Company Profile
Tri-County Drilling, Inc. was founded in 1987 to provide environmental
and geotechnical drilling services to Southern California. As a woman-owned business, Tri-County
Drilling is a certified WBE/DBE Contractor and has served as a Subcontractor on numerous government
projects. Since its inception, Tri-County Drilling has rapidly expanded its scope of available
services to provide state-of-the-art equipment and trained personnel for our clients. Our personnel
have completed the 40-hour OSHA training course and refresher courses as well as numerous seminars
and classes in rig safety and innovative techniques. Medical monitoring is also provided annually.
Our drilling capabilities include:
Hollow Stem Auger Drilling
Mud Rotary, Air Percussion and Air Rotary Drilling, ODEX Casing Advance
HQ and NX Diamond Core Drilling by Wireline and conventional methods (single and dual tube) using air or fluid circulation mediums
Continuous Sampling, Drive Sampling, Shelby Tube Sampling, Standard Penetration Tests
Wireline Single and Straddle Packer Testing
Well Destruction, Grouting
Permeability Testing, Aquifer/Pump Testing
Installation of Monitoring Wells and Water Wells
Well Development and Testing by Pumping, Surge Blocking, Bailing and Air Lift
Air Percussion, Hollow Stem Auger, and Angle Drilling
Geoprobe Direct Push/Probe Drilling and Sampling
Horizontal Water Wells and Borings
Our inventory of drilling rigs feature hollow stem auger capabilities to 300 feet and mud rotary
drilling to depths of up to 1600 feet. Our typical project profile includes:
Thermacouple™ Ground Source Earth Energy System
Domestic and Commercial Water Wells, Vertical and Horizontal
Installation and Development of Hazardous Materials Monitoring Wells
Installation of Deep Inclinometer Casing in Hard Rock Conditions
Geotechnical Borings, Rock Coring, Excavation of Test Trenches
Dual Tube, Casing Advance Using Air Percussion Methods
Permeability Testing, Aquifer Testing, Percolation Tests
Mud Rotary and Air Percussion Drilling
Installation of Cathodic Protection Wells by Air Rotary or Mud Rotary
We believe that our diverse experience, drilling capabilities, trained personnel, and modern
equipment make Tri-County Drilling, Inc. uniquely qualified to provide unparalleled customer service
as well as the latest technology in the field of environmental/geotechnical drilling.
If you would to request additional information or a quote, please use our Contact Form.