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Fill out the form below for more information. You can also call us at 785-825-1842.
Our mailing address is 1835 Wall St., Salina, Kansas 67401.
PFAS: Per- and Poly-Fluoroalkyl Substances Sampling Protocols and Issues
PFAS compounds have been “emerging contaminants” for a few years now. It seems this last year has reached a critical point for environmental investigation and sampling for this large group of fluorinated polymers. The number of calls we receive about sampling for PFAS has steadily increased during the last two years. Many groups and agencies have been releasing guidance documents about PFAS compounds and PFAS sampling protocols (see geoprobe.com/PFAS).

PFOS = perfluorooctane sulfonate, yellow - carbon, teal - flourine, purple - oxygen, red - hydrogen, green - sulfer
What are PFAS?
PFAS consist of a large group of fluorinated polymers used in many commercial and industrial products. This includes any of the Teflon® polymers used in common household products like your frying pan, PTFE plumber’s tape, your Goretex-lined rain coat, or the water/stain resistant coating on your carpet or couch. One of the primary concerns for these polymers relates to Aqueous Fire Fighting Foams (known as AFFF, AF3, or A triple F). The Department of Defense (DOD) has used these foams to fight/control fires at air bases and also used in fire training. Many commercial airports and some municipal fire departments have also used AFFF. These fire-fighting foams contain several of the PFAS polymers, including PFOA and PFOS.
EPA Guidelines
The Federal Environmental Protection Agency (EPA) has set a Health Advisory Level for PFOA + PFOS at 70 parts per trillion – yes, parts per trillion. This advisory level is about 100 times lower than any previous maximum contaminant level set by the EPA. This means that the potential for cross contamination of samples by commonly used products during field sampling becomes a significant concern. These products range from the Rite-in-the-Rain notebooks, to Tyvek suits, sunscreen, bug spray, Teflon® liners of many sample bottle caps, and more.
Geoprobe® Sampler Analysis and Advice
A few laboratories have started programs to verify whether many of these products are truly a significant concern for PFAS cross-contamination. Jennifer Field, Ph.D., at Oregon State University (OSU) leads one of the research teams. Geoprobe® submitted samples of our clear PVC soil liners and lay flat liners used for sonic soil sampling to OSU. Field’s team analyzed the Geoprobe® soil liners for 24 PFAS analytes, including PFOS and PFOA. Field and her team are preparing to publish the results of their analyses soon. Geoprobe® will provide links to the article on our webpage as soon as we learn it has been published.
Preliminary results indicate all of the Geoprobe® soil liners are below the reporting limit for all 24 PFAS compounds for which they were tested. These results are for a single sampling event, so we get a snapshot in time about PFAS results for the liners.
Geoprobe® recommends you conduct periodic field rinsate samples of tools and soil liners during your PFAS sampling projects. You must use PFAS free water provided by your laboratory for this purpose. Tap water or bottled water may have been in contact with PFAS containing materials such as Teflon® tape or PTFE containing pipe joint compound. Of course, use bottles (HDPE or Polypropylene) provided by your lab for the PFAS field rinsate samples.
The steel components of soil samplers and groundwater sampling tools do not contain PFAS compounds. Use of these tools for PFAS sampling and investigation following standard procedures is appropriate. Be careful to NOT use materials like Teflon® tape or PTFE joint compound on joints or fittings that will have sample contact. Don’t use Teflon® soil liners or tubing in your sampling for PFAS. Use the clear PVC soil liners when soil sampling or HDPE or polypropylene tubing when groundwater sampling. The DOD has recommended the use of silicon-based plumbers paste and O-rings in place of Teflon® products. Also, the DECON 90 product contains PFAS components so use decon soap and water approved for PFAS sampling. We are all coming up the PFAS learning curve. As the entire industry continues to learn about PFAS sampling, analysis, and remediation, updates and revisions to guidance documents and operating procedures will be issued.
Links
https://www.epa.gov/ground-water-and-drinking-water/drinking-water-health-advisories-pfoa-and-pfos
https://pfas-1.itrcweb.org/fact-sheets/
https://www.epa.gov/water-research/pfas-methods-and-guidance-sampling-and-analyzing-water-and-other-environmental-media
https://www.epa.gov/sites/production/files/2019-02/documents/pfas_methods_tech_brief_28feb19_update.pdf
https://www.michigan.gov/pfasresponse/0,9038,7-365-86510_87154-469832--,00.html
https://www.waterboards.ca.gov/pfas/docs/march_pfas_sampling_guidelines.pdf
Probing Times Articles
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Customer Service Plus 3230DT Equal Rapid Growth for Hawkston LLC
After a couple years working as a consultant alongside drilling companies, Cory Walker gained key insights into what consultants need and a deep understanding of the goals...
