direct push Articles

  • Direct-Push Injection and Circulation Biobarrier to Remediate a TCE Groundwater Plume

    ABSTRACT: The goal of this study was to determine if direct-push drilling methods combined with a circulation system could be used to establish a passive biobarrier in a very transmissive aquifer to treat tricholoroethene (TCE). The Site is located in central Indiana, where historic use of TCE has impacted an unconfined aquifer. A plume consisting primarily of TCE has migrated from west to east ...


    By EOS Remediation, LLC

  • Guest Editorial: Pushing Tort Reform to the Forefront

    The daunting costs of uncontrolled tort claims beg the need for tort reform. The need for tort reform legislation has reached a new level of urgency. A few facts explain why. The “elephantine mass” to which U.S. Supreme Court Justice Souter likened asbestos litigation shows no sign of receding. Indeed, the mass continues to feast on an orgy of claims – over 60 companies have sought bankruptcy ...


    By Bergeson & Campbell, P.C.

  • How Ergonomics Directs Force

    Muscling an airplane out of a hangar and onto the runway takes a fair amount of physical effort. Exert just a little too much force while your body twists during maneuvering and you could be spending weeks at the chiropractor. ...


    By DJProducts, Inc.

  • Just–in–time manufacturing: literature review and directions

    The purpose of this paper is to review the literature on just–in–time (JIT) and to present a general survey of JIT implementation practices adopted by the manufacturing organisations. The published literature has been deeply analysed and arranged systematically in this paper. This paper examines the evolution of JIT and its implementation in the organisations. Various strategies, elements and ...


    By Inderscience Publishers

  • Vinyl Chloride Attenuation By Direct Injection of Time-Release Magnesium Peroxide.

    ABSTRACT: This case study shows that there is potential to remediate dissolved vinyl chloride by oxygenation in the field. Residual vinyl chloride concentrations have been remediated in the field at a mid-western site with a phosphate-intercalated peroxygen (ORC®, a proprietary formulation of magnesium peroxide that releases oxygen slowly). The site was formerly operated as an aluminum coating ...


    By REGENESIS

  • ASC Tech Services

    Environmental contamination is risky business, to access risk, high-tech and unique geophysical site characterization methods can be employed. By utilizing these high tech gadgets that describe the ground and detail exactly what can’t be seen. Just like the Silicon Valley, new methods have surfaced and now more than ever it is easy to characterize the subsurface using direct push tools. ...


    By ASC Tech Services

  • Detailed hydraulic assessment using a high-resolution piezocone coupled to the GeoVIS

    Department of Defense (DoD) ground water assessment and remediation projects require cost effective methods for determining the direction and rate of ground water and contaminant flow. Monitoring wells have typically been used to estimate these parameters. However, detailed three-dimensional ground water and contaminant flow pathways cannot typically be delineated using monitoring well data. ...

  • Detailed hydraulic assessment using a high-resolution piezocone

    Department of Defense (DoD) ground water assessment and remediation projects require cost effective methods for determination of the direction and rate of ground water and contaminant flow. Monitoring wells have typically been used to estimate these parameters. However, detailed three-dimensional ground water and contaminant flow pathways cannot typically be delineated using monitoring well data. ...

  • Systems approach - Petroleum site

    An 18-month, in-situ biological program, specifically aimed at accelerating the current attenuation process such that the owner can sell the property began May 5, 2000. The remedial approach focused on bacterial population management, nutrient augmentation, terminal electron acceptor enhancement, and an efficient subsurface delivery of the enhancement liquids. Specifically, a novel delivery ...

  • Comparative Effects of HRC Application at Four Project Locations (PDF)

    Four site locations in the Southern or Midwest United States were the venues for pilot testing of a commercially available injectable bioremediation product (HRC™) to enhance the reductive dechlorination of chlorinated solvents. This activity occurred from 1997 through the end of 2000. Prior to injection, each site exhibited bioattenuation of parent compounds such as PCE, TCE, carbon ...


    By REGENESIS

  • Who says you need multiple wire breaks for a PCCP pipe to fail?

