Underground Private Utility Locating & Mapping


The Benefits of Choosing a Private Utility Locator?

GPRS’ private utility locating services are meant to give your excavation team a detailed picture of what utility lines lie beneath the surface of your job site. To ensure the overall timely success of the job, utility detection is critical to any construction project where subsurface excavation is planned. If ignored, budget overruns multiply, your schedule turns chaotic and there’s risk of injuries taking place on your job site. The standard is one-call utility locating, a state-sponsored public service that is required for every project. However, the scope of this service is limited to areas that only serve the public’s interest. To achieve the complete success you're looking for, you’ll want to connect with an expert private service provider like GPRS. We offer you a comprehensive range of reporting options, from marks on the ground, to a basic field sketch, to a full-blown AutoCAD report that pinpoints buried electrical, water, gas, communication, sewer and storm drain lines. Additionally, our report provides you with a permanent utility’s location record for future reference.


Remember: Private utility locating is the responsibility of the property owner or construction company on site.

Private utility locating is always the responsibility of the property owner. Which is why GPRS consistently provides high quality customer service as well as accurate utility locating results. With GPRS’ ability to locate telecommunications cables, private water service, sprinkler systems, propane tank lines, security lighting wires, ancillary electrical conduits, and more, all you need is us for all your utility locating needs.


Private subsurface utilities represent over 65% of all buried utility lines. State call services (811) are giving you only half the picture.

As stated, calling 811 should always be your first step when ensuring a safe job site for your employees and clientele. However, there are additional steps you should take to guarantee a protected job site; these steps, as formulated by GPRS, aided us in our journey in achieving a 99.8% subsurface damage prevention rate. In addition, GPRS created a guided eBook titled, “6 Steps to a Safe Job Site,” which details the additional steps in establishing a safe environment before excavation begins!


Call 811 (One Call System) and ensure a positive response


Ask key personnel at the facility for knowledge on underground whereabouts


Walk the job site and excavation area to search for visual indications of underground utilities


Review existing as-built utility drawings for the site and specific excavation area


Hire a qualified private utility locator

  • Ensure that the private utility locator uses multiple locating technologies such as GPR and Electromagnetic Locators.
  • Ensure that the private utility locator provides a map or drawing of their findings
  • Walk the job site with the private utility locator to review the results of the underground utility locate

Expose all located lines via pot-holing (vacuum excavation)


Hold a pre-excavation meeting with all involved parties to review the map provided by the private utility locator, and cross reference with any existing maps, 811 results, and the results of the vacuum excavation

Why a private utility locating service?

Subsurface utility lines represent one of the most common risks to excavation crews and the biggest unnecessary expense for construction jobs. You are required by law to locate, mark, and avoid any subsurface utilities present on your job site before beginning any excavation project. Normally, this process begins by calling your local 811 state utility locator. But as we know, they are only required to locate public utility lines, providing you with an incomplete representation of your project site, while putting your job and your team at risk.

811 Locating services only covers underground public utilities and does not cover or focus on private utilities. Example: for residential customers, private utilities may include gas lines for a heated pool, electric lines for a shed, garage, or barn, and your homes’ sewer pipes. For commercial customers, private utilities may include parking lot lighting, fire mains, and building-to-building utilities.

To place things in perspective, in the U.S. there is a utility strike every 60 seconds, totaling 532,000-line strikes, costing roughly 30 billion dollars in 2019 alone. More importantly, since 2000, there have been more than 2,000 injuries and 400 deaths in relation to insufficient ground disturbance policies at construction and other job sites. This goes to show that the responsibility of damaged or severed line strikes, during the course of your excavation, fall on your shoulders and your opportunity to hire a private utility locator.

How Do Utility Locating Services Work?

GPRS uses a multitude of state-of-the-art tools to provide the most accurate utility detection services in the industry. We utilize ground penetrating radar, electromagnetic induction, thermal scanning, and CCTV sewer camera systems to help provide a clear and accurate picture of the location and condition of utility lines beneath your job site. The goal of GPRS's utility locating services is to identify the type and location of buried utility lines in order to prevent unnecessary damage, or injury to field personnel, during excavation.

The Accuracy of GPRS Private Utility Locating

To ensure the accurate and complete locating of buried private utility lines, customers need to contact a private utility locating contractor such as GPRS. Our industry-leading radar technology will provide the most comprehensive data of existing sub-surface utilities on your job site. With the accurate utility locating that GPRS provides, you can avoid damage to existing services.

However, our top-of-the-line technology isn’t what led to our result guaranteed 99.8% subsurface damage prevention rate. Subsurface Investigation Methodology, or SIM, is the industry-leading, metrics-based guideline for the underground locating and concrete scanning industries. SIM includes 3 main elements: equipment, training, and methodology. All GPRS Project Managers are SIM-qualified, enduring over two-weeks of classroom training and eight-weeks of field mentoring. Our field personnel aren’t just technicians; this is their career, their craft, and their trade.

Furthermore, GPRS utility locating services provides you and your team with a detailed 3-dimensional map of all underground utilities and their location. This data can be used to help plan the excavation process, preventing delays, fines and other costs due to utility line damage or disruption. There are a number of problems that can occur when a person begins to excavate, and these can include gas line explosions, fires or electrocution from power lines, and water lines bursts. Not only can these be costly, but they are also dangerous for property owners and workers. Having a private utility locate is important, but having one whose employees are highly trained, and produce industry-leading, accurate results? That’s even better.

When is the best time to contact a utility locating service?

If you need underground locating services or water pipe locating services, call GPRS first. For many construction projects, knowing the location of subsurface utility lines or water pipes is crucial in order to assist with the placements of structures, supports, foundations, and digging tools required for the excavation process.

A residential utility locating contractor, such as GPRS, can help project planners from the pre-planning stages to the later building stages. Additionally, utility detection services help keep both workers and homeowners safe, and keep your project on time and on budget. GPRS can locate underground gas lines, pipelines, communications lines, electric lines, water, lines, sewer lines, and voids.

Oftentimes we can have a utility locator on your property in a matter of hours. If you need underground utility locating services for your property or construction site, don’t wait, contact GPRS today!