For more than 20 years, AWT Environmental has delivered reliable drilling and injection services to help customers meet their remediation goals. From direct push to hollow stem auger and air rotary methods, our fleet and expertise have supported projects of all sizes. Since 2017, we’ve also managed thousands of feet of sonic drilling through subcontractors. Now, with the addition of the Terra Sonic TSI 150CC track-mounted 50K sonic drill rig, AWT can provide sonic drilling services directly—bringing even greater value and consistency to our customers.
This investment represents more than new equipment. It reflects our commitment to enhancing outcomes, reducing uncertainty in difficult conditions, and ensuring the same high level of service across every drilling method we offer.
Why Sonic Drilling Matters
Every drilling approach has strengths, and sonic adds another powerful option to AWT’s toolbox. It is especially effective in complex geology and when high-quality samples are essential.
The key advantage is that sonic is a fully cased system. As the drill string advances, a retrievable outer casing supports the borehole and isolates it from collapsing formations, groundwater-bearing zones, or impacted areas. This provides:
- High-quality samples – Consistent, intact cores from the base of the tool string.
- Reduced waste – Less investigative derived waste (IDW), lowering disposal costs and simplifying logistics.
- Reliable performance in difficult conditions – Steady advancement through cobbles, boulders, or weathered bedrock.
- Deeper access – The ability to install wells and characterize conditions hundreds of feet below grade.
The TSI 150CC’s 50K sonic head ensures dependable performance under the most difficult subsurface conditions. For customers, that means fewer delays, better data, and confidence that project goals will be met.
Real-World Applications
Sonic drilling is particularly valuable when accuracy, speed, or access through difficult materials are critical. One common use is remedial injection where direct push isn’t feasible and permanent wells aren’t desirable.
On a recent project, AWT encountered a site capped with 20 feet of Portland-stabilized soil over a glacial till. The treatment zone lay beneath the till, making access challenging. Sonic drilling allowed us to penetrate the cap, advance through the till, and deliver remedial materials into the deeper target zone. The result was both technically successful and efficient in time and cost.
For customers, sonic drilling expands treatment options in challenging settings, produces more reliable injection results, and ultimately supports faster progress toward site closure.
Meeting Customer Expectations
For years, AWT coordinated with sonic subcontractors when projects required it. While effective, many customers asked for a more streamlined option—sonic drilling delivered with the same standards of service, communication, and accountability they already expect from AWT.
By bringing sonic drilling in house with the TSI 150CC, we can now manage every aspect—from planning to execution—without subcontracting variability. This strengthens our full-service approach: Our drilling division now fully supports site services and systems divisions, as well as delineation and in-situ injection projects.
Coupled with our waste hauler licenses in NJ, NY and PA, we can manage every piece of IDW generated during these projects. The result is a seamless, end-to-end service offering that saves customers time, reduces coordination needs, and delivers consistent quality.
A Long-Term Vision
Adding the TSI 150CC is part of AWT’s broader vision to remain a leader in remediation by continually investing in equipment, methods, and expertise that improve outcomes.
For customers, it means greater confidence that no matter the project’s complexity, AWT has the right tools and team to get the job done. With the Terra Sonic TSI 150CC in our fleet, AWT is proud to offer another proven pathway to successful, efficient, and cost-effective remediation.
Contact our team today to discuss your site challenges and explore how our in-house drilling services can help you move closer to site closure.