Document: NUREG-0800
Document ID: 78387a51-7717-4e68-94e8-2922e603e6b5
Document Type: srp
Title: DEMINERALIZED WATER MAKEUP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350547.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.3
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Auxiliary Systems Branch (ASB) Secondary - None I. AREAS OF REVIEW The ASB reviews the demineralized water makeup system (DWMS) from the supply con- nection of the service or municipal water source to the points of discharge. The capability to provide an adequate supply of treated water of reactor coolant purity to other systems as makeup, and to provide other plant demineralized water require- ments is reviewed. The design of the DWMS is generally not safety related; the review is primarily directed toward assuring that a failure or malfunction of the system could not adversely affect essential systems requirements in accordance with General Design Criteria (GDC) 2 and 5. 1. The ASB review of the DWMS system includes the following considerations: a. Capability of the system to effectively store, handle, and dispense all chemicals utilized in the demineralizing and regeneration process. b. Capability of the DWMS to operate within the environment to which it is exposed. c. Provisions for the regeneration wastes to be directed to a suitable point in the radwaste system or other specified areas for subsequent processing prior to discharge to the environment and instrumentation and isolation capabilities provided, including the ability to detect corrosive solu- tions and the valving necessary to isolate the system. 2. The ASB reviews the system function relative to other safety-related systems to determine whether portions of the system are safety related and to deter- mine whether a seismic Category I makeup source is required. Rev. 2 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to the public as part of the Commission's policy to inform the nuclear industry and the general public of regulatory procedures and policies.