Probing Times Spring 2019 |
W2 Engineering Offers Geotech Drilling Services with 3100GT
Started in 2012 as a geotechnical and materials testing firm, W2 Engineering, Oklahoma City, subcontracted a lot of its drilling...
Probing Times Spring 2019 |
3100GT Features You Should See for Yourself
Almost immediately after my return to Geoprobe® I was tossed the keys to our demo 3100GT and told to “go run it."
Probing Times Spring 2019 |
Safe, Easy Operation Makes 3100GT Ideal for New Drillers, State Agencies
Cost-efficient mobilization, safety features and ease of operation have made the 3100GT a valuable rig for training new drillers while providing the operating versatility and comfort desired by experienced drillers.
Probing Times Spring 2019 |
Combination Drilling Rig Impresses Field Crews at Field Demos
While seeing a new machine all shiny and new in a convention center can be impressive, witnessing a machine doing the actual work reveals its true potential...
Probing Times Spring 2019 |
More and More, Customers Choose Geoprobe® 3.75-inch Rod for Variety of Applications
It's now possible to collect SPT data via split spoon sampler and automatic drop hammer within the same 3.75-inch driven casing...
Probing Times Spring 2019 |
Terracon History Sets Foundation for Geotechnical Future
Terracon’s intrusive exploration and sampling methods include hollow stem augering, mud and air rotary, rock coring, and direct push...
Probing Times Spring 2019 |
Productivity Push Leads EGS to 20CPT
With drilling services focused predominantly on infrastructure investigations – roadways and bridges – Environmental and Geotechnical Specialists Inc...
Probing Times Spring 2019 |
Geoprobe® No Stranger to CPT Advantages
With constant pressure to become more cost-efficient, engineers are opting to become more sophisticated in their sampling methods...
Probing Times Spring 2019 |
Gregg Drilling LLC Spends Time on Ice
Gregg Drilling LLC of Signal, California, spent time indoors this winter. But that doesn’t necessarily mean they were staying warm...
Probing Times Spring 2019 |
The Best Version Yet: 7822DT V3 Builds on Tradition of Excellence
Known for providing power and versatility, the Geoprobe® 7822DT V3 builds upon this tradition with elevated efficiency and minimized maintenance...
Probing Times Spring 2019 |
Variety Key to Business for Cenozoic
With a bachelor’s degree in geophysics from the University of California Santa Barbara, Jeff Harra’s interest in mining geology, geologic hazards, and equipment design...
Probing Times Spring 2019 |
Atlantic Testing Expands Customer Base
Diversity is a driving force for Atlantic Testing Laboratories Limited (ATL). From diverse office locations to services, ATL has found stability...
Probing Times Spring 2019 |
EWI's Entrepreneurial Spirit Soars with Geoprobe® Sonic 8150LS
To complete primarily environmental, geothermal and cathodic drilling, EWI’s Springfield office started with two Geoprobe® 6620s...
Probing Times Spring 2019 |
GeoTek Alaska Sonic Succeeds at Subzero
Using a Geoprobe® 8150LS rotary sonic, GeoTek Alaska drills at -38 degrees Fahrenheit in alluvial sands and gravels of the Tanana Basin near Fairbanks, Alaska...
Probing Times Spring 2019 |
Sonic Secures Pot of Gold for M&W Drilling
Rather than continue turning down job requests because they didn’t have a sonic rig, M&W Drilling (MWD) in Knoxville, Tennessee, decided two years ago it was time to get into sonic drilling...
Probing Times Spring 2019 |
Carbide Sonic Bits
Throughout the years Geoprobe® has accumulated feedback on how sonic bits wear during their lifetime. Our tooling engineers took this information..
Probing Times Spring 2019 |
The Face Behind the Friendly Geoprobe® Greeting
She is the familiar voice you hear when you call the main Geoprobe® number. Whether to order tooling, work through a service challenge...
Probing Times Spring 2019 |
Geoprobe® Service Offers Multiple Options
The goal of Geoprobe® service is to provide the best equipment service support in the drilling industry. Understanding the difficult job our customers...
Probing Times Spring 2019 |
Southeast Service Shop in Florida Keeps Customers in the Field
One year ago Todd Ewing and his family relocated from Kansas – bringing more than 10 years of Geoprobe® service experience – to open the southeast service shop in Ocala, Florida...
