing where an unsatisfactory outcome could render the equipment unavailable, Any evolution where human performance error could result in damage to or loss of the protected equipment unless the Shift Manager agrees there is reasonable assurance that no adverse effects could occur, Equipment or system operation which renders the protected equipment unavailable, or Work on electrical sources that could fault switchgear or load control centers.

OP-AA-108-117 Revision 0 Page 8 of 10 4.4.3. If work on protected equipment is absolutely required, then COMPLY with the following: Work must be authorized by the Shift Manager, Work group will receive a protected equipment pre-job briefing from the Shift Manager, Discuss the conditions that would make the protected equipment being worked on unavailable. Identify barriers in the planned work that will prevent the equipment from becoming unavailable, Continuous work group supervisory oversight of the work activity, Operations will consider whether additional posting is required due to work in the area, and Operations supervision will provide periodic monitoring of work in the affected area. 4.4.4. If work within 2 feet of protected equipment is absolutely required, then COMPLY with the following: Work must be authorized by the Shift Manager, Work group will receive a protected equipment pre-job briefing from the Shift Manager, Discuss the conditions that would make the protected equipment become unavailable. Identify barriers in the planned work that will prevent the equipment from becoming unavailable, Periodic work group supervisory oversight of the work activity, and Operations will consider whether additional posting is required due to work in the area. 4.5. Protected Equipment Tracking Sheets 4.5.1. TRACK protected equipment using a tracking log. 4.5.2. The tracking log may be hard copy or electronic facsimile and has no retention requirements. 4.5.3. The tracking log will be completed by Operations and it shall contain the following minimum information: Equipment number or noun name Location and type of posting device Installation check-off information Removal check-off information

OP-AA-108-117 Revision 0 Page 9 of 10 4.6. Protected Equipment Verification and Communication (CM-1) 4.6.1. WALKDOWN protected equipment postings during rounds and VERIFY the following:

1. The postings remain properly established.

2. No unauthorized work is being performed on or within 2 feet of the protected equipment.

3. There is nothing in the area (e.g., scaffolding) that could interfere with the functioning of the protected equipment.

4.6.2. ENSURE frequent communications to station and supplemental workers identify the status of protected equipment and any planned protected equipment changes. 4.6.3. REVIEW protected equipment at the following meetings or briefings: Operations shift turnover meetings Daily / shiftly standard department (including contractors) briefings Daily POD meeting Shiftly Outage briefings Daily Online Work Control meetings 4.6.4. COMMUNICATE protected equipment status changes and emergent conditions requiring equipment to be protected to station and supplemental workers.

1. Communications may include a plant PA announcement.

4.6.5. COMMUNICATE switchyard protected equipment to the Transmission Operator and INFORM them that the protected equipment is considered vital and no actions should be performed that could jeopardize power availability.

5. DOCUMENTATION 5.1. None

6. REFERENCES 6.1. Commitments 6.1.1. CM-1: INPO SOER 09-1, Shutdown Safety (Steps 4.2.5, 4.3.1, 4.3.2, 4.3.5, 4.4, 4.6) 6.1.2. CM-2: Braidwood License Amendment #108 (Steps 4.2.1.1 and 4.2.2) 6.1.3. CM-3: Byron License Amendment #114 (Steps 4.2.1.1 and 4.2.2) 6.1.4. CM-4: Clinton License Amendment #141 (Steps 4.2.1.1 and 4.2.2)

OP-AA-108-117 Revision 0 Page 10 of 10 6.2. Procedures 6.2.1. HU-AA-1211, Briefings - Pre-Job, Heightened Level of Awareness, Infrequent Plant Activity and Post-Job Briefings 6.2.2. OU-AA-103, Shutdown Safety Management Program 6.2.3. WC-AA-101, Online Work Control Process

7. ATTACHMENTS 7.1. None

ATTACHMENT 4 SX System Piping and Instrumentation Diagrams List of Attached Documents

1. M*42, Sheet 1A, "Diagram of Essential Service Water," Revision AN

2. M-42, Sheet 18, "Diagram of Essential Service Water," Revision AN

3. M-42, Sheet 2A, "Diagram of Essential Service Water," Revision AW

4. M-42, Sheet 28, "Diagram of Essential Service Water," Revision AW

5. M-42, Sheet 3, "Diagram of Essential Service Water," Revision AZ

6. M-42, Sheet 4, "Diagram of Essential Service Water," Revision AN

7. M-42, Sheet 5A, "Diagram of Essential Service Water (Primary Containment Vent System)," Revision AE

8. M-42, Sheet 58, "Diagram of Essential Service Water (Primary Containment Vent System)," Revision AE

9. M-42, Sheet 6, "Diagram of Essential Service Water," Revision AZ

10. M-42, Sheet 7, "Diagram of Essential Service Water," Revision AE

11. M-126, Sheet 1, "Diagram of Essential Service Water," Revision AZ

12. M-126, Sheet 2, "Diagram of Essential Service Water," Revision AD

13. M-126, Sheet 3, "Diagram of Essential Service Water (Primary Containment Ventilation System)," Revision AE

I-I I . ---- ._----------- ----------------;;.;-...=-.-.-------------- - ~

                                                                                                                                                                                                                                                                                                                                                                                                                        --.....rv           ~'"       "",,",-_

I v NOTES:

                                                                                                                                                                                                                                                                                                                                                                                                                                          ~I                                                                                            I. ALL PIPING IS CATEGORY I I
                                                                                                                                                                                                                                                                                                                                                                                                                                           ~ ~.CI     r1        1SX036           I                                                           QUALITY GROUP C. EXCEPT
                                                                                                                                                                                                                                                                                                                                                                                                                                          ~ ~ L~

AS NOTED. I 1SX035 h NOTE 7 ISl- "-------N--=-cOT=E-7-1---.J~ \...... ~~ j 2. ALL PIPING IS PER PIPING' I ,....-_ _- SODIUM I ....... j DESIGN TABLE 105B8. (ICF53CB ~)--- HYPOCHLORITE -------~ EXCEPT AS NOTED. I F SUPPLY 1SX33A 1)

3. SEE DRAWING 1.4-82 FOR L --< 1SX32A I-' .. /M-51-3A1' I ....... " EI " '"

                                                                                                                                                                                                                                                                                                                                                                                                                         ~~,,-,-, ~                       A. A. A   ~

4) A ESSENTIAL SERVICE WATER PUMP DRAINS. I I SX I ~ I CF650 or"" -- - - I I NPS-151 ~ I~ I ~1SX13A 36) 4. FLOW ELEMENT IS CLAMP MOUNTED V ~ I I I 1SX 192B I---_ POlS i C---t"'-- - - - - AH

                                                                                                                                                                                                                                                                                               -I I

B

                                                                                                                                                                                                                                                                                                                                                                                                                                           ~
                                                                                                                                                                                                                                                                                                                                                                                                                                              ~

Me ISX~* 034-2 8HSSX02B EI2

5. POWER-LOCK-OUT SHALL BE IN EFFECT DURING ALL

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            -NORMALN O~ERATING MabES.

PT IPM06J POWER SHALL BE RECON~ECTED

                                                                  ~__...;.;EI2                                                                                                                                                                                                                                                                       1 FE                                                                                                                                                                                   ONLY WHEN SUCH POWER IHS                                             ESF LOGIC
                                                                                                                          >----,                                      IISXI93B~ ~                                                                                                                                      - IAL 2C
                                                                                                                                                                                                                                                                                                                              --                  SX147                                       TRAIN lOB" 2SX40 ESSENTIAL SERVICE WATER PUMP-IB RESTORATION IS SPECIFICALLY ALLOWED BY PLANT OPERATING SXOl8                                                                                                                         ,         ;:;              7                                                                                                                                                            HEAT EXCHANGER 4~~                                     ~~                                                                 ~3                                                              NOTE 4                                                                                                                  CUBICLE COOLER                                         PROCEDURES OR TECHNICAL                        I
                                                                                                                                                                                                                                                                                       ~~

(ISXC9BB UNIT-I SPECI FI CATIONS. IIPM06J 1......-<r,I~S~XI!16~A~BC=:l3)-~'~'U 1SXOIIolB ~ = ,:;~ HsEI2 I 20).~M-42-3

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              -42 Fe-2 A                                                                                     I a-l
                                                                                                                                                                                                                                                                                                                                                                                                                                                         \..!                             /

I ISXI41B I ISXI42B r-< 1SX04AB 7 C4 6. THE PREFERRED FLOW ORIENTATION OF

                                                               --I                                   ~E12                                                             1
                                                                                                                                                                                                                                                                                                                                                                ~                                                                                                                                                                            THIS VALVE IS TOWARDS THE STRAINER.

I r IHS \ S)(002 IPM06J ~ ~ ~

                                                                                                                                                                                                                                                                                                                                  'I ISXI44B I EI2 r I SXO I      15X26 I
                                                                                                                                                                                                                                                                                                                                                                                                                            ""                                          _1-2SX40 EI2 2SX40     1_

7. STAINLESS STEEL VALVE I

                                                                                                    ~)(004, rt'l I                                                                                                                                                                                                                                                                                                                                                                                                  PER DESIGN TABLE 140BB.                       I g                                                                   ~                                ~ S~~6                                                                                       ~                          Ob~2 "-~ S~~:O I Mel ISX 001B-2          I                      IPL05J 1SX23    T ---..
                                                                                                                                                                                               == .-'l                                                                                                    1                                                  '"                I S'O'2.

E ----......L-------- --1'T' ~ E: JrIII I.. r<ISXC6A 24) 1..... 1

                                                                                                                                                                                                                            . ....                                   ,..                                                                                            L*O*                                                    V)                                             I PM06J I"'"":"':=....-ri~ .... -

II' I ,. 4~ C.p I~x I V) TN ~ UNIT 0 COMPONENT

                                                                                                                                                                                                           !~I~~~ 6:~~~IIS-X-0-1-~-_--~~~-~fL-JI~r.-~---Gr~s~ro~2~A~a=]3~6~--~-~~~
                                                                                                                             -T 15X22                     (1SX84BB                                                                                                                                                                                                                                                                                                                                     COOLING WATER 1SX22                                                                      /          11..-                  .....,/-1                                                                                                                                                                                                                                                                                                                      HEAT EXCHANGER I
                                                                       ",                                                         J.~. _ . . '36-X2';:: L             -. \                                                                                                                                                                                                                                                                                               --(r.02§S~XQ]02~DC~:3@O~~"'~*lj                                                                                   I t

2A P.L.O. U1 I 36-X30-~..J - 11 SX23 l -S-X3" "--f I SX 1438 I ~ 7 E8 I RED.' J RED.:rr I SX002B (IWER7AB :3 ~~ "'. RED. (NOTE 6) I i NOTE 5 I F2865 105B'B.A .1 ISXOI Isxoll 0 J

                                                                                                            ~

3-X2" or EI2 EI2 TO BYPASS 2SX036 I VALV~ OSXI62B NOTE 7 I HIGH POINT I

                                                                                                                                                             ~                                                                  RED.                                III      ~

VALVE 1":'1 OPSOl38 I --~~I'  ; ESSENTIAL SERVICE _ATER PUMP ISXOIPB-2 III II) ESSENTIAL SERVICE WATER STRAINER-I B =

                                                                                                                                                                                                                                                ~
                                                                                                                                                                                                                                                ~
                                                                                                                                                                                                                                                                    ~

Kl 1 I OTEW SX091 s~1~1 I

                                                                                                                                                                                                                                                                                                                                                                                     -----1 2SX035 M-~~-7)
                                                                                                                                                                                                                                                                                                                                                                                                           ~

h

                                                                                                                                                                                                                                                                                                                                                                                                                                    ..   ~ j
                                                                                                                                                                                                                                                                                                                                                                                                                                 \ ...-.------_ _~

IB

                                                                                                                                                            ~             ISXI398 I                           I SXOI FB-2                                 :         ~          <t~                       I                              TEWIT HS NOTE 7 I \......

E22 I ' " ..... ,

                                                                                                                                                                                                                                                                                                                                                                                                                                   \....c 2SX33A 1')                                                                                                                     I
                                                                                                                                                                                                                                                                                                                                                                             ~

3C \ Me L 2SX32A 4) I TURBINE ~~ ISXI3SB 1 ~ISX86BB II?) "" N 105BB loo~q ISX hlJiL SX028 .- 2SX --IS] I BtJILDING III 1SOB 034-2

                                                                                                                                                                                                                                                           ~

I IWEOIOB ~ 2Pt.406J ED EI2 N.C. 1 I PS IPI IWES28B 2 ~

                                                                                                                                                                                                                                            ......-                                                                                                                                                                                                                                                                                                                                        1 o

V) 2G SX020

                                                                                                                                                                                                                                                                                        ~t- ~ I SX93BB
                       ~                         ~I IWE009B    I              CAL                                                                                                                                                   HYDRA- STOP..I

8) 0

     )M-68 -3 "\....>--,r.L-I_.fA~-4-.                                                                                                                                                                                                                            FITTING                   l     AUX. BLDG ...I~URB. BLDG.                                :      OUTDOORS                                                                                                                                                                                                                 I
                                                                                                                                                                                                                                                                                                      .-_                l rOPs'::. ~.~ /~

ID ESS. SW. SUMP "B- BASEMENT

• i* I ED 100BB 105BB ... I I 2~ A-703

                                                 ><o
                                                                      -(IWE$9AB                 T7     83                                                                                                                                                                                                    S           II                                I                        WASTE TREATMENT                                                                                                                                                                                        I J~~ ~

V) II) N 1 I BUILDING I OSXI75B ~

                                                                                                                                                                                                       ~05.£~9OB.                                                                             7---r:t-....JII----....i..-UOS~X9~9~B~B=J:1D2~M-~ij-4 L.....<     .1                                  !                                                                                                                                                                                                                               I 1058B ~                                                                                                                                   (2CF53CB               4                                   SODIUM                  (-0-S-X9-9-A-B--12-V
                                  ....--I~                                                                                                                                                               )---                        HYPOCHLORITE                                                                                                                                                                                                                                                                                                                                          I SUPPLY ESSENTI AL SERV I CE                  ~

T I l\ ,-. " ,.1M-51 -3V

      / /"                                    V WATER COOLING                                                                                                                                                                              A                                           EI "
                                                      >- ~S-X36" II TOWER-DB
      "'M- 42 -6 C3
                 ~-O""'SX-O-' " ,-g-                                                                                                                                                                     _I 2SX 14 2CF650_
                                                                                                                                                                                                                                                                                                                                 -<OSXBI AB             ~4

L.I' I......- HIGH POINT VENT I RED. 1 NPS- I 31 1"'--0-SX-I-7-7---.1-1

                                                               <TYP. )                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     I POlS 10                                                                                                                                                                                                     U TURBINE                             AUXILIARY                                                                                                                                                                                                                                                                                                                                                                                                   N                                                                                                                  I OUTDOORS        BUILDING                                                                                                                                                                                                                                                                                                                                                                                                                                         C>

BASEMENT ~ BUILDING I 2SXI92B AH B ><

g I (EMBEDDED) E22 PT 2FE ESF LOGIC 20 SX147 E22 c Is:~~. I >>----1 4~~

                                                                                                                                                                                                     ,        ;:;           ~7
                                                                                                                                                                                                                            ~~
                                                                                                                                                                                                                                                                                              't7 I
                                                                                                                                                                                                                                                                                              ~~
                                                                                                                                                                                                                                                                                                                        ---    IAL                            NOTE 4 TRAIN "B" HEAT EXCHANGER                                    ~                                                                                                                                          C l I
                                                                                                                                                                                                                                                                                                                                                                                                                                             ~

(2SXC9BB UNIT-2 IS::~2r i m

                                                                                                                                                                                                  =~                                                                                    ~

m I 2PM06J

"-f 2SX I 41 B 20).~-h~6-1

                                                                 --!:1                                                                                                  I  25XO I MB..t--....                                                              I             I 2SX I 42B                                                                              r-<2SX04AB                                                                            12PM06J o                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            I
                                              ><                                                     M             22                                                                       ~                               ~                                                                 '~
                                                                                                                                                                                                                                                                                                                                                                  ~

V) Me N

                                                                                                                                                                                                                                                                                                                                                                                 .1 ISXOI         15XOI I                                                                                                                                                                                  I 25)(14491                                                                                                25X MO        II                ~

2PM06J I "" ED "" 0 ~ 005-2

                                                                                                                                                                                                           ~ ~                                                                                 ~'                                ::><~2 I

2SX 1_ T22PPLLl05J ~ 2S.21 I

                                                                                                                                                                                                  ==                                                                                                                                                          ~~

001 B-2 _ I 2SXOl28

                                                                                                                           -                l         r<~2~S~XC~6~A==~24~~)                                                                                                                                                                                          lO*

I>< I I ~~ I I r~ -...

                                                                                                                                                                         ~~~X~B A 36-X30- 'I 2SX20 II             I                                                                                                                                                                                                                                                                                              ><

II II lQ --{)SXC9C. 6) 1SXO 1 ,... III I _12~2IT ll~.~~8-~-3-----~1~1~~~-~--L'r~lr.~--~J2i~~o~2~~E~36~,~-~ R£D.~ / N i __ 2SX20 I It "'1

                                                                                                                                  'f~

H~ J' 36NX2~ 1 ~

                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~Ir I

IT P.l.O. Dr I '-1

                                                                                                               ~

REO.;;: I 2SXI43B ESSENTIAL SERVICE WATER NOTE 5 I F2965 I 05BB (2SX84BB 4 CAP PUMP-2B

                                                                                                               ~                                                                                                  2WER7AB                  3}--
                                                                                                                                                                                                                                                       .A
                                                                                                                                                                                                                                                            \1                ...RED.                   III             (NOTE 6)                                            E22        E22           TO BYPASS                                                                     CUBICLE COOLER I

B

                                                       ------.--J               ID CD
                                                                                  -~                            ""

ID In III r 1 ESS£NTIAL SERVICE WATER PUMP' 2SX~I:B-2 CD

                                                                                                                                                                ~
                                                                                                                                                                ~

3-X2" RED. --I

                                                                                                                                                                                                                                                  ""~

III CD

                                                                                                                                                                                                                                                                              ~

N CD ID rt'l a'I TEWIT 3D hlJir-1 \ 1\-

                                                                                                                                                                                                                                                                                                                                                          ~         OTEW SX093 OTS SX093         -
                                                                                                                                                                                                                                                                                                                                                                                                -1 VALVE OSXI62D M-42-7)

B7

                                                                                                                                                                                                                                                                                                                                                                                                                                           --(r;2~s~xDI6~A~B=:13)-o""::'\J~.u-
                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                      .12SX41 2SX41 I 42 C-B- 2A B I I

o o >< II) .., C VI

                                                                                                                                                                                                                                                                                                        ~
                                                                                                                ~                                               ~~                                                                               ~                                                                                                                                                                                                                                                                                                                                         I a'I ESSENTIAL                                           ><

2SXI39B1 V) I Me SERVICE WATER iI N L - - ------.t---::-2~SX~ I I ~~ 25XI3S8 1 ~2SX86BB I)?) STRAINER-2B 150B 2SXOIFB-2

                                                                      ~\ b----I~~~-

10588 IODe8 I E22 I 2WEOIOB - 2PI ~~i--"" I SX020 2WE82BB 2

2. . I I

II L 2WE89a 2 A- 7 03 CAL ESS. SW. SUMP "B-H

                                                                                                                                                                                                                                        ~~

100BB 105BB I I -----_..::..====-~:-:_=-=:::=::_----------- 83

                                                                                                                                                                          --------.--------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                I I

DRAWING CONTAINS lSI LAYERS I I CONTACT lSI GROUP PRIOR TO REVISING I I A REV DATE DESCRIPTION FOR RECORD-INCORP. OF EC# 357827 PREP. REVR. APPR. AI AN EDSF EDSF EDSF EDSF I DIAGRAM OF ESSENTIAL I I SERVICE WATER I I I SCALE  : NONE I NUCLEAR SAFETY RELATED DATE :01/21/98 M-42 I EQUIPMENT IS SHOWN f;D~RA~W~N~BY~:~8H~D~=1::;;::::_:::=~_:;_7:.,r.:::'::_~+~ I B ron ON THIS DRAWING -':ORG. BY :5040 SHEET NUMBER: 1A SIZE: F M05 I I CRITICAL CONTROL ROOM DRAWING I 8 7 6 5 4 3 L _ -- 2 _____ 1 J

I- ------l 8 7 6 5 4 3 2 1 I 8NIMV~O ~OO~ lO~lNOJ lVJI1I~J I I I I I I

                                                                                                                                                                                                                    ;oatl~oBB                    SODIUM                                                                                                                                                                                                                                                                                                            I CF=5~3 ....

