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Eichelbergers Successfully Ventures into Water Well Market with 7822DT

Eichelbergers, Inc., in Mechanicsburg, PA, was approached by a municipal client who needed to do some exploratory water supply well drilling in a remote, environmentally sensitive area in northern Pennsylvania. No rubber tired vehicle access was permitted at this wooded location. After considering a variety of options to install these wells, the decision was made to use one of the company’s Geoprobe® 7822DT machines.

Eichelberger drillers add a drill rod during percussion drilling.

Connor Neely, Driller (left), and Chris Chronister, Eichelberger Field Superintendent, add a drill rod during the 5-in. air percussion drilling.

The crew tracked the 7822DT through the steep, mountainous terrain following a crude path and weaving between trees so as not to cause any damage. Once the machine was maneuvered to the site, the crew assembled 500 feet of 2-in. air line from a high pressure auxiliary air compressor to transport the supply of air to the 7822DT for the air hammer drilling.

All of the tooling, casings and water supply tanks were moved to the well location with a track skid steer.

The crew began the job by augering a 12-in. hole through the overburden to a depth of 35 feet to accommodate the installation of the 10-in. steel surface casing.

“I thought that installing the 10-in, string of casing would be the most challenging part of the project,” said Ted Gayman, Executive Vice President of Eichelbergers, Inc., “but the Geoprobe® machine performed flawlessly to complete this portion of the job.”

Following the installation of 35 feet of 10-in. casing, a nominal 9-in. diameter hole was drilled to a depth of 60 feet using a percussion air hammer. The crew then installed 60 feet of 5-in. steel casing with a drive shoe. After seating the casing into the bedrock, a nominal 5-in. open rock hole was advanced to a final depth of 182 feet using a percussion air hammer.

“The crew did an outstanding job as we ventured into the water well market with the 7822DT machine,” Ted added.

  • Connor Neely, Driller (left), and Chris Chronister, Eichelberger Field Superintendent, add a drill rod during the 5-in. air percussion drilling.
  • Installing 10-in. steel casing with the 7822DT.
  • Chris Chronister, Field Superintendent for Eichelbergers, uses a 7822DT and a tool string with 8-in. air hammer and stabilizer to install a water well in a remote, protected area.

Probing Times Spring 2017

This article is an excerpt from the Spring 2017 issue of the Probing Times ( Page 20 ). Click Here to see the full issue.

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