Hanford Double-Shell Tank Extent-of-Condition Review - 15498

Conference · Wed Nov 19 00:00:00 EST 2014

OSTI ID:1165302

Johnson, J. M.; Baide, D. D.; Barnes, T. J.; Boomer, K. D.; Gunter, J. R.; Venetz, T. J.

During routine visual inspections of Hanford double-shell waste tank 241-AY-102 (AY-102), anomalies were identified on the annulus floor which resulted in further evaluations. Following a formal leak assessment in October 2012, Washington River Protection Solutions, LLC (WRPS) determined that the primary tank of AY-102 was leaking. A formal leak assessment, documented in RPP-ASMT-53793, Tank 241-AY-102 Leak Assessment Report, identified first-of-a-kind construction difficulties and trial-and-error repairs as major contributing factors to tank failure.1 To determine if improvements in double-shell tank (DST) construction occurred after construction of tank AY-102, a detailed review and evaluation of historical construction records was performed for Hanford’s remaining twenty-seven DSTs. Review involved research of 241 boxes of historical project documentation to better understand the condition of the Hanford DST farms, noting similarities in construction difficulties/issues to tank AY-102. Information gathered provides valuable insight regarding construction difficulties, future tank operations decisions, and guidance of the current tank inspection program. Should new waste storage tanks be constructed in the future, these reviews also provide valuable lessons-learned.

• Research Organization: Hanford Site (HNF), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Environmental Management (EM)
• Contributing Organization: Department of Energy - Office of River Protection, Washington River Protection Solutions
• DOE Contract Number: DE-AC27-08RV14800
• OSTI ID: 1165302
• Report Number(s): TOC-PRES-14-3312-FP Rev 0
• Resource Relation: Conference: Waste Management and NACE Corrosion 2015 03/15/2015 Phoenix, AZ & Dallas, TX
• Country of Publication: United States
• Language: English