leak location study Articles

  • Robust sensor placement for leak location: analysis and design

    In this paper, a nominal sensor placement methodology for leak location in water distribution networks is presented. To reduce the size and the complexity of the optimization problem a clustering technique is combined with the nominal sensor placement methodology. Some of the pressure sensor placement methods for leak detection and location in water distribution networks are based on the ...


    By IWA Publishing

  • Integrated sensing technologies for detection and location of leaks in water distribution networks

    Water distribution networks (WDNs) are infrastructure systems that have high socioeconomic values, for which efficient operation and management are required to ensure minimal amounts of waste which can be represented in the form of leaks. Leak detection is considered as one of the challenges faced by municipalities operating WDNs because it either involves shutting down the system or requires ...


    By IWA Publishing

  • Case study - Dallas Water Utilities - Leak Detection

    Service: Sahara Leak Detection Client: Dallas Water Utilities (DWU) Department of Public Works Type of Pipeline: Raw Water Transmission Main Diameter: 108-inch Pipe Material: PCCP Length: 7.3 miles The City of Dallas Water Utilities (DALW) currently draws its raw water from six sources: the Elm Fork of the Trinity River and Lakes Ray Roberts, Lewisville, Grapevine, Ray ...


    By Pure Technologies

  • Case study - Birmingham water works board identifies 26 leaks using advanced inline leak detection

    Service: SmartBall Leak Detection Client: Birmingham Water Works Board Project Date: January 2012 - ongoing Location: Birmingham, Ala Type of Pipeline: Water Transmission Main Diameter: 42-inch (1050mm) Pipe Material: Reinforced Concrete Pipe In early 2012, the Birmingham Water Works Board (BWWB) ran a successful leak detection program on 7.7 miles (12 km) of 42-inch ...


    By Pure Technologies

  • Birmingham Water Works Board Leak Detection Program case study

    Service: SoundPrint AFO Client: Baltimore City Project Date: 2012 Location: Baltimore, MD Type of Pipeline: Water Transmission Main Diameter: 54-inch (1350mm) Pipe Material: PCCP ...


    By Pure Technologies

  • Scanning for Leaks & Sinkhole Detection in a Retention Pond - Case Study

    In January 2015, one of our clients used AGI tools and software for leak and sinkhole detection in the liner of a retention pond in Tennessee. Process Our client’s customer had a retention pond that was designed to hold liquid, but it was leaking through a hole in the liner. The client used the ...


    By Advanced Geosciences, Inc.

  • Amistad Dam: Identifying Critical Leaks in the Amistad Dam - Case Study

    Why was the Amistad dam emptying—and what could be done to solve the problem? In 1996, the Comision Federal de Electricidad (CFE), the national electric company of Mexico responsible for the Mexican half of the Amistad Dam, contacted AGI. The CFE heard about the capabilities of our instruments to look into the ground, and they were ...


    By Advanced Geosciences, Inc.

  • Hazardous Location LEDs in Chemical Manufacturing Facilities

    Employees inside chemical manufacturing plants are exposed to some of the most unforgiving work conditions in the industrial sector. This is because in such environments, workers are exposed to extreme temperatures, dust, volatile chemicals and invisible, explosive gases. Common protection methods against explosive risks include containment, segregation and prevention. Out of all the ...


    By Larson Electronics LLC

  • Investigation and risk assessment of a diesel leak: confidential

    Project: Emergency Investigation of a Fuel Leak Client: Confidential infrastructure management company Services: Rapid site characterisation and risk assessment Summary: Detailed risk assessment was used to quantify the environment risks pose by a fuel leak and avoid unnecessary remediation ESI was commissioned to ...


    By ESI Consulting

  • Germany/Albstadt: How telemetry cuts the cost of leak detection significantly - Case study

    Introduction Albstadt is a town located in southwest Germany, about 80km south of Stuttgart. Albstadtwerke are the utility network distribution provider in this region supplying potable water, natural gas and electricity.  In addition to managing and maintaining the local distribution assets in Albstadt, Albstadtwerke operate and maintain two more potable water distribution networks, ...