    Abstract On Sunday, October 5, at about 2:30 a.m. a section of 72-inch prestressed concrete cylinder pipe (PCCP) failed. The 72-inch-diameter PCCP was nominally capable of sustaining an internal pressure of 281 psi. Previous examinations of the pipeline, utilizing the best available nondestructive examination techniques, provided little indication that this pipe section was at risk of ...


    By Pure Technologies

  • Model 540MT “Shines” in Georgia Clays

    Light-weight, shallow sampling machine finds perfect niche Ever since Jeff Johnson, owner of Environmental Monitoring Services (EMS) in Acworth, GA, purchased his Geoprobe® Model 540MT early this year, he has pushed a full gambit of tools with the machine. Macro-Core®, DT21, SP15, LB, Soil Gas, and even Prepacked Monitoring Wells have all been used under the EMS 540MT. The machine was up ...

  • Groundwater contamination of 1,1,1-TCA, PCE - Manufacturing facility

    LOCATION:  Glen Cove, New YorkPROJECT DATE:  September 2000 to presentCLIENT:  Confidential BACKGROUND: Groundwater in a sand and gravel aquifer beneath this active manufacturing facility was contaminated with 1,1,1-TCA (concentrations up to 480 mg/L), PCE, and their degradation products. The site owner, faced with a long term (in excess of 100 years) and expensive pump and treat ...


    By Terra Systems, Inc. (TSI)

  • Ultrasonics: a sound mixing technology

    When liquid mixing, dispersing or homogenising is required in the lab, people tend to think of rotary mixers, although this traditional technology has limitations that can be costly both in time and material. Ultrasonics is the preferred innovative technology for various mixing applications in the lab. It combines extremely efficient and ultra effective high shear power with the added benefit of ...

  • Establishing environmental baseline case study

    Challenge: A major integrated oil company, intending to divest a portfolio of 68 retail petroleum facilities in the northwest United States, requested the services of Antea Group to conduct Phase II Environmental Site Assessments in order to establish an environmental baseline prior to selling the assets. Among the project-specific challenges were a short performance timeframe, a newly ...


    By Antea Group - USA

  • Get high quality samples with your drive-point Piezometer

    The results from short-term and long-term groundwater monitoring studies have shown that samples taken from Direct Push wells are comparable in quality to those obtained from conventional monitoring wells (ITRC, 2006). Solinst offers the Model 615 Drive-Point Piezometers that can be driven into suitable soils for ...


    By Solinst Canada Ltd.

  • Shield Environmental Assoc. Defeats Bedrock Contamination with BOS 200® at Truck Stop

    Shield Environmental Associates (Lexington, KY) has faced some daunting challenges over many years of successful service to their clients, but this one was remarkable. The Problem: A 320 foot long dissolved BTEX plume in both shallow and deep zones in lithology very unfriendly to direct push sampling or injections. The Team: Shield Environmental Associates ...

  • Using AquaBupH to adjust aquifer PH: ESTCP-funded project at Charleston Naval weapons station - Case Study

    Elevated levels of trichloroethene (TCE) were found in groundwater at a Department of De-fense (DoD) facility in Charleston, SC. Under an ESTCP-funded in situ technology demonstra-tion project , the Navy had been effectively remediating contamination until a drop in aquifer pH caused dechlorination rates to decline. Solutions-IES responded with a study and applica-tion of buffered substrate to ...


    By EOS Remediation, LLC

  • ISCR-Enhanced Bioremediation of a TCE DNAPL Source Utilizing EHC® and KB-1®

    Remediation of chlorinated solvent DNAPL sites often meets with mixed results. This can be attributed to the diametrically opposed nature of the impacts, where the disparate dissolved phase plume is more manageable than the localized, high-concentration source area. A wide range of technologies are available for downgradient plume management, but the relative mass of contaminants in a ...


  • S2C2 Inc. utilizes EQuIS, RockWorks and ArcGIS implementing the Triad approach

    When implementing the Triad Approach, S2C2 Inc. (S2C2) relies upon EarthSoft’s EQuIS,ESRI’s ArcGIS and Rockware’s RockWorks software toptimize the management andvisualization of large data sets. The USEPA’s Triad Approach incorporates the following threecomponents: systematic planning, real-time measurements and dynamic work strategies. Theprimary goal of this approach is tstreamline site ...


    By EarthSoft, Inc

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