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INNOVATION  |  Yesterday • Today • Tomorrow

What began as a vision between two friends more than 30 years ago has developed into a company that produces industry-preferred technical drilling equipment sold around the world. Our customers throughout the history of drilling have pushed us, encouraged us, and held us accountable along the way. 

From day one, we have strived to be innovative. It is a part of our past and a part of our future. The result is the development of new technology and a continuously improving line of tooling and drilling rigs that helps those same customers grow their business. The timeline below takes a look at our innovations throughout the history of drilling.


1987

Geoprobe® Founders - Mel Kejr and Tom Christy

Geoprobe® Founders - Mel Kejr and Tom Christy

First Prototype Manufactured

First Prototype Manufactured
1988

Geoprobe® Name Chosen as Brand

Geoprobe® Name Chosen as Brand

Exhibited at First Trade Show

Exhibited at First Trade Show

1.0 in. Probe Rod

1.0 in. Probe Rod
INDUSTRY FIRST

Geoprobe® SK58 Percussion Hammer

Geoprobe® SK58 Percussion Hammer
1989

1.0 in. probe rods and Geoprobe® 8A

1.0 in. probe rods and Geoprobe® 8A

Geoprobe® 8A mounted in a Dodge pickup

Geoprobe® 8A mounted  in a Dodge pickup
1990

Standard (Probe-Drive) Soil Sampler

Standard (Probe-Drive) Soil Sampler

Mill-Slotted Well Point

Mill-Slotted Well Point
INDUSTRY FIRST
1991

Geoprobe® GH40 Percussion Hammer

Geoprobe® GH40 Percussion Hammer
INDUSTRY FIRST

Geoprobe® Post Run Tubing

Geoprobe® Post Run Tubing

Geoprobe® Large Bore Soil Sampler

Geoprobe® Large Bore Soil Sampler
1992

Geoprobe® 8M Mobile Laboratory

Geoprobe® 8M Mobile Laboratory

Geoprobe® Manufacturing

Geoprobe® Manufacturing
1993

Macro-Core® Soil Sampling System

Macro-Core® Soil Sampling System
INDUSTRY FIRST

Direct-Drive Electrical Sensor Probe

Direct-Drive Electrical Sensor Probe

Geoprobe® Model 5400, 4200 and 4220

Geoprobe® Model 5400, 4200 and 4220
1994

First Soil Conductivity System Sold

First Soil  Conductivity System Sold
1995

PC100 Cargo Box

PC100 Cargo Box

Screen Point 15 Groundwater Sampler

Screen Point 15 Groundwater Sampler
INDUSTRY FIRST
1996

Membrane Interface Probe (MIP) Introduced

Membrane  Interface Probe (MIP) Introduced
INDUSTRY FIRST

Geoprobe® Rod Grip Puller

Geoprobe® Rod Grip Puller

GS1000 Grout Machine

GS1000 Grout Machine
1997

Geoprobe® Dual Tube 21 (DT21) Soil System

Geoprobe® Dual Tube 21 (DT21) Soil System

MC Liner Cutter

MC Liner Cutter

SC400 Soil Conductivity Probe

SC400 Soil Conductivity Probe
1998

Geoprobe® GH60 Percussion Hammer

Geoprobe® GH60 Percussion Hammer
INDUSTRY FIRST

Drop Hammer Developed for 66 Series Machines

Drop Hammer Developed for 66 Series Machines
1999

Augerhead for 66 Series Machines

Augerhead for 66 Series Machines

Geoprobe® Prepacked Screen Monitoring Well

Geoprobe® Prepacked Screen Monitoring Well

Geoprobe® DT32

Geoprobe® DT32
2000

Geoprobe® 5410

Geoprobe® 5410
2001

1,000th Geoprobe® Unit Completed

1,000th Geoprobe® Unit Completed

Direct Push Days – NJ

Direct Push Days – NJ
