Pan Deck Scan Prior To Core Drilling

GPRS was contacted by a local plumber to scan the second level of a middle school. This was during the school’s spring break so we had to act fast in order for them to complete their project on time. The purpose of these scans were to find a safe place for them to core for a new drain line.

Little did we know the slab we were scanning on was pan deck! We were able to confirm this analysis by walking down to the first floor and looking up through the drop ceiling panels. After we determined this, the client asked for us to mark out the highs and lows of the decking in order to find a safe place to core.

After scanning the project was able to be completed on time in a safe manner! Don’t hesitate to call GPRS for any of your subsurface locating needs. You never know what lies below…

Scan before you plan! This ensures worker safety and saves valuable time by targeting specific areas of concern. GPRS can also provide GPS reports overlaid on Google Earth or overlay information on pre-existing CAD files for future building plans. This is all done in a safe, time efficient, non-destructive manner.

GPRS assists by giving a real-time depth view of subsurface hazards such as reinforcing, utilities, conduit, underground storage tanks, etc. This reduces the likelihood of near-surface obstruction strikes during core drilling, saw cutting, trenching, soil boring, directional drilling, anchoring, and other near-surface applications.

Ground Penetrating Radar Systems uses the GSSI (Geophysical Survey Systems, Inc.) Sir-4000 technology in locating. GPRS also uses the RD-8100 Locator to locate live power and radio frequency (RF) signals underground. We can also detect utilities in or under concrete via induction or conduction with an exposed or known surface utility line.

"Time is a primary currency traded on any given construction project. At Ground Penetrating Radar Systems, our everyday efficiency in operations allows us to respond to the immediate needs of our customers, often within 24 hours or less." (

For questions or quotes on any subsurface locating in the Greater Chicagoland Area with fast response times and easy scheduling, please contact Zack Walter at (224) 563-4445 or