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Category Archives: News Articles

Double-Ended Sometimes the Only Option

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Ellingson-DTD crews recently completed a series of double-ended horizontal Air Sparge (AS and Soil Vapor Extraction (SVE) wells at an…


Horizontal ERH – The Fusion of Two Technologies

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Horizontal Electrical Resistance Heating (ERH) is the integration of two remediation technologies: horizontal wells and ERH. Horizontal wells are noted…


Horizontal Wells in the ‘Burbs

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Conducting groundwater remediation in a residential area presents a number of unique challenges. The most difficult aspects, as one might…


Virtual Short Course on Remediation

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Join Ellingson-DTD, SiREM, Tersus Environmental and Pace Analytical for a half-day virtual short course. We’ll focus on recent technical advances…


Thermal Remediation, Shallow Angle

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Ellingson-DTD (DTD) directionally drilled six thermal remediation wells earlier this year. The project required source area remediation beneath a training…


Passive Treatment HRX Well to Receive NGWA Technology Award

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As an innovator in the realm of horizontal drilling for site remediation, Ellingson-DTD has been pleased to introduce a variety…


Vapor Intrusion Mitigation Using HDD

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DTD crews recently completed the installation of a horizontal SVE in Northern CA. The well is part remediation well and…


DTD Acquired by Ellingson

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DTD is pleased to announce our acquisition by Ellingson. All of DTD’s management and staff are making the figurative move…


Minimizing Trenching using HDD at a Houston Superfund Site

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DTD has finished installing a total of 21 conveyance lines at an active Superfund site in Houston, Texas. The source…


Discrete Soil Sampling Using HDD

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DTD Crews recently completed a unique site characterization project. Field work involved the use of horizontal directional drilling (HDD) for…