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Buried, Forgotten… Bitten?

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As water and wastewater treatment plants age, the underground assets live out their useful lives or become victims of premature failures. Premature failures occur due to a variety of reasons: H2S corrosion, chemical incompatibility, corrosive soils, scouring, etc.). Unfortunately the response to these failures is often reactive and results in numerous problems. The Hampton Roads Sanitation District (HRSD) Army Base Treatment Wastewater Treatment Plant (WWTP) embarked upon a proactive program to review the status of underground assets. The program involved the development of an inventory database, risk ranking assets, decision tree investigation alternatives, field investigation, and incorporation of results into the corporate GIS.
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Keywords: CCTV; GIS; Underground pipe; corroded pipes; decision tree; pipe failures; risk ranking

Document Type: Research Article

Publication date: 2009-01-01

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