Document: NUREG-0800
Document ID: 25e52c07-8f43-4a33-a908-01ec9eb02d06
Document Type: srp
Title: LIQUID WASTE MANAGEMENT SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1304/ML13044A644.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
CFR Part: 
CFR Title: 

Content:
hether system logic demands that a valve or damper should fail in the closed position in protecting the system from further contamination, terminating releases to the environment, or diverting process streams or effluents to appropriate treatment subsystems. Acceptable guidance is presented in SRP Section 11.5 and ANS N42.18-2004. 5. The design of exhaust ventilation subsystems used to collect and vent radioactive gases and vapors from tanks, vessels, and processing equipment should use the guidance of SRP Sections 9.4, 11.3, and 11.5, RGs 1.140 and 1.143, and industry standards. The guidance addresses the design, testing, maintenance, and monitoring of HEPA filters and charcoal absorbers installed in ventilation exhaust systems. 6. For an ESP application, the dose estimates to a hypothetical maximally exposed member of the public from liquid effluents using radiological exposure models are developed based on RGs 1.109, 1.112, and 1.113, and appropriate computer codes, such as the LADTAP II computer code (NUREG/CR-4013) for liquid effluents. The relevant guidance (RG, ISG, and BTP) is as follows: 1. RG 1.109, as it relates to the use of acceptable methods for calculating annual doses to the maximally exposed individual in demonstrating compliance with 10 CFR Part 50, Appendix I dose objectives and ALARA provisions. 2. RG 1.110, as it relates to performing a cost-benefit analysis for reducing cumulative dose to the population by using available technology. 3. RG 1.112, as it relates to the use of acceptable methods for calculating annual average releases of radioactive materials in liquid effluents. 4. RG 1.113, as it relates to the use of acceptable methods for estimating aquatic dispersion and transport of liquid effluents in demonstrating compliance with 10 CFR Part 50, Appendix I dose objectives. 5. RG 1.143, as it relates to QA provisions for radioactive waste management systems, structures and components including LWMS subsystems and components not covered by