EM Wand Utility Locating Services Illustration


Private Property • Public Property • Utility Mapping
Rapid Response - Nationwide Service
With over 300 Project Managers, strategically stationed in every major market and city across the United States, GPRS has an unmatched nationwide service network that makes it quick and easy to find an expert Project Manager in any potential customer’s area. GPRS ensures they can reach your location within 24 to 48 hours of contact to solve all and any of your utility locating needs. Contact GPRS for information, pricing, and scheduling needs.

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utility locating
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Private Utility Locating

The one-call system (811) is responsible for marking all publicly owned utilities but will not typically mark depths and will not mark any privately owned utilities. There will be at least some private utilities on almost any construction project or could even include all of the utilities on the entire site. Therefore, to receive a comprehensive locate, a private utility locating firm must be utilized to ensure that all buried utilities are located.  The private locating process protects all site employees from potential line strike damages.
utility mapping
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Facility Utility Locating & Mapping

Accurate, up to date as-built drawings and facility maps are a key to success for any construction project. The planning phase of a project relies heavily on the accuracy of the information obtained in the existing facility maps, which details the site’s underground infrastructure. With our facility mapping and modeling services, the GPRS Deliverables Department can update existing or create new as-built drawings that portray actual site conditions – including any variations, renovations, or unknown pipes.
soil boring
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Soil Boring & Directional Drilling Clearance

Locating underground utilities is crucial when performing services requiring directional drilling, Phase I or II investigations, environmental drilling and sampling, locating underground storage tanks, soil borings, installing monitoring wells, or site remediation. With our nationwide network of Project Managers, GPRS can mobilize to your site quickly and locate critical utilities or USTs that could conflict with your drilling or excavation area.
one call service
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One Call utility Locating Services

GPRS continuously exceeds industry performance when it comes to the precision and accuracy of our utility locating services. We are equipped to partner with utility providers to manage one-call contracts or to  complement 811 locates by confirming utility locations using multiple technologies or providing depths and additional information. Whether supporting locating tickets for assets such as public utilities, pipelines, and facilities or campuses on private property – GPRS is the clear choice for damage prevention.

What Utilities Can GPRS Locate?

Water Lines

Not only can GPRS locate your underground water pipeline system, but our video pipe inspection team have the capability of several services including leak detection, and water system mapping. Learn about our leak detection services.

gas lines

GPRS has extensive experience when it comes to locating underground utilities along pipelines, gathering pipelines, and transmission lines containing natural gas, petroleum, or oil. Terminals, LNG terminals, and compressor stations are also locations where a comprehensive subsurface utility locate is needed.

sanitary sewer

Sanitary sewer pipes are in every city and town, spanning long distances with the potential of numerous utility crossings. During the installation or inspection of these sewer pipes, all underground utilities must be located to avoid any pipes from becoming damaged. Learn about our video pipe inspection services.

storm sewer

Like water and sewer pipes, storm sewers are a utility that more often than not, you’ll come across on a job site. Our utility locating and video pipe inspection services, with the aid of our robotic crawlers and lateral launch cameras, can investigate your storm system to ensure no pipes are damaged and the system is functioning properly. Learn about our video pipe inspection services.

electric lines

Neglecting to locate electric lines can result in injury or worse for the employee responsible for drilling/excavating at your construction site.

communication lines

The connection between a cell tower and the network backbone often crosses the path of many underground utilities, creating an overlap between telecommunications lines and other subsurface infrastructure. With the addition of internet services, 5G towers, and other advanced communication tactics, these lines are often not shown on original as-built drawings, making it that much more important to locate before excavation.

irrigation lines

Like all underground utilities, your irrigation system is in place to maintain your facility for your employees and clients. That becomes hard when you have a leak in the system or a damaged irrigation line. With the combination of our GPR equipment and acoustic leak detectors, GPRS can locate the line.

unknown or abandoned pipes

The problem with abandoned or unknown underground pipes is they are likely not on your current as-built drawings. This creates an issue because if you attempt excavation without the knowledge these pipes exist, you can delay your project or potentially injure one of your technicians. With GPRS’ utility locating services, not only are we going to locate these pipes, but give you a complimentary facility map for your future use.

underground storage tanks

Undetected USTs could prove troublesome for construction sites. Most USTs contain hazardous substances, so hitting or damaging any of these subsurface tanks means gasoline or diesel could potentially spill underground, contaminating your project site.

Utility Damage Stats

2000 Injuries gif400 deaths gifOver 532,000 Line Strikes30 Billion Damages GIFUtility Strike Every 60 Seconds GIF
Root Cause – Insufficient Ground Disturbance Policies, mis-marked utilities or no locate completed. Source: CGA Dirt Report (Injury & Damage stats are since 2000)

U.S. infrastructure stats

In the U.S., there are over 800,000 miles of public sewers and 500,000 miles of private lateral sewers connecting private property to public sewer lines. Each of these conveyance systems is susceptible to structural failure, blockages, and overflows.