Probing Times Spring 2019 |
Lightweight, Compact DM450 Water Well Rig
For more than 20 years DRILLMAX® has been providing drillers with the model DM450 rotary rig. Primarily utilized to complete residential water wells...
Probing Times Spring 2019 |
Favorite Features on the DM250 Water Well Rig
The perfect rig for 2 to 6-inch shallow water wells.
Probing Times Spring 2019 |
PFAS: Per- and Poly-Fluoroalkyl Substances Sampling Protocols and Issues
PFAS compounds have been “emerging contaminants” for a few years now. It seems this last year has reached a critical point for environmental investigation...
Probing Times Spring 2019 |
Using Hydraulic Profiling Tool (HPT) to Estimate Groundwater Specific Conductance
Geoprobe® HPT is becoming one of the most common direct push logging tools used in site characterization. An HPT port is now included on ALL MIP...
Probing Times Spring 2019 |
Geoprobe® Participates on ITRC Team for Implementing ASCT
The Interstate Technology and Regulatory Council (ITRC) is a state led coalition working to encourage the use of innovative technology and methods to reduce...
Probing Times Spring 2019 |
DT22 Detent Drive Head Helps Increase RAZEK's Efficiency
Founded in 2004, RAZEK Environmental LLC in Louisburg, Kansas, operates as a Geoprobe® direct push technology subcontractor...
Probing Times Spring 2019 |
Multiple Sizes of Spring Assisted Swivel Pull Caps Reduce Operator Fatigue
Control of the winch line tension by the springs in the cap creates natural alignment and prevents binding of threads – making threading and unthreading rods quicker...
Probing Times Spring 2019 |
COMING SOON: 3-inch Interlocking Split Spoons
Customers asked, and Geoprobe® tooling engineers have delivered. The interlocking split spoon everyone has grown to love will soon be available in a 3-inch OD version...
Probing Times Spring 2019 |
Geoprobe® Releases Two New Geotechnical Sampling Rigs
On many geotech sites, the need for speed and efficiency is of the utmost importance. Geoprobe® has released two new geotech sampling rigs...
Probing Times Spring 2018 |
Nebraska DOT: 3230DT is an all-inclusive timesaver
The Nebraska Department of Transportation found exactly what it was looking for with the 3230DT...
Probing Times Spring 2018 |
2060CPT makes field jobs efficient, comfortable
The Geoprobe® 2060CPT is a 20-ton-rated, static push Cone Penetration Testing platform that allows users to maximize their efforts...
Probing Times Spring 2018 |
20 CPT Press now available with skid steer configuration
The 20 CPT Press from Geoprobe® is a flexible mast option with a 20-ton push capacity...
Probing Times Spring 2018 |
3230DT in Texas: Advances CPT Nicely
I’ve been operating the 3230DT since its release and the capabilities continue to impress me...
Probing Times Spring 2018 |
7822DT V3 goes into production
When the Geoprobe® Engineering Team released the first 7822DT product in the spring of 2009, we had a good feeling...
Probing Times Spring 2018 |
Geoprobe® 8150LS Makes Deep Wells a Breeze for GFA International
The 8150LS sonic drill rig quickly proved itself to GFA International, Inc., while drilling in complex conditions...
Probing Times Spring 2018 |
Open House 2018 Recap
Our fifth Geoprobe® Open House is in the record books and we couldn’t have asked for a better day full of sunshine and excitement...
Probing Times Spring 2018 |
DRILLMAX® DM250 Water Well Rig Makes Debut
In 2017, DRILLMAX® joined Geoprobe®. Bringing companies together is real work, but we are already starting to see new positives emerge...
Probing Times Spring 2018 |
Damasco Penna values reliability, versatility
Damasco Penna, a geotechnical engineering company based in São Paulo, Brazil, have been expanding their Geoprobe® fleet since 2008...
Probing Times Spring 2018 |
No CDL Required: Saves Customers Money & Hassle
Geoprobe® continues to engineer machine configurations that allow drilling companies to mobilize to and from projects without the use of a CDL..
Probing Times Spring 2018 |
DT22 Detent Drive Head Makes Soil Sampling Faster & Easier!
Geoprobe® has developed an all new drive head for the DT22 Soil Sampling System – making an already efficient system even faster and easier...
Probing Times Spring 2018 |
VIMS uses 66DT to peer into the past, plan for the future
The Virginia Institute of Marine Science (VIMS) uses their 66DT to dig up the past – literally – along Virginia’s Eastern Shore barrier islands...
