Hot Spot Analysis of Water Main Failures in California

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Abstract

The objectives of this study were to apply clustering analysis to identify abnormally high concentrations of water main failures (i.e., hot spots) for three selected service areas in California; perform multivariate linear regression for both the three hot spots and all main failures, taking into account pipe materials, diameter, hydraulic pressure, season, soil, length, air temperature, and water content; and compare major differences between the two regression results. Each case study site demonstrated unique failure mechanisms and spatial patterns. Selected pipe materials, season, diameter, and soil type demonstrated statistically significant effects on pipe longevity, accompanied by distinct characteristics for hot spots. This project lays the foundation for a standardized platform and approach to sustainable life cycle assessments for individual water infrastructure elements.

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Diego Martínez García:

Bio :

Diego Martínez García is a graduate research assistant in the Department of Civil Engineering at San Jose State University in San Jose, Calif. He earned a civil engineering degree from the National Autonomous University of Mexico (UNAM) in Mexico City, where he also completed a specialty in environmental engineering. During the course of his degree, he focused on wastewater reuse potential for agriculture in Mexico. He was offered the opportunity to participate in a summer program organized by Veolia in France, where the group was able to discover a wide range of solutions related to water and solid waste management in European cities. Martínez García has worked at the Treatment and Reuse Group at the Institute of Engineering–UNAM where he collaborated on studies related to water treatment for aquifer recharge, estimation of greenhouse gasses emissions at wastewater treatment facilities, and laboratory operation of a treatment pilot plant for indirect water reuse. His current work focuses on a water main replacement program by using geographic information system modeling and the effects of hydraulic transients in water infrastructure.

Juneseok Lee:

Bio :

Juneseok Lee (to whom correspondence may be addressed) is an associate professor in the Department of Civil Engineering, San José State University, One Washington Sq., San Jose, CA 95192 USA; juneseok.lee@sjsu.edu.

Jonathan Keck:

Bio :

Jonathan Keck is a manager of special projects,

Paul Yang:

Bio :

Paul Yang is a manager of asset management, and

Robert Guzzetta:

Bio :

Robert Guzzetta is a retired vice‐president at California Water Service, San Jose, Calif.

Journal

Journal ID (doi): 10.1002/(ISSN)1551-8833

Title: Journal ‐ American Water Works Association

Abbreviated Title: J Am Water Works Assoc

Publisher: John Wiley & Sons, Inc. (Hoboken, USA )

ISSN (Print): 0003-150X

ISSN (Electronic): 1551-8833

Publication date (Electronic): 28 May 2018

Affiliations

San Jose; CalifSan José State University

San Jose; CalifCalifornia Water Service Company

Article

DOI: 10.1002/awwa.1039

SO-VID: 40bf6b81-d414-49f0-a12d-29a63955888a

History

ScienceOpen disciplines: Earth & Environmental sciences,General environmental science,Environmental engineering

Keywords: multivariate linear regression,water mains,pipe materials,hot spots

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ScienceOpen disciplines: Earth & Environmental sciences, General environmental science, Environmental engineering

Keywords: multivariate linear regression, water mains, pipe materials, hot spots

Hot Spot Analysis of Water Main Failures in California

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AWWA Water Science

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