underground leak testing Articles

  • Reaching underground resources

    Accessing critical resources such as geothermal energy and natural gas requires drilling — an expensive, energy-intensive, messy process with today's technology. An MIT team has been looking into a more elegant approach. Instead of grinding rock to bits, they would use a continuous beam of energy to vaporize it and then blow out the tiny particles that form with a high-pressure stream of ...

  • 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, ...


    By Pure Technologies

  • EPA studies identify techniques for critical leak testing prior to soil-vapor sampling

    Researchers at EPA’s National Risk Management Research Laboratory (NRMRL) in Ada, OK, are developing quality assurance (QA) measures for soil-gas and sub-slab sampling methods that help differentiate contaminant vapors due to vapor intrusion from background sources. Recent research focused on measures to identify leakage of ambient air into conventional vapor probes, which can significantly ...

  • Feds propose new reg to remove leaking storage tanks from service

    With spills and leaks from storage tank systems that contain petroleum products continuing to pose significant health and environmental risks, the federal Department of the Environment proposed recently a new regulation to reduce the risk of contaminating soil and groundwater. The proposed Storage Tank Systems for Petroleum Products and Allied Petroleum Products Regulations would replace the ...

  • Identifying Leaks from Natural Gas Pipelines at a Safe Distance

    The use of natural gas, of which methane is the principle component, is increasing worldwide. According to the American Petroleum Institute methane meets 24% of U.S. energy demand and heats over 50% of all U.S. households. It also has many industrial uses, such as the manufacture of chemicals like ammonia, methanol, butane, ethane, propane and acetic acid; it is also an ingredient in products as ...

  • 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 ...

  • Successful Pilot Test Results in Full-Scale Treatment of Large BTEX Plume

    CASE SUMMARYRefueling Station – Algonquin, IL Leaking underground storage tanks at a refueling station resulted in a benzene, toluene, ethylbenzene and xylene (BTEX) plume in the underlying sand/gravel aquifer. The plume covered 1-acre and extended 390 feet downgradient from the source area, with a total BTEX concentration exceeding 24,000 parts per billion (ppb). In an ...


    By REGENESIS

  • 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

  • On-Site Analysis of Gasoline Range Organics (GRO) in Soil and Groundwater Using Field Portable Purge and Trap GC / FID / PID

    Although leaking underground storage tanks account for the majority of gasoline contamination in soils and groundwater, other events such as accidents during product transportation or delivery are also significant. Spill clean-ups and tank replacements have an immediacy to them due to the very steep relationship between delay and cost. Since gasoline is highly mobile in the environment, it is ...


    By Buck Scientific Inc

  • Development of resistivity probes for continuous monitoring of pollutant in porous media

    In this study, an attempt has been made to develop resistivity probes and an experimental setup capable of simulating the field conditions concerned with migration of pollutant through the porous media. The porous media chosen for the present study is commercially available uniformly graded sand; while Sodium Chloride solution was considered as the pollutant. For the continuous monitoring of ...


    By Inderscience Publishers

  • On-Site TPH in Soil Measurements

    On-site analysis of total petroleum hydrocarbon (TPH) concentration levels in soil are easily handled using the InfraCal TOG/TPH Analyzers manufactured by Wilks Enterprise, Inc.  The InfraCal TOG/TPH Analyzers are portable infrared (IR) analyzers that quickly determine TPH levels in less than 10-15 minutes, including the extraction.  Concentrations as low as 10 ppm to well over 10,000 - ...


    By Spectro Scientific

  • Case study - EPH in soil with No. 6 fuel oil

    No. 6 fuel oils (heavy fuel oil, bunker C oil) is often used in industry for heat, steam or power generation. A consultant used Sitelab to investigate two different spill sites contaminated with subsurface plumes of NAPL resulting from leaking underground storage tanks (USTs). Soils were collected from borings using a drill rig and field screened for their EPH aromatic content. Split samples ...


    By Sitelab Corporation

  • Rikers Island UST design & environmental services

    Design and Permitting of the upgrade fourteen (14) underground diesel & No. 6 fuel oil storage tanks with a combined tankage of over 540,000 gallons for a Major Oil Storage Facility. Project includes subsurface investigation, installation of soil borings, groundwater monitoring wells, non-destructive ultrasonic and volumetric tightness testing of tanks, tank design rehabilitation including ...


    By GEA ENGINEERING

  • Quantifying Sub-Surface Discharges from Individual Sewer Defects

    ABSTRACTThe California Regional Water Quality Control Board, Santa Ana Region (RWQCB) required wastewater collection agencies in Orange County to report discharges from “pipe breaks, leaking sewer pipes and joints, and other subsurface discharges of wastewater.” The Orange County Sanitation District (OCSD), in conjunction with a research team from University of California, Irvine (UCI), developed ...

  • Integrity management: how direct assessment is improving pipeline inspection

    Oil and gas pipelines have been around for well over a century, and some of the earliest constructed are still in service today.  Although early pipelines were made of wood, and in the past few decades plastics and composite materials have increased in popularity, the vast majority of pipelines in service today are constructed with steel.  Like any pipe material, steel pipe has its ...


    By Pure Technologies

  • 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 ...

  • Effective fight against unpleasant smell

    As part of a project for the neutralisation of hydrogen sulphide in the sewage system of a medium-size municipality, sera has started over ten innovative dosing systems in September 2008. An effective solution was developed in cooperation with an internationally operating water technology company. A municipality of approximately 50.000 citizens in the German state of North Rhine Westphalia was ...


    By sera GmbH

  • Top 8 things to check when maintaining a Pressure Reducing Valve

    Like every other piece of mechanical equipment we use, a control valve does require some maintenance. As budgets are stretched and time is tight, it can be tempting to ignore checking on valves that are often located in underground vaults and give years of operation without complaint, but eventually like everything else, they will fail. This article looks at 8 simple steps that if undertaken ...


    By Singer Valve Inc.

  • On-Site TPH in Soil Measurements in less than 15 Minutes with Portable IR Analyzers

    On-site analysis of total petroleum hydrocarbon (TPH) concentration levels in soil are easily handled using the InfraCal TOG/TPH Analyzers manufactured by Wilks Enterprise, Inc.  The InfraCal TOG/TPH Analyzers are portable infrared (IR) analyzers that quickly determine TPH levels in less than 10-15 minutes, including the extraction.  Concentrations as low as 10 ppm to well over 10,000 - ...


    By Spectro Scientific

  • Gas Safety in Confined Spaces

    Introduction An offshore worker ensures a vessel is safe to enter; a plant manager enters a small plant room; a contractor inspects the lining of a sewage pipe.  All these personnel face common dangers, despite working in widely different industries.  Gas-related injury poses a serious threat in any confined space where the free movement of air is limited. A confined space ...

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