IN-REACTOR MEASUREMENTS INVOLVING ELECTROCHEMICAL POTENTIAL A NUMBER OF BOILING WATER REACTORS (BWRS) SUGGEST THAT THE WATER CHEMISTRY OF THE PRIMARY COOLANT OF EACH BWR MAY BE UNIQUE WITH RESPECT TO ITS ABILITY TO FACILITATE IGSCC AND/ OR MAY CHANGE

IN-REACTOR MEASUREMENTS INVOLVING ELECTROCHEMICAL POTENTIAL A NUMBER OF BOILING WATER REACTORS (BWRS) SUGGEST THAT THE WATER CHEMISTRY OF THE PRIMARY COOLANT OF EACH BWR MAY BE UNIQUE WITH RESPECT TO ITS ABILITY TO FACILITATE IGSCC AND/ OR MAY CHANGE WITH REACTOR OPERATING TIME OR AGE. THE WORK PROPOSED IS TO GATHER, REVIEW, ORGANIZE, COMPILE, C COMPUTERIZE, AND ANALYZE IN-REACTOR DATA PERTAINING TO THE POTENTIAL UNIQUENESS OF BWR WATER CHEMISTRY. THE DESIRED GOAL IS TO DETERMINE IF BWR WATER CHEMISTRY IS SUFFICIENTLY UNIQUE AND OR TIME-DEPENDENT TO AFFECT NRC POLICY OR REG REGULATORY DECISIONS AND WHETHER FURTHER INVESTIGATION BY THNRC IS WARRANTED. ICULARY USEFUL FOR THE TRHOUGH WALL SIZING OF PLANAR