(,...i.... CA-- 4 ) - - HYPOCHLORITE I SUPPLY I I

                                                                                                                                                                                                                                ,r *        (M-5~ 1- 31\(                                                                                                                                                                                                                                                                                                          I I F                                                                                                                                                                                                                        _      I SX I I I CF650                                                                                                                                                                                                                                                                                                               F I I NPS-9T
                                                                                                                                                                                                               <                                               POlS I                                                                                                                                                                                                               ~

(.) I--_I_A~I"-- ---'-1 I

                                                                                                                                                                                                                     -w VI I                                                                                                                                                                            I   I SXI92A                                                                         AH                              I                                                                                                                                                                                                                                                                 I B

I Ell PT 1 FE I

                                                                     ---IH-S---'                                     ESF LOGIC
                                                                                                                                                                                                     ~ -                                                                                                            2A                             SX146 I
                                                                                                                           >--l                                               I    ISXI93A
                                                                                                                                                                                                             "'.,          -                                                               ~~
                                                                                                                                                                                                                                                                                                               ~--

IAL TRAIN "A" HEAT EXCHANGER I

                                                                                                                                                                                                                                       ~~~---.                                          J SXOl7                                                                                                                                                                                                                                                                                NOTE 4 (ISXC9BA                4~L                          (.)                                                                                                                                                          UNIT-I                                                            ESSENTIAL SERVICE WATER
                                                                                                                                                                                                                                                                      ,..-----,             I~
                                                                                                                                                                                                                                          ~                                                                         ~~r-----.....,

IPM06J Ell I PUMP-I A

                                                                                                                         ---IH~S--'                                                                                                             ISXI41A                     ISXI42A                                                                 -(ISX04AA             20~SM-42-3 "7 F4                                                                          CUBICLE COOLER I ISXOIMA~.
                                                                                                    ~Ell r IHS \                SXOOI
                                                                                                                                      -                                                                                                 t                                                   ~

I"'l ~ ISXI44A

                                                                                                                                                                                                                                                                                                                                                   ]                 I I SX25        I SX25 l_
                                                                                                                                                                                                                                                                                                                                                                                                                                                  . . . _ - - -....-'-.MiJ**

• 2B

                                                                                                                                                                                                                                                                                                                                                                                                                                                 )l                     ~ E-8 I

t'" Ell I

                                                                                                    ~~                      IPM06J          I                                                                                           <                                                   <                       I"'l I"'l     I SX40       I SX40 I ISX21
                                                                                                                                                                                                                                        ~                                                   ~                                         ITW                                                                                                                                                                                                                          I I SX
                                                                                                                             ~                                                                                                          ~                                                   ~ I                                     SX025 001 A-I                         T!PL04J ir------I.....-----~                                                                                                                                ?                                                  Y                         ~                            ,                                                                                              ~                                                                                                                 I 8

0 1--0' I SX I 2A EI r f:,'SXC5A 24) CAP

                                                                                                                                                                                                                 ~                                                                                                   ~                                                                                                                I~         ~                                  HS E

I SX20 ,-

                                                                              - -11
                                                                                     !I 36"'X30" -I I SX20 RED.   ~ /'

• I (, SX84BA 4 ~

I I/) "-{ISXC9CA 6) [><.. I,~'S_X_25 __ I-_ _ ""';"_-f,r_.....JJ__~_T""";L_T<Iill~LJ[}

                                                                                                                                                                                                                                                                                                                                       'I                                                                                   ""~

_ ~~~ MO 1 ISX 004-1 ~. SX029 UNIT I COMPONENT E:

                                                                                                                                                                                                                                                                                                          ~

T I SX02AA 36 - I PM06J COOLI NG WATER

                                                                --....f~                                                         '--~n....' 36"X24=1                                 "'\\.i                                                                                                                                                                                                                                                                                                                                        HEAT EXCHANGER II

_ .... I ISX21 I I

                                                                                                                                                                                                                                                                       ~~eNX3'"                                      ISXI43A                                                                                                          ~~
                                                                                                                                                                     ~

P. L.O. 1 -

• RED. I SX002A

                                                                                                                                                                                                                                                ~                                                                                   9)                                                                                                                        r ---<I~m~:::]Q}---7-----+~'\..~U-42 L ~
                                                                                                                                                                                                                                                                      . , IRED                                                                                                                                                    ..._ _tIooo-_--4\L                                                                                          - 28 NOTE 5                     F286~ 1058B    ~                                                                                                           ( 'WE R1AA                                                  *                             ((NOTE                                       ~II                               Ell        TO BYPASS                                                          ISX02B             30                                     /   08                     I 3        ~~             T I                     ~                                                                                                                                         .-            ~         0-
                                                                                                                                                                                                                                                                              ~                    I
                                                                                                                                                                                                                                                                                                                         .J\.  ....                                                                   VALVE-OSXI62A HIGH POINT                                                                                                          I             I                  :                                                                                                                                                                     TEWIT                         OTEW           OTS         __ * .-J M-42-7)                                                                                                   r    I SX25   I SX2S1                       I VENT                                         -       .    -lG_      I                                     ESSENTI AL SERVI CE                    ~~                                                                               ~              Q)       ~                                                              3A    i\                   SX090         SX090              I      BI   .

r.1 I ~ WATER PUMP ESSENTIAL SERVICE ,r- < ~ hAHLI \ I

                        ~ OPSOl3A I                                                                         :g i

ISXOIPA-I-g ~

                                                                                                                                                                     ~

WATER STRAINER-IA I

                      ~~                                                                                                                      IA                                    ISX139A           1            ISXOIFA-I                    CD                   ~         A'C~                L __ ~"':;:,~:='x---l                                                                                                                                                                                                                                           I
                                                                                                                                                                                                                                                ~   3"X2'"                     ~v                                     150A TURBINE                                                    I                  ~---IS-X-13-8-A"""1                                        ~I SXB6AB                        1/2 )                                   ~ RED.\                                                                                                                                                                                                                                                                                                            I
                       ~

VI BUILDING

                                                                       'l
                                                                       ~                L   -----

I PS 2E IPI SXOlg Ell CD

                                                                                                                                                                                                                                                ~
                                                                                                                                                                                                                                                ;!  W-"
                                                                                                                                                                                                                                                             \

I

                                                                                                                                                                                                                                                                      ~-~--...,                           _ _ _...J 8)

MO ISX 033-1 r-- III N X I/) I I

                      ~

I'*" - " I SX93BA I WE:009Al - - - CAL

                                                                                                                                                                                                                                           ) 1 - - - -...                                                                                                                                                                                    -c                                                                                                                    I D
                                                                                                                                                                                                                                                                                                                              -I-                                                                                                                                                                                                                               D r-J-(I WE82BA               2                                                                    AUX. BLDG. :                     TURB. BLDG.
    )M- ~~ -:5 '\. _I        f><}:::1--~                                                                                                                                                                                                    I I WEOI OA 1-x t

til BASEMENT I

                   ~4~

c( ESS. SW. SUMP "A" I (oPS11 AA / , 10 C H

                                                                           --<-I-W-E8-9-AA--2...... A-Z 03 6                                                                                                                                                                        HVDRA -STOP I

I I

                     ~~Js> ~

X III FITTING I I OSXI75A ;OB: 90BB I I I I I SODIUM ESSENTJ AL SERV I CE WATER COOLING

                                       '05BB :
                                 .....t - - - GO
                                              ~

T >-

                                              ~..i r~

I

                                                                                                                                                                                               . - - - - - 4}---

(2CF53CA A h

                                                                                                                                                                                                                                   ,r HYPOCHLORITE SUPPLY
                                                                                                                                                                                                                                              /M-SI -3A7 EI    "

I SX04 I V VI TOWER-OA (OSX99AA

         .. '" >-<OSXOI
    >M-~~-D          ~~~~~_.....J AA        48 4e"'X36'"

RED.

                                                                                                                                                                                                                          .... 1 2SXII 2CF6501 12 7                               OSXI76    h                                                                                                                                                                                                                 I (TYP. )                                                                                                                                        <

NPS-Ill L..-...-_ _- I L'-"t4~ HIGH POINT I en (.) POlS 18 ------ f ~ VENT TURBINE t AUXILIARY >< l(OSXB1AA 3{4 OUTDOORS BUILDING BUILDING VI I I 2SXI92A N AH BASEMENT PT I (EMBEDDED)

                                                                      ...---....,E21                                                                                                                                                                                                                                                                 B c                                                                           2HS ESF LOGIC r 2SXI93A ~"'.,                  -~-W        ...

28 2FE TRAIN MA" C l

                                                                                                                            >--\                                                                                                                                                                                                             SX146 HEAT EXCHANGER                                                            ESSENTIAL SERVICE WATER
                                                                                                                                                                                                                                                                                             ~~

SXOl7 (2SXC9BA 4~~ u NOTE 4 UNlT-2 PUMP-2A CUBICLE COOLER I

                                                                                                                                                                                                                                                                                        ~
                                                  <                           12PM06J                                                 E21      I 10 I   2SXI42A                 I                                               ,....(2SX04AA          20).~-126-1                                                               r--           .....~"-M~.,. 2B r7 o

X VI N

                                                 \,

1----\1 ~21 2HS SXOOI r 2SXOIMA ~

                                                                                                                                                                                                                                                                                              ~
                                                                                                                                                                                                                                                                                                                                                                    -r   2SX25         2SX26 F5
                                                                                                                                                                                                                                                                                                                                                                                                                                                   ~

I""l ISX41

                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /

ISX41 I C8 I I

                                                                                                     ~                       2PM06J            I I

2SX23 2SX 1I2PL04J I  ::= I 001 A-I II,..-------&....-.- - - - I r(2SXC5A 24 J 2SX22~-* ~ - ~I II 'I 2SX22 I 36"'X30'"

                                                                                                                              --'1. /                 1...-.
                                                    ~-~--_~~~l~~I_-_~

I P. L. O. QI I __~~--~-~~~~~ 36~24~ I RED.

                                                                                                                                          -                 RED.       ~

I I I NOTE 5 I F286§ 105BB ~

                                                                                                               ~

I"'l I I < I B I

                                                                                                                                                                        ~

ESSENTIAL SERVICE GO B WATER PUMP X I/) 2SXOIPA-1 N <

                                                                                                                                                                       ~/'i 2SX139A 1 2A                                                                                                                      <                                                                                                                                                                                                                                                                                           I I""l
                                                                                                                                                                                                                                                                       ~                                                                                                 E21                                  ,..-

ESSENTIAL SERVICE

                                                                                                                                                                                                                                                                                                                                                                                                               ~

8 I

                                                                                                                                                                       ~Jr                                    WATER STRAINER-2A I/)                                                                             E21            HS                 1010 I~   T ~

N

                                                                                                                                                                          ~2SX86AB                        II?)        2SXOIFA-1 OTEW SX092 SX027          --       2SX 033-1                   N                                                                                                           NOTE:                                   I 1058B 100BB                         TO BYPASS                                    2PM06J                                 .I                                                                                                                      FOR GENERAL NOTES SEE E21                                                                                                                                VALVE-OSXI62C                           E21      ,-------...                       /0 ~                           -IN                                                                                          M-42-IA.                            I
                                                                                                                                                                                                                                                                                                                   <M-~22-7 ~_                  OTS             (-...;;;.;~..;;.;..;.-..-;;..;~

2SX13A 36').-/' 1-' N VI 2PI SX092 ~u. ~u. I I SXOl9

                                                                                                                                                                                                                                                                                                                                                                                                                                  ?'\

2WE82BA 2 MO I I 2WEOIOA I- 2SX I ESS. SW. SUMP "'AM 150A I I 2WE8*9AA 2 I I I I I A REV DATE DESCRIPTION FOR RECORD-INCORP. OF EC #362876 PREP. REVR. APPR. AI AN EDSF EDSF EDSF EDSF I DIAGRAM OF ESSENTIAL I I SERVICE WATER I I I SCALE  : NONE I DRAWING CONTAINS lSI LAYERS NUCLEAR SAFETY RELATED DATE :01/22/98 M-42 I EQU IPM ENT IS SHOWN ~D~RA~W~N~BY~:~BH~D=:==I;:~~:::~~~;=--r::~::-;~77;;~ I CONTACT lSI GROUP PRIOR TO REVISING B ron ON THIS DRAWING ORG. BY :5040 SHEET NUMBER: 1B SEE: F M05 I I CRITICAL CONTROL ROOM DRAWING I L _ 8 7 6 5 4 _____ ~ 1_ __ __ 2 _ _ 1 J

I- ------l 8 7 6 5 4 3 2 1 I 8NIMV~O ~OO~ lO~lNOJ lVJIII~J I I NOTES: I I .UNLESS OTHERWISE INDICATED I IVAOISB-IB ALL PIPING IS SAFETY I I r,SX2157D 2~NX 2 N __________ , 2Y-"X 2 2N ISX2158D I ISX200B I CA TE GORY I. QUALI TY GROUP C. I I ISXI6BD 2

                                                                                                                                                                                                                                 -;.I-                  RED

_ _ ........c=: D\t{]: JRE.D... ....-; ISXI7AD 2 I SX94BA EI2 2.SPEC.F2865 OUTDOOR HEADERS. j.UNLESS OTHERwISE INDICATED ALL I PIPING ON THIS DRAWING IS PER I _ /2SX40:  : 2SX431_~ PIPING DESIGN TABLE 105BB. I I 1

4. VALVE EQUIPPED WITH A ROTATIONAL I F ESSENTIAL 1

1 1 I 1 1 STOP TO LIMIT FLOW. SEE DWG. F-2918-2 F I SERVICE SD-C-109231. I WATER SUPPLY rlSX2157B 2~NX 2":  : 2~"X 2" ISX2158B I ISX200D I

5. VALVE INTERNALS REMOVED. I RED. :D\t{]:RED' I

                             >M-~~-If'>--~~---(JI]S~xII6~A~BC=3D----------------------T-...I---D---~o                                                                                                                      (iCl~S~XC[1
                                                                                                                                                                                                                           - ~6;:;;B~B~===;:;-2=...)=.-=r-<r1-!         -:              rhl~""---",,-;'                     ISXI7AB         2\-..r::}

6. STAINLESS STEEL VALVE I N

3 X 2" 3"X 2" I RED.

                                                                                                                                                                                                                                                     -12SX40             1-----------1           1-2-SX-4--'31 RED.

t-- 0"1 I r1 I SX046B I PER DESIGN TABLE 0140BB. I I

                                            ~    !ZSX40 zsx401
                                                                     --                                                                                                                                                                                       ESSENTIAL SERYICE                                                                                        C X

III IFE EI2

                                                                                                                                                                                                                                                                                                                                                                                                                      "  ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~-

I WATER PUM' 18 SX042 l " FT! CUBICLE COOlER 8C lD

                                                                                                                                                                      ~ISX2180B N

I ISX2179B ~ I 1SX275B I I N:i

                                                                                       \"X ~N RED.              I                                                            o                      I SXA8AB                       ......I-:S'-X_F-:IA-:B,--_I../~lIi                     .....c., SXF2AB             I\-{)         ISXA7AB         3/4~

NOTE 6 v I ( TYP. 4 PLACES) ~ j", I I OSX050A ~ OSX050B I II SX96 ISX971 0140BB 0105BB 0105BB 0140BB ISXOIAB I SCH. 80 PIPE SCH. 80 PIPE - co x E III N V N V E: C\I

                                                                                                                        'C(

co C\I x OT! SX045 B OTEW SX045 E 12/22 MO OSX 007-12

                                                                                                                                                                                                                                                                                                                                                                 ~-
                                                                                                                                                                                                                                                                                                                                                                      @       OHS SX051 EI2
                                                                                                                                                                                                                                                                                                                                                                                       -                                                                                                                                                                                            lJ) rrl a

x m rrl o x I I

                                                                                                                                                                                                                                                                                                                                                                                                                                  ~               "ly-i ISXI16B 1 X                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Vl                   Vl ESSENT I AL                                                                       III      III            I                                                                                                                                          OCCOIA                                                                                                                                                                                                                                                                                                                 N
                                                                                                               ~

SERVICE WATER SUPPLY 2SX5C 1 1 0 12sx6c ~ 1 (SEE NOTE 5) I

                             )M-:f-I~>---------------.:::=:::::[==g3=:::::=t-------------(]o~s~xQo2~DC=3~0D--------1---J                                                                                                                                                       ~~       p.--+-----'..--------~-t-f'o\hr:_.J)--....-------~t~--L:...-;.J..----.Jtl-------(]0~S~XO~3~A~::::}3Q:0                                                                                                            ,..--                                                          -.1              ~,

I 30"X 24" RED. I~~ N IISX27 Isx021 o NOTE 6 ( TYP. 2 PLACES) X _ II SXO I I SX27 _ COMPONENT CO(L I NO III I 1SX266B ~ I HEAT EXCHANGER C (1 SX99AB 1")- tT EI2 ........... E22 I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ~NOTEV                                                                                       !S:~:O I I

G:} HS SX094 IPM06J 146-12 MO OSX I 1SX265B 6(  ::::L .... }

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /                                                 2PM06J I

I (1SXL1AB 4" 17 I 1 o E22 \OSX 242 0

                                                                                                                                                                                                                                                                                                                                                                                  ~

HS MO / MO 2TE B SX095 147-22 OSX 'C-..::O::.;:S:.:.X.:..:,H.:..:9::.:A..:..---:3:::.,...}-- --,\ .I~ \}-1---'-2S"'--X--I I SX180 011-2 I 2PM06J 1

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    @~~==:}Q}--r--(:O:S:x:J:1:A:::~3:}---1 OSX24A            30 t \~ ~                                    I B
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ~                                  I N

2TE V SX181 X 2VAOJ S~-2BI Vl :OSX 241 NOTE 4 ~ E12 E22 I I 2~NX 2" IIL/\TlI ,2YzNX 2 N 2SX200B'

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ~

HS S~~~1 r2SX2157D 2SX2158D I

                                                                                                                                                                                                                                   -                     RED.                                RED.                                                                                                                                                                                   E22 2SXI6BD        2         01-iiiiii--_"'o(c...J:l~                   LDLlJ tCJ-....---~-;                           2SXI7AD         2                                                                                            2SX94BA                   I~

SX051 I I

1-- 2-" 2FI 1PM06J 2PM06J I 12SX41 2 SX SX042 I I 1

I I I 1 1 ~SX94DA I~ MO MO ESSENTIAL I SERVICE 1 NOTE 4

                                                                                                                                                                                                                                                                                                                                                                                                                                  'y                                                                                                              1SX                                                    I}--         2SX               I 2~X 2":                            2~NX 2"                                     I                                                                                                       2SX200D ,                                                                                    136-2                                                                 136-2 WATER SUPPLY
                              >M-~~.-I~>--....,~---Q2~S~xII ~6A~BC=3D----------------------T-.J---D ... -"":~o
                                                                                                                                                                                                 \2SX2157B RED.

