• AWWA WQTC63970

AWWA WQTC63970

Corrosion in Home Drinking Water Infrastructure: Assessment of Causal Factors, Costs, and Willingness to Pay

American Water Works Association , 11/01/2006

Publisher: AWWA

File Format: PDF

$12.00$24.00


High incidences of pinhole leaks, which occur in home plumbing due to pitting corrosion of water pipes, have been observed in parts of the U.S. such as the Maryland suburbs of Washington D.C. This research evaluates factors that might affect leaks, assesses the costs incurred by consumers from corrosion as well as the willingness to pay for improved water infrastructure. Statistical analysis of Maryland survey responses suggests that the probability of pinhole leak occurrences is associated with the type of pipes installed and the distance of the dwelling from a water treatment plant. The number of leaks and location of pinhole leaks in the dwelling drive the financial costs of pinhole leak damage. Correcting for sample selection bias influences the estimated coefficients and statistical significance of the model. Willingness to pay (WTP) for improvements in drinking water infrastructure is evaluated using data from a 2005 telephone survey of households across the United States. The impact of socioeconomic factors, income and previous experiences with infrastructure problems on WTP is evaluated using an ordered probit model. Research findings will inform policymakers, program managers, and water utilities on the importance of reducing corrosion in home drinking water infrastructure. Includes 21 references, tables.

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