Comparison of a Migration Approach to a Defect Approach for I/I Reduction

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This document highlights the elemental differences between 2 approaches to collection system and WWTP improvement. The new approach is called the “Migration Approach” while the old USEPA approach is called the “Defect Approach.” The differences stem from 30 years of observations about what went right and what went wrong in sewer system rehabilitation. In essence, the Migration Approach, is a combination of three things:

Incisive engineering

A new type of cost analysis and

Comprehensive rehabilitation

Document Type: Research Article


Publication date: January 1, 2005

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  • 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 These proceedings are not peer reviewed.

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