(:2~s~xII~6B~B[===2~>=""'=T'IIIIl:::::~ J[hB] RED. - 2SX2158B I

                                                                                                                                                                                                                             -                                           - : : -r-IJoo"'--_~'O                               2SXI7AB                                                                                                                       ~             2SXBIAB        3 c                                                                                                                                                                                                         3 N X 2" RED.

12SX41 1-----------1 2sx421 3 "X 2 " RED.

                                                                                                                                                                                                                                                                                                                                                                  ---"-0"1-'
                                                                                                                                                                                                                                                                                                                                                                         ~
                                                                                                                                                                                                                                                                                                                                                                                                     *                                                          ~         2sx046Bl C l E22                                            v 2SX I 16B I                                                                                                                    I
                                                                        ~
                                              .. 12SX41 2SX411
                                                                      --                                                                                                                                                                           -           ESSENTJAL SERVICE WATER PU~ 28
                                                                                                                                                                                                                                                                                                               -                                                         Vl
                                                                                                                                                                                                                                                                                                                                                                         ~

2FE (SEE NOTE 5) I SX042 CUBICLE Coa..ER I I ;-[ 2SX21 80B 12SX2i79B ~ 36" DIA. LINE IL I HIGH POINT VENT m

                                                                                      ~rOPS012B
                                                                                                ,...---_ _.....                                                        ~@o        '-t-       ;;~2~S~XA~8~A~BC=J3~/4L~~(::::r--H02~S~X~FII             A~BC=DI, .                           ..-( 2SXF2AB                1~2SXA7AB                 3/4     ~                                                                                                                                                                                              STOP I i I

eJPI PS151

                                                                                      ~~                                             RESIDUAL CHLORINE
                                                                                                                                                   ~_--'-_~-- =0:"-:1-=:0': : -5: :':B : . .,~_1 ~

I SX6001 0140B8 SCH. 80 PIPE _ !2SX98 2SXOIAB 2SX991 0140BB 0105BB (l)

                                                                                                                                                                                                                                                                                                                                                                                                                                         ~

ANALYZER SCH. 80 PIPE ~ I x M-51 -4:L/~--~0~s~x~cDIB~B[JIQI~ (/) I 0PS350B h)-- N I cD B7 "" < (0PS37BA Y'~o I ~ '0

                                                                                                                                                                                                                                                                                                                                                                                                                                                           <                                                                                                                                                                            I o

• to I TRAIN '"BN TRAIN "B" o X Vl OSXI67B 1 B I HEAT EXCHANGERS HEAT EXCHANGERS B ~-~~ - 3~<~--l-....rrO)i:P;C;S:11R6AARB:3~JV4;;"\r1 rOSX173B ( CO~

a rrl X Vl co co uW ..... J",

                                                                                                                                                                                                      ~~

UNIT 2

                                                                                                                                                                                                                                                                 .t.-~ ~6 - I >t--C2~s~x:Q0117HffiBC220Q))--

UNIT I

                                                                                                                                                                                                                                                                                                                                            ~- ~~ - 3 ~-~,-'1Ii5S;XXOO7i7HftlB~2i20()))--                                                                                                                                                                                                                                               I CO                                                             Il'l C\I   a
                                                                                                                                                                                                                                                                                                                                               ~                                                  1--~~"""\---1:f-I~ -,-,NOTE
                                                                                                                                                                                                                                                                                                                                                                                                                           -~- 1-,-,(~1- ",6S_X1- ,1 B Il'l a                                           E12/E22     ~                                                                                                                                                                                                                                                                                                                                                                                                                                                                         I
                                                                                                                                                                                                     @2SX032SX031                                                                                                                                   rl SX24 I SX241 TEWIT                      OTW                                                                                                                     -                          -                                                                                                                  r-                                                                                           ---....r-v- ---.~                                                                                                     I 4B     \              SX043                                                    co         d                                                                                                                                                                                                       1SX271B                     I
                                                                                                                                                                                                                                                                                                                                                                                                            \---.tlll----------------'

r '-/ v " m f-- _ ~ ....,- V' V' ....,- V' V' NOTE 6 < I TRAIN "BN ~ u - ( II I 2SX266B ~r.1, < X _ : : ; : - ESSENTl AL ~ Vl ~ F - 2865 I 05BB rrl ~ I SERVICE WATER yVl I YI x

                                                                                                                                                                                                               ~

0

                                                                                                                                                                                                                                                                                                                                ~

C\I

                                                                                                                                                                                                                                                                                                                                                                                          ~

NOTE 6 ( ~

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               .~~                <'

I RETURN HEADER M-42 A I.::::. tl

                                           -7~7:-_ _ : t-------'-I----t'--~~-----....I.-----------

I

                                                                                                                                                                                                       ,~                                                                                                               ..L 2SX271 B
                                                                                                                                                                                                                                                                                                                                                                                        ~~:::t_.:;.:=::A.::~'-...A~:;;;-;;;.A.~=:....

I 2SX99AB_ 1" '\

                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ~@[KQ~C3[)_--~:::.:::::.::::.-A~,,~~~~

OSX03CB 48 ~ 1__D __J ..... I I I sx021

                                                                                                           ~ AUXILIARY BUILDING                                                                                                                                                                                                                                                                                                                                                                                                                                                            48"X 42" I                                                           1I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               RED

• I I

1 I I 1 OUTDOORS I,. TURBINE BUILDING DRAWING CONTAINS lSI LAYERS I I "I" SUBSTRUCTURE CONTACT lSI GROUP PRIOR TO REVISING I I A REV DATE DESCRIPTION FOR RECORD-INCORP. OF EC# 367626 PREP. REVR. APPR. AI AW EDSF EDSF EDSF EDSF I DIAGRAM OF ESSENTIAL I I SERVICE WATER I I I SCALE  : NONE I NUCLEAR SAFETY RELATED DATE :01/22/98 M-42 I EQUIPMENT IS SHOWN ~D~RA~W~N~BY~:~8H~D==~~:-:;:::~~~~-r:;~~rl77;;~ I B ron ON THIS DRAWING ORG. BY :S040 SHEET NUMBER: 2A SIZE: F M05 I CRITICAL CONTROL ROOM DRAWING I IL C:\WINNl\TEMP\B900e54e80bfb781.dwg 4/8/2BB8 7:36 PM Plotted on 4/8/2BBB 7:36 PM 8 7 6 5 4 3 __ _1_ __ __ 2 _ _ 1 J

I- -- -- -- l 8 7 6 5 4 3 2 1 I 8Z 'lHS Zt-V'-J 8NIMV~O ~OO~ lO~lNOJ lVJIII~J I I I FOR NOTES SEE DWG. M-42 SHT. 2A I I 0PI HIGH POINT VENT rf'1 c..- 1 " X 3/. ." REO.

                                                                                                                                           ~-152-4 I

I PS150 l( \ - ~ OPS028 I .J "7 A2

                                                   ~           ~OPS33A I         I 0PS350A                                                                                     RESIDUAL                                                                                                                                                                                                                                                                                                                                                                                                                                  I rOPS012A                                        314)           CHLORINE I                                                                                                       ANALYZER                                                                                                                                                                                                                                                                                                                                                                                                                                  I

(.PS37M V'~O I M- 5 1 - 42/;';'_ _(]0~S!!X£C1!]8~A:I13Ibi) I F (OPS1eAA 3/.). C1 ~ F I I suol _ TRAIN "A" TRAIN "A-I I I 3"'"'\-_~ OSXI61A HEAT EXCHANGERS HEAT EXCHANGERS

                  ~68-3/

OPS16AA UNIT 2 UNIT I I I F3 " IOSX'73A~ W ~- ~~6-T/>t-~2S~X~O!!7ffiHACJ2~oD~ ~@IS~X:Q:07~H~A~]2@0)_-</ M- ri: -3< I I I~ EII/E21 12SX I 0 2SX24 .. -r . . . lk1SX11A 3"HX~

                                                                                                                                                                                                                                                                                                                                                         ~r I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 I TEWIT                        OTW                                                                                                                                                                                                                                              NOTE 6 4A __ ~

c f--- SX042 4; 4;

                                                                                                                                                                                                                                                                                                                                                          *   ~   1SX271A    I
                                                        ~

TRAIN -A-ESSENTI AL SERVICE WATER

                                                        )(

C

                                                        ~

I I u

                                                                                                                                                       )(

II)

                                                                                                                                                       ~
                                                                                                                                                              ~o F-2865     105BB                                                                                                                                                        -..                                 ~o                                                                                                                                                    I
                                                       ~                                                                                                                                                                                                                                                                                                ~                                  ~

N I RETURN HEADER M-42-T~7:---tr------ RI ~ ..l----t----:-----""*----------.a.* I ... L.. (Q]m~c~!>_---------- OSX03CA 48 ... ---...:I:=N:.--------....:::=t.-------------- ... --. I

                                                                          ~ AUXILIARY                                                                                                                                                                     SA-~I.r1SX07MBl ISX021                                                   BUILDING SX2157C~                              ~a;~T$~(----------~IL'.

r11 VAal

                                                                                                                                                                                                                                                                                        ~~I:-::S~X2~1:-::5~8-=-C..,1                                                                      J; ISX200A              1 I

E OUTDOORS ... TURBINE BUILDING SUBSTRUCTURE II 1-<I,]S!X,D6~B@c==:I2>_~~;)*--~.::~T~::;[f\/'{]~ II SX40: I I I I

                                                                                                                                                                                                                                                                 ..... i II SX621
                                                                                                                                                                                                                                                                                         ,;           ISXI7AC                2                                                            ~..,

ISX94AA ISX94CA Ih 1.Ii 1Ft SX037 Ell E I I I I ~ 7 48"X 42- I

V I 1SX07MA I REO.

                                                                                                                                                                                                                        , I                                    I                                                                                                                                                                                                                                                                                 I 2~")( 2"1                               I                              r1,.....,....",.---~....,1 REl>.(TYP>'                              I                         d         ~ 15X2158A (TIl5~X[1ID6B~A[==12..,.'\.:--~i..L--.-("ri_!~                     I:~
                                                                                                                                                         ..                                                        115X40

[}\/"{]

                                                                                                                                                                                                                                          .... ------- __ :.J            I SX621
                                                                                                                                                                                                                                                                                         'JJ-i I SX 11 AA                            -

2 ......- 3 "X 2-ISX046A I EI2 I I

                                                                                                                                                                                                                                                                                                                                                                                                                                                ~ --

en

                                                                                                                                                         )(

REO. HS MO Ell " F'Tl VI

                                                                                                                                                        ...=.                                                                 ESSENTIAL SERVICE                                                                                                                                                                                                                          ISX 8A                                                                                                                                                                                                                                                                           IFE        ~                                                      SX049                010-2 WATER PUMP IA                                                                                                                              5X031                                                             IPM06J                                                                                          I CUBICLE COOLER
                                                                 \"'X ~.. RED.~J (TYP 4 PLACES) ~                       j                                              .F          I 5X21 80A I                                                                                                                                         I I SX21 19A ~

I 1SX275A

                                                                                                                                                                                                                                                                                                                                                                                                     "- .r-f I SX I 16A I
                                                                                                                                                                                                                                                                                                                                                                                                     .~

I I ISX050A .f'-\~ J~ ,n 15)(0508 L~~*'-11-{jJ15~X~A~8~AAL=J:~/4~~-...:-r:::~:JI]S~XF~I~A~A=::J)I')-H ~ ~~(JJIS~X~F!2A~AC:=JI)......

                                                                                                                                                                                            ........                                                                                             -~:.~-CDIS~X~A1:7A~AC=3~/4L~~~*~                                         NOTE 6 (SEE NOTE 5)

I I"X \- REO. IISX94

                                                                                                                                                                                                                                               \

ISX951 0140BB I"X \ .. RED. 0105BB N I 0105BB 0140BB 1 o I~ I~ 15)(01 AA SCH. 80 PIPE 113 0 I~ SCH. 80 PIPE ",

                                                                                                                                                                                                                                                                                                                                                          ~'

o B Ell )( I oC MO V1 N m N

                                                                                              )(

N

                                                                                                        )(

ITI SX032 IlEW 5X032 ISX 007-1 ~-~ I ESSENTIAL SERVICE VI II)

                                                                                                       '(

IceOIA 1 I WATER SUPPLY I sX3CI 1 1 II SX4C I

             ~M-~~-~>-----------------...::~~~c::;;;e::~~~_r~--------~OI[]S[EXQ]02[iBC:=J3@0~------;-~:                                                                                                                                             ~~        : ...                        ....Ir                                    ---'-:.-::1~,                                                                                   ISX03A            30 o

It'I

                                                                                                                               ~
                                                                                                                               ~                                                   2TE   B SX178 .....---....,

115X2S" COMPONENT COOL I NG HEAT EXCHANGER 15X02-' 30"X 24" RED. (TYP.2 PLACES) I NOTE 6 1SX265A (1 SXL1M 4"

                                                                                                                                                                                                                                                                                                                                                                                                                                                                         =::L r V        7 ......
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ~,

I~~ 2HS E22 I I F1RE PROTEC'TION SYSTEM -i OS)(I14 I 2VAOI SA-2AI B NOTE 6 , ____ SlC049 I M-~~ -1~~~_--- .....OO2!F!P~S5~AC:JI]0>--------1  ;"~OO~S[EX!A7UAC=:II0Q)i)- 125X2157C 2~~X 2- 2~"X 2-NOTE ... 25X2158C I 2TE SX179 ~ 2SX200A 1 I 1SX266A r---- T 12PM06J L.C 2SXI6BC 2

                                                                                                                                                                                                   ;J-,;;;;;;;____R_ED_.+Oc--"':J1              Ff7\:fi ~E1>.
                                                                                                                                                                                                                                        ~ ~ ~r:1)oo+---~.
                                                                                                                                                                                                                                                                                          -           2SXI7AC                 2                                                            ~    \c2SX94AA          In E21                ( 1SX99M         1")                  /                               l MO I

I 115X41:  : 25)tG21 2FI 25X

: 5X031 C l EI2 010-2 c ""'~ ~

                                                                                                                                                                                                                                                                                                                                                                                          ~

2SX94CA 112 MO

: NOTE 4 I HS __ I SX I 2~"X  : 2~H)( 2" ~ 25X21 58A 1

                                                                                                                                                                                                                                                 ];L3 J:r-,.1'""---.(,.!,!J--C2~s~xII 7!1A~A~:12~.......

2 -: 2SX200C 1 SX050 011 -2 i2SX62 RElJ.  : RED. I PM06J I (:2~5~xII~6;:-;:B~AC~~I2""---:---i.L---<

                                                                                                                                                                                                                                     -r--i~-:              I I-                       -
                                                                                                                                                                                                                                                                                                                                 -<:.~J-
                                                                                                                                                                                                                                                                                                                                      ..... ....;!;;;.T"'------.::'"'I~11~,...-------D*~~~-----~~m~C=:JV----~\.....- - - - .                           25X81    AA        3)                                                                     I I                   I                                                                   3H X 2    H       ~~                                                                                                                   -

115X41 ----------- 2SX621 RED ~ ESSENTIAL SERVICE . ~ E21 2SX046A 1 3Sij 16A I I FTI 88 WATER PU~ 2A c: 2FE (SEE NOTE 5) 5X037 I CuBICLE COOLER

                                                                  \ . . )(  ~H RED.~_ I CTYP.4 PLACES) lIlll1                                                                 .F2SX2180A             I                                                                                                                                         1 25X2179Al"-\

i 2SX050o\ ~~ 2SX050B o H:2SXA8AA 3/4)-<::K)sXFIAA I~ N"1 fl-<2SXF2AA I -e 2SXA7AA 3/4~ I 0105BB 0140BB

                                                                                                                                                                                                                      ~\                                 25)(0 I AA ISX991       .~---.."....,"Vtt§ 0140BB SCH. 80 PIPE 0105BB I

I I~ I~ SCH. 80 PIPE .A

                                                                                                                                                                                                                                                                                     '8-E2I E21.                                                                                                                                                                         I B

SERVI ESSENTCEIAL j

                                                                                               -e
                                                                                              ,4 1
                                                                                              !N
                                                                                              ~:
                                                                                               ....      ~

N

                                                                                                          ~               I                                                                                                                        ,r1  2CCOI    AI 2T1 5)(032 2TEW SX032 MO 25)( ~

007-1

                                                                                                                                                                                                                                                                                                                                                          @     2HS SX049                                                                                                                                                                         B I I

I WATER SUPPLY 2SX3CI 1. 2SX4C I L-~~_i~>-----------------~~~:::C~8:::~~~-----------<J2~S~XO~2~BC:=J3@0')_------~..:"'T~-jc....,AJ...--.-,....., 1 _ ~

....- - - -......- - -...-----tDF"'i.r\'::

15X021_ ~~:::: 30"X 24.~'~R::ED:-.--------------------<ill:@C~Q)------- 2SX03A :30 I

                                                                    =~                                                                                                                                          __                                                                                                       ')( (TYP.2 PLACES)                                                                                                                                                                                                      I
                                                               ~S.E..!.L...                                                                                                                                                     COMPONENT COOL INO                                                                        V1 HEAT EXCHANGER                                                                                                                                                                                                                                                                                              I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              -e F 1RE PROTECTI ON                                                                 C';"
                                                                                                                                                                                                                                                                      .....       OSXC6A                4)--                                                               OSX 112    I                     SYSTEM                                                                            ~L:;j I                                                                                                                                                                                                                                                                      * ~ OSX! 88                    1              1o....((]0~5~X~A~4AC:=JI~O~_;-- ~-(J0~F~P~O~1~A=Jl[f0D----..;~~M. ~~ -I                                                                                                  ~                                                   I L.C.

I I I - _ I $X33 I FP06l DRAWING CONTAINS lSI LAYERS I I CONTACT lSI GROUP PRIOR TO REVISING I I A REV DATE DESCRIPTION FOR RECORD-INCORP. OF EC# 360951 PREP. REVR. APPR. AI AW EDSF EDSF EDSF EDSF I DIAGRAM OF ESSENTIAL I I SERVICE WATER I I I SCALE  : NONE I NUCLEAR SAFETY RELATED DATE :01/22/98 M-42 I EQUIPMENT IS SHOWN tD~RA~W~N~BY~:B~H~D~=1=~",,:,=~----::;i:""~~7-b';;71 I ON THIS DRAWING fORGo BY :5040 SHEET NUMBER: 28 SIZE: F M05 I I CRITICAL CONTROL ROOM DRAWING I 8 7 6 5 4 3 L_ --1-- 2 _____ 1 J

I- ------l 8 7 6 5 4 3 2 1 I £ 'lHS Zt-V"J 8NIMV~O ~OO~ lO~lNOJ lVJIII~J I I I I I I I I 1SX250A I I 1SXJ4AA I 15>< C1Cel~ 1SXC7AB 11 I F DIESEL GENERATOR F I 1A JACKET WATER 600# FLANGE UPPER COOLER I ISX Z.OIC IS}C2.01~ I 1DG01 KA-X1 '7 ISXI69A 1SX27EA I '~X2'='MIO 1$')(0 IS" I 1"0 CONTA.INMENT I e>\JI'-OIN~ UNIT-I I IS I':' 16 I I lSX242 sx I XI D. G. LOGIC .. o I

                                                                                                                                              ~

El1 DIESEL GENERATOR 1A JACKET WATER I IHS LOWER COOLER N

                                                                                                                                              )(

1DG01KA-X2 I SXI26 ~ SXO&04 1SXJ5AA ¥4 I 1PMOl J 1SX251A OPM 02J

                                                                                                                                                     ~-_  ..

