Document: NUREG-0800
Document ID: 66e7af3b-21c0-444f-8737-0830bb176eba
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING INSTRUMENTATION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1502/ML15029A182.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
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Content:
quid and gaseous effluent discharges and external radiation from site buildings and facilities (with single or multiple reactor units). The guidance has been expanded in evaluating compliance with the standards for sites that have site-specific information on the locations of offsite dose receptors and those that do not. 8. Clarifications for sites with applicants and licensees operating two or more reactors, the staff’s review would confirm that applicant and licensee include in their respective ODCM a process for notifying the other licensee on the same site to ensure that, when combined, effluent concentrations and offsite dose limits of 10 CFR Part 20 are not exceeded. The notification process would include the means by which releases of liquid and gaseous effluents can be coordinated and controlled such that all licensees on the site are jointly aware of routine and planned releases, including those associated with AOOs as they occur. 9. Additional clarification is provided on the use of automatic control features and placement of isolation valves and dampers and radiation detectors on process piping, ductwork, and effluent vents and stacks to ensure their timely closure upon the detection of elevated radioactivity levels, and, if part of the design, controls in monitoring deviations in exhaust flow rates in terminating releases or isolating process flows when deviations exceed preset limits. Other considerations include determining whether system logic demands that a valve or damper 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 systems. 10. Clarification on guidance in reviewing proposed technical resolution of USIs and medium- and high-priority GSIs identified in the version of NUREG-0933 current on the date 6 months before the submission of the application as technically relevant to the design; how operating