Document: NUREG-0800
Document ID: ba7b8f31-872f-4ab8-bdf8-7be885afd4b6
Document Type: srp
Title: LIQUID WASTE MANAGEMENT SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1502/ML15029A032.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
CFR Part: 
CFR Title: 

Content:
ality Group Classification.” 9. The review of radiation monitoring instrumentation and controls used by the LWMS, including provisions for automatic control features and interdependence with sensing elements other than radioactivity (e.g., fluid level, valve position, system pressure, flow rate, and temperature), is performed using the guidance presented in SRP Sections 11.5 and 9.3.2, “Process and Post-accident Sampling Systems.” The review addresses the types and placement of such sensors in plant subsystems, basis of operational ranges, and qualification of sensing elements in supporting the functions of radiation monitoring subsystems. The review considers functional interdependence and logic in alarming, terminating, and/or diverting process or effluent streams to comply with the dose and effluent concentration limits under 10 CFR Part 20 and design objectives of Appendix I to 10 CFR Part 50. The review also addresses design features to prevent radioactive contamination of otherwise nonradioactive plant systems in avoiding unmonitored and uncontrolled releases of radioactive materials in the environment using the guidance of RGs 1.143, 4.21, and IE Bulletin 80-10. 10. The review of the demineralized water makeup system is performed using the guidance in SRP Section 9.2.3, “Demineralized Water Makeup System,” as it relates to the supply of seal water to systems and components containing radioactivity and design features to prevent the contamination of nonradioactive systems and avoid unmonitored and uncontrolled releases to the environment. 11. The review of the Chemical and Volume Control System (CVCS) (including Boron Recovery System) is performed using the guidance in SRP Section 9.3.4, as it relates to systems and components containing radioactivity and design features to process CVCS fluid streams prior to recycling or treatment before releasing to the environment. 12. The review of process fluids collected by equipment and floor drains is