E 1W~01CA CHILLED WTR. SYS. FC 1SX68BA 1 E: I PRI MARY CONT. L REFRIGERATION I UNIT 1A 1SX77BA 12

                                                                                                                                                  ~~~~
                                                                                                                                                          --r:::~~                                                                                                                                                          M010R DRIVEN AUXILIARY I

FEEDWATER I PUMP I L-'._S_ -rI SXO!S!S 1SX2102 I

                                                                                                                         , SX2'SA HIGH POINT l   OPM02J ESF LOGIC                                                                                                                                                                                               I VENT VALVE                  1SX105A L.r.p.                                                                                                                                                                                                                                   I 1SX057A I

1 o 1SX250B L*O* IS 05 AIO 0 I 1SXJ4AB 1SX07HA 1SXC7D61 ISXC.7 B8 1'/2 CONN. I CAPPED DIESEL GENERATOR 1B JACKET WATER m~4 /':1-=:SX~F==8~8~---:-~ I 600# FLANGE UPPER COOLER I SXl-OI B 1SX214 1SX27EB 1DG01 KB-X1 I ISX 696 1SX26AB10 I TO com BUILDING UNIT-I 1SX04AB20 I lA

                                                                                                                                     ...                                                                                                                                                                                                                                                                I 4(
                                           - - DG LOGIC                                                                              CIO til                                                                                                                                                                                                                                                                I
                                   ~~~E12                  DIESEL GENERATOR                                                          )(

IHS 1B JACKET WATER LOWER COOLER II) I SX127 1DG01KB-X2 c 1SXJ5AB ¥4 C l 1PM01 J I ....FOIAS I

                          ...d3 o                                                   ~            1SX251B                                                                                                                                                                                                                                                  ....UXILIARY FEED WATER                                         I o                                                                                                                                                                                                                                                                                                                            PUMP 18 N
                          )(

OIL. COOL.5R I II) I'C\ IQ I Irr.ovfiffi~~~~ r.1"="s':':'x"="e7:=:&:"':B::-:'"1'" I ~ I

                                                                                                                                                                                                                                                                                                                                                                                )(

I *

                                                                                                                                                                                                                                                                                                                                                      '12   )1.\,1 Reo. M 11\   -

1SX147B IS)( 2.1 ee I ISXB3A 1 1SXC4AB 2 I L*C* I I B L.l.P. 1SX057B B I I I NOTES~ I 140BB I TEMP. CONTROLLER

1. UNLESS OTHERWI SE. INDICATED ALL PIPING DESIGN ON THIS DRAWIN G IS PER PIPING M.37*1 I DESIGN TABLE 105 BB. 1SXE5A3 C5

2. UNLESS OTHERWISE INDICATED ALL PIPING IS SAFETY CATEGORY I, ~UALITY GROUP C. E3 I 'SX05D6'O I I 1SX0158 I

___u_o_'_1.--.c1SX Hie e) I

4. VALVES 1SX057A AND 1SX0578 ARE TO BE LOCKED -IN

                                                                 -POSITION (L.I.P.) FOR SYSTEM FLOW PERFORMANCE.

lID I ~ DRAWING CONTAINS lSI LAYERS I I CONTACT lSI GROUP PRIOR TO REVISING I I A 5. VALVES 1SX173 AND 1SX178 ARE DESIGNED PER PIPING REV DATE DESCRIPTION FOR RECORD-INCORP. OF EC # PREP. 351970 EDSF REVR. EDSF APPR. EDSF AI DESIGN TABLE 00140BB. VALVE ENDS ARE THE PDT BOUNDARIES. Ai. EDSF I DIAGRAM OF ESSENTIAL I I SERVICE WATER I I I SCALE  : NONE I NUCLEAR SAFETY RELATED DATE :01/22/98 M-42 I EQUIPMENT IS SHOWN DRAWN BY:BHD I I B ron ON THIS DRAWING ORG. BY :5040 SHEET NUMBER: 3 SIZE: F M05 I UFSAR FIGURE: 09.02-02 SHT: 06 CRITICAL CONTROL ROOM DRAWING I 8 7 6 5 4 3 L _ ________ 2 1 J

I- 8- -- -- r- -- --7-- - - -- -- -.--- -- -- -- t 'lHS Zt V"J 8NIMV~O ~oo~ lO~lNOJ lVJllI~JI 6 5 4 3 2 1 I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ~

I 11~X..7 J ISX.04CA 10 ) I ,"'-42.-3 >+r,l,i-D~~~----@IS~XQO~~D~~~~------------------------------1~;;;-' I-l~~;' ~~ L----aa~sx~~~S~~~~:~I~~~-~-----------------~~---- I~ I I I

              /FI E5SENTIAL,.l 5fRVICE TRAIN SUPPLY       WA TER
                                     *A ~

Irt1

                                           .1....

N

                                                                         ~
                                                                               ~

I SX 50 AA 2 III L-.

                                                                                                                                                                                                                                                                                                                                                                                                 ~

r I f:c IYi (T"~ (REO. P)

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /~ I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ..--r't.- 0 sx 53 B (

I"- C ~ 3*"~*RE.O 2)..-.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              .                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              (~" rr-"
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                --.- . . .        ~ IS)(..S'3BA.. 2'~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           -)) r-1"-_

J: I.  ;( I A -

• IS" I 9b ~ III ..... _~_ _.-J-o' I~ I~IO 15~ ~ _..-

If} I F (ft I~ ~ !IS)C.Z07"'A I ~"~E.TY INIJEC.TION ?UMP  ; ~~~ r- 3l---.~ ~ ~. ~ ~ ---------------------------_, I == --:;=-llV~O~sA. I sa"RINc:, OIL.. COOLER I"'" /--l1~X: ~C)BOA ~ ~ 0 ~~~ , - './ I I I l I ;W~~~~~J

                                                                                                                                                                   ~""                                   IT~                                          ~

IS)( 2087A L ICvo2.5~ /~ V"

                                                          ~                                                                                                                          ""r                                                                                                                                                                                                                     I, Z I

I r-lfl)(_ ..----io ISX42.AA t.&,. IIl,-.frt£D. (ISXE8AA-' D-Tt (TV~P.)I

                                                                                                                                                                                                                    '-Jt---------;o
                                                                                                                                                                                                            !1"S)C.?91 L--(,SJCE9AA- ,
                                                                                                                                                                                                                                                                                                       ~

ldl

IV~01- S~

x If\ ICII l&.. U.

                                                                                                                                                                                                                                                                                                                                                                                                           ~~

0 I I I I C.&NT~I¥. r_ EAR

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           \.;;1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~ ....R~IN(:,    II'.

c.ooLE.R. PUMP II I I I I I Ii'\.. "'-

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ~COOL.ER 1 I" CUBICLE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ~'SEE        NOTE 6)

I I If1 10 1 I~-l'

                                                          ""1                     f          'S' "cee I 1t:)l.'3ca
                                                                                                                                                      ~~FETY IV" CUBICLE COOLER
                                                                                                                                                                                ....... £..Ilo..
                                                                                                                                                                            ""'--'~r-\

IW\JEC.TION ?U~P IA r-!ISX 207:!A e-\

                                                                                                                                                                                                                                                                                                        'lit x

II> R.H.R.PUMP (.UB\CLE COOLER I~ V ~........ 0\0' 1Y1""

~

II if;~ ; ~." I"~ED Sl< I '37'" I 115 X 209 P II."

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    "'ON ~ ~ ~

I I r-I-l\)<f\ Q .... N (I sx c.2.AC I'I 1-

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ~;-~ - -

1 '1

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 =;: - _

I I I _ '""'\ ~ I _1,s,ur{P\/3}: T~ -----'ri.-o--------_, D ~~ kS-l:s:J-----<J-{P'SJD---o-- @t:11'X s-::::ft-----~;.;;,:;;-4.--*~--b:l::1(- - . . ~ ~ -~ ""'. . --J ~ 7-l I "-----io 'S><U-j I

                            ~

I ME_-4"8 *.' ~ (1l lJ1 IIC;C l'- [K "ISJ(58&A!'2J 2"KIYi. ICVO~~ c.&NTR'f:.(..H"R.(;INc;,PU~P I~ IF1~/

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ~xl041 ~

2x~RE

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ~~ (;                   ~~

(J\ 0\

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        '       o;~~- ~TID)

I~ 2 08A ~ II""S)(. I IOSX-2.I&;;J e Ell e." )( l1'l LUBE OIL. C.COLt.R (~~ ~ '" ';" - Q5)('55AA}'Z~

                                                                                                                                                                          ~

HICaH POINT ~. O:>>)(3(,"!:.~ * ~ ~ 1SX58AA 2 15)(.OSIl-..ta... "2..) - I 15)( 20'2 AJ LQa.'

                                                                                                                                                                                                                                                                                                                                                                                                                                                      ."J ~5)(04~~O~:~~l-~:P.'~

VENT VALve O'T't OTX O'TI:~ v 0&1 0& 5Y-06 ~XO&,¥ 05XO~9A I Ell I '\. ~ Ell L<l

E oJ O~"'~ @FEEII °06" H=)(~-'

                                                                                                                                                                                                                                                                                              ""S-:::X                                   r-                           '~ ~                                1       ~7                                                                                                                                                          7 O':""':is::-:x. (D::-S=-=-""-:-;":W1   J J                   '\...@~~5CA \£                                              ;                 ~'                        ':~                      -~.fQ-'1                               ~

I

                                                                                                                                                                                                                                                                                                                                                                            ~                                                                                      \ . l.f:{ESL3J-                                            -          ~~                                      _                                                                                                          ~~                                                                                      ~~ ~~

I

                                                                                                                                                                                                       ~1)oL--.. b t-
                                                                                                                                                                                                                                    ~J                     SX084 L....~---II~!t.-8-X-'-R-ErlD."l...i~/-;l~
                                                                                                                                                                                                                                                                                                                                          ~

2 co I~ ~ II' ... ..-III~IIIIIIII!~~P-fP--.--.o f"""" I~

                                                                                                                                                                                                                                                                                                                                                                                                                                               ,rfi !X J

SXF4A. 2J LJ..5X17 II. I!I L...

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ~ 21~IA 0

r:- '~I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          );lS)(F I

15X05BA3~ ..... - - ~ lfi r~~ N

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        \ISX203CI                           7 I

a.-----f~L(}I-------......--... ,. .

                                                                                                                                                                                                                                                               /1                 1~;t.q~r;:1                                     I   r-~

1- -

                                                                                                                                                                                                                                                                                                                                                                                                             ~ i~                         I        (I L'~)(20I4A 1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ~lrLJ~*

I lid J\ El( 5A Z)

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~

1M USX55 CA', I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~            l'sx 208c,r----l/IFl
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         }

rr-1SX2200A IISXI'2..4A til

                                                                                                                                                                                                            ~~x~L-.                 ~                                                                                                      ~                                                                                                                                        15>-1"7 JI'LC-~;!                                                                                    ~               ~

I NOTE 3 I ow,a IC~ (10&'--:;'-"'-" 7 tOl x l{))-

                                                                                                                                                                                                                                                                                                                          )(1 on)(~                            _I G

1SXK1AA 1Y2} '@ ":::. I.,... 0:==1 L.- - - - - _ -"";1 11"::><:' "'8 r - I Fe l!l

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  )(                                                              -til)                                    SX093 I

I I CONTf;?OL~OOM \.. --."'.. ""....~' RE:f:Rlr£~'"T'ION u~rr O~ CON CE.NSER

                                                                                                                                                                                                                                                               "(

1\

                                                                                                                                                                                                                                                                              '" .,~i 4                        :'d~ dj'4/\ ~

A1 ro

                                                                                                                                                                                                                                                                                                                                                              ~

4 <! r-

                                                                                                                                                                                                                                                                                                                                                                                                                               ~

X

                                                                                                                                                                                                                                                                                                                                                                                                                                                           \ \ -~ 1 I~                                                                        1'":>X3E.,_                                                   X,                                                                                    '~III                                                            x
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   -             - j tS.(09IA              I I

I

                                                                                                                                                                                                                               ~

1/,:)':-)(~5~)( r- )( UI I 05XI86 A 11\:; ~ l-T ~~x5\l risx66j --rrs-X-bO I I

                                                                                                                                                                                                                                                               ~l B                            os)(. 3'Z.B"-/4l ~                          ~                   -

I I EC.SENTI.II.L "ERYIeE

           ;J        11'\     oJ OSX89CA~4

_ _;,.....;;;.:..;:~""P~. OPL JA MiCaH rosx 'ZII~C liOiMT \lENT IIALVE

                                                                                                                                                                                                                                                                                                                                           ~L!l         ~
                                                                                                                                                                                                                                                                                                                                                                                  -;..4
                                                                                                                                                                                                                                                                                                                                                                                  .. ~                                         II~)(         zoe A             t--                      '" .. ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     \V",.oe.                                                                                                                                                                                                                                                                        ~---1r            ISXCIA            ~)

I I WATER. ~ETlJRN IOSXI8~ C .-= 10 POSI,.\ 'IE. D\~P~c.Ii.MaNT O"~GINGt 1 o TRA.I~ A ....'TI~IS:-;:X;-::~...b,..,I";';IS~)(;;-::3i":l'~I-* UP iv'1

                                                                                                                                                                                                                                                                                                                                                                                  ~I                                                                                          PUNt P C.u e.IC.L.£ C.OOl-alil.                                                                                                                                                                 I  lOS X 3~e; 0

I M - """ 01 A'2....~L-~"'~...----------e[E£§~~§).-----_-------------------~O;;s;;x;;O;;;6~;;A=:::...jt;:...D~~~-~~:;...;-;it.-~.=.;*1~

                                   "l                                                                        15"'050" 10
                                                                                                                                                                                                                                                                                                                                                -                                                                                                      @~~~~)------------

rl~XOSc.A.Co +-.I I I -litE:. )(,15; IS x l!E> 1-- 1:iX.04 C. 610) 'SIO IS6 I cs.~FE.T'r IN"'E.t:.,-, ON

              >M~~ ~ ~>r------~IS~~~~~~D~e[~h~--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=~~-~~~;~,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        II~wnB~                                            ~~N&OI~~O~\a                                                                                                             ~'~~OEJ
                                                         ./                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   PUMP I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               I I      ESSENTIAL SERVlCf WATER SuPPLY I

I---

                                                                                                            '5X 50A5               2.:;..-----                                                                                                                                                                                                                                              ~'                     I S)\.~6...-
                                                                                                                                                                                                                                                                                                                                                                                                                                 ~

r--<(j1~5ix.4432.:"j"UBiilJ2.'V;'1J~---t~

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~            l..--1l, L/'\.r . ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ~r:.-=-S-~4":"':3=-A-:-::B~/lI...~~--------\or--------"'1 IIi Il;,x I REO ,--                                       _

I lr-I S=-)l,,-;S=-:6~: l ~16 X E 9A B..v If) I TR A IN "8* ,r:::..... l\SX3al_ L.::J 1 I .r""l..- I I I

                                                                 \P                                                                                                                                                                           E 12
                                                                                                                                                                                                                                                                                                                                                                          ~               '                  ~-----------(!I~S~X3I1A~

r .. B!L~'Z.>----...L-------..:I;;;\~~~-====:1ill~i:1l~~-~~;,.....~~ _-:-- ~ Ilsxs~~ _ ..I1sx31BA ,y~ I I

                                                                 ~

(J} SI:O~4 L--@)c'E.eA~) (1~)(3iBB 11/2)--~ r-CO

                                                                 )(

II5X20~&r,J -: '~20&DI ~ l,s'2'G'" I_.. ~_~ rr~ 1'S)(Z,""A I If) IIf! I~ l'=)(~:,~'e. h ~PRAY PUMP I B

                                                                                                                                                      ~.II..

IVA 0'3'56- CON .,...N ME-N T r.1-~sx::-:::~:-=o:TI--- l!)Ul 0 N 0 N 10 fi",.,)( L:. -Z°87e L...-.. I............. U.. ';f. ~~~ r--I-- NC\

                                                                                                                                                                                                                                                                                                                                                                                                                    ~ l\J I\J                         I                                                                                                                                                                                                                                           I                                                                                ~ &.

C.AFI:::*" IN~E.CTtON Y r- ~ ~ 10 )( lIC III J)( Q ' , ICVO'Z.$B IS> c 4 )/

                                                                       ~ ~3BB . .)rdt--_'9I~[PS::dl1I~Lc~I~::;.=)(.=2=-~-:-:~=fio~ ~

C.uBIUe. C.OCLER -- )( 4U) ~ \1))( IV~~&e 7

                                                                                                                                                                                                                                                                                                                                                                                       ~I                          :z
                                                                                                                                                                                                                                                                                                                                                                                                                        ;~

I

1 Cl::.NTcoIF. "u"'Rr-I~6 PUMP

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ~ G~"RCOOLER                                                                                                                                                                                             I I,

b:il : ~~~ PULA"'" IB CI

                                                                                  """                                       :                                     q". xc." '"B                 z}-1                              2. .,                                                                                                                   a"                                                                                                                                                                                                                                                                                                                                                                ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ~c;"~ ""W -::-r-Ibl.R. PU lOP I                                                                                  en '"                                                                                                                                                                                                                                                                      I                0          1..,          IL I';))(cqa B                                       c.ua\cl.~ c.ooL.E~/                                                                            .....                        I                                                                                                                                           .                                                                                                                  . . . .... ~..           '-~            _.... _J                                                          I

(!5)(C.e.~AD ~J-oh ~5X.'91B~ ~ l'o

ISX209B I I

                                                                                                             ~ ~                               I~                                                                                                                                                                                                                                                                                                                                                                                                                                                              ~

C\lC'I II" IS)(2IG.::lB

                                                                                             "     .II
                                                                                                                                                                                  ""7,                                              '11/                                                                                                                                                                                 ~'          I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ~i1\' RE~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ~20~                                                               1'I2'lIREo.

l1. ~ h If\

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ~      rtl                                                  I
                                                                                                ~. . . + \                 ~, _                                                                                                                                                                                                                                                                                          -~                                                                                                              ~_O_----4.L---.:.---------_____                                                                                                                                                                      ~                   ~""L~-iIS.)('2'G4A 1....-_ _L-3-txcREO.                                I                                                                                                      ...ljr...----.                                                                                                                      '"                                                                                                                                                                                                                                                                                                                        I                         11 1                               3)clJEO                            'I'                                             6'X3REO.                                                                         I   I                                                                          I       I   --{9                               L-./'..                   r-                                                                                                                                                                 .                                                                                               I                           I (I~x5~eD                                                                                                1IS}(.~,3'3~ I                                @~EE't                                                                                                                                                                                                                                  \S~5e~BI~                                                                                    ~IFI                                                                                  {ISll59ABI~                                                                       ~

_-J 0

                                                                                                                                                                                                                                                                                                                                                                                    &.3':-r1                                                     11-:                                                                                                                                                                                                                                          '.t\                                                                      ...

I

                                                                                            'Z.}--J I SX'2~'5ZD           r
                                                                                                                \

L..=,.;.-----'I~I;;:_S_::;_)C.;_;;15rl L: ....

                                                                                                                                                                       ~SXS4~B 3 IS)(,3cl s~                        I~~118-1
                                                                                                                                                                                                                                                                                          '\--
                                                                                                                                                                                                                                                                                          /              I
                                                                                                                                                                                                                                                                                                                                                                          =~         RED.
                                                                                                                                                                                                                                                                                                                                                                                    ~,llI1 r-       t\

f---( 1SX58AB

                                                                                                                                                                                                                                                                                                                                                                                                                                                                     \, 2.. 11I~2"RE.D.

