underground water leak Articles

  • Petrox remediation of leaking underground storage tanks (USTs)

    Petrox is widely used to remediate soil and ground water contaminated by fuels and chemicals leaking from underground storage tanks (USTs). In many cases the UST removal contractor will treat residual contamination in the excavation after the leaking UST is removed. The effects of Petrox aerobic bioremediation can be seen in the ground water down gradient of the ...


    By CL Solutions, LLC

  • Protective coatings for underground utility concrete structures

    As our cities and municipalities grow older, the utility and wastewater infrastructure and corrosion preventive program for underground asset protection are aging with them. Municipalities and Utility Companies are struggling to handle rehabilitation measures and effective corrosion prevention programs to deal with prolonging the life of their buried assets. More municipalities are in the process ...


    By Sauereisen Inc.

  • 3D model evolution of a leak based on GPR image interpretation

    This paper presents some aspects of the time propagation of underground water leakage in controlled laboratory conditions using a drilled polyvinyl chloride (PVC) pipe and interpreting ground penetrating radar (GPR) images. GPR pre-processed images are interpreted for easy identification and extraction of surfaces and volumes of water leakage. Finally, the temporal evolution of a water leak is ...


    By IWA Publishing

  • Underground Water Tanks: Understanding the installation process is the first step in safety inspections

    Underground storage tanks are increasingly becoming essential components of building projects, driven by rising interest in on-site rainwater and graywater collection and reuse. As a result, building officials may need to expand their expertise to include these products and their components. Some safety inspection work is obvious; for instance, checking that the installer or project owner ...


    By Xerxes Corporation

  • Adsorption System Treating Contaminated Water: Leaking Tanks near Brampton Endanger Groundwater

    Untitled Document Summary: During the spring of 1989, the owners of a combined bulk and gasoline service station in Brampton, Ontario discovered leaks from one of the ...


    By Calgon Carbon Corporation

  • 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 Ltd

  • 10 Water Saving Tips for Early Spring

    As winter quickly draws to a close, the time has come to inspect the damage caused by the past few months of freezing temperatures, ice, and snow. With the inevitable annual thaw in mind, we have compiled a list of tips to help you identify leaks and conserve water by staying proactive throughout the spring and summer. With a whopping 850 water main breaks every day in the United States, you can ...


    By WaterSignal

  • An electromagnetic-based method for pinpointing leaks in buried pipes: a practical validation

    In this paper, a time domain reflectometry (TDR)-based solution for detecting water leaks in underground pipes is described and experimentally validated. The proposed method strongly reduces the inspection time that is typically required by traditional leak detection methods. In fact, it can successfully inspect pipes that are hundreds of meters long. In this work, two different configurations ...


    By IWA Publishing

  • Non-Revenue Water – A Growing Issue for Water Utilities

    Each day, billions of gallons of water are lost worldwide to various factors, including leaks, water main failures, theft and metering inaccuracies. Not only does this represent the waste of a precious resource that many people do not have reliable access to, it also represents a massive amount of lost revenue for the utilities that provide water services. In developed nations, ...

  • Rapid Analysis of Petroleum Hydrocarbons (TPH) in Soil and Water by Infrared Spectroscopy

    In 1988 the US EPA estimated that there were 3 to 5 million underground chemical storage tanks (UST’s) in the United States, of which up to 1% would develop leaks every year. In response to growing concerns about the quality and future availability of safe drinking water, federal and state programs have begun to systematically replace virtually all UST’s installed before 1986 either with above ...


    By Buck Scientific Inc

  • Case study - The Philadelphia Water Department (PWD)

    Service: Sahara Leak Detection Client: The Philadelphia Water Department (PWD) Project Date: 2007 Type of Pipelines: Transmission Mains Diameter: 16 to 60-inch Pipe Material: Cast Iron Dutile Iron Steel Length: 22.2 miles Results: 47+ leaks identified The Philadelphia Water Department (PWD) has focused on water loss management programs for the past decade ...

  • Asahi/America Application Story – Water / Waste Treatment

    The City of Valdosta, GA need to upgrade their Wastewater treatment plants Chemical & Scrubber Systems Their OLD LEAKING CAUSTIC SYSTEM was Piped in CPVC and painted Red color. The entire piping system from the Chemical Room to point of use was to be replaced due to multiple failures both above and below ground. The OLD CPVC carrier; clear PVC 'Clam Shell' containment D/C System had failed ...


    By Asahi/America, Inc.

  • Monitoring Water Resources Beyond Irrigation

    Over the past year, California’s governor has taken unprecedented action, requiring Californians to drastically cut potable urban water use. While the restrictions may seem harsh to some, it actually provides an opportunity for building managers and community association boards to implement an effective long-term water conservation program. And the result can be significant dollar savings. ...


    By WaterSignal

  • Underground, underwater, under stress: Town of Longboat Key puts SmartBall tool to unusual pipeline condition test

    When much of your critical sewer pipeline lies buried under a bay of shimmering ocean water, the challenges required to assess its condition may seem daunting. That task faced the Town of Longboat Key, an affluent retirement community located on the barrier island of the same name off the west coast of Florida. Sensitive to environmental, health and safety issues, ...

  • How To Put Your Building on a Water Diet in 2017

    As you prepare for the new year, why not commit your building to the same resolution as millions of American men and women: a diet! Every year, millions of gallons of water, one of our most precious resources, is wasted through undetected leaks, over irrigation and faulty equipment. Since most building managers and owners only check usage when the bill comes, your water usage is likely to ...


    By WaterSignal

  • 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 ...

  • GE Leakwise Application Notes: Oil Leaks at Power Generation Plants

    Fossil Fuel Power Generation Fuel fired power generation plants have several oil storage tanks for feeding fuel to the power units. Coal or gas fired power generation plants also have oil storage tanks to be used for start-up or as a back-up energy source. All ...


    By GE Analytical Instruments

  • GE Leakwise Application Notes: Leak Detection by Groundwater Monitoring

    Risks of Groundwater Contamination Hydrocarbon leakage, from Underground Storage Tanks (USTs) and from the bottoms of above ground tanks, can seep into the groundwater, where it forms a floating oil sheen, or a thick oil layer. This layer, if left undetected, ...


    By GE Analytical Instruments

  • What too much water can do to your collection systems

    In areas with a high water table, or for cities more prone to flooding, your underground infrastructure can become inundated with groundwater and stormwater. And despite stormwater systems being built for this type of collection, there are a number of things that can go wrong for both types of collection systems underground—and above ground—that can lead to contamination or degraded ...


    By Hamilton Kent

  • Emergency response and remediation of a petrol leak: petrol filling station

    Project: Emergency Fuel Leak at an Operational Petrol Station Client: Franchised petrol station operator Services: Emergency response/leak management, regulator negotiation, site investigation, remediation and verification Summary: Responsive, pragmatic advice and robust regulator negotiations aided rapid characterisation ...


    By ESI Consulting Ltd

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