Skip to main content

Ultrasonic Thickness Mapping of Steel Piping at a Wastewater Pump Station

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


As managers struggle to maintain their aging infrastructure at minimal cost, the pipe assets within their pumping facilities may be overlooked. These components often appear in good condition because their external paint coatings are easily maintained. However, usually little is known about their actual condition because the systems are in constant service and can't be readily inspected from within. Ultrasonic thickness testing (UT) is commonly employed in industrial facilities to gather the data needed to assess the condition of these systems. Such inspections are rarely, if ever, undertaken in many water and wastewater facilities, and even then are typically restricted to solitary tests at “key” locations in the facility. If the inspector lacks a reasonable understanding of plant operations and the erosion/corrosion processes that occur in piping systems, severely deteriorated locations may go undetected. By utilizing data loggers and innovative mapping techniques, a more comprehensive UT inspection can be undertaken very cost effectively, and a more precise understanding of system condition state can be obtained. This paper details a comprehensive UT inspection program that was undertaken in 2007 at a major wastewater pumping station in the City of Winnipeg.

Keywords: Ultrasonic thickness testing; corrosion rate; gauge calibration; service life; steel pipe; surface mapping; wastewater pumping station

Document Type: Research Article


Publication date: January 1, 2009

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more