While holding the on-call contract with California’s Department of Water Resources (DWR), Gregg was called-up to drill and install a number of multi-level completion wells near Cuyama, CA over a...

Working with EOS Remediation, Gregg Remediation completed a 5-day project requiring injection of approx. 17,300 total gallons into 18 direct push locations. We targeted 5ft treatment zones from...

Sodium Permanganate and Activated Persulfate Over a 5-day period, Gregg Remediation injected a mixture of Sodium Permanganate (10 g/l), Sodium Persulfate (20 g/l) and Sodium Hydroxide (20.6 g/l)...

ISCO Injections with Potassium Permaganate Over a 39-day period, Gregg Remediation injected approx. 318,500 total gallons of a 1.5% potassium permaganate solution into 57 direct push locations and 2...

Gregg Drilling, working for the National Parks Service and Kleinfelder, was asked to complete a number of geotechnical borings on Santa Cruz Island. The work provided a unique challenge as the...

In the summer of 2002, Sealaska, helped invest in clean energy with their work on the Ocean Wind 1 project in New Jersey. Gregg Drilling, an integral part of Sealaska’s Woocheen hydro sciences...

In 2021, Gregg Drilling was contracted through Kleinfelder to perform a geotechnical site investigation at the San Diego Airport for structural improvements to gates 46 & 47. The work...

Gregg Drilling, working under an on-call contract with the Department of Water Resources was called up to provide Cone Penetration Testing (CPT) and Seismic CPT for the California Aqueduct near Los...

Scope of work: Gregg Drilling worked with AECOM and Kleinfelder on the Delta Conveyance project to modernize the aging infrastructure in theDelta and protect the reliability of water deliveries...