Probing Times Spring 2018 |
Geoprobe® 4.5 in. Heavy Duty Sonic Rods are Stronger, Last Longer
The Geoprobe® 4.5 in. heavy duty (HD) sonic drill rods are significantly stronger than their traditional counterpart and manufactured at our facility in Salina, KS...
Probing Times Spring 2018 |
MiHpt equips Parratt-Wolff with precise, real-time logging results
Parratt-Wolff effectively reduced the duration of site remediation for their clients when they introduced MiHpt into their service offerings three years ago...
Probing Times Spring 2018 |
OIP-Green Successfully Detects Coal Tar Fluorescence
The Optical Imaging Profiler (OIP) is a new direct push photo-logging system developed by Geoprobe® that uses a down hole light source...
Probing Times Spring 2018 |
Interlocking Split Spoon is Faster, 2X Stronger, and Lasts Longer
Engineered and built by Geoprobe®, our patented interlocking split spoon saves drillers both time and money...
Probing Times Spring 2018 |
Collecting SPT through 3.75 in. Driven Casing
Our customers have used the 3.75 in. probe rod and DT37 soil sampling system to collect continuous soil samples and SPT samples for several years...
Probing Times Spring 2018 |
Drillers choose 1.75 in. probe rod for size, durability
Our NEW Geoprobe® 1.75 in. probe rods are stronger, last longer, and can be used for multiple applications...
Probing Times Spring 2018 |
Geoprobe® Opens Regional Service Center in Florida
One of our main company objectives at Geoprobe® is to PROVIDE TOP SERVICE IN THE DRILLING INDUSTRY...
Probing Times Spring 2018 |
3230DT’s 80,000 lb. of pull back gives Shepler Well Drilling peace of mind
Shepler Well Drilling, Inc., of Manton, MI, was in the market for an auger rig when they set their sights on the 3230DT...
Probing Times Spring 2018 |
Limited Site Access for HD Sonic Drilling
Jim Nidzgorski, of HD Sonic Drilling in East Palestine, OH, mobilized their Geoprobe® 8140LC Rotary Sonic inside an...
Probing Times Spring 2017 |
EnviroProbe Packs Double Punch With Sonic & 3230DT
The Force is definitely with EnviroProbe Integrated Solutions, Inc., when it comes to...
Probing Times Spring 2017 |
Geoprobe® Sonic Broadens M&W Drilling’s Services
The vision at M&W Drilling, LLC, has been to aggressively expand drilling capabilities to provide a broader range of services to existing clients as well as to attract new ones..
Probing Times Spring 2017 |
Walker Hill Field Team Completes Abandonment of 48-in. Discharge Pipe
Unused since the early 1970s, a 48-in. diameter discharge pipe in a 2-million-gallon industrial wastewater lagoon...
Probing Times Spring 2017 |
Glacier Drilling Hosts ‘Sweet’ Sonic Drilling Field Demo
Glacier Drilling, in Durham, CT, designed a “Sonic Drilling Overview and Field Demonstration” course last...
Probing Times Spring 2017 |
Huss Drilling Uses Multiple Rigs at Florida Site
In the spring of 2015, Huss Drilling, Dade City, FL, embarked on a large environmental project in...
Probing Times Spring 2017 |
Understated and Over Delivered
The success of their first Geoprobe® 8140LS Rotary Sonic rig and associated tooling led McMillan Drilling to...
Probing Times Spring 2017 |
“There’s no way we’re not going to be successful!”
Dolese Brothers in Oklahoma City, OK, was founded before Oklahoma became...
Probing Times Spring 2017 |
Aztech Likes Versatility of 3230DT Rig
The 3230DT Combo Rig has seemed to ‘fill the bill’ for Aztech...
Probing Times Spring 2017 |
New Doors Open to 3230DT’s Power
Action Environmental in Tampa was approached to see if they had a drill rig large enough to handle proposed environmental work; otherwise sonic options would be pursued...
Probing Times Spring 2017 |
Whole City Bricks Found in DT60 Core
“The environmental drilling industry is a competitive market...
Probing Times Spring 2017 |
Versatility is Key for 3230DT
From rock coring at a ski resort, to performing CPT for liquefaction analysis...
Probing Times Spring 2017 |
Versatility of 7822DT Important to Geo Lab Success
While Geo Lab Drilling near Atlanta, GA, provides an array of services...
Probing Times Spring 2017 |
Eichelbergers Successfully Ventures into Water Well Market with 7822DT
Eichelbergers, Inc., in Mechanicsburg, PA, was approached by...
