ML20118D180
| ML20118D180 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 04/27/2020 |
| From: | Xcel Energy, Northern States Power Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| MML20118D173 | List: |
| References | |
| L-PI-20-016 | |
| Download: ML20118D180 (6) | |
Text
ENCLOSURE 1 INFORMATION REGARDING CHANGES TO THE USAR 1
Changes made to the Updated Safety Analysis Report (USAR) are identified in the following list by their input numbers (with which side-barred changes are denoted). Note that USAR Input Numbers can be searched on the USAR, Enclosure 2, to locate each change.
USAR Input No.
Revised Section Basis Description 604000000021 Appendix I 50.59 Screening 5401, Rev. 0 This change reflects Engineering Change 6DOC00026697 which issued various calculations related to the HELB Reconstitution Project.
604000000030 10 50.59 Screening 5387, Rev. 0 This change reflects Engineering Change 6DOC00021909, Design Basis Accident Heat-up Analyses for the Turbine and Auxiliary Buildings.
604000000033 8
50.59 Screening 5236, Rev. 1 This change reflects a Unit 1 and Unit 2 NFPA 805 modification to provide separate electrical feeds from the 4.16 kV Cooling Tower Substation Bus to the 4.16 kV ESF Buses performed under Engineering Change 6MOD00025120.
604000000052 2
50.59 Evaluation 4381, Rev. 0, 50.59 Applicability Determination 2747, Rev. 1 As the result of the most recent periodic chemical survey and Control Room Habitability analysis, the text of Section 2.9.4 was clarified and the new chemicals considered were added to Table 2.9-1, CONTROL ROOM HABITABILITY TOXIC CHEMICALS.
604000000062 1, 10, 11, 12 50.59 Screening 5360, Rev. 2 This change reflects the Unit 1 Generator Replacement performed under Engineering Change 6DOC00020536.
604000000130 12 50.59 Screening 5197, Rev. 0 This change reflects the cooling tower refurbishment performed under Engineering Change 601000000064. (See also USAR change 604000000209) 604000000151 14 50.59 Evaluation 1140, Rev. 0, 50.59 Screening 5130, Rev. 0, 50.59 Screening 5131, Rev. 0 This change added a footnote regarding the time delay for OPT and OTT resulting from reactor trip relay replacement by Engineering Changes 6EQVENG26249 and 6EQVENG26250.
ENCLOSURE 1 INFORMATION REGARDING CHANGES TO THE USAR 2
USAR Input No.
Revised Section Basis Description 604000000164 Table 4.1-8 50.59 Screening 5522, Rev. 0 This change reflects Westinghouse analyses related to thermal fatigue of the Reactor Coolant Pump support feet.
604000000173 6
Inconsequential This change corrects errors identified in CAP 501000016700 related to Engineered Safety Feature actuation reportability requirements.
604000000174 8
50.59 Evaluation 1142, Rev. 0, 50.59 Screening 5480, Rev. 0 This change reflects Engineering Change 601000000058 which revised the D5 & D6 protective trips.
604000000181 14 50.59 Evaluation 1144, Rev. 0, 50.59 Screening 5555, Rev. 0 This change reflects an updated Ejected Rod Analysis to allow for lower gadolinia enrichments.
604000000185 3, 10, 14 50.59 Evaluation 1128, Rev. 0, 50.59 Screening 5162, Rev. 0 This change reflects Engineering Change 601000000338 for replacement of spent fuel assemblies in the Unit 1 or Unit 2 reactor with fresh fuel of the Westinghouse 422 Vantage Plus (422V+) design.
604000000186 10 50.59 Applicability Determination 3559 Rev. 2, 50.59 Screening 5526 Rev. 3, 50.59 Evaluation 1143 Rev. 0 This change reflects Engineering Change 6DOC00026719 by including discussion of the Auxiliary Feedwater Pump Room Unit Coolers as the credited means of controlling room temperature. Discussion of the Safeguards Chilled Water System is also updated to include results of the HELB Reconstitution Project analyses.
