water pipeline failure Articles

  • Study on failure rate analysis for water distribution pipelines

    Many of the waterworks facilities in Japan were constructed during the rapid economic growth period. Today, the deterioration and renovation of these aged facilities have become a pressing issue. There are approximately 600,000 km worth of water pipelines laid out across Japan, accounting for about 70% of the nation's water-related assets (totalling ¥40 trillion). To provide water that is safe to ...


    By IWA Publishing

  • Is the service life of water distribution pipelines linked to their failure rate?

    This paper aims to enable the relevant use of water main service lifetime and failure data to build a medium or long term infrastructure management plan. Firstly, how to estimate the service lifetime distribution of water mains using observations of decommissioning times which are possibly left-truncated and predominantly right-censored, is shown. Three methods are presented: a non-parametric ...


    By IWA Publishing

  • What makes high-risk pipelines deteriorate to a state of failure?

    According to AWWA's 2016 Benchmarking Survey, the average water and wastewater utility has seven breaks per 100 miles of piping every year. Tip-top systems experience just four breaks in that distance, while those at the bottom have 18. While it’s interesting to note the difference in break rates, it’s unfair ...


    By Pure Technologies

  • Debunking Murphy`s Law - Utilities address conditions to reduce risk of failure in aging metallic pipelines

    According to an adapted Murphy's Law, "anything that can fail, will fail." While that universal engineering law has been proven true again and again, many utilities are working diligently to reduce the risk of failure by taking measures to improve the service life of their aging ...


    By Pure Technologies

  • Leakage and failures of water distribution mains in the city of Al Ain, UAE

    A large amount of water is lost from the Al Ain water distribution system due to pipeline breakages that may have links to socio-economic and environmental impacts. The numbers of line failures in the region are too high. This study is an overview of the types and failure factors affecting water lines. Methods of repair and rehabilitation are described. Three case study locations were ...


    By IWA Publishing

  • ELECTRONIC WATER TREATMENT REDUCES FOULING AND CORROSION IN PIPELINES

    Increasing pressure loss in the pipeline is often caused by scale corrosion or product fouling of the internal surfaces. This condition slows transmission and distribution capacity, and can require more than just routine maintenance if it remains unaddressed. Interior corrosion, fouling and leakage in pipeline systems will adversely impact bottom-line operations. ...

  • Estimating burst probability of water pipelines with a competing hazard model

    Because pipeline systems represent more than 80% of the total asset value of water-distribution systems, their management is an important issue for water utilities. A pipeline deteriorates over time after installation and, along with the deterioration, pipe bursts can occur as various types, and the choice of a maintenance and repair strategy will depend on the burst types. It is therefore ...


    By IWA Publishing

  • Metropolitana milanese reduces water loss on critical steel pipeline

    Assessing the condition of buried water infrastructure can yield a variety of outcomes that are difficult to predict. Sometimes, they even seem random. The common belief that the age of a pipe determines its condition is rarely correct – in many cases, a newer main can be in worse condition than one twice or three times as old. Instead, operational, environmental and installation factors ...


    By Pure Technologies

  • A long-term plan for water pipeline rehabilitation considering preventive maintenance

    Water pipelines deliver water of daily-life demand to customers. However, pipelines tend to be damaged after years of use. Thus, many waterworks are now faced with the major task of water pipeline rehabilitation. However, budgets for pipeline replacement are limited. The present study aims to propose a long-term plan for water pipeline rehabilitation under limited rehabilitation budgets that ...


    By IWA Publishing

  • San Diego County Water Authority Manages Steel Pipelines

    Utilities across the country are experiencing an increased rate of pipeline failures. In addition to problems precipitated by an aging water infrastructure, a lagging economy is affecting large-scale capital projects needed for repairing, replacing, and improving infrastructure. With funding gap estimates ranging between $200 billion and $1 trillion over the next 20 years, utilities must find ...


