Tri-County Drilling, Inc. was founded by Sheryl Peterson 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)
- 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, Vapor Wells, Lysimeters, Inclinometers, Extensometers
- Well Development and Testing by Pumping, Surge Blocking, Bailing and Air Lift
- Limited Access Coring, Air Percussion, Hollow Stem Auger, and Angle Drilling
- Geoprobe Direct Push/Probe Drilling and Sampling
- Off Road Drilling with All Terrain Rig; Helicopter Portable Drill Rigs
- Geothermal Wells up to 380 ft
- Residential and Commercial Water Wells up to 1500 ft.
- Cathodic Protection Anodes
Our inventory of drilling rigs feature hollow stem auger capabilities to 300 feet and mud rotary, air percussion and rock core drilling to depths up to 1600 feet. Our typical project profile includes:
- Domestic and Commercial Water Wells and Geothermal wells
- 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
- Helicopter Portable Drilling rigs capable of auger, mud rotary, rock coring and air percussion
- Steep Terrain and Limited Access Hollow Stem Auger, Mud Rotary, Coring and Air Percussion Drilling
- Permeability Testing, Aquifer Testing, Percolation Tests
- Installation of Cathodic Protection Wells by Air Rotary or Mud Rotary
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.