on the mark locators


Trusted Utility Locating Service

1080 S Chapel St. Suite 201 Newark, DE 19702

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24/7 Emergency Services


Our team and utility locating experts provide a full suite of state-of-the-art utility locating experience, designed to help your team avoid accidental underground strikes that can result in costly repairs, severe injury and lost time.

Step 1 : Site Walk

Visual Site Inspection

On The Mark Locators perform a visual job site inspection. We look for surface features and inspect the interior of the buildings to ensure that all underground utilities are accounted for in your scope of work.

gpr concrete scanning
rebar scanner

Step 2: Locate & Verify the Known Utilities

EM Scans

We locate the known utilities in your scope of work. This is done by connecting, tracing and marking utilities from surface feature to surface feature ( Gas Valves, Water Pit or Meters, Electrical Transformers and Communication Junction Boxes). This may require us to connect to utilities out of the scope of work and trace back through the scope of work to ensure a safe place to work.

Step 3: Find & Identify Unknown Utilities

EM Passive Scans
To ensure the general success of your project, utility detection is vital to any construction project where a subsurface excavation is planned. If this critical initiative is ignored, the danger for injury increases, budget overruns can multiply and your schedule are often delayed.
video pipe inspection
sewer line inspection

Step 4: Find Anomalies Underground

Ground Penetrating Radar (GPR)

We have the knowledge along with the equipment to find Storm Drains, Fiber Optics Lines and Sanitary Sewer Lines that are passing through your scope of work. Those types of utilities are not usually located with accuracy. On The Mark Locators have the equipment to find these utilities. All we need is access. 

Step 5: Quality

A Secure Job Site

On The Mark Locators walk through your scope of work using Passive Scans and a Unique Metal Detector looking utilities that may not have a surface feature or are just abandoned.

plumbing inspection camera

Our Services


How Do Utility Locating Services Work?

1. Provides Crucial Underground Utility Informartiom

On The Mark Locators will perform a utility locate to help our clients navigate to make a safe jobsite.

2. Forensics And Data

We locate the known utilities in your scope of work as well as those that are not on the blueprints. Plus we can provide our clients with S.U.E Level A data along with documented video for sanitary sewer and storm lines.

3. Reliable Deliverables

We take pride on providing the information needed to make our clients jobsite a success. Every job is unique and requires a different approach to meet expectations.

4. Information Is Knowledge

With the information provided by On The Mark Locators, our clients make crucial time saving decisions. We solve problems that have not been acct.

Safety Assessment Program

On The Mark Locators LLC has received the Gold Safety Award. This award is presented to companies who register a safety score between 85% – 95% in the Safety Assessment Program administered by ConstructSecure.
Safety Assessment Program
sewer video inspection camera

Why use On The Mark locators?

Utility locating is a unique approach to finding underground utilities. No one can see in the ground. On The Mark Locators invest in the latest technology combined with numerous years of training to provide our clients with the most detailed utility scan in their scope of work.

We are the best at what we do because utility locating is a commitment to safety.

Industry Partnership

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