Document: NUREG-0800
Document ID: 0b529a75-fd6e-4e39-9791-94f199dfcf56
Document Type: srp
Title: CHEMICAL AND VOLUME CONTROL SYSTEM (PWR) (INCLUDING BORON
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0701/ML070160660.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.4
CFR Part: 
CFR Title: 

Content:
ater storage tank (RWST) where applicable, through redundant flow paths, and CVCS meets PWR boration technical specifications. This is verified from the review of P&IDs and system description. ii. The amount of boric acid stored in the CVCS, such as BAST or RWST where applicable, exceeds the amount required to borate the reactor coolant system to cold shutdown concentration, assuming that the control rod assembly with the highest reactivity worth is held in the fully withdrawn position, and to compensate for subsequent xenon decay during any part of core life. E. The adequacy of the CVCS for control of water chemistry is verified by examination of the information provided in the SAR (i.e., the allowable ranges for primary coolant activity, total dissolved solids, pH, and maximum allowable oxygen and halide concentrations and verification that the CVCS can meet industry guidelines and reactor plant supplier recommendations for PWR reactor coolant system water chemistry). The reviewer verifies that the primary water chemistry program provides for compatibility with materials to be exposed to reactor coolant under the expected service conditions. The reviewer evaluates 9.3.4-11 Revision 3 - March 2007 the proposed chemistry program with respect to that described in the latest version in the Electric Power Research Institute (EPRI) report series, “PWR Primary Water Guidelines,” (Ref. 22). F. The adequacy of resin over-temperature protection is verified by reviewing the system description and drawings to determine that temperature sensors are provided that will actuate the demineralizer bypass or isolation valves. Also, verify that instrumentation is available to monitor filter and demineralizer differential pressures. G. The boron thermal regeneration subsystem is reviewed to determine the maximum change in primary coolant boron concentration due to equipment or control errors as determined from failure modes and effects analyses. H. The operating procedures and