What to expect when calling GPRS Ohio

Hired by clients large and small, GPRS is the leading choice for concrete scanning and utility locating in Ohio. Since many private utilities remain unmarked even after calling your local 811 One Call System, we pick up where they left off by locating any and all underground utilities and any other subsurface impediments prior to excavation, saw cutting, or general construction. Founded in Ohio, we have specialized in detection of private underground utilities and the scanning of concrete structures for 18 years. GPRS uses a consultative approach;, our project managers are trained to ask questions onsite and provide our clients with the answers they need. We focus in on our client’s subsurface issues and ensure we provide valuable problem-solving solutions to keep jobs safe and on time.

GPRS can locate private and public underground utilities around The Great Lakes Region including water, electric, gas, communication, storm, and sanitary sewer. We also locate subsurface material in concrete such as conduit, rebar, and various reinforcement in the concrete slab, as well as detecting concrete slab thickness. GPRS offers pipe inspection via our CCTV division, and locating underground structures such as foundations, grave sites, and underground storage tanks (USTs) with industry leading equipment.

Our clients can receive various deliverables from our scanning services. We offer Google Earth overlays, CAD documents, EMI (electromagnetic induction) reports, as well as written reports showing GPR data and jobsite photographs. Depending on a customer’s needs, we will provide the necessary deliverables. Please note that we do not provide land surveying, engineering, geophysical, or geological services.



GPRS believes that our people are the key difference in producing our success. We invest significant energy into training, coaching, and developing our Team Members. This investment into each Team Member can be quantified by our reputation of excellence and the company of clients that we keep - working for an estimated 65% of the ENR top contractors listing.

At GPRS, safety is not just a goal, it’s an expectation set from the beginning. We are committed to creating and fostering a safe work environment for our project managers, and teaching them how to extend that safety onto all of our project sites, community and clients. We even built our own training center where every project manager is required to complete OSHA safety training in addition to over two months of job site-specific training before they can perform any services on your site. GPRS team members practice Subsurface Investigation Methodology (SIM)- a comprehensive standard operating procedure specifically designed to facilitate safe utility locating and concrete scanning processes.

Subsurface Investigation Methodology (SIM) is a standard operating procedure comprised of two specifications created specifically for subsurface investigations- one for underground utility locating and one for concrete scanning. SIM does not involve the practice of geophysics, geology, land surveying or engineering.

The comprehensive SIM specifications focus on a three-step approach aimed at achieving the most accurate results when performing non-destructive subsurface testing. The three critical factors that make up the specification are:

Ground Penetrating Radar Systems Specialist Performing Concrete Scanning


SIM focuses on the use of two main forms of technology when conducting subsurface investigations: the standard pipe locator, and ground penetrating radar (GPR). The use of both technologies in conjunction can confirm depth and location of a subsurface element, either in utility locating or concrete scanning applications.


Proven methodologies.

SIM combines proper training in subsurface investigation techniques and methods with advanced equipment knowledge to create a regulated system for collecting data. Technicians following SIM are required to account for and overcome technological weaknesses. Following this proven protocol is recommended in order to achieve the best possible results for each site.


Experienced technicians.

Current recommendations by the American Society of Nondestructive Testing advise an 8-hour minimum training combined with 60 hours of practice using GPR equipment in order to achieve a Level 1 certification. SIM specifications advise 8 weeks of field mentoring, split by 80 hours of classroom training.


The Great Lakes Region of GPRS serving Michigan, Ohio, Pennsylvania, Kentucky, and West Virginia is structured with dedicated contacts so that a phone call, email, or quote request is never missed. We pride ourselves on maintaining superior customer satisfaction. The region has a team that works tirelessly to schedule, price, and make sure your needs are met in a timely fashion. Each team member is trained and capable of answering any questions you may have prior to starting work. Call the numbers below to coordinate your next project!