Innovative research program on the renewal of aging water infrastructure systems

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The needs associated with the aging water infrastructure are immense and have been estimated at more than $1 trillion over the next 20 years for water and wastewater utilities. To meet this growing need, utilities require the use of innovative technologies and procedures for managing their systems. To help meet their needs, the U.S. Environmental Protection Agency initiated a research program to assist utilities in the renewal of water distribution and wastewater collection systems and this paper summarizes that program. This paper addresses the state-of-the-art review of current and emerging renewal technologies available for water distribution and wastewater collection systems. This paper also discusses the results of other program components which are intended to aid in the use of the renewal methods. This included: a cured-in-place pipe retrospective study of liners in use for more than 25 years; a field demonstration program of innovative water rehabilitation methods; a review of quality assurance and quality control measures for trenchless technologies; and current decision-making models and methodologies available to support rehabilitation versus replacement decisions.

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