2) ICY03S 5

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ""/

CE.NT~I~. CJ1~R~'NG7 PLlMP IB sluosl L~ EI'lL"

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ~---...r-     ,L
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             'lJlWZI?ED         ~138e I-.~ r - f -

I I ~rn ~ ~

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ~ ISX~8B~~                                                  I I

I EI1. '11. a ~ &.11. E.12, 0~)('~b581/2J I' ~ r:!:..lSXK1AB 1Y2) LUBE OIL. COO~ER 15XOSAC oz.) I.r.v~ ~ ~ ~

                                                                                                                             ~\~'I..~) .".~W                                                  ~            5~ ~                                            05XOb~~ I                                                                                                               ~i                        ~                            .=:~ ~~~C                                                                                                                                                                                                           lI5X'5~882)-.."..,~~~                                                                J~
                                                                                                                                                                                                                                                                                                                                                                                     >(                      .,

11 ISX I

• 5X.* on S)(.O SXQell ~ OHO EI2

                                                                                                                                                                                                                                                                                                                                                                             ...                             0                                                        IID
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ~X?161 C ~                                   rlSX202B                       (           ~ \r1                      202[j                                       /     .... ,_ _ .-                                                                                                                     I I                                                                                             (O';)'X~~!6.~ ?~8                                                                                                           OPLu                               OFf EI2                            ~064E                                                                       ~                                 ~                                                                     'S~O~FC              2J               p::p~_J                  d      \      @j<~S8Ayi)-l                                     2       \..(--IS=-X"'7C#::-S=D-:-A-r.Yi~~                                                                                                                                                                     I 1                                                                                    {ESLDZ~

I IO~~Ob~8~~ J -I

                                                                                                                                    ~

(~~~D 1 h SX089 I'~~ 20eee ~ ~

                                                                                                                                                                                                                                                                                                                                                                                                         ~~~~J1"":b~~O-'4 3'x_i'REo.      j          ~EO.

Z,1!&;,('t?J. ftED. Xl.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ~                ~)('Z: RE.O
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ;7'-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            )(
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ..........=       (IS)(3888'

B I I L/ ' I 0 I .. R'liI. B (O~1~~~JI6.)" ~ exwRED'-~ ~ 11SX2199B ~ L~)(20/4CP I ('\.t I L.--.-~---i-I~L<:O

                                                -                                --                                            .. I
                                                                                                                               .........              ili                                       r- ~        ~"1.1...-_~--:---~-tttll-~--;'::::;dlA~11                             _                  F.~O.8~'t'l*RED.
                                                                                                                                                                                                                                                                                                          ~::                                    ~1(I~          N~                                           1SX2200B                                                        cllSXIS     CENTR\~.       IVA.O~5e C.t\t:\R<:,IN(, Put'?                      IE'                                                                                    \15XI'Z.4 B                                  ~ID                                                              I~

1.11 I I Jl5166 1 ./ 1~"2J"" ~ '" ~ c..UBIC.L.E. C.OOLE.f2- ,~£E.I'2.. ~ <1> I l 0SX063B CONTROL oW0 0 1C ROOMB (O~X3"6" ..(1 ~Cpl.'l/ L-.~_l * ~~_ ~corf)  ;:onl(lJ_:~ 0 ~ N ~iO ~15)l,~I~SB r: IJS~2IaABh rISXC3'5/Y~ SXI05 I~ 0 ~ f'() I 105BB 140BB 105BB REF~~~ATION CfI ~ ~ .~ ~ ~X54 I V' II~IS)l.~ - - I OSl<.~0{'5E!l1 IIIx - I~ ~ I'Ij 2/84~ I ~1 I OB CONDENSER 1 11" rlS I _ I ro 5 )( 186 B ~ I I'll' Id\ III

                                                                                                                                                                                                                                                                                                                                                                                                                                       .::;.. ~

0 I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                'II                                      1 I X       2~
                                                                                                                                                                                                                                                         ~~ B                               {OS'X.'!t.a8~1° ~_?                                                                                                                                                   1IS)l.S4J 1[ESLJ]1~
                                                                                                                                                                                                                               ~

I I...... 1- IS)<

                                                                                                                                                                                                                                                                                                                                                                                                     "r'                                    ........-                                                                                                                                                                                                                                                                                                                 j
                                                                                                                                                                                                                                                        ~~pxOC089FII                                                                     ~.                                                                                                      ~~ I                                                                                 0""'"-........... I....(ISX~b"&                                             ~_IS)c'531 I

I OSX890A3/4- I ... ~'l P-f"1 2. ~ OSXI86D I ~ ....- ~ 1112REO r k~-j 115)(.52.\ .e:'*)(IYiR~t>. I I I -11SX3011SX301 (OSX898A OPL 3J6 ~~~~~L:","l-:P~i ~ ""1=$=X~=7::"1~ ISX_lC05A ~p~~7tUa..~IT L...{'5XC~AA~ ~ J"i'S)(.2073B I I Lrc,,'IofrV_1.1 ~~ (1~)l.95BAI~}-J PUMP' "CUk.\.Q COOL~ ~ ..i l~---Iof-- "'" I M-."*'lIl. A3 .., ~ . .i.LH1 -<nOO~~~)----_-----------------------..:;III""l:;~..7'II'f.;;;;l;-,~;,;.~)_..J~ ISX.O!>0810 '\ --

                                                                                                                                                                                                                                                                                                                                                                                                                                                    .(!I~t~v~QJ&.~*~,.§.lL~--------------------

__......~ ...II '~xS'i!.1 DRAWING CONTAINS lSI LAYERS I I ESSENTIAL 5ERVIc..E ** I 050X 21&0 r.-"' 16't POlWT VEWT "Al.".:-l CONTACT lSI GROUP PRIOR TO REVISING A I WATER RETURN TRAIN B NOTES REV DATE DESCRIPTION PREP. REVR. APPR. I I A 1 UNLESS OTHERWISE INDICATED ALL PIPING IS AN EDSF FOR RECORD-INCORP. OF EC #359610 EDSF EDSF EDSF I I I > 5. VALVE 1SX2201A IS DESIGNED PER PIPING DESIGN TABLE 140BB.

                                                                                                                                                                                                                                                                                                                                -- - -  --           ~          --                      ~)

SAFETY CATEGORY I GROUP C AND PER PIPING DESIGN TABLE 105BB 2 REFER TO PACIFIC PUMP DWG II CW-49770 IN CENTRIFUGAL CHARGING DIAGRAM OF ESSENTIAL SERVICE WATER I l VALVE ENDS ARE THE PDT BOUNDARIES. ~ PUMP INSTRUCTION MANUAL FOR COOLING WATER PIPING LAYOUT __ __ __ I I

6. PIPING DISCONNECT EVALUATED IN EC 359610. I 3 VALVE TO BE LOCKED IN THE FULL OPEN POSITION-FOR MANUAL SCALE  : NONE I OPERATION ONLY ALL ELECTRICAL CONNECTIONS TO BE REMOVED Exelon NUCLEAR SAFETY RELATED DATE :01/22/98 M-42 I I

                                                                                                                                                                                                                                                                                                                                  -- -                                     -                                  4 VALVES OSX066A AND OSX0668 ARE LOCKED -IN- POSITION (LI P)

FOR SYSTEM PERFORMANCE Bvron Station N6UC~~t: SM 1 EQUIPMENT IS SHOWN ON THIS DRAWING DRAWN BY:BHD ORG. BY :S040 SHEET NUMBER: 4 SIZE: F M051 I I CRITICAL CONTROL ROOM DRAWING I 7 L _ 8 6

                                                                                                                                                                                                                                                                                - -          1---

5 4

                                                                                                                                                                                                                                                                                                                                                                                                                                                                           -      -        -       -      -       -I-         -     -         - -

3 ___1_ __ __ 2 l- 1 J

I- 8- -- -- r- -- --7-- -- -----.------ --

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ------l 8NIMV~O ~oo~ lO~lNOJ lVJI1I~Jl 6                                                                                                       5                                                                                             4                                                           3                                                                                                                   2                                                                           1 I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         ~NHVALVE I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   I flJ VENT                                              EI2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         )                                                              lHS I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   I 1SX220D          I I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      SXI08                                                                        I
                                                                                                                                                                                                                                                                                        .....                                                                                                                                                   ISX06B8                      16                                                                                                                           11 PM06J             ESF 1                  ( LOGI C I
                           /:             ~            ISX022D            I                                                                                                                                                                                                                 rC'" ~  I                I SXOl8D                                                                                                                                                                       (1 SXH3AB                        4)          .-.                                                      MO I

r-lf~ \~/ o~~M I ISX I I F J- A\ 016B-2 F I I

                        ~

o<{

                                          '0"
                                          ~r a
                                                          'V                                                ~                                    ISX09\-                                                                                                                                      a o
                                                                                                                                                                                                                                                                                                          ;1, W a                                                               ~                                               ISXO<$I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ~I 1SX07             ISXI5 I

z ~ z I IX) o x

                                    ..-.(ISX08CR                           4  ~ 1SXD7~I~s:L/_OOJ} 1-(r.I--::S-:;XD;::-;9::-:A:;;;R:----:;3"""-~~-L---J7:1S::-::X::::0~9A:-;R-:-----:4:""'\~                                                                                                   ~      ~ISX06GR                          4   ~~ I SXD~I~S/J}I~~I~S~XD~5~A~R_ _:::'3'J~---.J..r-~1:=..:.SY.~.0~7~A~R_~4~                                                                                                                                                        I RC  r'.../  ORC                                                                                     I I                         (/)

I I

                                                                                                            ~                                     Isx091 l                                                                                                                          ~                                                 ISX09'-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ~'t--. ._P_-_7"'-+"""-+--l~QI~SX;XO~6~A~B=_=cDJ.i.§.6J------lIII(e~-<:

M-164 3 I I I

                                                                               ~ I SXD7~I~S~ ~GJ~S:g:XD;9~A~M'~==::;38.....                                              ~~:~--=--<=,~SX;0~9;A;M===~4).-.::~                                                                                                                           4~JSXD3~1~E/S/1r~

W I""l

                                    ---(ISX08CM                             4                                                                                                                                                             ...                                                         --(ISX06GM                                                                                                                 ISXD5AM        3                '--1_SX_0'-7c..:..:          AM    -'------'4J :>--                                                                                       X

(/) I I I I 0 ~..... CD I

                                    ~ISX08BO                            10)                                                                                                            (~I.=. ;SXc..:. .:-O:. .: "9..=.B"-.O_..:...10=.-/)--..,                                                       ~ISX06EO                       10 )                                                                                                                      (,       SX07BD
                                                                                                                                                                                                                                                                                                                                                                                                                                                               --.:....:::..:~=--~=..;,/
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              -                                                                  <{

I'-- I ~ Isx091" I.L X I (/)

                                                                                                                                                                                                                                                                                                                                           -e- I sX03AFt3)l1~S/1rl~~I~S~XO~5~A~H_-:::'3J~---.J.r-~1S~X~0:..'..7~AH~_4::!..):>--

h-, I I

                                    ~ISX08CH                                                                                                                                                                                                                                                          --(lSX06GH                       4 ro u

Ul

E o x

(/)

                                                                                                                                                                                                                                                                                                                                                                          ~                                                Isx091                                                                                                                                                                                    S-X2-0-6L]                                                E:

I 4 ....-f_......r,-r-s-xo-~I~/J}I~G,~S1X~D~5~A~D=-==~3G... *-;:.J-i~--<l,~SX;0~7lA~D===;)4 ~ TEST CONN. I I I t '7 ,

                                                                                                                                                                                                                                                                                                                                                                          ~JL7                                                                                                                                                       ~

ISX7IAD

                                                                                                             ~                                                                                                                                      ~

l SX75AD 314 ) 3;4 I 1 SX07 I SX09 I .. I SX07 I SX09 T"" I J~~ ~JL ISXI07D I

                                                                                                                                                                                                                                                                                                      ~r.I'"::"S7:'"XO:-:6::7:H::::O---:-4"\.......
                                                                                                                                                                                                                                                                                                                                                ----l::I'".-~*~r.I-::S:7.XO:-4AO            LL~/lrI~GI~S;X~D6~A~D===~3D...                         ~.;:::J--(:;.-r:1-=SX:-:-:0:-::7:-:J-=-O-~4) I                                                                                                                                                                                                                                                                 ISXIIID                                                                                                                                                                                                                                                                                                                                                                                                           I
                                     *   ...-(r.,:-:::S:::X-:-:OB:-::D::::D----:4'-----:-r-=--..~r.,~S-:;XD:::-:8AD     3   LJ""'/lrI~r.i~S:::X-;::-E:-1A:-;:D:----=3:---.....       ~ ..r:,'"::"S7:'"X0:::':9~O::::O----:4"""-..--
                                                                                                                                                                         -----:""1...__                                                     ..._.            ~               J                                                                               ...                       3 B
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ~

I I I I ~I SX74AD 3;4) ~ J IT1 I ESSENTIAL SERVICE I I B~~ISXiIOD LJ

                                         ~- ,

I ESSENT I AL SERV ICE WATER COiLS 1VPOI AD I 0 L I.P L..~.rF*

                                                                                                                                                                                                                                                      "T
                                                                                                                                                                                                                                                      ~~
                                                                                                                                                                                                                                                      ~
                                                                                                                                                                                                                                                             ~
                                                                                                                                                                                                                                                                   ~ I I SX I 06D V 1.($                   W   8 t-l WATER COILS I VPO 1AD I 0 EI2     r - ( I SX91 DB      ~? )

LI P

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ~~~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     '0"       LC i

SXI19 ITEW EI2 I I

                                                                                                                                                                                                                                                                   ~

_.A ** ' "  ; I SXI19 I I 1--/"""" ,/__ . I ISX021D ~~- - I SX025D L:.J

                                                                                                                                                                                                                                                                                                      ~ISX70AD                       4 I P I r & Y L - I l SX91 DA                ~....                                                                             I                                                                                Ef2 I                                                                                                                                                                                                                                                                                                                                                                                                              SX 120               '\   \                       @_,O_7_C.:-D_ _                                  , O~}--,_                                    --;=========,                                       -----.                                                           I s:~:91
                                                                                                                                                                                                                                   ' O:../~

l - -_ _ C,--'....;;..S,-X0,--,=9,-C,-O_ _ I 1SX262A l EI2 L.f I SX21 OD 1 1l1li 1SX258A I NOTE 2 I D E/2 ISX92MA Ef2 ISX92DA EI2 I D I IFE IFI IFE o IFI T 1PM06J I o SXI25 SXl21 SXI21 MO SXI25 I SX92HA I ISX92RA ~ Y2 ISX I I I _I 1SX253D I 1SX262B l NOTE 2

                                                                                                                                                                                                                                                 .L;;!~~~~.J.~~~-'--------------------------(:JI~S:KXOQ:7liEi8~:J1~4l)J-.(CJ::J~.(~:JI~SX!XO~7rrF~B=J:ti6)_-.L~~~~
                                                                                                                                                                                                                                                                                                                                                                                                                                                    ~

(1 SXH4AB 4)-. 1SX263D I 1SX258B I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       -I I SX09           I SXI2 -

0278-2 I B1C

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   @ 1RX PR003 I

I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ~                         "J~

r<J HIGH POINT I ..... ISX06EB 10 VENT VALVE I I

                                       ,       ~ ISX022B I                                                                                                                                                                                                                                                  ~ 15X'0188 IRC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   -                                                        "'-f    1 sX220Bl                      I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ~

I I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        -1ik fr\
                                                                                                                                                                                                                                                                                                  --i:-r ~

p i "- M-42-3 I - -.....- -.9_...... I SX07GB I6 I

                                  !"{LQ                                                                                                                                                                                                                                                                   .l                                                                                                                                                                                                                                                                                                                                                   7    B5
                                                          \0/                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      M-164
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            ~

I I~ <{:I ~ , _ _ ~ t~'SX1B9B o  :

              <{          ~             .....(1SXDBCP v _ _-...

4 o-t-- 1SXD7~I~Ls:L/_OOJ} ~81~S~XD~9~A~P===~3)..... I SX09 I

J--i~=-(~1S~X;0;9A~P===~4:;~

o

                                                                                                                                                                                                                                                                                                                                                                           ~
                                                                                                                                                                                                                                                                                                        ~r:I-=S:7XO::-:6=-=G-;:P--47"~'-.J"---I 5xo3~I~s:L/_OOJ} ~GI~S~XD~5~A~P===~3D...

Isx091

                                                                                                                                                                                                                                                                                                                                                                                                                                                    -~J-"}---<,"II;SX;0~7;A[P= ==4;)'"

1 (lSXG6e 314 )---... I I I u ro

             -a>

c x (/)

                                                                                                                                                                                                                                                                                                                                                                           ~                                                  ISX09r-'                                                                                            L'
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   <{

Ul u.. x Vl c l I

                                                                                                                                                                                                                                                                                                                                           ~"I SXD3~I~s:L/_OOJ} ~:II~S~XD[5~A;K===~3)..,.~::::::::J--}=;;;;=(IIS~X~0~7;AKg:===4;J"'9----'--*

11SX231B 101

                                       ~ISX08CK                                                                                                                                                                                                                                                         ----(ISX06GK                     4                                                                                                                                                                                                                                                                                                                  ~                      I co ro                        I o
                                       ~'SX08BB                             10)                                                                                                            ('-.:.I-=-S~X0:....;:9.::.8B=---:....:1     O,-,r--                                                          ~ISX06FB                       10                                                                                                                                1 SX07BB

('-'---"-..:...:....;..~--'--'/ ..... I 0 l---. - I SX207B I ~I I

                                                                                                               ~                                   ISx091-                                                                                                                                                                                                                                                                                                                                                                                                                                 TEST CONN.                                         ro
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ~

o I u 4~ I sxo7~\~s:L/_OOJ}l~~I.:::.S~X~D9~A~:f----::::3~~~-....r-"""'\...!.I.::!..S~XO=.:.9~A~F-~4~ 0:. o EI2 ~ISX08CF ,--'...;;..SX,-0::....;.7..:...:.A;.....F_ _4:-.-"-' CL IRE-PR003

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ?---)-4M-~~-I4)

I N I X IPI (/) SXI14 I

                                                                                                               ~                                    !SX091~                                                                                                                                                                                                                 ~                                                 Isxo91 RADIATION I
                                                                                                                                                                                                                                                                                                         -c I SX06GS::....-_4'-"~ I SXD3AB3JII~~I~~I.=.S~XD~5~A~B~-:::.3~...........                                                                 ---.l..r-~1S~X~0~7~AB~---:4~,,--,----.

