Integral Surveying Crew Members

John Ehrhart, PLS

John has been surveying since 1986, since 1992 in Colorado. He is the father of four and balances his free time between his family, volunteering with the Prison Dharma Network as a meditation instructor, and working as a Resorative Justice Facilitator.

Jeff Nading, PLS

Jeff has been surveying since 1995 and is an avid cyclist. One of his most recent cycling accomplishments was braving the Triple By-pass (120-mile ride over three mountain passes) in the pouring rain.

Shelby Allen, Cad Manager - Survey Tech

Shelby has been using Autocad in the Surveying field for almost 20 years. His experience in Electronic Drafting streamlines our field and drawing procedures, greatly reducing the time it takes a project to go from cradle to grave.