Document: NUREG-0800
Document ID: d4d35b7c-b4e5-4cb4-8dd9-1b7edddf0ad6
Document Type: srp
Title: CHEMICAL AND VOLUME CONTROL SYSTEM (PWR) (INCLUDING BORON
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070537.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.4
CFR Part: 
CFR Title: 

Content:
met are acceptable (CP). 4. Using the results of evaluations performed by CPBSRXB , the CMEBEMCB 52 53 verifies the adequacy of the system for reactivity control in the following areas: a. Boration of the reactor coolant system is accomplished through either of two flow paths and from either of two boric acid sources, and CVCS meets PWR boration technical specifications. This is verified from the review of P&IDs and system description. b. The amount of boric acid stored in the CVCS exceeds the amount required to borate the reactor coolant system to cold shutdown concentration, assuming that the control assembly with the highest reactivity worth is held in the fully withdrawn position, and to compensate for subsequent xenon decay during any part of core life. This is verified by coordinating with the CPB SRXB . 54 5. 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 CVCS can meet PWR reactor coolant system water chemistry technical specifications. The reviewer verifies that primary water chemistry controls and specifications provide for compatibility with materials to be exposed to reactor coolant under the expected service conditions. The reviewer evaluates the proposed chemistry controls and specifications with respect to those described in EPRI NP-7077, "PWR Primary Water Chemistry Guidelines," (Reference 21) as supplemented by the following guidelines for the makeup water storage tank: Conductivity at 25 C 0.2 S/cm (max) Oxygen 0.100 ppm (max) Chloride 0.15 ppm (max) Fluoride 0.15 ppm (max) Suspended solids* 1.0 ppm (max) *Solids concentration is determined by filtration through a filter having a 0.45-micrometer (micron) pore size.55 DRAFT Rev. 3 - April 1996 9.3.4-12 6. The adequacy of resin over-temperature protection is verified