MONITORING I

                                        .....( I SXD.C.                       4 ~ 1SXD7~1~ E / S / 1 ~IHr.I--::S-:;X;::-:D9~A:-;;B~--::3:""'\)-(J-\~~'1....                              ..../7,::-SX;-;:0;:-;:9~A:::-B----:-'\4~                                                                                                                                                                                                                                                                                                                                                                                                                             SYSTEM               I I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   I
                                                                                                                                                                                                                                                       ~}                           ~4)

I I I B @ di, EW

                      ,3
                               '12t 7
                                        ....-( 1SXD.D.
                                                                                                               ~

4 o-t-- I SXD~I~S/1~II-(iSxEI:~I.::!..S~XE~I...::.A~B-=--=--=-~3-:r

                                                                                                                                                 ~
                                                                                                                                                                              ~-...r-~1S~X~0~90~8~_4~)_._..
                                                                                                                                                                          . ..............                                                                    w--

SX75Alt ISXII18 J I 4 ...-c.... I SX04AB ~ I SX07 3 n ~ I SX09 I lJ/~/lrI~'-!I.:::.S~X~D6~A~B~-----::3~""""-~.r--~1~S~XO~7~J~B_--:4~""',,--,_--, L L__

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      ~[q) I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ~x I SXD2AB I 07B 3;4 1                                                                                                        B I I

I I . *....-fl SX74AB 3;4)

                                                                                                                                                                                                                                                         '0"
                                                                                                                                                                                                                                                              ~
                                                                                                                                                                                                                                                              ~C:.J
                                                                                                                                                                                                                                                                   .......                                 ~r-IS-X-70-AB-=-3;--"'4)                                                        ESSENT I AL SERV ICE                                                                                                                         "T                       J                                                                                                                 I
                                        \'~ J L 5~                                    B~~ ISXI06S                                                                                                                                                                                                                              ~~

I I B L.C*/~V ISXIIOB I ESSENTIAL WATER COILS SERVICE LI P Z ~ ~ WATER COILS I VPOI AS 'B L.r P ~ ~ I I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ~"                              ~

B LJ I VPO I AB I B - _. ' " I I Tl I ISX025B ~ ~ I ISX021B I SX! 13 I (I SX09CB I °"~.... 1SX260A I NOTE 2 (I SX07CB 10}---.....

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       "...          ~             JSX7\

CAPPED AS ~) I

                                                                                                                                                                                                          ~

I 12 ISX92KA  ;,'7 ~12 _ I SX92GA ~2 I I Sx 23 l FI E .. 0 d fh l Sx F1E15 0 I I SX92PA Y? E 12 \ ' ; I SX92CA Y2 I .... ....I.;iiiiii1~S:;;.X~2ii5~3~B~l~:"{

                                                                                                                                                                                                                                                                                ..=1iiiS~X~2=6iii0~B::I:---------------------------                                                                                                                                                                                      ~~'_::_=_=___"                      \L.j 1SX256A I                   NOTE 2           DRAWING CONTAINS lSI LAYERS                                         I I                                                                                                                                                                                                                                                                           ~                                                                                                                                                                                                                                             I 1SX263B                                   1SX256B                                   CONTACT lSI GROUP PRIOR TO REVISING                                 I I A                                                                                                                                                                                                                                                        NOTES                                                                                                                                              NOTES                                                                                           REV      DATE                             DESCRIPTION                     PREP. REVR. APPR.                                                                   AI r----.-----------------------------+--,------------------------------IAE                                                                                                                                                                                                                                                                                EDSF         FOR RECORD-INCORP. OF EC #359990                     EDSF   EDSF     EDSF                 DIAGRAM OF ESSENTIAL I                                                                                                                                                              NO.                                                                                                NOTES                                                                             NO.                                                            NOTES                                                                                                                                                                                                                                                            I SERVICE WATER

1. BUTIERFLY VALVES 21A, B, C, & D AND 25A, B, C, & D SHALL HAVE LOCKING 4. RADIOGRAPH WELDS IN CLASS "c" PIPING IN ACCORDANCE WITH "ASME" SECTION t - - - 1 f - - - - - + - - - - - - - - - - - + - + - - - - - l - - I I DEVICES FOR THE MANUAL OPERATORS, SO THAT THE VALVES CAN BE LOCKED IN III REQUIREMENTS. PERFORM MAGNETIC PARTICLE EXAMINATION ON "RCFC" COIL--

(PRIMARY CONTAINMENT VENT SYSTEM) I ANY POSITION FROM 0 TO 100% OPEN. NOZZLE JOINT AT WATER BOX HEADER, AND RADIOGRAPHIC EXAMINATION OF THE t - - - 1 f - - - - - + - - - - - - - - - - - + - + - - - - - l - - I I WELD AT THE FLANGE CONNECTION TO THE NOllLE. I

2. ISOLATION VALVES SUPPLIED WITH INSTRUMENT.

(REF. SER SUPPLEMENT 1 PARAGRAPH 3.2.2) SCALE  : NONE I 3. UNLESS OTHERWISE INDICATED, ALL PIPING IS SAFETY CATEGORY - r. QUALITY ExelonSM NUCLEAR SAFETY RELATED DATE :03/05/97 M-42 I GROUP C, AND PER PIPING DESIGN TABLE 105 BB. 5. VALVES ABOVE NOTED LIP ARE LOCKED-IN-POSITION FOR SYSTEM FLOW EQUIPMENT IS SHOWN DRAWN BY:BHD Nuclear I PERFORMANCE. Byron Station 6 Unit: 1 ON THIS DRAWING ORG. BY :5040 SHEET NUMBER: 5A ISIlE: F M051 1 I CRITICAL CONTROL ROOM DRAWING I 8 7 6 5 4 3 L _ - - - - - I--- - - - - - - - - - - - - - - - - - - 1---- - - - -I- - - - - _ _ _1 2 l- 1 J

I- -- -- - -- -- r- -- --7-- - - - - -- -- -- -----~----- -- -- -- -- --

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ------l 8g 'lHS Zt-V"J                       18NIMV~O           ~oo~ lO~lNOJ lVJIII~J 6                                                                   5                                                                                     4                                                                           3                                                            2                                                                                                                     1 I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        I I                                                                               ,.....---....,EII                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        I IHS
                                                                                                                                                                           ....-{1SXH3AA I

ESF LOGIC t-----.. sxr06 I PM06J ISX220C ISX06BA 16 -... I I I I SXO I 8C ~ ~,.-- __ -=-- ___ I ISX022C ~ , I MO

                                                                                                                                                                                                                                                                                                                                                              ~

A\ ~~ J-- ISX . . ; """'--{ I SX06DC 10) I I 016A-' I I F ISXI1 'SX06 I

                                                                                                                                                                                                                                                                   ~  ISX081                     ISX06   I
                                                                                                                                                                                                                                                                                                                                                                 ~.

w

                                                                                                                                                                                                                                                                                                                                                                       ~

oz L.O.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                              ~                                              Isxo61 V:b 1+ ~                                      U                                 F I I

I '-'SX01AQ 4~ ISXDSAQ :3 1~"3rl~ISX0:3AQ :3 ~ I SX06GQ 4)-- """ISX09AQ 4 ~ I SXD9A~I~I;:Z1r Kr;-;.,S:::X~D7~A;-:::Q:--~3"'\........ ~r.I-::S:-;-:XO;:::8:-:::C-::Q--Z-:-"l4) -

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   -------::""1-.....                                                                             ~                                     I I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        I I            "'\..M-42"3 ~-----cI11S~XQ06~A~A;::=JI~6)-1',,'J-........-.'.5......_ 1IIIf
           "-/---.;.F...;;.3----/~                                                    -

p M- 163

                                                                                                                                   *t-l                                                                                                                            ~                              Isxo61-
                                                                                                                                                                                                                                                                                                           -                                                                                                                                                                  ~                                              ISX061-                                                                                                                                                    I
                                                                                                                                                                                     =:SX:;;0::;1-:-;AL:------:;4:"\.JfIIIIIf---l:-JiII(~:-:1 S:::X::":OS::-:A:-:-L~1~Z"'3r IK(lI~S~XO~3~A~L===I3..r'\...---__ ------..:-:-I:fS~X~~O:;-;::6::.:.-;:;,G~L~_=__=_~4;\~                                                                                                    ~1~Z"'3rIKC;-;:I~S~X~01~A~L===~3)......                              =~::i-.==',~I~S:-:-X~O~8~e~l==                                           =~4-:!.J)-

W I III 4 L.-_-L.....f-:-, ~ISX09AL I X Vl ORC _4 IRC

                                                                                                                                                                                                                                                                                                                           .-::-.T'.

1...... . . . 4 -..[:]l1li I SX09AL .... I '-~- I

                                                                                    ~

I F1~A-A-...-...\Y-1~ ('--1S-X..... ""-<ISX01BC 10) l......I_SX_O_6_EC_ _1_0--'~ 10) (-.. .;I. . ; .S.;. :. XO::. . ,:8c..: ; B. ;:;. C_.:...:1O:./~ I I

                                                                                                                                                                                                                                                                   ~                              ISX061                                                                                                                                                                      ~                                               Isx061                                                                                                                                                    I I                  ~LJ
                                                                                                                                                                                                                                     ~I:-;:S:-;-;XD~S:-::A-:::G~ I~K~~c;l~S~XD~3~A~G===~3)-=:::::,::;-==(JI[;S~X~06~G~G===I)4)--                                                                                                                       -e-- J SXD9AG~1~Z"'3rIK81~S~X~D7~A~G===~3> ......                                                          =~8'~SKXO~8~C~G===D4) -

ISX206A I L.---J-:-r=:SX:;;0::;1-:-:AG=------:;4:"\..... ...&.-..I:--. .. f4-(ISX09AG 4 =:::::::i ..... I TEST CONN. << u I Ul I o

                                                                                                                                                                                                                                                                   ~                              ISX061                                                                                                                                                                      ~                                               ISX06!                                                                                                                                 x Vl

E LI....;

                                                                                                                                                                  .. L..J~-:-I-=SX;;=0::;7:7AC=------:;4:'\.----l::-~~:-::1                   S:7.X~os;:-:A:-:::c~I~Z1}IKGI~S~XD~3~A~C===~3)......                     =::::::~.==(~1S~X~O~6~GC~==~4)11-
                                                                                                                                                                                                                                                                                                                                         ....                                                                         f4-(ISX09AC                   4 ~ I SX09Ae~I~F:Z1rIKG;-;:I~S~X~D1?iA~C===}3>-=:::::.::::J:.-=::::;G;-;:,~S~X~08~C~C===i)4)--                                                                                                                                  E:

I I I (ISX7IAC 314~ ~ Isx061 I I I HI 8 @].-( I SXI 07C ISX07JC I SXE I Ac~I~Z'3rIKG;-;:I~S~X~D8~A~C===}3>-=:::::.......'"1.--J'"-=::::;~I~S~X~0~8illO~C===D4J-"" I I [ ~ I SX116 (ISX14AC ~4.r---. I

                                                                                                                                                    ~

ESSENTIAL SERVICE I I E11 WATER COILS I ISXIIOC N~8 I I nEW IVPOIAC Ie I SX116 L:J I I I ....-----, E \I I IHS I~ Ell I ISXl01 Ell I te ll ISX92AA ISX92LA I IPM06J I FI IFE IFE I FI 1 o ,.....--~MO---, SXI18

                                                                                                                                     ~

o SXI18 SXI24

                                                                                                                                                                                                                                                                                                                                                                                               ~

o SXI24 0

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           -------------------                                                                                                                     ISX92EA                                                                                                                                                                                                                                                   ISX92QA I                                                                       ISX                                                                                                                                                                                                                                                                                                                                                                         NOTE 2                                                                                                                                                                                                                               I B                                       021A-1                              NOTE 2             1SX257B                                                                                                                                                                                                                                               I 1SX261B I                1RX                                                                                                       ~~~'--r-.L--eI~S~XQ01r!F~A~JI]6)""'-O:'_-<:Drs~x~0~1~EAC~140*-                                                                                                                                                                                      ..J-iiiiiiiiiiiii.\.                   I...                                                                                                                                                                                                                                                               I PR002                                                        '-------,                                 I I =SX=O=S"'1-*

4-r,I-:'I-=S=XO=S:-r--:-  : I 4--{ 1 SXH4AA 4) I I HIGH VENT VALVE POINU~~ ISX06EA 10 I I I SX220A I ISXOl8A I I SX022A ~ "- I I

                                                                                                                                                                                                                                                                                                                                                    <V ~o*r/L 0 I

I P-14 M-163 M LO_ \/1 Ao I I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ~

SXOS W;- w

          ,1sx189AJl r
                                                                                                                                                                                                                                                    ~                                                                                                                                                                                                                                                                                                                                                                                                                                   I
                                                                                         ~

x ISX061 ..- Isx061 ORC_ IRC o ~ 1SXG6A :t4) <<

                                                                                                                                                                                                          ~ I SXDSAN~1~~I~(JI[;S~X[03~A~NC==~3)-=~:::;-==CI~SKXO~6gG~N===zI)4 I

4~'" ~Z1} 1~r.I-::S~XD~7;-:A7.N---::;3"'--...... L~r.I-;:SX~O~8:-;:;e:7N--z7'l4 ~ Vl

                                                                                                                 '-'"'                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               lD
                                                                                                                                                       ...... 'SX01AN                                4                                                                                                                                                               )II_                                              "'ISX09AN                                      I SX09AN       3                                                               ---.:"'.        .                                                            )-                                 -
                                                                                \M~

0) x (ISXF6AA Vl I ISX201A ~ ~ I SX06 I ~ I t---:olA-~--,r----..;.a.,ri~tJ-----I ISX061: c JMJ. C l 1SX 2 31 A L---:L....../I.iIS;:"\jX;;:;0:;-:1A;-;J,.----j4""\.-----I:.-~~:-:IS:::X::::DS;:-A~J~I~EV/~I~(JI[;S~X[D3~A~JC==~3)-=:(:::;-==CI~sKxo~6~G~J===:D4)11- ~ ISX09AJ 4~ I SXD9AJ~I~Z1}IKCI~S~XD~1~A;J===~3>...-=~.::~1.....~(~I..=.S~XO"::.:.8~C~J_~4)- Wm l lD ...........' '----_.... I

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ~h A

o I~ I

                                   *                                                                                                                    .--< I SX01BA                                 , 0)                                                                                                                      C. . .I_SX_O_6_FA_ _             I o.../~                                              ..--(ISX09BA                 10                                                                                                                     ( I SX08BA                                            IO~
                                                                                                                                                                                                                                                     ~                                     ISX061                                                                                                                                                                              ~                                                ISX061-I
                                               ~
                                              *oa::                                                                                                  L~  __...I7"".1S:'-;:;X;;;'O:;"7A:-;:E:-----;4""\.----l:.-~..:... /I;;S~X~DS;-:;A:;::E~1~K:Z1rIKCI[;S~X:[D3~A~E===]3)-=::::::::;-==G" I~S~X~06~G~E===~4)II_                                                                                                      1~_---J-:-I::-:SX:::O:-::::9~AE=---4~....  . S:vX~D9~A;-;::E~1~~'~(J,~S~X[D1~A~E===}3)-=:::::......:;--==(J,~SKXO~8gC;E===:D4) -
                                                                                                                                                                                                                                                                                                                                                                                                                                                         -J:.-.---f';-;:1                                                                                                                                                                                     Ell          ~            I 0...                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      -N I PI                             I IRE-PR002        Y                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SXIII X

Vl I M-18 -14~/~1 ~ ISX061 ~ ISX061 I [)7 "- I RADIATION MONITORING

                                                                                                                                                     *~J7""'.1S~X:::-O=-7A=-=A----:-4""-.-----1::-           ... . ../',,;-;::s:V L-.                       A~I~F:~ ~CI~S~X:[D3~AQA===]3)-=:::::......

X"'OS:::-:;A:"7  :;--='==([;1S~X~06~G~A===])4:>-- f4-( I SX09AA 4 -..[:. . I SX09AA~I~~ ~CI~S~XD~7~A;A===~3)"'=:::::':~"==GI~S~XO~8~C~A===ij4)- I SYSTEM

                                                                                                                                                                                                                                                                                                                                                                                                                                                                               ~     S'X08                                                                                                                                                  ~ ~TEW I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        I
                                                                                                                                                                                                                                                                                                                                                                           ~ 7 I
                                                                                                                                          ~4~                                                                                                                                                                                                                                                                ~411                                                                                                                                                                                                                                                                       I
                                                                                                                                                                                                                                                     ~l [ ' \ . / l r (t SXD2AA                                                                                                                                   SX08                    I SX06 I                                                                                    (ISX7SAA                                                                                                                                 I SX06  I                                                                                                      "1                    EI I l-]                                                                                                                          ~~                                                                                                                                                                                                                                                                                                                                                                         SXIIO
                                                                                                                                                                                                                                                                                                                                                                                                       ~

i I ISXIII A I I B WJ ISXI01A L~ ~L-I--;-I;:-;SX;;O~7"7JA;----:;4;"\JfIIIIIf--J:--r-~......t'j(1 S:VXruD6i=.jAl"AA

                                                                                                                                                         ...                                                                                                       3                      K81~S;X~D4~A~A===::;3)-=:::::::~-==GI~S~X~06~Ji~A===~4                     )-,.                                              . - ( I SX090A                 4...-r. . I SXE 1AA            3       ~Z~IK~I..=.S~XD"::.:.8~A:':::A---::::'3..r""":...r""'~I.....:I.::.S:.:...XO"::.:.8~O:"::::A-~4)-

B I I [ ~ [ ~

                                                                                                                                             ~

(ISX10AA ~4~ (I SX14AA I ESSENTIAL SERVICE ESSENTIAL SERVICE I N~8 w

                                                                                                                                   ~

I I I o ~ imR cO~ ISXI06A

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 .lAIER CO~                                                                                      I SXII OA                                                                              I
                                                                                                                                      ~              ~~

IVPOIAA IA B IVPOIAA IA L:J u I I ISX021A I ITi I SXIIO I CAPPED~ I 1SX253A

                                                                                                                                                          ..r--{ISX07CA                              10)                                                                                                                                                                                                                ~ISX09CA                     10)

I (ISX71AA 314 ~" EI I I 1SX259A I Ell Ell NOTE 2 Ell I £ISX92FA 1/2~ ISX92JA ~ I 1Ft IFE IFI o IFE I SXI12

                                                                                                        £ISX92BA            1;2~                                                 SXI12                                                                                                                                                                        SXI22 I SX92NA          !-'2                                     SXI22                                                                                                                                                                                                                                           I I                                                                                NOTE 2                                                                                                                                                                                                                                                                                           I 1SX259B              ....                                                                                                                                                                                                                                                                            I I 1SX255BV                 \  *                                                                                                                                                                                                                                                 .....

I I 1SX255A DRAWING CONTAINS lSI LAYERS I I I 1SX263A 1-------' FOR NOTES SEE OWG. M-42 SHT. 5A CONTACT lSI GROUP PRIOR TO REVISING I I A REV DATE DESCRIPTION PREP. REVR. APPR. AI AE EDSF FOR RECORD-INCORP. OF EC #359990 EDSF EDSF EDSF DIAGRAM OF ESSENTIAL I SERVICE WATER I I (PRIMARY CONTAINMENT VENT SYSTEM) I I I SCALE  : NONE I ExelonSM NUCLEAR SAFETY RELATED DATE :03/06/97 M-42 I Nuclear EQUIPMENT IS SHOWN ~D~RA~WN~BY~:B~HD~=k:~~:;;;;;;_~~:.....k';;;:'7t~ I Byron Station 6 Unit: 1 ON THIS DRAWING ORG. BY :5040 SHEET NUMBER: 58 SIZE: F M0511 I CRITICAL CONTROL ROOM DRAWING I 8 7 6 5 4 3 L _ -----'------ -- -- - - -- -- -- -- '--- -- - - - - - -'- - - -- _ _ _1 2 1- 1 J

I- ------l 8 7 6 5 4 3 2 1 I 8NIMV~O ~OO~ lO~lNOJ lVJI1I~J I I I I I I I I I I I I F F I I I I I OSX234A J ~1 rr OSX234C NOTE 9 uS V

                                                                                                                                                                                                                                                                                                                                                      -w
                                                                                                                                                                                                                                                                                                                                                      ~LL LLQ SO (J)
                                                                                                                                                                                                                                                                                                                                                              ~~
                                                                                                                                                                                                                                                                                                                                                              ~cn I

I I NOTE 5 CTYP) - 11SX49 0~X031 - (J)<< 'i.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                -~~

I I ____+-=F:---:2~8::-::6::-4_:_+---iI~-F - 2739 I F -2864 F -2739 I \1I, (-

                                                                                                                                                                                                                 ------tI~----------~U E11
                                                                                                                                                                                                                                                                                                                             ......-+-----------------.. .~. --+1\.:..                                          HOT WATER                                  -
                                                                                                                                                                                                                                                                                                                                                                                                                                                             ~    ... I NOTE 11 A.~      .....

