Commitment to Safety • Reliable Results
Responsive Resources • Established Expertise
Penhall Technologies provides utility locating, employing both electromagnetic induction (EMI) and ground penetrating radar (GPR) for privately owned property. We can identify and locate subsurface hazards and obstructions existing in the ground. Reduce the risk and help ensure the safety of your next project by contacting Penhall Technologies for your private utility locating needs.
Charlotte Utility Locating Projects that Penhall Worked On
Utility locating for new facility
A grading company in Charlotte, NC hired Penhall Technologies to scan a facility for utilities. The client wanted to scan prior to site work for a new addition to the facility. They needed to install a new sewer drainage system into the ground without striking utility lines. Our analyst scanned three large areas around the building, which ultimately totaled to nearly two acres of land. He used the GSSI SIR 4000 with a 400 MHz antenna to scan the areas. Following the scan, he performed sweeps with our Electromagnetic Detection device, which picks any live power or communication lines. By performing the utility locate, the customer was able to safely install the new drainage system without any incident.
Penhall locates utilities prior to digging
Recently, a local fence company hired Penhall Technologies to scan the lawn surrounding a loading dock for underground utilities. The company wanted to know the location of the utilities prior to digging holes for fence posts. The company needed to drive fence poles into the ground and they wanted to avoid striking utility lines. The analyst scanned three areas around the loading dock. This ultimately totaled to nearly one acre of land. Penhall Technologies was able to exceed the expectations of the client. The analyst not only located the utilities, but he marked them out on the surface in real time using spray paint. Our Charlotte, NC location has the capability and the man power to meet your needs in a timely manner. This ensures that your projects get finished safely and on time.
Locate utilities to avoid hitting lines before excavation
Recently, a local grading company hired Penhall Technologies to locate underground utilities in an area of a lawn in front of an industrial facility. The grading company wanted to know where the utilities were to avoid striking them during excavation to extend the parking lot. Penhall Technologies scanned the area around the existing parking lot, which ultimately totaled to nearly two acres of land. The analysts used the Sir 4000 with a 400 MHz antenna to scan the area. He then scanned the area with a electromagnetic detection device (RD 7100). This picks up any live power or communication lines. Our analyst was able to exceed the expectations of the client.
Penhall locates power and gas lines for a homeowner in Tyron, NC
Recently, a residential home owner hired Penhall Technologies to locate several power lines and a propane gas line surrounding an old garage and home that will soon be demolished and rebuilt. The locating was in preparation for the excavation of the grounds surrounding the garage and home. The analyst scanned three areas around the home and garage which ultimately totaled to nearly a half-acre of land. He utilized the RD 7100DL to accurately locate all lines in question around the home.
Use GPR to locate a series of underground tunnels for a large energy company
Penhall was recently hired to perform work for a large energy provider before the demolition of one of their power plants. This job was different than most in that the focus was not entirely on utility locating or concrete scanning. The goal of this project was to locate a series of tunnels that ran underneath the basement of the facility. During the building’s demolition, Penhall Company would need access to these tunnels to core drill from above. The image below illustrates the boundary of one tunnel within the pink lines, as well as a live conduit that runs perpendicular. Whatever your GPR needs may be, Penhall has the technology and trained analysts to meet your needs.
Radio detection (RD) technology used to identify utilities below concrete slab
A fire and water restoration company hired Penhall Technologies to scan the floor of a retail store in Shelby, NC. Our analyst used RD technology to scan the floors to locate and mark any electrical conduits before the customer began cutting the slab. The utility locator guaranteed fast, reliable, and accurate service.
Ground penetrating radar used to locate private utilities on residential property
A general contractor for residential properties called Penhall requesting we perform a utility survey at a private residence. We used ground penetrating radar to locate and mark all utilities in a backyard that was about 100′ x 45′ feet to prepare the contractor to proceed with his work safely and on time.
Find and mark underground utilities on private property before trenching
A recovery foundation recently hired Penhall Technologies. The job consisted to scan a courtyard for private underground utilities. The customer wanted to locate sewer, water and drainage pipes for the installation of a new playground for children living at the facility. Penhall Technologies scanned a 2,300 square foot area using the SIR-4000 with a 400MHz antenna and a radio detection device (RD 7100) to pick up any live power or communication lines. Penhall Technologies was able to locate unkwon utilities in the area, which prevented damage during installation.
Locate multiple grounding wires surrounding a cellular tower before installation of new sewer lines
Penhall Technologies was hired to locate multiple grounding wires surrounding a cellular tower before a new sewer line was installed in Shelby. We located the grounding wires by using the radio detection unit (RD7100) and inducing a signal on all wires to locate the grounding loop as well as the radial wires. Originally, the client thought that only 2 radial wires existed in the path of the sewer line. Penhall Technologies located 4 radial wires in the path and that the grounding loop was too close to the existing sewer line.
Determine where utilities lie within concrete slab using GPR and Radio Detection
Penhall Technologies was hired to perform GPR concrete scanning in a medical office building before a trench could be cut to locate utilities in and under the concrete. The contractor wanted to avoid hitting the main power to office buildings. We scanned 250 feet of trench using the GSSI HR Mini and denied the presence of conduit in the concrete. We then used a radio detection unit (RD7100) to locate live power under the concrete slab. Penhall Technologies was able to successfully locate the main power in the building.
Utility Locating in preparation for excavation and pouring of new foundations to support scales and shipping trucks
Recently, an electric motor manufacturing company hired Penhall Technologies to scan the lawn surrounding their facility for underground utilities in preparation for excavating the areas to pour foundations to support the installation of scales and shipping trucks. The analyst scanned two areas around the manufacturing facility which ultimately totaled to nearly two acres of land. He used the Sir 4000 with a 400 MHz antenna to scan the areas. The analyst followed up by performing sweeps with our radio detection device (RD 7100). This equipment picks up any live power or communication lines. Penhall Technologies located the utilities, and marked them out on the surface in real time using flagging. The client completed the project in a safe and non-destructive manner.