Probing Times Spring 2017 |
Relationships and Reliability
Since purchasing a Geoprobe® 7822DT, which was originally envisioned to...
Probing Times Spring 2017 |
Elite Techniques Credits 7822DT’s Versatility to Continued Success
Elite Techniques, in Camden, SC, has experienced substantial growth since...
Probing Times Spring 2017 |
Trinity Drilling is Growing & Building
When David Reinsma, now Owner of Trinity Drilling, first attended a Geoprobe® Open House...
Probing Times Spring 2017 |
EPI: Two Thumbs Up For Air & Mud Rotary Drilling with 7822DT
Environmental Probing Investigations, in Cream Ridge, NJ, has been...
Probing Times Spring 2017 |
Leaking CPT Holes Cause Problems
An artesian effect was causing a problem...
Probing Times Spring 2017 |
7822DT Meets Required Checklist for Holocene Drilling’s Urban Needs
Holocene Drilling, Inc., servicing the Seattle, WA, and Portland, OR, markets...
Probing Times Spring 2017 |
Landshark Drilling Continues to Grow and Develop More Geoprobe® Services
Landshark Drilling, located in southern Ontario, Canada, provides...
Probing Times Spring 2017 |
Direct Push Services in Utah Can Always Count on EDNA
Solar grids were constructed in the...
Probing Times Spring 2017 |
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7822DT & Air Rotary Success
A gas station located within the urban core of a major midwestern city was confirmed to...
Probing Times Spring 2017 |
New Electro Kinetic Remediation Technology Used in New York
EPhase 2 in Huntington Station, NY, utilized a Geoprobe® 6712DT to install...
Probing Times Spring 2017 |
Discovery Drilling Finds Right Mix
As a Driller’s Helper, and now a Driller, it didn’t take long for me to become...
Probing Times Spring 2017 |
Small Company Success Based On Great Employees and Reliable Equipment
I’m proud to celebrate 20 years as a partner of Enviro-Dynamics...
Probing Times Spring 2017 |
Summit Drilling Finds Veterans Important Asset for Company
Summit Drilling provides a wide range of...
Probing Times Spring 2017 |
Most Versatile CPT Push Platform
The 6622CPT punches way above...
Probing Times Spring 2017 |
390 Times and Not One Failure
After completing 65 borings in...
Probing Times Spring 2017 |
6620DT Keeps on Tickin’
In 2008, when Strongarm Environmental Field Services first purchased their Geoprobe® 6620DT...
Probing Times Spring 2017 |
Geo Logic Makes the Most of Their Investment
“While anyone in their right mind would...
Probing Times Spring 2017 |
ASTM Award for Wes McCall
Wes McCall, PG, Geoprobe® Environmental Geologist, will receive...
Probing Times Spring 2017 |
Multiple Options for HPT Logging
Since the release of the Hydraulic Profiling Tool (HPT) in 2006...
Probing Times Spring 2017 |
Enhanced In Situ Soil Analysis
The success of soil investigations and remediation designs is highly dependent o..
Probing Times Spring 2017 |
Demand High for Using OIP System From Vista GeoScience Clients
John Fontana, PG and President/CEO of Vista GeoScience in Golden, CO, and his direct sensing team are...
Probing Times Spring 2017 |
Optical Image Profiler (OIP)
The Optical Image Profiler (OIP) is a direct push probe that uses UV fluorescence to...
Probing Times Spring 2017 |
Searching for DNAPL Using Direct Image® Tools
2C2, Inc., in Raritan, NJ, was contracted by B
Probing Times Spring 2017 |
Mapping DNAPL With MIP
Most MIP (Membrane Interface Probe) work is performed to map...
Probing Times Spring 2017 |
32 Series: This Machine Will Produce For You!
The 3230DT and 3200 are TRUE combination machines, which means their utilization rates go up simply because they are well suited for both...
Probing Times Spring 2016 |
3230DT Fits Our Geotech Needs
Within weeks of joining the Applied Geotechnical Engineering Consultants (AGEC) drill rig lineup, they tested the limits of the...
Probing Times Spring 2016 |
Mission: Complete
In order to meet the Canadian military’s potable water needs, ALTECH Drilling and Investigative Services in Cambridge, Ontario...
Probing Times Spring 2016 |
Scenic Backdrop for Erie Lake Project
Drilling Engineers in Fort Collins, CO, designed a barge, specifically for their Geoprobe® 7822DT to complete a pre-feasibility study...
