Document: NUREG-0800
Document ID: ae3a3dbc-a317-4493-a09c-c4fb244194bd
Document Type: srp
Title: Revision 3 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0708/ML070850019.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5
CFR Part: 
CFR Title: 

Content:
lear Regulatory Commission, Washington, DC 20555, Attention: Reproduction and Distribution Services Section, or by fax to (301) 415-2289; or by email to DISTRIBUTION@nrc.gov. Electronic copies of this section are available through the NRC's public Web site at http://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr0800/, or in the NRC's Agencywide Documents Access and Management System (ADAMS), at http://www.nrc.gov/reading-rm/adams.html, under Accession # ML070850019. NUREG-0800 U.S. NUCLEAR REGULATORY COMMISSION STANDARD REVIEW PLAN BRANCH TECHNICAL POSITION 5-1 MONITORING OF SECONDARY SIDE WATER CHEMISTRY IN PWR STEAM GENERATORS REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of component integrity issues related to steam generator tubes Secondary - None A. BACKGROUND Effective long-term reliable operation of pressurized-water reactor (PWR) steam generators requires that the design and operation of the steam generator are such that the barrier between the primary and secondary fluids maintains its integrity under operating (including design-basis accidents), maintenance, and testing conditions, as stated in GDC 1, 4, 14, 15, 30, and 31 of Appendix A to 10 CFR Part 50. To provide assurance that these requirements are met, various measures have been taken, including (1) treating the secondary side water to remove impurities, (2) implementing operating procedures for removing accumulated corrosion products (including sludge and deposits) and other insoluble impurities and chemical contaminants from the steam generators, (3) designing SSCs to prevent impurities from entering the steam generator with makeup water, and (4) designing the steam generator to prevent the impurities from concentrating and forming sludges or deposits, especially in crevices. BTP 5-1-2 Revision 3 - March 2007 Less than thoroughly effective water treatment, operational procedures, and design factors have led to the degradation of steam generator tubing, as