Underground storage tanks (UST) and their associated piping leak for a number of reasons, including corrosion, structural failure, or improper installation. Several methods are available to prevent these failures. Some of these, including cathodic protection and noncorroding construction materials have been used for 30 years or more. Although all are effective in preventing leaks, none are immune to failure. An analysis of leak incidents involving these technologies combined with knowledge of their design and installation reveals the most common modes of failure. A detailed study of the published literature was conducted to establish the history of the performance of cathodic protection, corrosion-resistant materials, coatings, and linings. Although failure rates were difficult to determine, most failures appeared to be attributable to preventable human error, rather than to problems with the technology.

Subject
Coatings, Materials, Galvanic anodes, Piping, Cathodic protection, Installation, Fiber reinforced plastic, Mechanical failure, Steel, Linings, Storage tanks, Impressed current, Resins
© 1988 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1988
Association for Materials Protection and Performance (AMPP)
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