Document: NUREG-0800
Document ID: 13fda301-b942-4542-a493-fc1e4c60019b
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070710438.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
CFR Part: 
CFR Title: 

Content:
AND SAMPLING SYSTEMS REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of effectiveness of radwaste systems. Secondary - Organization responsible for the review of instrumentation. I. AREAS OF REVIEW The process and effluent radiological monitoring instrumentation and sampling systems (PERMISS) are used to monitor liquid and gaseous process streams and effluents from the liquid waste management system (LWMS), gaseous waste management system (GWMS), and solid waste management system (SWMS). The PERMISS includes subsystems used to collect process and effluent samples during normal operation and anticipated operational occurrences and under post-accident conditions. The specific areas of review are as follows: 1. The design objectives and criteria for the PERMISS, including the interface with skid- mounted radiation monitoring equipment connected to permanently installed systems. The review identifies the (1) process and effluent streams to be monitored by radiation detection instrumentation or sampled for separate analyses, (2) purpose of each monitoring or sampling function, and (3) parameters to characterize, through monitoring instrumentation or sampling and analysis, radionuclide distributions and concentrations in sampled process and effluent streams (e.g., total gross beta-gamma or alpha activity, radionuclide-specific concentrations, isotopic, total radioactivity level, or groupings of radionuclides). 11.5-2 Revision 4 - March 2007 2. The system description for the PERMISS includes: A. Descriptions of radiation measurement instrumentation and related sampling equipment, including redundancy and independence (where applicable); instrumentation range, calibration, and sensitivity; methods for determining alarm/trip setpoints for activating alarms and terminating effluent releases or isolating processes; bases for in-plant effluent dilution; and diversity of components used for normal operations, anticipated operational occurrences, and