604000000189 5
50.59 Screening 5546, Rev. 0 This revision results from Engineering Change 601000000099 which downgraded 2 of 4 Containment Dome Recirculation Fans.
604000000190 12 NRC SER dated 5/1/2018 This change reflects License Amendments 225 and 212 regarding changes to special heavy lifting device nondestructive examination frequency.
604000000191 12 NRC SER dated 9/13/2002 This change replaces reference to TS Section 4.19 with reference to the Heavy Loads Program.
ENCLOSURE 1 INFORMATION REGARDING CHANGES TO THE USAR 3
USAR Input No.
Revised Section Basis Description 604000000193 1, 7, 8, 10 License Amendments 220/207, 50.59 Applicability Determination 3475, Rev. 0 This change reflects the Prairie Island Fire Protection Program transition to NFPA 805.
604000000205 12 50.59 Applicability Determination 3588, Rev. 0 This editorial change clarifies the basis for Table 12.2-1, Classification of Structures, Systems and Components.
604000000207 13 Editorial This change replaces reference to Sec XI for IST with reference to ASME OM Code, as required by 10 CFR 50.55a(f).
604000000209 12 50.59 Screening 5535, Rev. 0 This change reflects the cooling tower refurbishment performed under Engineering Changes 601000000824 and 601000000064. (See also USAR change 604000000130) 604000000210 8
50.59 Screening 5518, Rev. 0 This editorial change is a clarification of maintenance practices for the safety related batteries.
604000000211 Appendix L 50.59 Applicability Determination 3594, Rev. 0 This reflects an editorial change made to Commitment 34 in Appendix L.
604000000215 1
Inconsequential This change corrects an error regarding the date on which the AEC GDC was published.
604000000220 14 Inconsequential This reflects a change to an incorrect reference.
604000000221 10 50.59 Screening 5525, Rev. 0 This change reflects the abandonment of the Control Room Humidifiers.
604000000230 6
50.59 Screening 5557, Rev. 0 This change reflects the newly calculated minimum RHR pumps NPSH in in the event of a LOCA per calculation ENG-ME-005 by Engineering Change 601000000913.
604000000272 2
Editorial - 50.59 Applicability Determination 6025, Rev. 0 Figure 2.3-1A Climate of Prairie Island Site Region was revised. The legend was reformatted for clarity and the maximum and minimum temperatures observed during the stated time period were added.
ENCLOSURE 1 INFORMATION REGARDING CHANGES TO THE USAR 4
USAR Input No.
Revised Section Basis Description 604000000315 10 50.59 Applicability Determination 6437, Rev 0.
This revision reflects that IST testing requirements changed in 1990 when IST went under the ASME OM Code instead of Section XI.
604000000316 6
50.59 Applicability Determination 6526, Rev. 0 This change revises a USAR statement on testing the ECCS system that conflicts with the current plan to perform accumulator valve testing in the upcoming 2R31 Outage.
604000000317 13 License Amendment 158/149 -
Conversion to ITS This editorial change clarifies the information presented in the Technical Requirements Manual based on License Amendments 158 & 149.
604000000320 Appendix I NRC SER dated 11/26/1986, 50.59 Screenings 5165, Rev. 0, 5401, Rev. 0, 5526, Rev. 3, 5616, Rev. 1, 5639, Rev. 0 This change reflects completion of the High Energy Line Break Reconstitution Project.
604000000327 8
50.59 Screening 5577, Rev. 0 This change reflects current plant configuration for the Instrument Air Compressor time delay.
604000000331 10 Inconsequential This change reflects actual Letdown Filter usage, correcting inconsistencies with other USAR sections.
604000000332 Appendix I 50.59 Screening 5600, Rev. 0 This change adds two portable battery room cooling fans to the HELB Required Equipment List.
604000000335 10 50.59 Screening 5162, Rev. 0 This change corrects the required amount of boric acid needed for Mode 5, Cold Shutdown.
604000000341 10 50.59 Screening 5623, Rev. 0 This change deletes a sentence related to heat tracing that provides excessive detail.
