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Overview of EPA Research On Condition Assessment of Drinking Water Mains
Citation:
ROYER, M. D. AND J. Thomson. Overview of EPA Research On Condition Assessment of Drinking Water Mains. Presented at WSAA, WERF & Water Research Foundation Condition Assessment Workshop, Sydney, AUSTRALIA, July 22 - 23, 2009.
Impact/Purpose:
To inform the public.
Description:
This slide presentation provides an overview of condition assessment research that is part of EPA Office of Research and Development’s Aging Water Infrastructure Research Plan (AWIRP). The primary focus is on a water main condition assessment technology forum and associated white paper, and condition assessment technology demonstrations in Louisville, KY. The technology forum in September 2008 highlighted the need for better approaches to collect and utilize existing data; potential opportunities to improve condition assessment capability and affordability by building on recent advances in low-cost, low-intrusion leak detections and condition assessment; the potential value of developing consensus cost and performance targets for next-generation inspection technologies; and a strong interest in EPA support for field demonstration of condition assessment technologies.’ Based on discussions initiated at the technology forum, demonstrations in cooperation with Louisville Water Company are being conducted on 13 different types of condition assessment and leak detection/location technologies from 6 vendors. Technologies include in-line and external leak location; screening technologies for average 3wall thickness; in-line, detailed inspection devices; and non-intrusive, external detailed inspection approaches. The demonstration will be conducted on a 2500-ft length of 76-yr old, cement-lined, cast iron water main that will be replaced in September 2009.