HOT WATER I OFE BYPASS LINE BYPASS LINE I SX280 M 7/ M 7 / o SX 98 AB 24 C7 '" r-(-oSX 98AA 24 I

                                                                                                                                                                                                                - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -  - - - - - - - - - - -~====-=j-___I_----                                                                                                                        - - - - - - - ----+--11-----,                                                                C1    "

E12 HOT WATER HOT WATER r-@ < < I

                                                                                                            ~                                                                                                                                                                                                                                                                                          r<

OFE NOTE 10 BYPASS LINE BYPASS LINE SX-==2=8_1_~""'_":_-'_1~1-S_-'-X':"::48:....c -+-+-t~_:,-.....(r0 SX 98AD 24 -~; -7 24><M-~~ -7 E -.--------....<$> I r-0-S-X-A-~-B-;--2 ---- I t-i=-0=S:X:0=4= 1::= t1 M rOSX98AC E: OSXA1BE 2 IOSX169E OSX168E OSX169 F OSX168F

                                                                                                                                                                     .....-------+-"""'II-I-----'--~~.~~I                                                                            (~
                                                                                                                                                                                                                                                                                     ~

0SX284B NOTE 11 I

                                                                                                                                                                                                                                                                                          . . . . . . . . . . .- D'---..                                                  I
                                                                                                                                                                                                                                                                                                                                                                                   -j     0 SX 164 B r'\
                                                                                                                                                                                                                                                                                                                                                                                    ,V \ J ~

r'\ CHEMICAL M 8 ADDITION 01

                                                                                                                                                                                                                                                                                                                                                                                                                                    <                                                                                  1 2-'-
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ~'-/ M-~12-8<

CHEMICAL ADDITION I I OSXA1BD 2

                                                                                                                                                                                                                                                                                                                                                                                    'D                                                                                                                                                       (   ~

1 < OSXA1 BC 2 CHEMICAL u CHEMICAL ADDITION << ADDITION 8

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ~
                                                                                                                                                                                                                                                                                                                                                                                    /                                                                           E11
                                                                                                                                                                                                                   ~OSX234D
                                                                                                                                !------{ OSXA1AD            2                                                                                                                                                                                                                                                                                                                                        E12 I OH ~21
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /'
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ~: IcD ~ M-;i-
                                                                                                                                                                                                                                                                                                                                                                                    ,        r'\       F'\        M 8                                                                                                                                                        I
                                                                                                                                                                                                                                                                                                                                                                                                                                               ; IS~~~61 ~ ~~~:71
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ~      x OSX169C                                                                             OSX169D        V~                                                1SX100                                                                                                                                    ;                                                    OJ D D \.J                         B1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ~.

l/l IS! I

                                                                                                                                                                                                                                                                                                                                                             <<              LT S   I      (I //                                                                                                                    <<

OSX168C 9$> OSX168D '-----!OSX2 34 B

                                                                                                                                                                                                                                                                                                        ~
                                                                                                                                                                                                                                                                                                        ~

SX058 L() (!) 5B ICKAH

                                                                                                                                                                                                                                                                                                                                                                                        ---;;::I-rr--

D ~ ~ r:i L()

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ~                         IC~(D                      v OSXA1 BB 2                                                                                                                                                                                                           OPMI01J                                                                                                                                  OPM 01 J               r:i             OPM OtJ                          lCKAH r.0- MIO                                                r:io i

1/ /' OSXA1BA 2 I lJ) o ~p.., gg o o I OSX169A o SX 168A OSX169B ~ .l-.

                                                                                                             <i$>

OSXA1AB 2 o SX 158 B 1SX100 1

                                                                                                                                                                                    <D<D COCO NN I

LLLL I _ I F-27391~ I F- 2739 1 0LI B OSX 158B-21 r <<

                                                                                                                                                                                                                                                                                                                                                                                      '<t N o W X X 0WW049A
                                                                                                                                                                                                                                                                                                                                                                                                                                             ~O~~         158A-11 c1- O~~            157A-12
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       ~

N

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              << <<ro o

X X N r-0 0LI B I I SX284B ~ l/l l/l

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ~        III    l/l     SX284A
                                           ""t                                                                                                                                                                    0WW049B                                                                                                                                                  ri                                                                                                                                                      M        o      0                           I
                                                                                                                                                                                                                                                                                                                                                                                                                                        ~
                                           <D<D                                                                                                                                                                                                                                                                                                                                       0    0 COCO                                                                                                                                                                                                                                                          Ho SX 86BB8) Ho sx 10 DB 8                                          CD                                                                * --{O SX86 BA 8                   HOSX10DA                    8                       <<

NN << << I D - - - - - 1 ' I ~_ _ - - - - - - - - - - - - - ---1---------......1=...__--- <D m OVERFLOW

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     <D D

M LLLL

                                                                                                                                                                                                                                                                                                                                                                                                                                   - I~

O'l

                                                                                                                                                                                    ..... m                                                                                                                                                                                  X                          CHANNEL                                                                                                                      X                                           I m                                                             CO                         "",M                                                                                                                                                                                     l/l                                                                                                                                                     III o                          1" SLOPE.=-\                                                                                   IOSX164A                      o r

t"-t"-

                                                                                           "'X" l/l                                                           "'"

X l/l NN

                                                                                                                                                                                      ,   I n

y I

                                           .....                                                                                                                                    LLLL                                                              ro                                                                                                                      I                             BASIN I
                                           ,,~                                                                                                                                                                                                                                                                                                                                I                          OVERFLOW @

64% EL.874'-6"".. NN LLl.L I ro I 0SX02AB 0SX02AA I ESSENTIAL SERVICE WATER ESSENTIAL SERVICE WATER C\I

                                                                                                  .....                                                                                                   N
                                                                                                                                                                                                          .....                                                                                                                              COOLING TOWER BASIN                                                                                                                                            COOLING TOWER BASIN
                  ~                                                                                                     ~                                                                                                                                                                                                                                                                                                                                                                                  v1 CD                                                                                                                                  0SX138B             I co                                                                                                                                                                                                                                                                                                                                                                          0SX138A              I y                                                                                                    y CD                                                                                                                         CD o                                                                                                       o                                                                                                                          <<
                                                                                                                                                                                                                                                                                                                                     ..-      NOTE 8                                                                                                          ..-                           CD I
                                                                                                                                                                                                          .....                                                                                                                                                                                                B X                                                                                                                                                                                                                                                                                                                                                                                         ~

IS! IS! B l/l r:i OHS

                                                                                                                                                                                                                                                                                                                                     ~                       ESSENTIAL                                  OHS X

l/l '<t III 0SX255A I I o o IS! SERVICE IS!

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           -=-             tJ0SXM2A                      2)

I I E-11

                                                              ~OSX155A                 I                                  I I

E-12

                                                                                                                                                                       ----j OSX155 B WW017 Y                       WATER PUMPS 1L-------1!I---~'" M-42, 1A                                     WW016                                                                                 ~~                               ESSENTIAL I
                                                                                                                                                                                                                                                                                                                                                             /       C-8                           OPM I01J                                                                                 ~            ~~                  SERVICE I   OHS                                                                                             I   OHS                                                                                                                    I 0WW048B                                OPMI01J                                                                                                                                                                                                                                                                            I (fl',--/-,L--
                                                                                                                                                                                                                                                                                                                                                                                              ~ :I                                                                                 __hL...-------,;S,£----#--~-A                 J_~_4~_,7S~,LUM-P-S-__h'-----H-------'

I I L.O. I I L-------l! / c C l C-8 L~ I SX052 I SX053 I 0WW048D 0WW048A ,'----;/'7L---- - 1-1-_ _-H-_ _---,#-_ _ L.O. I OPM 01J I OPM 01J I co'i\rol

                                                                                                                                                                                                                                                                                                                                                                                             ~,~, @Ji~,

I I 0WW048C I OSX94AA3~ CO OSX94BA3~ CO

                                                                                                  ~

I CD

                                                                                                                                                                                                         <<                                                                           ,~,               ~r,                                                                                                                                                                                                                                                                       I o SX028 A         o                                                                                 OSX028 B             o.....                                 DEEP WE.LL PUMP                     ~~ ~~                       V                                        DEE~N~TEELL7;UMP                     j~ j~                V o                                                    ~                                                                                                      X
                                                                                                                                                                                                                                                  >   (NOTE 7)
                                                                                                                                                                                                                                                                                      ~                                                                     >ME~3                               ~

I

                                                                                                                                                                                                                                                                                     -z CD                                                 l/l o

1""SX"4"-;;:;-~ X o M -83' I>.:, F.C. J 1 SX49 r:0 I l/l

                                                                                                                                                      .....                                                                                                                                                                                                                                                                                                         NOTES:                                                                                                       I OSX02MA                                                                                                   OSX02 MB              I                                                                                                                 OWW07AA 8                                          ff' x6"            "'., ,

(OW::7AB8 OSXE9AA 112 10x8 r-N-r----....

                                                                                                                                                                                                                                                                                 ~                        8"x6" a:>
                                                                                                                                                                                                                                                                                                                                                                                          ~               (NOTE 6)                                                 2. UNLESS OTHERWISE INDICATED, ALL a:>

OSXC4AA 1 10x8 OSXC4AB 1) ~ (NOTE 6) CD CD ~ I OWW019 A I ;ii PIPING IS SAFETY CATEGORY 1, QUALITY

                                                                                                                                                                                                                                                       '-0-C-W-1-0-0-6-'                            OWW 019 B          I                                          I OCW100A                                                           ~

GROUP C, AND PER PIPING DESIGN TABLE g~~~~~t:~-v~~FlC:OSX ~!T~~~~~?i~~?~l: --losx 179 B X N

                                                                                                                                                                                                                                                                                                                            .....                                                                                                                                                                                                                                                I V) o:sx 179 A                                                                                                                      I                                                                                                                                                                                         x                                  105BB.

X B6 AA1 - OSXB6ABn r OCW171 B l/l I OCW171A ~OOBB ~ SEAL LEAK-OFF -{OSXB4AA2) 0'-:-=~:-I --{OSXB4AB2) CIRCULATING 100BB

                                                                                                                                                                                                                                                                                                 ~~

l05BB o CIRCULATING ~0

                                                                                                                                                                                                                                                                                                                                                                                                      ~/

j05BB

                                                                                                                                                                                                                                                                                                                                                                                                                                       ,/

4. PTFE PIPING BY DOW CHEMICAL USA.

5. SENSING LINE LENGTH FROM ORIFICE FLANGE I

TO FLOOR ORAl N ~V WATER I

                                                                                                        ----JOSX178A    I                              1SX80                                                      """'OSX178B               I                    WATER MAKE-UP                                                                                                 MAKE-UP                                                                                            TO ROOT VALVE SHALL NOT EXCEED 8 INCHES.

losxo1 MA I--~ I IOSX01 MB t--J IOSX03M 6 ~ Y OSXB3AB2 - . .

                                                                                                                                                                                                                                                  ""'-M 3A
                                                                                                                                                                                                                                                   /        65                                                                                              >M-~~-3A             r        ~~

SENSING LINE LENGTH FROM ROOT VALVE TO END CAPS SHALL NOT EXCEED 8 INCHES. B I I B IOSX03MA ~ Lj OSX04MA I ~OSX04MB I - - 6. SEISMICALLY QUALIFIED VALVE/HANDWHEEL ASSEMBLY. (OCW04DB 8 OCW04DA B)J ./ 8"x6" L.:-1=SX;:=:=:8~11 ---J1 I OSX E9 AS 1/2 I

                                                                                                                                                                                                                                                                                                                                                                                  ~~_~

0 SX 156A ~~:t----I 0 SX 156 B 7. DEEP WELL, WELL PUMP & MOTOR AND DISCHARGE I OSX02PA E11 OSX02PB [OSX 143 6 PIPING FROM WELL PUMP TO ESSENTIAL SERVICE E12 JOSX143 A OA-11 ESSENTIAL OFI SX122 OB-12 ESSENTIAL Jt . ~ WATER COOLING TOWERS IS SEISMICALLY QUALIFIED. I SERVICE WATER OSX95AA1; SERVICE WATER MAKE-UP OPM01J 8. VALVE IS NOT CAPABLE OF PERFORMING ITS CLOSED FUNCTION I PUMP-------+

                                       .-           OSX95CA1h                     OSX 156C MAKE -UP PUM.t"'P--..,.I-~

SEAL LEAK -OFF V" - V" V' V' ---V' ~."" -

9. SUBSYSTEM CHANGE OCCURS AT THE NORTH VALVE \

V' V' V'- V' V' ~- - - - :':\ I CO X --10SX10MA I TO FLOOR ORAl N I V)

                                       .- ~-----(OSX85AA2)                                       RIVER SCREEN HOUSE

10. SUBSYSTEM CHANGE OCCURS AT THE SOUTH VALVE CHAMBER A-2 FLOOR.

I I I I

11. STAINLESS STEEL VALVE INSTALLED.

I I DRAWING CONTAINS lSI LAYERS I CONTACT lSI GROUP PRIOR TO REVISING I I A REV DATE DESCRIPTION FOR RECORD-INCORP. OF EC# 366121 PREP. REVR. APPR. AI Ai. EDSF EDSF EDSF EDSF I DIAGRAM OF I I ESSENTIAL SERVICE WATER I I I SCALE  : NONE I NUCLEAR SAFETY RELATED DATE :09/18/96 M-42 I EQUIPMENT IS SHOWN DRAWN BY:ACT I I B ron ON THIS DRAWING ORG. BY :5040 SHEET NUMBER: 6 SEE: F M05 CRITICAL CONTROL ROOM DRAWING I I L _ 8 7 6 5 4 3 __ _1_ __ __ 2 _ _ 1 J

I- -- -- -- -- -- -- l I 8NIMV~O ~OO~ lO~lNOJ lVJI1I~J I I I I I I I I I I I I I AH 0SX02AB AH AH AH 0SX02AA AH I OB OA I ESSENTIAL SERVICE ESSENTIAL SERVICE WATER COOLING TOWER WATER COOLING TOWER I I I I I 0SX03CH-22 ESS. S.W. COOLING 0SX03CG-22 ESS. S.W. COOLING 0SX03CF-12 ESS. S.W. COOLING 0SX03CE-12 ESS. S.W. COOLING I .. * *

• I TOWER FAN 0H TOWER FAN 0G TOWER FAN 0F TOWER FAN 0E I I (0SXM1M I, (0SXM1AB (0SXM1AC (0SXM1AD 2PL05J I

1PL05J I ____G_.._._~-_~-_~-_-...:II!"'~~-_-_~-_~~G)_.)-_-_ -_-_-_-_-_-_-_-_~1===::~_0::::::::::::::::::0_.:\.._-_-_-_-_ -_-_._O~O=S~X=O=3~c:I-~9J_~-----..1 ( ..

                                                                                                                                                                                                    .'      /~
                                                                                                                                                                                                            ~ L_.

1PL04J ESS 0SX03CA-11 _ _TOWER FAN 0A _._S_.W_._C_O_O_L_IN_G 0SX03CB-11 TOWER ..... E_S_S._S._W_ FAN O_LI_N_G_~ O... 0B C.... 2PL04J 0SX03CC-21 TOWER FAN 0C _ _E_S_S_._s_.w_._C_O_O_L_IN_G 0SX03CD-21 _s_.w_._CO_O_L_I_NG_~_ TOWER FAN 0D ES_S_. I I I I I I I II II (\1..- 00 r--r-- (\I- I ~~ ~ I 00 OS)(02.AA

                                              'I                                               ESSE NTIAL sERVlc.e coollNe TOWER 88 coco 00 wu 00 00
                                                                                                                                                                                                                    .0 to 99 I

I ESSENT'AL SERVIC.E OA (05)('19&6 ~)-J WATER uu wu uu_--------.:..----------:.----------:-------------, WATe" COOL-INS TOWER I w wlLl e.L.OwDOWN TO

                                                                                                                                                                                                                    -f--

C.lRC.Ul..JIl".TIWc:, w",,.£.R.

                                                                                                                                                                                                                                                                                                                                                                                                                                   'NT~KE F'L.UM e.
                                                                                                                                                                                                                   --1-+--'

I

                                                                                                                                                                                                                                                                                                                                                                                  "       "     " "                                    (M-<44-3A/
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              \
                                                                                                                                                                                                                    ~                                                                                                                                                                                                                               83 .'-

o"""l Ol CD ~ ~ I C\I ~ to N I

                                                                                                                                                                                                                          ~                                                                                                                                                 0 CD ,.--...        I' CD                                               ~                                                m                                                                                                               (OS~AGt~6 CD 0...           N                                                                            m                                                                                                ro1 CD
                                                                                                                                                                                                                                                                                                                                                                                                                  ~

(\I I lSI L{)

                                                                                                                                                                            ~

i:= I i..L. I IL U.'" I ,...

                                                                                                                                                                                                                                                                                                                             ~

0-

                                                                                                                                                                                                                                                                                                                                                                             )(                               ,"0\
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  \9 l

co ~ I- )( ~ m en f/)

                                                                                                               ....                                                                                                     ,                                                                                                                                                   ~
                                                                                                                                                                                                                                                                                                                                                                                                                  )(
                                                                                                                                                                                                                                                                                                                                                                                                                  ~

dl r- ~ I~ Q\

                                                                                                                ~                                                           CD ,.--...
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ~     IE::::"                            ~
          £12                                                                                                   )(

CD 0... d) r- dJ L{) lSI i:= d:l r- V Eli B 0

                                                                                                                                                                            ~

0F4S

                                                     -1                                                                                                                                                       0\
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ~076 ~                            ~w
                                                                                                                                                                                                              )(

en 0 M-~eto_*I~~ ~ ~ \ ~ cY 1- HOTEl NOTE 1 V ~:l~....... NOm-\ NOTEl:l\ < ~~ OPIJIOU_ i l ~r=0S: C-:-:X2=-=- C51- '- 'AI I

      "'10 OSXleZ&

MO C:SCl63E a:I~3A L.J.-.. ~..J~'" OSX\63= .lSJ or- N! OS::3C-ltSJ........ ~I:3U T

                                                                                                                                                                                                                                                                                                                                                                                                      .fS].........

T:- N

                                                                                                                                                                                                                                                                                                                                                                                                                                ~zc~Tl~,:2A
                                                                                                                                                                                                                                                                                                                                                                                                                                    -2' I                          'SXK1A             "

I -12 -2.2.

                                                                                               -2.2                                                                    ."                                                              -II                       ~,                      -II                                               -21                                           -21                                                                               -II             I
                                                                                                                                                                                                                                         !                       .. - N!                                        ~                                                ~ N'                                                                   I                      ~      ~                    I       ~I   IOS)(tel~

ifQT

                                                                                                                          ~

I

                  ~

N N C'l r- j I j jl- i -- \L. I .....

                                                                                        ~                                                                                                                                                                        ~        ~                                                                                      ~ ~ ~                     I E~I          ~                             t--E~n 0 ~                    ~                            ~
                                                   %                                                                                                                      I
                                                                                                                          <                                                                                                                                                                                                                  i I                                                                         I                                                                                                I Ell                                            IE"

9 I r- I E'L2 :r: C w

                                                                   £.22       c..?                    E22    i..L.

