Cone Penetration Testing (CPT)

Pitcher Services now offers Cone Penetration Testing (CPT) with the support of our sister company, Gregg Drilling. Pitcher now operates one of Gregg’s custom designed 30-ton CPT trucks for projects in the Bay Area. Our CPT equipment includes a standard truck as well as portable “ramset” equipment.


  • Cone Penetration Testing
  • Seismic CPT
  • Soil and groundwater sampling
  • High resolution site characterization with MiHPT and UVOST (through Gregg Drilling)
  • Piezometer installation

Pitcher operates a 30-ton custom designed Cone Penetration Testing truck similar to those operated by our sister company, Gregg Drilling.

We are supported by Gregg’s data quality assurance and control team lead by Dr. Peter Robertson and Kelly Cabal, experts in the area of Cone Penetration Testing and data interpretation.

Fully enclosed heated/air conditioned work station

30-ton push capacity

Real time data presentation

Support truck paired with CPT rig equipped with drill head to provide asphalt/concrete coring.

Portable options for difficult or limited access


Our in-house data quality and control team is also responsible for generating some of the most widely used and referenced materials on Cone Penetration Testing. Check-out these CPT Guides for more information:

For People, For Planet

Pitcher Services is the company many engineers in California have known and come to trust. If you are new, we welcome the opportunity to build a long-term partnership based on our client-focused solutions.

We are proud of our partnership with the Operating Engineers Union #3 and #12 and as part of Sealaska, are an Alaska Native owned company.

As part of Sealaska’s Woocheen group of companies, our over arching goal is that of ocean health. We are dedicated to the philosophy of “For People, For Planet”