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 implementation procedures. SRP BTP 7-10 (see SRP Section 7.5) provides additional guidance on the application of Regulatory Guide 1.97. Provisions for the following should be included: A. Purging sample lines B. Minimizing sample loss or distortion in sample chemical and physical composition C. Preventing blockage of sample lines D. Appropriate disposal of samples E. Flow restrictions or remotely operated isolation valves to limit reactor coolant loss from rupture of sample lines The following conditions also apply: F. Samples be representative of reactor primary coolant, reactor steam, secondary coolant, and secondary steam in the core area or system sample streams. G. Sample lines should be as short as possible to minimize the volume of fluid taken from containment process or effluent streams. H. If inline monitoring is used, the licensee must provide backup provisions for grab sampling. If the provisions do not address post-accident sampling, refer instead to the “Notice of Availability for Referencing in License Amendment Applications Model Safety Evaluation on Technical Specification Improvement to Eliminate Requirements on Post Accident Sampling Systems Using the Consolidated Line Item Improvement Process.” Under this notice, the applicant must do the following: A. Maintain contingency plans for obtaining and analyzing highly radioactive samples of reactor coolant, containment sump, and containment atmosphere. B. Maintain a capability for classifying fuel damage events at the Alert Level threshold (typically at the 300 microcuries per milliliter (uCi/mL) iodine dose equivalent). C. Maintain the capability to monitor radioiodines that have been released to offsite environs. 8. 10 CFR 20.1301(e) requires that facilities licensed by the U.S. Nuclear Regulatory Commission comply with the U.S. Environmental Protection Agency’s (EPA) generally applicable environmental radiation standards of 40 CFR Part 190 for facilities that are part of the fuel cycle.