Elt & £12 << 10 E21 @

                                                                                                                                                                                                                                                                 ~ ~                                            ~ ~ g                                  ~t ~                                                ~~g                                          ~ C1Sx I"-                                                                                                                                                                                                                                                                CD    CD                                                                                         0 l(M"f3"IA                              to        D)                         to        ~                    to                                  to as                                   g          .......-S..-....                                                                       g                                                   ...--"'-...                           OTS -sxo 90                  ,...
                     ~I

r: :r: :r: )( :r: )( r--04 Q.S 1l"Il--=-;

OTS*SX091 ~ x X II) OHS x

                                                                                        )(

IIJ a-.s x tb O-IS x II) OHS ~ ~ ~ ~.~ ~ ~ t----t\~ ~ ~ ~ as )( (/) ~ I II) )(

                                                                                                                                                                                                                                                                      ~            S)(Q 67 {Ill ~ 0                   ~                                ~ III                                              ~

(/) (/) (/) (/) '-'MQ 0 lSI 0 lSI 0 lSI a lSI 0 S(O&6 0 lSI lSI 6)06& ....0 L, lSI "'S->O--b-9-f lSI lSI 9>078 log

                                                        $')(073                              SX072.

I QPt..tou OPUOLJ OPUOU SX071 OPUOU SX070 OPUOU OPUOU 'tiT' P QPt...40U ( 1 ~ ) r

                                                                                                                                                                                                                                                                                                                                    ~O~l;>U-O~)Yt.....l(~1 ~ J_ _

t opuou____ _1_1 MA4j.1~ OPUOU I

                       ~~2"IA I Iry-"v                     fJ  I   _                                   1;11                                                'Ii 83                                                                                                                                                                                               (0SXM3A         1Y2>-!J/                   10                    (    /                     10                     J      .~                10                                          10        OTS-SXOS2                 I....                 F286~ f2739              ~~~~r;-:;r~AL.

OTS""X093 IO

                                                                                                                                                                /¢16" LINESTOP                            x                                                                                   ( I /0SXM3B             1Y21)                     1/    /0SXM3C
                                                                                                                                                                                                                                                                          .I--~\~iiiiiiiiiiiiiiiiiiii. . .I.1 __-:\.~\~~~~_r/~_:_"':":':~_~~~~~--------...L-</M-E4e2 1Y2)              -=                                                                ..                            ...~            WATER RETURI" 0SX250H 0SX250G                              0SX250F                               0SX250E r    FInING (TYP.)                                                L                  -/-
                                                                                                                                                                                                                                                    ---l                                                                                                                           L os.lCPaC~~                                                                                        -2B/   ~
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        ./
                                                                                                                                                                                                                             ¢ 16" LINESTOP                                                                                                                                              ¢36" LINESTOP I                                                                                                                                 FInING (TYP.)                                                                                                                                                                                                                                             ESSENTIAL SERVICE
                                             ~-I---------*I--TO                                 BASIN-----I*------                                                                                                                                                            \                                                 \                                          I                                          I                                                                   WATER RE:TURN
                   ..~                           ...._ _.,._ _~_ _...I~                                                   ""                         ""                                   ---             1..                                                                * '-_-.-.-.-.-.-_-.-_-.:-_-.-.:-.-_-.-_-.~:.-.-.-.T.o.;..;;e;.;.A.;.;;s;.;.1N-,;.-.-.-.-._* .L.-.-.-.-.-.-.-.-.-.-_-.-.-.-_-.-.--I_~~~~~~----------_<./,
                                                                                                                                                                                                                                                                                                                                                                                                                                          *4&
                                                         ---l.----o....-¢36.. LINESTOP NOTE&~                                                                                    3. UNLESS OTHERVVISE INDICATED,ALL PIPING I'

1. 2" DRAIN TO PERMIT DRAINING OF RISER UPON SAFETY CATEGORY I QUAUTY GROuP C

• CLOSING OF RISER SHUT-OFF VALVE-PIPING IS CAT IID.

4. OIL SAMPLE TUBING INSERTED INTO GEAR DRIVE I 2.HOT WATER BV PASS VALVES WilL BE OPtN'ED (APPROXIMATELY 1") - TUBING IS CAT 1, CLASS G. I AUTOMATICAU.Y WHEl1 WATER TEMPERA1'URI I IN 8A~\N DROPS TO 50 F AND WILL 6E CLOSED I AUTOMATlCAl.l'f WHEN WA1tR TENPERA1'URE I IN 6I\SlN RiSeS TO 00° F. I DRAWING CONTAINS lSI LAYERS I I CONTACT lSI GROUP PRIOR TO REVISING REV DATE DESCRIPTION PREP. REVR. APPR.

I FOR RECORD-INCORP. OF EC #367935 I AE EDSF EDSF EDSF EDSF I DIAGRAM OF I I ESSENTIAL SERVICE WATER I I I SCALE  : NONE I NUCLEAR SAFETY RELATED DATE :01/22/98 M-42 I EQUIPMENT IS SHOWN DRAWN BY:BHD I I B ron ON THIS DRAWING ORG. BY :S040 SHEET NUMBER: 7 SEE: F M05 I UFSAR FIGURE: 09.02-02 SHT: 11 CRITICAL CONTROL ROOM DRAWING I L _ ____________ J

I-8 7 6 5 4 3 2 1 I 8NIMV~O ~OO~ lO~lNOJ lVJIII~J I 2SX250A I I. I DIESEL GENERATOR 2.9)(2.01 A 2A JACKET WATER I 2SX20lC UPPER COOLER 600# FLANGE 2DG01 KA-X1 I 1X¥4 2SX27EA 8 2SXC7AA 3/4 I F 'Z.5X2.6A.AIO I 2SX16 2SX70 I I

                                                                                                          ~      To C.ONT~'~~£.MT

u. bU\l.DIN" UN IT 2.

AlJXIL.\A~'f FEtO c( <M-. '02._Ge-a::s-L I 'WATER. PUJW\P SUC.T \ON ('2.A) IZSX 2103A t--.-~ 2~X06AAlw Ii 2. I

                                                                                                                                                                                                                                                          -~o                                                                          DIESEL GENERATOR
                                                                                                                                                                                                                                                                                                                                                                                       - - - D G LOGIC Ell r--:2~H:-:.T-S'        ~                                                                             2A JACKET WATER                       201of.s

.< LOWER COOLER I S--.OS4 ~ 2DG01KA-X2 SXI2.6 1SXJ5AA I L.C. 2PMOIJ 2SX251A I

2SX~43 2SXH1C

                                                         ~=:..=...:.J 2AFOIAA MOTOR DR\VEN AUXILIARY FEEDWATER pUMP-2.A OIL COOLER it:

j I

                                                                                                                            ~,:-:::S~X"":':II-:'4~A---'

I E 2SX242 MOTOR E: ORlvEN ESF LOGIC ----I AUX.I L1l'C' 2 SX I 0 4A I FE.E.DWA. ,.e.~ PUMP 2 SXO,ti A'Gt I I!2. I 2AFOIPA*/ PELt__

                                                                                                                                                                 ~-

2.SXIOSA I I OPM02J I 2SX218A I 2SX221

                                                                                                                                                              ~. VENT      E SF lOGIC
                                                                                                                                                              ~LVE I

2SX057A 2.5)(OISA I TR AI N "A" e S 51: NTIAL. 5 ERVIC.c I WATER RETURN HEAOER 2SX250B 1 o L--------(t!:~~X.~O~']JH~A~t~()~-~M-4 F4 2-2B I. 0 I DIESEL GENERATOR 2B JACKET WATER I 2SX04BB 2SX201B 2SX201D UPPER COOLER 600# FLANGE 2DG01KB-X1 2SXC7BA 3/4 2SXC7DA 3/4 1X¥4 2SX27EB 8 I I

                                                                                                                                                                                                                      ~UPPL.V                                                                                                                                                                                          I SX16 2SX69
                                  'l.~X04-C~10 I

I 1"- AUX1LIAR."t FEED WA.,.e.1t PUMP ~--DG LOGIC I I

      ~UC.T\O~ (t~)                                                                                                                                                                                                                                                                                                                                                                    E12 DIESEL GENERATOR                                                                I 2HS 2B JACKET WATER

2. S X 1048 LOWER COOLER SXI27 I 2DG01KB-X2 c 2PMOIJ C l 2SX251B I 2HS SX056 L.C. I I

I I E2t 2.HS I I I 2SX105 B I B 2SXC8AB 2SX44 2SX46 B I I L: 2S to"lC\O" I 2.VAOeS ~:;..g""j-.:..l-- RED. T RA' Nile>" 2SX0578 DIESEL DRIVE.N ~UXILIARY ESSE NTIAL SE:RVICc NOTES: I FEEOWATER PUMP 26 CUBICLe COOLER 2SX 178 WAT ERR E TU RN HE AD ER 1 UNLESS OTHERWISE INDICATED ALL PIPING IS PER

                                                                                                                                                                                   .-----,                                                                                                                                                                                                                             I NOTE 3                                                                       FROM                                                       DESIGN TABLE 105BB.

2.R£-PROO!o 2 UNLESS OTHERWISE INDICATED ALL PIPING IS TEMP. L.O. SAFETY CATEGORY I, QUALITY GROUP C . I CON TRO\.\.E L----:::":--J 3 VALVES 2SX173 AND 2SX178 ARE DESIGNED PER L.O. PIPING DESIGN TABLE 00140BB. VALVE ENDS I 2SXE5A 3 2SXE5A 3 ARE THE PDT BOUNDARIES. I I 2SX2.05 2.5X07HB 2.0 I I I DRAWING CONTAINS lSI LAYERS I 6 CONTACT lSI GROUP PRIOR TO REVISING I I A REV DATE DESCRIPTION FOR RECORD-INCORP. OF EC 364909 PREP. REVR. APPR. AI Al EDSF EDSF EDSF EDSF I DIAGRAM OF I M-126-2 ESSENTIAL SERVICE WATER I A 1 I I 2SXOl5B I I NUCLEAR SAFETY RELATED DATE

                                                                                                                                                                                                                                                                                                                                                                      ~~       :~E

04/04/00 M- 126 I EQUIPMENT IS SHOWN DRAWN BY:DLB I I B ron ON THIS DRAWING ORG. BY :5040 SHEET NUMBER: 1 SIZE: F M05 CRITICAL CONTROL ROOM DRAWING I I

L _ 8 7 6 5 4 3 __ _1_ __ __ 2 _ _____ 1 J

1- - - - - - - I I [2S1'7 I I I I I F I,

                                                                           ~:H~-----------------------------.-(<I!)(n&.""~

2YE B fA' WATER SX190 I I I I 't'/~02.S~

                                                                                  ~'"'.~. PUMP.                                                                                                                                   B I                                                                                                                                                                                                                             2TE c.UalCL& c.oO~1t ",                                                                                                                        SX194 we               2TE B
                                                                                      ~

SX195 E I I I I

                                    ~

I B .... ---fo t .. ..

                               ~-

2TE

                                                    @-J SX1S5 I

I o I I

                                                                                         .....,                                                                      ')(.050"-10
                                                                                                                                                                    $)(0 .........

I

                                                                                ~~                                                                    1           (ElI.50ABi)

I I

                                                                                  ~.n                              ~FZ. au.

I

                                                                                                                   ~

I ~

                                                                                                                   ~
                                                                                           ~

2,V,,",OE& 5Io.1=E'Ty I~Ec:.'TIQN PU~P 2& c C:ualC..~ CCOL£R. I I NOTES: I- UNLESS OTHl!'ltWISE INDICATED ALL I PIPIN6 '5 SAFETY CATEGORY Z GROUP G AND PER' PIPI ..G DESIGN I TA6LE l o s e . I 2.. REFER TO PACIFIC PUMP DWG .CW-"9770 IN CENTRIFUGAL CHARGIN6 PUMP INSTRUCTIOI'I I MANU"L FOR C.oollN(; WATEFf B PIPINc:. L..AVOuT. I 3. VALVE EQUIPPED WITH ROTATIONAL STOP TO LIMIT FLOW. ~EE DWG. F-2918-2 I SD-C-109230 (1~) B SD-C-109231 (2") I 2TE SX197 I I I

                             '-------{ol---~

I I I I I DRAWING CONTAINS lSI LAYERS I I CONTACT lSI GROUP PRIOR TO REVISING I I A REV DATE DESCRIPTION AA 03/23/00 FOR RECORD INCORP. OF AS-BUILT PREP. REVR. APPR. AI BHD DlB WTP DCR #990345 I AB 09/01/00,FOR RECORD INCORP DCR #990486, "ADDED lSI INFORMATION) RM SK WTW DIAGRAM OF I I AC 01/05/01,FOR RECORD-INCORP. OF TO #1396 BHD AGS WTP ESSENTIAL SERVICE WATER I "DCP #9900375) I AD 07/30/01 FOR RECORD-INCORP. OF TO #1495 BHD JHl WTP I ItDCP #9900554) SCALE  : NONE I ExelonSM NUCLEAR SAFETY RELATED DATE :03/23/00 M- 126 I EQUIPMENT IS SHOWN f1D~RA~WNNB)BY~:B~H~D=~--_--.:..=~---.:..~~;-----!-----, I Nuclear Byron StatlonUDlllQ ON THIS DRAWING ORG. BY :S040 SHEET NUMBER: 2 ISEE: F M0Sli I CRITICAL CONTROL ROOM DRAWING I 8 7 6 5 4 3 L _ -----'-- - - '--- -- __L ___1- __ 2 1 L J

I- ------l 8 7 6 5 4 3 2 1 I £"lHS 92: l-V'-J 8NIMV~O ~OO~ lO~lNOJ lVJIII~J I I I I r----1--{2S)(.07AR* 4.:) I I I I I I NOTE: I I F 1.B:...*'ERFLY VALVES ZIA,B.CANOD F I

        ~O 25 A, 8, C f. 0 S.HALL I-l~ve LOCKING I        DEVICES FOR THE ~AIIlU~L OPERA TOR5\                                                                                                                                                                                                                                                                       I 50 THAT THe VALVF.s CAN &E !.\~t<ED I        IN ~v POSITION FROM 0 TO 10010 OPEN                                                                                                                                                                                                                                                                        I 2.ISOI"AT10N VALves          SUPPLIED WITH INSTRUM&I\ITS.

I I ZVP01AO ZVPOIA-C 20 I 2.C c~SENTIAL SERVIC.e. I ESSENTIAL SE:RVICe. 2St.D3AH-~ WA.TER COl\,.5 WATER COIL.~ (2S)(05AH .~,)-- 2SX220D I HIGH PC.IN T I 2SX220C VENT VA!.VE. HICaH POINT I VENT VALVE / .......""1 (2SXH3AA 4 V I lD E22 I e 2.1 <<

                                                                                                                                                                                                                                                                                    ~
                        ..------.                                                                                                                                                                                                                      rrl                                s 2.HS                                                                                                                                                                                                                       I E                         SXIO(Q X

I/'J N SX10e E: 2.PM ,O~.J I

                      . 2. PM OEo'"                                                                                                                                                                                                                                                                eSF
   .E:;F L06IC*-- - - '               ORC Z Ftc.                                                                                                                                                                                                                                                   LO~IG I

MO J----~I\D 2.SX 0 I OI(QA-1 ~ I

                                      \'I P-7 P-15 I

M-163 I I I E2.t 1 D 0 B

                                                                                                                                                                                                                                                                                                    \

B I 2TE SX20e 2SX92LA I 2SX92QA I I I

                                                                                                           ----I-{2.~XD7AN - 3' 2.SX92.~A 2.5~oeC~-IIt*

c.2.~)t.O,"GP-4"} ('~XD'AP;1D-I----~ r--r-H

                                                                                                                                                                                                                                                                                                     \  \

I I Z.:;X92.EA-Vi. I 25)c'91AA*~" is.,

           '-------f25X 210A               J                                                                                                                                                                                                     10 10 d) lL.                      2.H~

1!22 I

                                                                                                                                                                                                                                                 .....      t"-                                                    I
              ---{2SAS1AB            -vi)                                                                                                                                                                                                        O          0)<                     0)(.101)
                                                                                                                                                                                                                                                 ><         If)
                             '2HS        E 2.1
                                                                                                                                                                                                                                                  ~

c N C l I I I I I I I I I B 8 1

                                      &:.J TEST    co~.

I I I

                         ..---~        2PR04A         31.                                                                                                                                                                                                                                                          I I

I I I I NOT\: :. NOTE: I 3. UNLt;5S OTHERWI&E INDICA.TED 4. RADIOGRAPW WELDS IN CLASS "c"PIPING IN ACCOR:>ANCE I I AL.L PIPING Ie> 5AFETY CATEGOR.Y....! WIT~'ASME*SECTION mREQUIREMENTS.PERFORM MAGNETIC QUA.LITY GROUP C AND PER EIPING PARTiCLE E,xAMINATION ON ~~C'COI1_ NO'l~LE JOINT lSI GROUP PRIOR TO REVISING I AT WATER BOX HEAOER,ANO RAOIOGRAP~IC EXAM I NATION AI I A DESiGN TAeLE. 105 ea. OF'THE WELD AT TJ.lE FLAN6E. CONNECTION TO T~E NO'lll.E. REV AE DATE EDSF DESCRIPTION FOR RECORD-INCORP. OF EC 354486 PREP. EDSF REVR. EDSF APPR. EDSF DIAGRAM OF I ESSENTIAL SERVICE WATER I I (PRIMARY CONTAINMENT I VENTILATION SYSTEM) I I SCALE  : NONE I NUCLEAR SAFETY RELATED EQUIPMENT IS SHOWN DATE :09/01/00 M-126 I DRAWN BY: c502 I I B ron ON THIS DRAWING ORG. BY :5040 SHEET NUMBER: 3 SIZE: F M05 CRITICAL CONTROL ROOM DRAWING I I L _ 8 7 6 5 4 3 __ _1_ __ __ 2 _ _ 1 J

ATTACHMENT 5 Summary of Regulatory Commitments The following table identifies commitments made in this document. (Any other actions discussed in the submittal represent intended or planned actions. They are described to the NRC for the NRC's information and are not regulatory commitments.) COMMITMENT TYPE COMMITTED DATE OR ONE-TIME PROGRAMMATIC COMMITMENT "OUTAGE" ACTION ACTION (Yes/No) (Yes/No) The one-time extended CT condition will not be entered should adverse environmental conditions exist or are imminent (forecast within the next 12 hours). Adverse Environmental Conditions are defined as any of the following:

• Area environmental conditions such as icing, wind, or storms causing unexpected repeated station power line trips;
• Tornado Warning;
• Actual switchyard voltage alarms or notifications indicating voltage below that required for offsite source Upon implementation of Technical Specifications the one-time extension operability limits; Yes No of the SX train
• Predicted Unit trip contingency Completion Time.

switchyard voltage below minimum required switchyard voltage (unless a site specific analysis has been performed);

• Notified that at the current time a condition exists such that if a transmission line or other transmission facility were to trip, then site will be below voltage operability limits.

Should adverse environmental conditions develop after the extended CT condition has been entered, the work will proceed to complete the 112SX001 A valve replacement. Page 1 of 2

ATTACHMENT 5 Summary of Regulatory Commitments COMMITMENT TYPE COMMITTED DATE OR ONE-TIME COMMITMENT PROGRAMMATIC "OUTAGE" ACTION ACTION (Yes/No) (YeslNo) OP-AA-108-117, "Protected Equipment Program," will be Required to be implemented at Byron Station by implemented prior to Yes No the start of the B2R15 refueling Byron Unit 2 B2R15 outage when the 112SX001 A valve refueling outage. replacement is scheduled. Any planned or emergent changes to the analyzed configuration will be evaluated for impact to determine if Upon implementation of there is any significant impact on the one-time extension Yes No internal events and fire PRA risk of the SX train insights to confirm that appropriate Completion Time. risk management actions have been defined and implemented. Page 2 of 2}}