    By Gutermann AG

  • Tackling Non-Revenue Water by Identifying Small Leaks

    Small leaks sink big ships – the same can be said for large-diameter pipes in utility networks. While large leaks or ruptures are seen as newsworthy stories accompanied by images of water flowing down the streets; smaller leaks can often be more devastating. Left undetected, they can add up over time, contributing significantly to ...


    By Pure Technologies

  • Refrigerant leak detection is heavily regulated by government agencies

    Refrigerant leak monitoring in refrigeration and air-conditioning (RAC) systems and heating, ventilation and air conditioning (HVAC-R) equipment is very challenging, even for the most skilled HVAC-R technician. The leak could be well concealed from view in tubing, a system component, or in an operating or safety control component. With the Environmental Protection Agency (EPA) laws documented ...


    By Verisae

  • Pollution mapping case study

    This exploration survey used the cross-hole resistivity method to detect if there was industrial waste water leakage from an industrial waste water process pond. Chemical analyses concluded that this specific waste water has a much lower resistivity than normal water. The figure below shows that the area above 45m is a relatively high resistive zone made of limestone. Below this depth is a middle ...

  • SMF4 case study 3

    Bathing Water Catchment monitoring Date:2010 Location: Bude Cornwall UK Purpose: To carry out a river survey identifying potential pollution sources and their likely impact on bathing waters downstream. Background STS and the Environment Agency have, for some time, been discussing the issue of monitoring water courses which ...


    By Safe Training Systems Ltd

  • Case study - Petrobras - Natal, Brazil

    Service: SmartBall - Oil Leak Detection Client: Petrobras Project Date: October 2010 Type of Pipeline: Multi-phase product Diameter: 12-inch Pipe Material: Steel Length: 20,900 meters Flow Rate: 0.3 – 0.6 m/s (1 ft/s) Pressure: 90-150 psi Temperature: 35◦ C Results: 3 simulated leaks created and ...


    By Pure Technologies

  • STOP IT Metals & Minerals - Case Study

    From a Mine in Illinois: STOP IT® was used on a rubber hose that had a hole approximately 3/8' wide × 3' long. The hose was 12' in diameter and carried magnetite and water. Four rolls of 4'×12' STOP IT® were used to seal this leak. Quote: 'This pipe was approximately eight feet from the pump and is under a lot of pressure and also moves under pressure. Repairing this hole ...


    By InduMar Products, Inc.

  • Refrigerant gas management (case study)

    Executive Summary Refrigerant leaks are one the highest maintenance expenses for organizations using or maintaining gas. In addition to compliance, management of refrigerant is important from a cost perspective. A typical 100-store supermarket chain operates with 400,000 lbs. of refrigerant within their refrigeration and air conditioning systems. Assuming an average cost of $6 per ...


    By Verisae

  • Risk-based sensor placement methods for burst/leak detection in water distribution systems

    The optimal placement of sensors for burst/leak detection in water distribution systems is usually formulated as an optimisation problem. In this study three different risk-based functions are used to drive optimal location of a given number of sensors in a water distribution network. A simple function based on likelihood of leak non-detection is compared with two other risk-based functions, ...


    By IWA Publishing

  • Case study – BTEX contamination - Kentucky

    In 1992, remedial activities began at the Shively Service Center located in Radcliff, Kentucky. After the leaking underground storage tanks were removed from the site approximately 1,500 cubic yards of BTEX impacted soil was excavated and disposed off-site from the tank pits. Based on the review of historical sampling activities it was believed that the majority of the impacted soils were removed ...

  • Case Study: Laurel Bed Dam

    Background Froehling & Robertson Inc were engaged by the Virginia Department of Game and Inland Fisheries to remediate seepage paths at the Laurel Bed dam. The dam had been leaking in excess of 500 gpm with water leaking in multiple locations. This water supply feeds a popular trout stream. If the dam failed, homes in the valley below the dam could be flooded. Q: ...


    By Willowstick Technologies LLC

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