A Drilling Company

A Drilling Company, LLC (ADC) was founded in July of 2019. Our goal is to be synonymous with A+ workmanship, expertise and service.

Based in Plain City, Ohio, ADC has proudly served clients across Ohio, Michigan, West Virginia, Indiana, Minnesota, Kentucky and Pennsylvania. Our team’s experience extends far beyond these states, bringing a wealth of expertise to every project we undertake.

ADC primarily provides geotechnical and environmental drilling services.  See our detailed drilling services below. ADC is a Registered Private Water Systems Contractor, offering professional water well sealing and abandonment services. We adhere to all state and local regulations to ensure wells are properly decommissioned, protecting groundwater resources and maintaining environmental integrity.

ADC also conducts in house SPT Hammer Calibrations to keep our rigs qualified for ODOT projects and give you the best N60 data possible.

We are fielding a Track Mobile B-57, Track AMS Power Probe 9410, Geoprobe 7720 and a ATV Buggy Rubber Tire CME550x.

• B-57 Rubber tracked unit for added maneuverability options over steel tracks
• CME-550X balloon tire ATV
• Hollow stem auger drilling with 2.25”, 3.25”, 4.25”, 6.25”, 8.25” ID Augers.
• Traditional wells up to 6” diameter
• Double nested wells to separate upper and lower GW zones
• SPT Auto Hammer for split spoon sampling
• Air rotary with roller bits for monitoring points set into bedrock
• Rock coring with NQ 5 ft run wireline system with water or air
• Casing advancer and HQ diameter casing
• Slope inclinometer, vibrating wire piezometer, piezometer, monitoring well and recovery well install

• Direct push soil sampling with dual tube and macro-core systems
• Soil vapor points in temporary or permanent variations
• 1.5”, 2.25”, 3.25” and 3.75” diameter direct pushrods
• Direct push tooling for installs of ¾”, 1” and 2” monitoring wells, pre-pack, and standard variety
• SPT auto hammer and auger motor for split spoon sampling
• Auger motor can spin up 4.25” ID augers to approx. 30’ for traditional well install

Albert Chuang is a co-owner of A Drilling Company.  He has worked as a staff scientist/field technician at two environmental consulting firms.  This is where he converted the academic studies from The Ohio State University to be a seasoned field geologist.  Albert handled groundwater, surface water sampling, petroleum remediation systems, product recovery and soil logging.  He then moved to a management position with another drilling firm overseeing a dozen crews.  Albert has successfully bid, managed, and closed out thousands of drilling projects with many companies from small scale to multinational.  Albert has a cumulative 10 years of experience in the industry.

Alex Unverzagt is a co-owner of A Drilling Company. He has worked as a senior driller with the ability to operate all types of drilling machines using the most advanced methods. Alex has drilled hundreds of projects over the course of 10 years.  Notable projects include drilling a 6” steel double cased well through the overburden to set a monitoring point into bedrock at 250’.  Mud rotary drilling to 150’ inside a building, where the client cut a small hole in the roof to fit the drill rig mast.  Alex is a licensed driller in multiple states and is always striving to increase the tally.