Hollow Stem Auger Drilling Services
Reliable Hollow Stem Auger Drilling for Environmental & Geotechnical Projects
Hanlon Drilling provides professional hollow stem auger (HSA) drilling services for environmental, geotechnical, and construction projects. Our experienced drilling crews deliver accurate, efficient subsurface access while maintaining the integrity of soil formations, making hollow stem auger drilling one of the most versatile methods for site investigations and monitoring well installations.
With modern equipment and a commitment to safety, Hanlon Drilling supports engineering firms, environmental consultants, municipalities, developers, and industrial clients with dependable drilling solutions tailored to project requirements.
What Is Hollow Stem Auger Drilling?
Hollow stem auger drilling uses continuous-flight augers with a hollow center that allows drilling without circulating drilling fluids. The hollow stem acts as a temporary casing, helping stabilize the borehole while protecting unconsolidated formations from collapse.
Once the desired depth is reached, soil sampling equipment, groundwater sampling tools, or monitoring well materials can be installed directly through the hollow center of the auger before it is withdrawn.
This method provides excellent borehole stability while minimizing cross-contamination between soil layers.
Common Applications
Hanlon Drilling performs hollow stem auger drilling for a wide range of projects, including:
- Environmental site assessments
- Phase I and Phase II investigations
- Monitoring well installation
- Groundwater investigations
- Soil sampling and classification
- Geotechnical borings
- Construction site evaluations
- Landfill investigations
- Brownfield redevelopment
- Industrial and commercial property assessments
Our Hollow Stem Auger Capabilities
Our crews are equipped to complete projects efficiently while meeting the specifications of engineers, consultants, and regulatory agencies.
Services include:
- Continuous hollow stem auger drilling
- Split spoon sampling (SPT)
- Shelby tube sampling
- Soil classification sampling
- Monitoring well installation
- Temporary well installation
- Groundwater sampling support
- Borehole abandonment and sealing
- Site documentation and drilling logs
- Benefits of Hollow Stem Auger Drilling
Hollow stem auger drilling offers several advantages over other drilling methods:
- Excellent borehole stability in unconsolidated soils
- No drilling fluids required
- Reduced risk of formation contamination
- Efficient installation of monitoring wells
- High-quality soil sample collection
- Suitable for environmental and geotechnical investigations
- Cost-effective for many subsurface exploration projects
Safety and Quality You Can Count On
Every project is completed with a strong focus on safety, environmental responsibility, and quality workmanship. Hanlon Drilling follows established drilling procedures and works closely with project engineers and environmental professionals to ensure accurate results and regulatory compliance.
Our experienced operators understand the importance of protecting sample integrity while maintaining efficient project schedules.
Industries We Serve
Hanlon Drilling provides hollow stem auger drilling services for clients across numerous industries, including:
- Environmental consulting
- Civil engineering
- Geotechnical engineering
- Commercial development
- Industrial facilities
- Municipal infrastructure
- Transportation
- Utilities
- Government agencies
- Real estate development
