Document: NRC Regulatory Guide
Document ID: 96baa826-d3bb-478b-8f38-e74500f6d433
Document Type: regulatory_guide
Title: 06/2009 (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0911/ML091170109.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.21
CFR Part: 
CFR Title: 

Content:
9-01, “Implementation of Programmatic and Procedural Controls for Radiological Effluent Technical Specifications,” (Ref. 11) dated January 31, 1989, and approved by the NRC. 1.2 Release Points for Effluent Monitoring The ODCM should identify the facility’s significant release points (see glossary) used to quantify liquid and gaseous effluents discharged to the unrestricted area. For those release points containing contributions from two or more inputs (or systems), it is preferable to monitor each major input (or system) individually to avoid dilution effects, which may impede or prevent radionuclide identification. NUREG- 1301 and NUREG-1302 contain detailed guidance for the content and format of a licensee’s ODCM. For purposes of effluent and direct radiation monitoring, the ODCM should list and/or describe the following: 1. Significant release points include stacks, vents, and liquid radioactive waste discharge points, among others. 2. Other release points should be listed in the ODCM if they are not normally classified as one of the significant release points but could become a significant release point based on expected operational occurrences (e.g., primary to secondary leakage for PWRs or failed fuel). This list does not need to be exhaustive or all-inclusive but instead should demonstrate that the licensee has reasonably anticipated expected operational occurrences and their effects on radioactive discharges. Examples may include main steam line safety valves, steam-driven feedwater pumps, turbine building sumps, containment ice condensers, leachate seepage from unlined ponds, or evaporative releases from ponds in the restricted or controlled areas. 3. The site environs map should show the following: a. significant release points, b. boundaries of the restricted area and the controlled area (per 10 CFR Part 20 definitions), c. boundary of the unrestricted area for liquid effluents (e.g., at the end of the pipe or entrance to a public waterway), and