Document: NRC Regulatory Guide
Document ID: 42f2dcf0-38ba-4f75-84d4-e60f4bbf9162
Document Type: regulatory_guide
Title: Assessment of Abnormal Radionuclide Discharges in Ground Water to the Unrestricted Area at Nuclear Power Plant Sites Appendix-Simple Ground Water Model for Estimating Offsite Tritium Activity Flux + HISTORY - HISTORY 12/2015 – DG-4025-Proposed New Guide
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1523/ML15237A388.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.25
CFR Part: 
CFR Title: 

Content:
vb U.S. NUCLEAR REGULATORY COMMISSION November 2015 OFFICE OF NUCLEAR REGULATORY RESEARCH Division 4 DRAFT REGULATORY GUIDE Technical Lead Thomas J. Nicholson This regulatory guide is being issued in draft form to involve the public in the development of regulatory guidance in this area. It has not received final staff review or approval and does not represent an NRC final staff position. Public comments are being solicited on this draft guide and its associated regulatory analysis. Comments should be accompanied by appropriate supporting data. Comments may be submitted through the Federal rulemaking Web site, http://www.regulations.gov, by searching for Docket ID <INSERT: NRC-20YY-XXXX>. Alternatively, comments may be submitted to the Rules, Announcements, and Directives Branch, Office of Administration, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001. Comments must be submitted by the date indicated in the Federal Register notice. Electronic copies of this draft regulatory guide, previous versions of this guide, and other recently issued guides are available through the NRC’s public Web site under the Regulatory Guides document collection of the NRC Library at http://www.nrc.gov/reading-rm/doc- collections/reg-guides/. The draft regulatory guide is also available through the NRC’s Agencywide Documents Access and Management System (ADAMS) at http://www.nrc.gov/reading-rm/adams.html, under Accession No. ML15287A388. The regulatory analysis may be found in ADAMS under Accession No. ML15287A385. DRAFT REGULATORY GUIDE DG-4025 (Proposed New Regulatory Guide) ASSESSMENT OF RADIOACTIVE DISCHARGES IN GROUND WATER TO THE UNRESTRICTED AREA AT NUCLEAR POWER PLANT SITES A. INTRODUCTION Purpose This regulatory guide (RG) describes an approach that the U.S. Nuclear Regulatory Commission (NRC) staff considers acceptable for use in assessing abnormal, inadvertent radioactive releases which may result in discharges of contaminated ground water from the subsurface