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Attachment 6 - GEH Morris CSAR Rev 15 (Feb 2021), 10 CFR 72.48 Evaluation and Revision Summaries
	ML21057A123
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Site:	07200001
Issue date:	02/26/2021
From:	; GE Hitachi Nuclear Energy
To:	; Office of Nuclear Material Safety and Safeguards
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M210020 US NRC 2/26/21 Attachment 6 GEH Morris CSAR Rev 15 (Feb 2021), 10 CFR 72.48 Evaluation and Revision Summaries

Morris Operation Employees Only

HITACHI Uorrls OpfftfJon Instruction MOI-430 72.48 Applicability Analysis for Changes, Tests, Experiments Review Number: SC-2021-48-01

Description of Activity:

Revise MO CSAR NED0-21326 (mvls/on 15). CSAR update in alignment with re-licenslng activities.

Does this activity:

Yes No Require an amendment to the license. SNM-2800. due to a change In technical X speclflcaUona?

Result In more than a mlnlmallncreaseln the frequency of occunence of an X accident prevlowsly evaluated In the CSAR?

Result In more than a minimal increase In the likelihood of occurrence of a X malfunction of a ayatam. structure. or component (SSC) Important to safety previouslY evaluated In the CSAR?

Result In more than a minimal Increase In the consequences of an accident X pravloualy evaluated In the CSAR?

X Result In more than a mlnlrnallncreaae In the consequences of a malfunction of an SSC Important to safety previously evaluated In the CSAR?

X Create a possibility for an accident of a different type than any previously evaluated in the CSAR?

Create a poaalblllty for a malfunction of an sse Important to safety with a different X result than the previously evaluated In tbe CSAR?

X Result In a design baala limit for fla1lon product banier aa de1cribad In the CSAR baing exceeded or altered?

Result In a departure from a method of evaluation described In the CSAR used In X establishing the design basal or In the aafaty analyses?

A VES response to any of ths que11fons In the list will require an amendment to the license, SNM-2500 and NRC approval prior to Implementation.

If all responses are flA written recorda shall be produced which provide ths baala for the detennlnatlon that the change. test. or experiment doas not require a license amendment.

Changes and evaluation summaries ahall be reported to the NRC every two years.

Prepared by: F. C. Partney

Title:

OMC Date: 212312021 Satet, CommlltH Approval (~~qllirtd II Myaf the lbcMI quttllonsarellniWettd'-::YII~}~~----

Note: Additional pagn may 1te attached to provide apecltlc lnfonnalfon required to addrne an, of the above quntlona

Morris Operation Employees Only

( . HITACHI Morris Operation Instruction MOI-430 72.48 Applicability Analysis for Changes, Tests, Experiments Review Number: SC-2021-48-01

Description of Activity:

Revise MO CSAR NED0-21326 (revision 15). CSAR update in alignment with re-licensing activities.

uNO" Justification Sections 1-11 and Appendices A-1 through A-17 were updated for revision 15 of the MO CSAR.

In general, the updates reflect administrative changes such as updated local business names and population density data. There are many instances of formatting changes and header/footer updates.

Occasionally language was added to clarify previous claims and/or justifications. But in no instance is there a change to tests, processes, or monitoring requirements that are not conservative or essentially the same. And in no instance is there an increase of the likelihood of an event that reduces the safety of the facility or impacts the design basis for the safety evaluation.

DOCUMENT REVISION

SUMMARY

CSAR Rev 15, Section 1 SECTION(S)

REV. REVISION DESCRIPTION DATE AUTHOR MODIFIED Removed statement "Special procedures and isolation can be provided for storage of 15 1.1 2/23/21 AEM damaged or leaking fuel." Fuel has been stable for 40+ years.

Changed location of GE Corporate to New York, 2/23/21 15 1.1.1 AEM and principal place of business to Boston, MA 15 1.1.1 Removed consumer products 2/23/21 AEM Changed Commonwealth Edison Company 2/23/21 15 1.1.2 AEM (CECa) to Exelon Generation Company, LLC 15 1.1.2 Changed State Park to Natural Area 2/23/21 AEM 15 1.1.2 Added "privately-owned" to open land 2/23/21 AEM 15 1.1.2 Added Note for clarification on OCA 2/23/21 AEM Removed "Water transportation access via the 2/23/21 Illinois River is available through an agreement 15 1.2.1 with CECa, but no docking facility is AEM developed."; Revised access condition for rail transportation service Updated severe weather condition numbers to 2/23/21 15 1.2.1.1 AEM more current timeframe.