Probing Times Spring 2016 |
7822DT Arrives at Sir Sandford Fleming College
The Resource Drilling and Blasting program at Sir Sandford Fleming College welcomed their new 7822DT in January..
Probing Times Spring 2016 |
EPI Targets Air Rotary/Hammer Work for 7822DT
Tony Pressimone, Operations Manager for Environmental Probing Investigations in Cream Ridge, NJ...
Probing Times Spring 2016 |
Portable Hydraulic Rod Clamp
Get rid of the pipe wrenches and use the Geoprobe® Portable Hydraulic Clamp that can be attached to most 6620DT, 7720DT, 7730DT, 7822DT, and 6712DT machines...
Probing Times Spring 2016 |
New Technology: Commercial Release of Direct Image® OIP Logging Tool
The Direct Image® Team at Geoprobe Systems® proudly announces the commercial release of their newest Direct Image® logging tool ... the Optical Image Profiler (OIP)...
Probing Times Spring 2016 |
MIP Quickly Delineates PHC Impacts
Vertex Environmental was retained to complete a large in-situ chemical oxidation injection remediation project by the provincial government in northern Ontario, Canada...
Probing Times Spring 2016 |
I’m having problems passing the HPT Reference Test and my HPT Line Pressure is High. What’s my problem?
Soil build-up behind the HPT screen is easy to troubleshoot by removing the HPT screen. Does the line pressure return to normal, and are you able to pass...
Probing Times Spring 2016 |
7822DT Early Responder for Geotechnical and Environmental Sampling
A Geoprobe® 7822DT, owned by Strata Drilling Group in Richmond Hill, Ontario (Canada), was early on scene for a train derailment on March 7, 2015, north of Gogama in northern Ontario...
Probing Times Spring 2015 |
New Paint Always Draws a Crowd
New paint. So it was no surprise that the arrival of a new Geoprobe® 3230DT Combo Rig at the American...
Probing Times Spring 2015 |
3230DT: Combination Drill Rig from Geoprobe®
EnviroTek Environmental & Construction Services in Tampa, FL, wanted to attract more mining clients. Their new...
Probing Times Spring 2015 |
6712DT Low-Clearance Cylinder Addition “Valuable Modification” for Enviro-Dynamics
Rob Mores, Owner of Enviro-Dynamics in Hebron, IN, ushered in 2014 with the delivery of a new 6712DT to replace his trusted 6610DT...
Probing Times Spring 2015 |
“We’ve sure been busy.”
We’re sure busy here at Discovery Drilling, in spite of the logistically challenging projects we have scattered around Alaska. We realized...
Probing Times Spring 2015 |
Bridge Over Rubbled Water
Minnesota Department of Transportation determines 1,150-ft. long, 220-ft. high structure will be used for highway...
Probing Times Spring 2015 |
Former Dry Cleaners Site Impacts CA Water Front Park
The City of Monterey, CA, has envisioned providing public access to the City’s waterfront by acquiring open space since the creation of the City’s Master Plan in 1939...
Probing Times Spring 2015 |
Switch to Sonic? No Way!
The Geoprobe® sonic rig has really done some incredible things” Robert said. “Everywhere we’ve gone it’s really impressed everyone...
Probing Times Fall 2016 |
Geoprobe® Sonic Weighted Wireline - A Real Game Changer for the Sonic Industry
Moving things forward. That’s what the sonic weighted wireline tooling from Geoprobe Systems® does. Call it raising the bar...
Probing Times Fall 2016 |
Stearns Drilling On Site of Possible Vehicle Research Center
Stearns Drilling mobilized their Geoprobe® 8140LS rotary sonic to the former Willow Run Powertrain Plant in Ypsilanti Township in Michigan, the site...
Probing Times Fall 2016 |
Sonic Double Wall 4.5 in. (SDW45) Sampling System
The Sonic Double Wall 4.5-in. (SDW45) tooling system compliments the conventional sonic 4x6 system. It’s a simple and effective tooling system...
Probing Times Fall 2016 |
8140LC Sonic: Unmatched Versatility
“As far as rig performance goes, I have to say it did very well,” Randy Crandell, Driller for Major Drilling in Salt Lake City, UT, said recently...
Probing Times Fall 2016 |
Indexing Rack for 10-Foot Sonic Tooling
With a few basic movements and one ‘touch’ of the drill stem, sonic tooling can be loaded into the rig’s rod loader, and the machine’s functions take over...
