EM and GPR locating across Baltimore City and Baltimore, Anne Arundel and Howard counties.
Trinity Subsurface locates private underground utilities for contractors, engineers and facility owners in Baltimore City and Baltimore, Anne Arundel and Howard counties. We find the electric, water, gas, storm, sewer and communication lines that Miss Utility does not mark, using electromagnetic (EM) equipment and ground penetrating radar (GPR). We mark them in paint and flags and deliver a field sketch within 24 hours.
Maryland law requires a call to Miss Utility (811) before digging. But member utilities only mark their own lines, typically up to the meter or property line. On hospital and university campuses, industrial sites and commercial properties around Baltimore, the lines past that point are often undocumented: site lighting, private water and fire services, storm laterals, and feeds between buildings. They're private, so only a private locator will mark them.
Our team relies on a variety of technologies and methods to fully examine your site. We use electromagnetic scanning, ground penetrating radar and more to get the best info on subsurface utilities and underground infrastructure.
Our team offers multiple services to support your projects on top of utility locating and concrete scanning. Ask us about additional utility investigation services we can offer for further support beyond GPR locating and scanning.
We aim to provide ongoing support for your current and upcoming projects. Whether you're just starting design or running into unexpected utilities during construction, we'll investigate and assist with any step of your project.
No. Member utilities mark their own facilities. Private lines on hospital campuses, universities, industrial sites and commercial properties need a private locator.
Most requests are on site within three business days, often sooner. Call (443) 779-6060 and our scheduling team will tell you what's possible.
Baltimore City and Baltimore, Anne Arundel and Howard counties, plus Annapolis, the Eastern Shore and Ocean City. We also cover Washington, DC.