    By Pure Technologies

  • Pipeline infrastructure renewal at Miami-Dade Water & Sewer Department

    Abstract Various governmental, professional and private studies have shown that the replacement costs of underground pipeline infrastructure is excessive and that best practice approaches for infrastructure risk management promote condition assessment programs to understand the actual condition of individual pipe sections in order to best allocate limited capital replacement and ...


    By Pure Technologies

  • Advanced criticality assessment method for sewer pipeline assets

    For effective management of water and wastewater infrastructure, the United States Environmental Protection Agency (US-EPA) has long emphasized the significant role of risk in prioritizing and optimizing asset management decisions. High risk assets are defined as assets with a high probability of failure (e.g. soon to fail, old, poor condition) and high consequences of failure (e.g. ...


    By IWA Publishing

  • Managing Metallic Pipeline Networks In A Sustainable Manner

    In North America, the material and size of pipes that make up water and sewer networks range widely. Because these pipeline systems are so complex, it requires a strategic approach based on risk and real data for effective long-term management. Historically, however, it has been challenging to gather real data that can shape defensive capital decisions for an entire system. The assessment of ...


    By Pure Technologies

  • Case study - LHPWSS Manages Critical Pipeline

    Service: Assess and Address Client: Lake Huron Primary Water Supply System Project Date: October 2012 - March 2013 Location: Greater London Region, ON Type of Pipeline: Water Transmission Main Diameter: 48-inch (1200mm) Pipe Material: PCCP The Lake Huron Primary Water Supply System (LHPWSS) serves about 500,000 people over eight municipalities in the London area and ...


    By Pure Technologies

  • Case study - City of Rockville - Robotic Pipeline Inspection

    Service: PureRobotics - Robotic Pipeline Inspection Client: City of Rockville Project Date: July 2010 Type of Pipeline: Water Transmission Main Diameter: 24-inch Pipe Material: PCCP Length: 53,000 feet Results: 3 pipe sections identified at risk Insertion of Pipeline Inspection Robot Pure Technologies (Pure) was contracted to provide robotic pipeline inspection ...


    By Pure Technologies

  • No Silver Bullet Technology For Pipeline Condition Assessment

    For utilities with large-diameter networks, waiting for failures to occur before repairing or replacing highly critical mains is not an option. With a large amount of buried water infrastructure reaching the end of its service life, operators have every incentive to take a proactive approach to asset management. Nowhere is this more critical than in busy urban centres. The fallout from an ...


    By Pure Technologies

  • Pipeline Management Lessons: Old Isn’t Always Bad

    Underground pipelines are among the most valuable, yet neglected assets in the public arena. They provide essential services such as the supply of drinking water and collection of wastewater. Despite their critical importance, for decades many municipal utilities have operated under a “bury and forget” mentality – with little emphasis on long-term management of their aging ...


    By Pure Technologies

  • Renewal prioritization of multi-regional water supply pipelines through water supply risk assessment

    In the Republic of Korea, multi-regional water supply pipelines were intensively laid during the rapid economic growth period; however, these pipelines are now aging. The cost of renewal of the aged pipelines would be enormous. Therefore, limited resources need to be distributed effectively in accordance with the priority of renewal. In this study, the risks involved in the multi-regional ...


    By IWA Publishing

  • The Investigation, Assessment and Design of a Rehabilitation Solution Following the Failure of an Asbestos Cement Force Main in Israel

    Following failure of a 50” Asbestos Cement force main in Tel Aviv, Israel, a failure analysis was undertaken to determine the cause of failure and the risk of further incidents. This identified the possibility of further catastrophic bursts of the force main. Fully structural rehabilitation was designed using a hybrid reinforced concrete and ferrocement approach in order to meet all of the ...

  • Replacement Fill Control Valves with Electronic Flow and Metering Improve Pressure, Stop Leakage and Prevent Valve Failures

    The City of Modesto, California is situated 90 miles east of San Francisco and has approximately 200,000 residents relying on 200,000 of gallons of water a day. The City needed to upgrade three water storage tanks that hold approximately 750,000 gallons each. After years of using motor operated valves to fill water storage tanks, the city recognized that there were just too many problems. ...


    By Singer Valve Inc.

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