Document: NUREG-0800
Document ID: 8ff38c60-7fce-45a8-a63c-c75b32b18056
Document Type: srp
Title: LIQUID WASTE MANAGEMENT SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070608.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
CFR Part: 
CFR Title: 

Content:
SPLB calculated source term. Compliance with the acceptance criterion given in subsection II.1.b concerning the cost-benefit analysis will be determined based on RAB PERB man-rem dose calculations in conjunction with ETSB SPLB cost-benefit studies.43 2. The ETSB SPLB review of the liquid waste treatment management system design capacity will encompass three major areas: a. The system capability to process wastes in the event of a single major equipment item failure, e.g., an evaporator outage. b. The system capability to accept additional wastes during operations which result in excessive liquid waste generation. c. The system capability to process wastes at design basis fission product leakage levels, i.e., from 1% of the fuel producing power in a PWR or, in a BWR, consistent with a noble gas release of 3.7 MBq/sec/MWt (100 µCi/sec/MWt)44 measured after 30 minutes delay. ETSB SPLB will compare the average input flows towith the design flows to determine 45 the fraction of time individual subsystems must be online to process normal waste inputs. ETSB SPLB will review the operational flexibility designed into the system, i.e., cross connections between subsystems, redundant or reserve processing equipment, and reserve storage capacity. Based on the usage factors and operational flexibilities, ETSB SPLB will evaluate the overall system capability to process wastes in the event of (a), (b), or (c), above, by comparing the design flows towith the potential process routes and equipment capacities. ETSB SPLB will assume evaporators are unavailable for 2 consecutive days per week for maintenance. If two days holdup capacity or an alternative evaporator are not available for the process stream, ETSB SPLB will assume the stream is processed by an alternate route or discharged to the environment, consistent with the guidelines of NUREG-0016 and NUREG-0017. 3. ETSB SPLB compares the seismic and quality group classification for radwaste management systems with the guidelines