Final results of double-shell tank 241-AZ-101 ultrasonic inspection

Abstract

This document presents the results and documentation of the nondestructive ultrasonic examination of tank 241-AZ-101. A tank inspection supplier was retained to provide and use an ultrasonic examination system (equipment, procedures, and inspectors) to scan a limited area of double-shell tank 241-AZ-101 primary tank wall and welds. The inspection found one reportable indication of thinning and no reportable pitting, corrosion, or cracking. Charge Code: 106702/CA40 Total P a g e s : H h Y &.74/.f% TRADEMARK DISC!AIMER. Reference herein to any spclfc sommertial pcdducl, praerr. or IBNice by VBde name. Irademah. maruiactmer. M CUWWiiSe. doer not n-dhr C%3"3lilUlO o (imPk ilS erdOMen1. recommendation. W favwing by vle United Stales Gwmmenl or any agenw thB(e0f rn its mnVsdwO Or IYbmnVBdOn. Printed in the Unled States of m e b. To obtain mpier of vlis daxunent. motati: MMClBCS Dosymenl Contml Services. P.O. Box 1970, Mailst~p H W. Rishlard WA 53352, Phone (509) 372-2420: Fax (509) 3764989. 4-Release mval Dale 7 / u / p P Remas stamp Approved for Public Release Ad4Mo73 (101951 GEF321 Final Results of Double-Shell Tank 241-AZ-101 Ultrasonic Inspection Table of Contents HNF-4819 Rev. 0 3

Engineering Task Plan for the Ultrasonic Inspection of Hanford Double-Shell Tanks - FY 2001

“…Though the end of FY 2000, UT of 8 DSTs had been conducted (Leshikar 1997, Jensen 1999a, Jensen 1999b. Jensen 1999c, Jensen 1999d, Jensen 1999e, Jensen 2000b. In June 2000 the Washington Department of Ecology issued Administrative Orders OONWPKW-1250 and OONWPKW-1251 requiring UT of the remaining 20 DSTs by the end of 2005, at a rate of 4 per year.…”

“…Through the end of FY 2000, ultrasonic examination of eight (8) double-shell tanks had been conducted (Leshikar 1997, Jensen 1999a, Jensen 1999b, Jensen 1999c, Jensen 1999d, Jensen 1999e, Jensen 2000b This ETP is an overall plan for task completion that details the roles and responsibilities of individuals involved in the examination process. Included herein is the plan for engineering activities, performance demonstration testing of the examination equipment, field activities (tank inspection), the equipment support approach to be used, and the 4.…”