Probing Times Fall 2016 |
High-Speed Coring Head for Geoprobe® Sonics
While Geoprobe® sonic machines effectively core rock, sonic does tend to induce fractures in the sample. So if the job calls for accurate...
Probing Times Fall 2016 |
3230DT Helps Expand Services for Active Environmental Technologies
Our goal at Active Environmental Technologies, Inc. was to expand the drilling division to provide a much broader range of services to...
Probing Times Fall 2016 |
Spring Assisted Swivel Pull Cap
This is one of my favorite accessory tools. It’s simple and effective. This is a true impact-making, gotta-see-it-to-believe-it...
Probing Times Fall 2016 |
Air Rotary Drilling with a 7822DT
Never underestimate the capability of the 7822DT! Every day, customers become aware of applications they can offer their clients based on the power...
Probing Times Fall 2016 |
Customers Find Success with Geoprobe® 3.75 in. Tooling
Geoprobe® 3.75 in. tooling was designed in conjunction with the Geoprobe® 2.0-in. Slim Prepacks to create a more efficient...
Probing Times Fall 2016 |
7822DT Uses Air Rotary for Geothermal Loop Installation
During the last 23 years, Tony Poulter, Vice President and Co-Owner of RAZEK in Louisburg, KS, has operated a Geoprobe® machine...
Probing Times Fall 2016 |
Brothers Find Employees and Geoprobe® Valuable to Grow Business
In 2005, Andrew and Tony Armstrong set forward to challenge themselves by starting their own company, Direct Environmental Drilling...
Probing Times Fall 2016 |
GeoTek Hawaii Helps Introduce Ground Freezing Technology to Paradise
GeoTek Hawaii was recently retained by Drayko Construction in Honolulu, HI, to complete an innovative project for the City and County...
Probing Times Fall 2016 |
Limited Head Space for 7822DT
Hynes & Associates, in Salisbury, MD, recently completed another difficult drilling project using a Geoprobe® 7822DT...
Probing Times Fall 2016 |
GeoTest Services in San Antonio Knows How to Dial In...Limited Access Machines
GeoTest Services in San Antonio, TX, completed five limited access interior borings to +/- 20 feet at the University of Houston Cougars...
Probing Times Fall 2016 |
54TR Mounting Options
Are you looking for a limited access, specialty direct push machine? Our 54TR combines the proven 54 Series probe assembly...
Probing Times Fall 2016 |
MIP Logging Used to Investigate Site Contaminated by Mixture of VOCs
Dekonta company, a central/eastern European environmental company in Prague, completed both research and commercial activities...
Probing Times Fall 2016 |
Using HPT Logs for Identifying Brine Impact on Fresh Water Aquifers
Last summer Wes McCall and Geoprobe® summer intern Mateus Evald conducted field tests with the Hydraulic Profiling Tool–Groundwater...
Probing Times Fall 2016 |
Geoprobe® DI Team Posts HPT Logging Services Specification
Hydraulic Profiling Tool (HPT) Logging is getting a lot of use these days. HPT logs are a good tool for evaluating site stratigraphy...
Probing Times Fall 2016 |
Riverbed Characterization on Aa River in Belgium
Students and a Professor from the Free University of Brussel (Vrije Universiteit Brussel) used a Geoprobe® Pneumatic Slug Test Kit to perform slug tests inside the Aa...
Probing Times Fall 2016 |
Machine Refurbish Makes Good Cents
The timing is right for 7822DTs, 8040DTs, and even some sonic rigs to come in for a refurb or repairs, especially if you continue to run one of the older...
Probing Times Fall 2016 |
What’s an easy way to keep your Geoprobe® machine running at peak performance?
We get calls every week, “the engine cranks but will not start or will not run well.” The number one cause is improper fuel system maintenance...
Probing Times Fall 2016 |
The Bikes on Broadway
Ever present on the North Campus of Geoprobe Systems® (located on Broadway Blvd) but seldom seen by the public, these men and their ‘machines’ ride...
Probing Times Fall 2016 |
ADT Increases Production With 7822DTs
Aquifer Drilling & Testing, Inc. (ADT) is currently operating between 8-12 crews gathering information to help design bioswales...
Probing Times Fall 2015 |
How Did It Go? Amazing!
‘It’s amazing how a project can start off so small and turn into something much larger so quickly!’
Probing Times Fall 2015 |
Versatile Power. Simple to Run.
The 3230DT may be the most versatile machine Geoprobe Systems® has ever designed and manufactured. Find out more about the machine features.