2002

Geoprobe® DT21 Liners with Integrated Core Catchers

Geoprobe® DT21 Liners with Integrated Core Catchers
2003

Geoprobe® Mechanical Bladder Pump

Geoprobe® Mechanical Bladder Pump
2004

Geoprobe® Hydraulic Liner Extruder

Geoprobe® Hydraulic Liner Extruder

Geoprobe® Macro-Core® MC5 Soil Sampling System

Geoprobe® Macro-Core® MC5 Soil Sampling System
2005

Geoprobe® 7730DT

Geoprobe® 7730DT

Lightweight 1.25 in. Center Rods

Lightweight 1.25 in.  Center Rods
2006

Geoprobe® DT325 Soil Sampling System

Geoprobe® DT325 Soil Sampling System

Hydraulic Profiling Tool Introduced

Hydraulic Profiling Tool Introduced
INDUSTRY FIRST

Geoprobe® 7720DT

Geoprobe® 7720DT
2007

Geoprobe® DT45 Soil Sampling System

Geoprobe® DT45 Soil Sampling System
2008

Geoprobe® Rear Blade and Drop Rack System

Geoprobe® Rear Blade and Drop Rack System
INDUSTRY FIRST
2009

Geoprobe® 7822DT

Geoprobe® 7822DT

Geoprobe® MIP Heated Trunkline

Geoprobe® MIP Heated Trunkline
2010

Geoprobe® 6622CPT

Geoprobe® 6622CPT

Geoprobe® 8140LS, GV4 Sonic Head

Geoprobe® 8140LS, GV4 Sonic Head

2nd Open House at Geoprobe®

2nd Open House at Geoprobe®
2011

Geoprobe® Sonic SDT45 & SDT60

Geoprobe® Sonic SDT45 & SDT60

Geoprobe® 7800

Geoprobe® 7800

Geoprobe® GH64 Percussion Hammer

Geoprobe® GH64 Percussion Hammer
2012

MiHpt

MiHpt
INDUSTRY FIRST

3rd Open House at Geoprobe®

3rd Open House at Geoprobe®
2013

Bottom-Up Grout Adapter for Membrane Interface Probe (MIP)

Bottom-Up Grout Adapter for Membrane Interface Probe (MIP)
2014

4th Open House at Geoprobe®

4th Open House at Geoprobe®

Geoprobe® 3230DT Combo Rig

Geoprobe® 3230DT Combo Rig

Geoprobe® 8150LS, GV5 Sonic Head

Geoprobe® 8150LS, GV5 Sonic Head
2015

Geoprobe® Sonic Weighted Wireline

Geoprobe® Sonic Weighted Wireline
INDUSTRY FIRST
2016

Geoprobe® Optical Image Profiler (OIP)

Geoprobe® Optical Image Profiler (OIP)

Geoprobe® Spring Assisted Swivel Lift Cap

Geoprobe® Spring Assisted Swivel Lift Cap

Geoprobe® Sonic Indexing Rack

Geoprobe® Sonic Indexing Rack
2017

DRILLMAX® Purchased

DRILLMAX® Purchased

Geoprobe® 20CPT Press

Geoprobe® 20CPT Press

Geoprobe® Interlocking Split Spoon Sampler

Geoprobe® Interlocking Split Spoon Sampler
2018

Geoprobe® 3100GT & 150GT Geotech Rigs

Geoprobe® 3100GT & 150GT Geotech Rigs

Geoprobe® 7822DT V3

Geoprobe® 7822DT V3

5th Open House at Geoprobe®

5th Open House at Geoprobe®
2019

DRILLMAX® by Geoprobe® DM450

DRILLMAX® by Geoprobe® DM450
2020

Geoprobe® 3126GT

Geoprobe® 3126GT
2021

Geoprobe® 6011DT

Geoprobe® 6011DT

East Coast Service Center Opened

East Coast Service Center Opened

Geoprobe® Seismic CPT

Geoprobe® Seismic CPT

Geoprobe® 3145GT

Geoprobe® 3145GT
2022

DRILLMAX® by Geoprobe® DM650

DRILLMAX® by Geoprobe® DM650

DM250 on Ford Chassis

DM250 on Ford Chassis

GW Screen Point Latching Samplers

GW Screen Point Latching Samplers
2023

DRILLMAX® by Geoprobe® DM650 Air

DRILLMAX® by Geoprobe® DM650 Air

Geoprobe® SRC30DT Sonic Rod Carrier

Geoprobe® SRC30DT Sonic Rod Carrier

Direct Image® CPT Astra & CPT Astra15

Direct Image® CPT Astra & CPT Astra15

Contact Us

1835 Wall Street
Salina, Kansas 67401
Phone: (785) 825-1842