Utility Tracing

Utility Tracing Services

Accurate Identification of Underground Services for Safer Site Investigation

Utility tracing is a critical part of any site investigation, providing accurate information on the location of underground services before intrusive works are carried out. Chelmer offer a comprehensive utility tracing service designed to reduce risk, improve safety and support effective project planning.

Identifying buried services at an early stage helps prevent accidental damage during site works, which can lead to costly repairs, delays and potential safety hazards. By establishing the position of utilities prior to excavation or drilling, Chelmer enable projects to proceed with greater confidence and efficiency.

Importance of Utility Identification

Understanding the location of underground services is essential for both health and safety and project planning. Unknown or incorrectly mapped services present a significant risk during intrusive investigation works such as trial pits and boreholes. Utility tracing reduces this risk by providing clear and accurate information on service locations.

In addition to improving safety, identifying utilities can also help avoid unnecessary disruption and associated costs. Damage to live services can result in downtime, emergency repairs and potential impact on surrounding infrastructure, all of which can be minimised through effective tracing and verification.

Survey Methods and Technology

Chelmer utilise a combination of modern surveying equipment and established techniques to identify underground services. Initial investigations often begin with the review of statutory service records, which provide a starting point for understanding known utility layouts. However, these records can sometimes be outdated or inaccurate, making on-site verification essential.

Non-intrusive surveys are then carried out using specialist equipment, including Cable Avoidance Tools (CAT) and signal generators (Genny), as well as Ground Penetrating Radar (GPR). These tools allow operatives to detect and map the position of buried services with a high degree of accuracy.

During the survey, additional site features such as manholes, valves, service markers and other indicators are identified and recorded. These details can be combined with topographical survey data to produce a clear and reliable representation of utility locations across the site.

Verification Through Opening Up Works

Where required, the presence and exact position of utilities can be confirmed through controlled excavation or opening up works. This allows visual inspection of services, ensuring that their location, depth and condition are fully understood before further works are undertaken.

This combination of non-intrusive surveying and targeted verification provides a robust approach to utility tracing, ensuring that all relevant information is captured and confirmed.

Integration with Site Investigation Works

Utility tracing is often carried out in advance of, or alongside, other site investigation activities. By identifying service locations early, Chelmer are able to plan boreholes, trial pits and other intrusive works safely and efficiently, avoiding conflicts with existing infrastructure.

This integrated approach ensures that all aspects of the investigation are coordinated, reducing the likelihood of delays and improving overall project delivery. It also allows multiple services to be undertaken during a single site visit, improving efficiency and minimising disruption.

Accurate Data for Planning and Development

The information obtained from utility tracing surveys plays an important role in the planning and design of development projects. Accurate service data allows engineers and designers to make informed decisions regarding layout, foundation design and drainage systems, ensuring that new works can be carried out without interference from existing utilities.

By providing clear and reliable information, Chelmer support safer working practices and more efficient project planning. Utility tracing remains an essential component of modern site investigation, helping to ensure that projects are delivered on time and without unnecessary risk.

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Mission Statement

At Chelmer we aim “to ensure the longevity of our company through repeat and referral business achieved by customer satisfaction in all areas including timeliness, attention to detail and service-minded attitudes.”