Christopher Koch

Christopher Koch is the owner and President of ZoneOne Locating. With over 20 years’ experience in damage prevention, he is frequently called to provide expert testimony in legal cases. As a member of Nulca’s executive board including terms as Secretary, Vice-President, and President, he helped shape the professional competency standard for locators. He is a regular contributor to Damage Prevention Professional and co-author of the book, Locating Buried Utilities – A Professional Approach. Koch holds a BES from St. Cloud State University and a graduate certificate in Human Resource Management.
Phone: (763) 682-0206

Christopher has articles in the following magazines:
2010 Q2 Issue
2010 Q3 Issue
2010 Q4 Issue
2011 Q1 Issue
2011 Q2 Issue
2011 Q3 Issue
2011 Q4 Issue
2012 Q1 Issue
2012 Q2 Issue
2012 Q3 Issue
2012 Q4 Issue
2013 Q1 Issue
2013 Q2 Issue
2013 Q3 Issue
2013 Q4 Issue
2014 Q1 Issue
2014 Q2 Issue
2014 Q3 Issue
2014 Q4 Issue
2015 Q1 Issue
2015 Q2 Issue
2015 Q3 Issue
2015 Q4 Issue
2016 Q1 Issue
2016 Q2 Issue
2016 Q3 Issue
2016 Q4 Issue
2017 Q1 Issue
2017 Q2 Issue
2017 Special Locate Issue
2017 Q3 Issue
2017 Q4 Issue
2017 Q5 Issue
2018 Q1 Issue
2018 Special Locate Issue
2018 Q2 Issue
2018 Q3 Issue
2019 Q1 Issue
2019 Special Locate Issue
2019 Q2 Issue
2019 Q3 Issue
2019 Q4 Issue


A line locator is a fairly simple tool – a coil (or coils) in the receiver produces an electric charge when exposed to a moving magnetic field. That charge is communicated to the user via an audible tone and/or a visible display. The source of that moving magnetic field, known as signal, is usually a …

No UPSIDE Read More »


“And all this science I don’t understand – It’s just my job five days a week…” -Elton John, lyrics to Rocket Man, Honky Chateau, 1972 I’ve been teaching the science of locating for about 20 years now and to be honest, I barely had a handle on it when I started teaching it. I’d proven myself …

ROCKET MEN Read More »

Testing Limits

“You don’t have to look far to find evidence of people’s willingness to test their limits, often with disastrous consequences. A quick search on YouTube can lead you down a rabbit hole of calamity. There are fail videos of people diving off rooftops, skate-boarding down stairs, mountain biking into ravines, doing handstands on superbikes, and …

Testing Limits Read More »