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The Significant Results of Two Unexpected Corrosion Failures

This paper describes two significant unexpected corrosion failures of Las Virgenes Municipal Water District (MWD) facilities. The Las Virgenes MWD serves an area of 316 sq km (122 sq mi) in the western portion of Los Angeles County. The first failure was a 61-cm (24-in.) influent force main at a wastewater treatment plant from "grooving corrosion." The second failure was of a 20.3-cm (8-in.) sludge force main from "microbiological induced corrosion." In each case the failures were completely unexpected and resulted in significant damage and expense. The history of the facilities, failure mode, resulting damage, repair strategies and lessons learned are discussed. This paper is intended to illustrate how unexpected corrosion failures can result in significant damage and expense. The focus is from the viewpoint of an owner/operator rather than a corrosion engineer, and addresses the need for owners and operators to understand the potential of unexpected corrosion failures and their impacts.

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos;
  • Pagination: 9p
  • Monograph Title: Pipeline Engineering and Construction: What's on the Horizon? Proceedings of the Pipelines 2004 International Conference, August 1-4, 2004, San Diego, California

Subject/Index Terms

Filing Info

  • Accession Number: 01003228
  • Record Type: Publication
  • ISBN: 0784407452
  • Files: TRIS
  • Created Date: Aug 23 2005 3:39PM