604000000342 10 50.59 Screening 5593, Rev. 0 This change reflects the new core offload window analysis and SFP high temperature alarm setpoint change.
ENCLOSURE 1 INFORMATION REGARDING CHANGES TO THE USAR 5
USAR Input No.
Revised Section Basis Description 604000000344 1, 6, 11, 12 License Amendments 226/214, 50.59 Applicability Determination 6562, Rev. 0 This change removes embedded surveillance frequency information and/or clarifies that surveillance frequency is contained in the STI.
604000000345 4
NRC SER dated 7/3/2019, 50.59 Applicability Determination AD 6418, Rev. 0 This revision reflects a change in the Reactor Vessel Surveillance Capsule removal schedule.
604000000346 10 50.59 Screening 5601, Rev. 0 This change updates the description of the sampling system to align with the new capability to inject lithium hydroxide 604000000351 Appendix L 50.59 Applicability Determination 6373, Rev. 0 This editorial change adds references to the License Renewal commitment table.
604000000352 14 50.59 Applicability Determination 6222, Rev. 0 Table 14.5-1 is updated with the correct dispersion factor from revised calculation GEN-PI-049, Rev. 0B. Table 14.5-13 is updated to correct typographical errors.
604000000354 9
50.59 Screening 5608, Rev. 0 This update reflects a new flow path as per Engineering Change 601000000822, NFPA 805 - Remove power to MV-32061 &
32063.
604000000355 1
License Amendments 229/217, 11/7/2019 This revision reflects a change to the definition of "a substantial amount of radioactivity".
604000000358 10 50.59 Screening 5620, Rev. 0 This change reflects the use of the Chemical Mixing Tank for boric acid addition to the suction of the Charging Pumps.
604000000361 10 50.59 Screening 5604, Rev. 0 This change reflects a modification to RHR piping to allow the RHR pumps to drive a portion of the RHR flow to the CVCS letdown path for cleanup in Modes 5, 6, and Defuled, as per Engineering Change 601000001105.
ENCLOSURE 1 INFORMATION REGARDING CHANGES TO THE USAR 6
USAR Input No.
Revised Section Basis Description 604000000363 14 50.59 Evaluation 1151, Rev. 0, 50.59 Screening 5590, Rev. 0, 50.59 Screening 5597, Rev. 0 This change updates Post-Accident Dose Consequences following revision to several post-accident dose consequence calculations per EC 601000001267.
604000000372 USAR INDEX Editorial This changes the USAR Index for consistency between the USAR LEFF &
Index and the ISFSI SAR LEFF & Index.
604000000380 6
50.59 Screening 5616, Rev. 1 This change reflects the revised Non-HELB Auxiliary Building internal flooding analysis performed in ENG-ME-448, Rev. 2 as per Engineering Change 6DOC00026720.
604000000392 11, 12 50.59 Evaluation 1153, Rev. 0, 50.59 Screening 5634, Rev. 0 This change adds discussion of Engineering Evaluation 608000000422 to determine the impact of increasing the time intervals between turbine valve testing.
604000000412 LEFF Inconsequential This editorial change corrects various List of Effective Pages (LEFF) page group section revision numbers.
604000000422 Appendix D 50.59 Screening 5627, Rev. 0 This update is to incorporate the lithium regime change from 3.5 ppm target to 4.0 ppm target as per Engineering Change 601000001607, 2R31 Core Reload IFBA/GAD.
604000000430 Appendix L 50.59 Applicability Determination 6810, Rev. 0, NUREG-1960 SER &
Supplement This change corrects an error and an omission identified during the 2019 License Renewal Phase 4 Inspection FSA. It adds that the Buried Piping and Tanks Inspection Program uses quantitative instead of qualitative risk assessment to select piping locations for inspection, and also adds that the Internal Surfaces Program will use enhanced visual and Ultrasonic inspection for stress-corrosion cracking. These changes align with docketed correspondence in letters L-Pl-10-109 and L-Pl-08-098.