Environmental Sampling to Geothermal Installation Power

For 25 years, Associated Environmental Services Ltd has relied on Geoprobe^® rigs to drive their success. Their first rig was a Geoprobe^® 54UD and their latest — the powerful DM450 — continues that legacy.

“We have four 7822DTs, two 6011DTs, and a 420M. I’ve had at least 15 Geoprobe^® rigs since I’ve been in business,” John Schretzmayer, president, said. “Our 6011DTs handle environmental sampling in tight, low-ceiling spaces around the city, while our 7822DTs focus on geotechnical work. It’s been a great relationship for more than 25 years.”

Expanding into Geothermal Installations

When the company decided to dive deeper into the growing geothermal installation market, the DM450 was the natural next step.

“I’ve been interested in geothermal for more than 25 years, and it’s now at a point where there are more projects,” Schretzmayer said. “We had another manufacturer’s rig and were having issues with it on a project, so we decided to get a bigger rig.”

Recommendations from a trusted industry friend combined with Geoprobe’s proven reliability and customer support made the choice easy.

“I’ve always had success with Geoprobe^® equipment and their customer service has always been great,” Schretzmayer said. “Other manufacturers make a good rig, but they offer no support on how to operate or troubleshoot the rig.”

Performance That Delivers

The DM450’s first test came on a demanding geothermal installation project on Long Island — 150 boreholes, each 300 feet deep in tough drilling conditions.

“The rig with its speed, power and ease of use has allowed me to get back on track schedule-wise,” Schretzmayer said. "It’s a lot quicker and much more durable than the other manufacturer’s rig. Plus, it’s not difficult to learn. The control layout and ease of operation allowed me to learn and run the rig within three days.”

The team later deployed the DM450 on another geothermal project on the water, where it excelled in sandy soil.

Features That Stand Out

• Backloading Carousel: “It’s easy and safe.”
• Simple Hydraulic Levers: “You don’t need buttons and screens. The more simple it is the better.”
• Auxiliary Hydraulics: “You can plug into the hydraulics on the rig.”

Confidence to Go Bigger

With the DM450 in their fleet, Associated Environmental is positioned to take on larger, more complex geothermal installation jobs efficiently and confidently.

“The DM450 provides confidence to go after large geothermal jobs,” Schretzmayer said. “It’s easy to train someone, easy to use, safe to operate, and it’s exceeding our expectations. Overall it’s a solid rig with a lot of support. You can call Geoprobe^® and get the answers you need.”