The Experts in Horizontal Remediation Wells 

Mike and Kathy Sequino founded Directional Technologies to apply horizontal directional drilling to difficult underground challenges in the environmental and utility industries.

DTI installed horizontal wells at New York’s John F. Kennedy International Airport.  The Port Authority of New York and New Jersey selected DTI to install test wells to determine the feasibility of using horizontal wells. Based on the success of this project, more than 50 horizontal wells totaling more than 50,000 feet have been installed under the airport. At that time, it was the largest remediation project in the world using horizontal remediation wells. This was the first use of mid-sized rigs, which is responsible for the industry as we know it today.

Bio-Genesis Inc. was contracted to design a system for performing in situ bioremediation of soil and groundwater under two homes. Directional Technologies, Inc. was selected as the drilling company for these horizontal wells. Multiple wells from 50’ to 150’ total length were installed in 2 days at a depth of 3-5’ below surface in a glacial till formation. 

Proven vertical technology transposed. Dual Phase Extraction (DPE) brought power to in-situ remediation techniques, and when performed with horizontal wells, it empowered the technology to tackle hard-to-reach plumes.

Directional Technologies presents horizontal remediation wells as a new tool to environmental professionals. The power of environmental horizontal wells vs. traditional remediation methods demonstrated that horizontal wells provided greater access to the plumes and rapidly cleaned up sites. Since that first seminar, the company has presented across the country and around the world.

DTI designed custom tooling to access a plume under a commercial building to identify the contaminant causing vapor intrusion issues.

DTI installs the first dual-purpose horizontal well at a Sunoco facility for both free product recovery and biosparging.

Directional Technologies deploys to the Twin Towers on 9/11 to assist the NYFD with searching for survivors using our HDD technology. In the wake of the September 11th attacks, the company’s expertise was enlisted to aid in the critical rescue and recovery efforts at the World Trade Center, installing essential utility conduits in one of the most challenging environments imaginable.

Aquaterra 1 6 in HDPE groundwater extraction well offset and below a 60-inch brick catch basin outflow into the Delaware River. The first time a horizontal well was used for groundwater extraction was to protect the infiltration into an existing pipe. The job was so successful that additional horizontal Wells were installed at the site over the years.

DTI goes international, with the first horizontal remediation wells installed in South Korea, accessing the source area of a former rail-yard foundry. Dream Hub is a massive $40 billion redevelopment project in the heart of Seoul, South Korea, encompassing an international business district spanning over 34 million square feet and hosting what is to be the tallest building in Asia, thus, landing Seoul on the map of cities with the world’s tallest skyscrapers.  The site for this redevelopment formerly served as the rail yard foundry and locomotive maintenance center for Korea Rail (KORAIL) for over 100 years, resulting in significant environmental impacts on both soil and groundwater throughout the site.

Mike Sequino presented Horizontal Remediation Wells (HRW): Transferring Effective Technologies From the Oil Industry to Environmental Remediation demonstrated the techologies abilitiy to continue business operations, get to the source, lower the cost per volume of treated soil, more efficiently deliver and recover, and the flexibility of multiple uses for one horizontal conduit.

Directional drilling to the rescue! This project solved a long-time problem of water main breaks for the City of Gloucester by installing a new main under the Annisquam River.

Gloucester, MA, a city split in half by the Annisquam River, has had a notorious history of water main breaks, leaving parts of the city without H2O for extended periods. Desperate to solve this long-time problem, the city of Gloucester is working with the prime contractor Aqua Line Utility Contractors and the directional drilling company Directional Technologies, Inc. to install a 1,200-foot PVC (polyvinyl chloride) water main pipe in hopes of solving their water worries once and for all. While this $2.5 million project initially may have left some tax payers wary, the new water main has already proved to not only be money well spent, but also be the solution to their problems.

Directional Technologies receives the prestigious National Association of Environmental Professionals (NAEP) Environmental Excellence Award for Best Available Technology, recognizing their groundbreaking remediation work (Horizontal AS/SVE) at a major international airport.

Learn more here: https://www.naep.org/index.php?option=com_content&view=article&id=222:eea2015awardrecipients&catid=19:site-content

During the summer of 2017, Directional Technologies, Inc. was provided with the unique opportunity to partner with several Australian and American companies to successfully design and install horizontal remediation wells (HRWs) at a chemical manufacturing facility in Sydney.

The target zone for soil vapor extraction was approximately 30 feet below ground surface.  The original remedial design specified a grid of 32 total vertical SVE wells.  When combined with the connective piping required to connect all the proposed vertical wells to the system location, the vertical well design would be a highly invasive remedial approach, which would prevent redevelopment of the site.

The company solves a challenging conduit installation in Connecticut during frozen conditions.

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