Probing Times Fall 2015 |
The 4-Twenty Project
New Geoprobe® SDT60 Weighted Wire Line System Obtains High-Quality Soil Samples in Less Time
Probing Times Fall 2015 |
Living the American Dream
As a young man out of high school, Rob McAllister wasn’t sure what he wanted to do with his life. That’s something a lot of people can relate to.
Probing Times Fall 2015 |
A Real Game Changer: 2.0 in. Slim Prepacks and 3.75 in. Rods
With an inside diameter of 3.0 in., the 3.75 in. Probe Rods have an optimal casing combining ease of use for 2.0-in. Slim Prepack monitoring well installation,
Probing Times Fall 2015 |
Dual Winch System Saves Time and Money
One of our most versatile machines just got an efficiency boost! A true dual winch option is now available for the 7822DT...
Probing Times Fall 2015 |
Customer Success: Living the American Dream
They made the decision over dinner one evening. “I think we should start our own business,” Dusty Schroeder said to his wife, Kim, with their three small children at the table...
Probing Times Fall 2014 |
Customer Success: Geotechnical Investigation for New Bridge Pier Foundations
The Mannik & Smith Group Inc.’s (MSG) drilling division provided geotechnical investigation and engineering services for roadway, embankment, bridge abutment, and pier design...
Probing Times Fall 2014 |
Grouting Made Easy with the Direct Image® 2.25 in. Grout Sub
The new Direct Image® (DI) 2.25 in. Grout Sub (222346) will attach to any 2.25 in. DI tool string, and allow you to easily grout your borehole from bottom up...
Probing Times Fall 2014 |
Customer Success: “Oh, The Places You’ll Go!”
Mike Hynes, Master Water Well Driller at John D. Hynes & Associates in Salisbury, MD, reports their 7822DT continues to do things and go places with continued success...
Probing Times Fall 2014 |
Customer Success: 7822DT: “Right” Sized Package, Power and Capabilities
Geo Logic, Inc., Clarksville, IN, was retained by Professional Service Industries (PSI) to install a 2.0-in. PVC monitoring well near a former underground storage tank (UST) site at the..
Probing Times Fall 2014 |
Satisfy Sample Hungry Clients with NEW Patented 3-inch Interlocking Split Spoon
Frozen. Everything. Everywhere. A common challenge in Alaska where the geology is interesting - to say the least - with glacial till and large cobbles. But the tough terra firma...
E-Newsletter |
Cut Fuel Consumption In Half With New Features On The 7822DT V3
Turning augers with the throttle full tilt and then idling down when fine tuning tool strings may be automatically programmed into some driller’s minds...
E-Newsletter |
Increase Sampling Efficiency with NEW DT22 Detent Drive Head
Loose soils. Medium dense soils. No matter the soil type, the NEW DT22 Detent Drive Head has solved the challenge of damaged or stranded liners...
E-Newsletter |
Augerhead Adds Rock Coring Capability to 78 Series Machines
At the 2012 Geoprobe® Open House, the Geoprobe® Engineering Team demonstrated rock coring capabilities using the 7822DT – version 2 – equipped with a new GA4100...
Web Article |
Geoprobe Systems® Rolls Out Array of NEW Products at 2014 Open House
Geoprobe® Open House 2014 event organizers didn’t hold anything back! There were two full days of new Geoprobe® products and technology on display, the introduction...
Web Article |
Direct Image® Operational Tips Email
Find out more about recent DI software updates and tips for the field...
Web Article |
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Gregg Drilling Uses MIP To Develop Strategic ISCO Treatment
Gregg Drilling & Testing, based in California, recently partnered with a Northern California environmental consultant to provide Membrane Interface Probe (MIP) and...
Web Article |
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Open House 2012 Wrap-Up
It was overcast but dry and spirits were high as our 2012 Open House got underway Thursday morning. Close to 150 people travelled from half a dozen...
Web Article |
Geoprobe®: The Right Tools for Investigation of Uranium in Drinking Water
A few years back, the Nebraska Department of Health and Human Services began testing all of the water supply wells across Nebraska to be sure...
Web Article |
Direct Image® 2012 Workshop Wrap-Up
The response to our first ever Direct Image® Workshop surprised even us! Preparation for the workshop was a lot of work and at times tension was high but when the day finally arrived...
Web Article |
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MC7 Soil Sampling System
The MC7 is a continuous soil sampler that compliments the industry standard MC5 system with very similar means of operation.
Web Article |
Supporting Exploration Around the World
Our customers describe our equipment as “Versatile, Innovative, Easy-to-use, and Supported like no other drilling equipment” they own...
Web Article |