American Auger 210 drill rig, high-capacity drilling fluids cleaning and recycling system, geomagnetic wireline steering tool, KO tooling
Project Type :
Pilot study pore water extraction
Indiana Pilot study pore water extraction 2022
Ellingson-DTD installed one coal ash dewatering drain within a partially capped and closed mixed ash basin. The HDD was initiated alongside the target basin from the bottom of an excavated adjacent basin. The bore penetrated the target basin wall and trended along the bottom of the unlined basin at an upward 0.5% before terminating at the far edge of the basin.
The drilling returns indicated the bore penetrated clay and then a mix of fly ash and other coal ash residuals. The drain totaled 1,081’ in length and included 936’ of 4” diameter schedule 80 PVC screen.
Upon completion, the well passively discharged 10-20 gpm, and 5 months after installation and intermittent pumping, the drain is still producing 15 gpm.
The Leader in Horizontal Coal Ash Dewatering
Managing groundwater and pore water doesn’t have to mean endless wells, pumps, and costs. Ellingson’s patented horizontal drilling method makes dewatering faster, safer, and more affordable-helping utilities, engineers, and contractors move ash from wet storage to compliant dry landfills with confidence.
With over 30 years of HDD expertise and more than 63,000 feet of coal ash wells installed, we deliver proven results that simplify compliance and protect communities.
If you’re ready for a more innovative approach to coal ash dewatering, Ellingson is the partner who can get it done.
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coal, water, directional drilling, management, soil vapor extraction, environmental remediation, horizontal, remediation, aquifer, dewatering, water quality, water resources, infrastructure, water extraction, water supply, surface water, construction, soil, efficiency, technology, borehole, tailings, water injection, well, slope stability, permeability, projects, ellingson, formation, environmental, horizontal directional drilling, drill, mud, engineering
Frequently Asked Questions
What are the benefits of coal ash dewatering?
The benefits of coal ash dewatering include faster, safer, and more affordable management of coal ash basins, facilitating compliance and dry landfill disposal.
How does horizontal drilling improve dewatering?
Horizontal drilling improves dewatering by allowing for longer, more effective drain installations within coal ash basins, leading to faster and more efficient pore water extraction.
What methods are used for pore water extraction?
Methods for pore water extraction include Ellingson-DTD's patented horizontal directional drilling (HDD) technology, which installs drains to passively discharge water from coal ash basins.
What results were observed in the Indiana pilot study?
The Indiana pilot study observed successful pore water extraction, with the installed well passively discharging 10-20 gpm and maintaining 15 gpm after five months.
How does coal ash management impact groundwater?
Coal ash management significantly impacts groundwater. Improper handling can lead to contamination from heavy metals and other toxins, affecting water quality.
What equipment is essential for coal ash dewatering?
Essential equipment for coal ash dewatering includes horizontal directional drilling (HDD) technology for installing screens and pumps for pore water extraction.
What challenges are faced in coal ash dewatering?
Challenges in coal ash dewatering include slow, unsafe, and costly methods. Traditional approaches often struggle with efficiency and environmental compliance.
How can utilities benefit from dewatering solutions?
Utilities benefit from dewatering solutions by achieving faster, safer, and more affordable management of coal ash, aiding in regulatory compliance and dry landfill disposal.
What innovations are emerging in coal ash management?
Innovations in coal ash management include advanced dewatering techniques like horizontal directional drilling, enabling faster, safer, and more cost-effective solutions for managing coal ash basins.