Approximately 50% of annual expenditures, in the wastewater sector, go to operation and maintenance.

There is roughly 1 million miles of potable water piping across the country. With many of these pipes having been installed in the early mid-20th century, it is no surprise that an estimated 240,000 and counting water mains break per year.
According to the ASCE, the total infrastructure budget needed to repair and upgrade our wastewater system is estimated at $150 billion.

Sanitary sewer overflows are due to blockages, line breaks, sewer defects that allow water to overload the system, lapses in sewer system operation and maintenance, power failures, inadequate sewer design, and vandalism. EPA estimates that there are at least 23,000 to 75,000 sanitary sewer overflows per year.

Source – ASCE Infrastructure Report Card

Why Project Managers?

GPRS gives its field technicians the title of Project Manager. Why?
Our team members can assist your project from
the scheduling and site walk phase all the way
through the reporting and billing phase. GPRS
Project Managers are true professionals that
deliver industry-leading customer service.
Our team members can assist your project from
the scheduling and site walk phase all the way
through the reporting and billing phase. GPRS
Project Managers are true professionals that
deliver industry-leading customer service.
Clear Communication
Our Team Members ask the right questions
prior to arriving on site. While on site they will
do a pre-job walk and also a post-job walk.​
A career, not a job
Our field personnel are not just technicians.
This is their career, their craft and their trade.
The result? A better quality service.

Equipment used

Utility Locating Project Managers

What Can I Expect When I Hire GPRS?

Clear Communication
GPRS team members will perform a pre and post job walkthrough, outlining all the details about the service that was performed for our clients. We ask the right questions, so nothing falls through the cracks.
When you hire a company, confidence in their services and how they perform should be at the top of the list for wants. With GPRS, you get Project Managers who are confident in their skills because they’re well trained and well equipped with top-of-the-line technology and equipment.
Complimentary Maps
For every utility locating job, GPRS offers complimentary PDF and .KMZ maps of your project site or facility! GPRS does this because we fight for a world with 100% subsurface damage prevention, and by obtaining new, up-to-date as-built drawings, our clients sleep better at night knowing the locations and make-up of their underground infrastructure. View deliverables examples.
GPRS Deliverables Department
Our Deliverables Department is not only here to help create our complimentary maps but deliver clear and understandable findings with each of our outputs. In addition to our PDF and .KMZ map files, outputs include field sketches, CAD drawings that provide 2D site plans, and even 3D CAD models. Additionally, upon the completion of every project, customers receive a job summary that includes job scope information, site photos, description of site conditions, equipment used, and notes from the project. View deliverables examples.
SiteMap Data Storage & Map Viewer
– On top of complimentary facility maps, GPRS delivers an additional service, offering you the opportunity to store all your site data in a protected, cloud-based storage system, while also offering a one-of-a-kind map viewer so you can view, edit, download, print, or share your up-to-date facility maps.

Utility Locating Explained


Monthly Rental
$14,000 - $35,000


1. what is ground penetrating radar (GPR)?
Ground penetrating radar is a detection method which uses radio waves to identify buried or hidden components within a structure or beneath a surface. This non-destructive method uses antennas of varying strengths to transmit a signal into a surface. As the signal encounters different components within that surface, it is bounced back to a receiver at the surface. This action creates a reading which can be reviewed by experienced GPRS Project Managers in order to determine the location of utilities and other buried items.
2. how is gpr used?
Ground penetrating radar is used to identify the location of objects beneath the surface. GPRS uses this radar for utility locating and concrete scanning applications. Varying antenna strengths are used for different applications, depending on the type of material being scanned and how far down we can expect to find buried materials.
3. does gpr have any limitations
GPR is extremely effective at locating subsurface utilities and other materials, however it does have certain limitations. Ground conditions, weather, and type of material being located are just a few of the potential limiting factors. GPRS Project Managers are skilled in determining if GPR is the right choice for you project. In the event that conditions are not suitable for GPR scanning, an alternative recommendation can be made.
4. what type of gpr equipment is used?
GPRS uses a variety of ground penetrating radar and scanning tools according to a project’s needs. Our two most commonly used pieces of equipment are the concrete scanning antenna and the utility locating antenna. Read more about the different types of equipment we use here.
5. how can i determine if gpr is needed for my project?
Contact GPRS by phone or through our website and a local GPRS representative will be in touch with you as soon as possible. Our representatives and local Project Managers are skilled in assessing local conditions and can help you to figure out how GPR services can meet your needs.

The difference between Subsurface Utility Engineering (SUE) and Private Utility Locating.
Utility Locating Markings Map