15 1.2.1.5 Updated east property boundary distance 2/23/21 AEM 15 1.2.1.5(a) Added additional chemical plant (Aeropres) 2/23/21 AEM 15 1.2.1.5(b) Updated populations 2/23/21 AEM 15 1.2.1.5(c) Changed State Park to Natural Area 2/23/21 AEM 15 1.2.1.6 Added land sale from 2013 2/23/21 AEM 15 1.4.6 Removed "crane operation" from principal loads 2/23/21 AEM 15 1.8 Added definitions 2/23/21 AEM

DOCUMENT REVISION

SUMMARY

CSAR Rev 15, Section 2 SECTION(S)

REV. REVISION DESCRIPTION DATE AUTHOR MODIFIED 15 2.0 Updated Header & Footer 2/23/21 AEM

DOCUMENT REVISION

SUMMARY

CSAR Rev 15, Section 3 SECTION(S)

REV. REVISION DESCRIPTION DATE AUTHOR MODIFIED 15 All Changed State Park to Natural Area 2/23/21 AEM 15 3.2.2.1 Added E. Collins Rd 2/23/21 AEM Changed Commonwealth Edison Company 2/23/21 15 3.2.2.1 AEM (CECa) to Exelon Generation Company, LLC 15 3.2.2.1 Changed description for south boundary 2/23/21 AEM 15 3.2.2.1 Removed rail 2/23/21 AEM 15 3.2.2.2 Added land sale from 2013 2/23/21 AEM 15 3.2.2.2 Added solar project land lease 2/23/21 AEM Changed Commonwealth Edison Company 2/23/21 15 3.2.2.3 AEM (CECa) to Exelon Generation Company, LLC 15 3.2.2.3 Added solar project land lease 2/23/21 AEM 15 3.2.3 Changed CECa to Exelon 2/23/21 AEM 15 3.2.3.1 Updated populations 2/23/21 AEM 15 3.2.3.2 Updated populations 2/23/21 AEM Added information about DNPS transient 2/23/21 15 3.2.3.3 AEM population 15 3.2.4 Updated Nearby Land & Water use 2/23/21 AEM 15 3.2.4.1 Changed CECa to Exelon 2/23/21 AEM 15 3.2.4.1 Updated industrial facilities close to site 2/23/21 AEM 15 3.2.4.2 Updated populations 2/23/21 AEM 15 Table 3-1 Updated populations 2/23/21 AEM 15 3.2.4.5 Changed CECa to Exelon 2/23/21 AEM 15 3.2.4.5 Deleted Waterway access through DNPS 2/23/21 AEM 15 Table 3-3 Updated Facilities 2/23/21 AEM 15 3.4.1.3 Updated period; added recent events 2/23/21 AEM 15 3.5.1 Changed CECa to Exelon 2/23/21 AEM 15 3.10 Updated Ref #5 & 8 2/23/21 AEM

DOCUMENT REVISION

SUMMARY

CSAR Rev 15, Section 4 SECTION(S)

REV. REVISION DESCRIPTION DATE AUTHOR MODIFIED 15 4.1.1 Updated cooling period 2/23/21 AEM 15 4.1.2 Clarification for bounding Tables 4-1 and 4-2 2/23/21 AEM

DOCUMENT REVISION

SUMMARY

CSAR Rev 15, Section 5 SECTION(S)

REV. REVISION DESCRIPTION DATE AUTHOR MODIFIED Added ASTM A262, Practice C; Revised 2/23/21 "reduced by a factor of more than 1,000" to "significantly lower; Revised corrosion rate to "The data measured on the Morris basin liner 15 5.5.1.3 shows a depth of penetration of 0.4 mils over a AEM 20-year period. Using this corrosion rate, for the thinnest (upper basin wall) liner, a 50%

reduction in thickness from "one-side" corrosion at such a rate would require 18,000 months."

15 5.5.1.4 Changed "back of the liner" to "behind the liner" 2/23/21 AEM 15 5.5.2.2 Updated to more current data. 2/23/21 AEM 15 Table 5-1 Updated to more current data 2/23/21 AEM 15 5.5.4.4 Deleted statement for spray ring 2/23/21 AEM Section removed in Rev 09, re-added for 2/23/21 15 5.5.5.3 AEM clarification Updated examples of systems controlled from 2/23/21 15 5.5.5.4 AEM Control Room to reflect current ops 15 Table 5-2 Updated to reflect current operations 2/23/21 AEM 15 5.7.1 Changed "room" to "area" 2/23/21 AEM 15 5.7.1.1 Changed "room" to "area" 2/23/21 AEM 15 5.8.5 Updated the owner of the rail service 2/23/21 AEM

DOCUMENT REVISION

SUMMARY

CSAR Rev 15, Section 6 SECTION(S)

REV. REVISION DESCRIPTION DATE AUTHOR MODIFIED 15 6.0 Updated Header/Footer 2/23/21 AEM

DOCUMENT REVISION

SUMMARY

CSAR Rev 15, App A-17 SECTION(S)

REV. REVISION DESCRIPTION DATE AUTHOR MODIFIED New Appendix added (A.17) Radiation Monitor 15 A.17 2/23/21 AEM Locations (Revised)

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