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Clean and Inspection

Clean and Inspection

Comprehensive inspection, cleaning and assessment services

cross bore inspection and utility asset locating
advanced pipe assessment technologies
Comprehensive inspection, cleaning and assessment services

Advanced inspection technologies, cleaning and assessment services ensure subsurface infrastructure integrity

A thorough underground pipe inspection conducted using advanced technology provides utility owners with backup data that confirms no threat was uncovered in the inspected area before new or replacement utility lines are horizontally drilled in proximity to existing wastewater infrastructure. These technologies maximize pipe inspection and location accuracy, increasing operational safety and efficiency while reducing the exposure crews and property owners must endure during more intrusive programs.

By applying our comprehensive cross bore inspection and utility asset locating expertise in horizontal directional drilling applications, utility crews of all types can avoid drilling into existing sewer lines. We also conduct risk assessments and recommend where inspections should be performed in areas subjected to underground drilling. In addition to working with utility owners on new projects, our experts perform legacy inspections.

Prior to performing inspection and rehabilitation operations on wastewater pipe, it must be free of debris, blockages and inner wall deposits. And, without a thorough and accurate assessment that provides quality data of a pipe’s condition, undertaking a major pipe infrastructure project can be inefficient and hazardous.

Accordingly, National Underground Group provides pipe infrastructure stakeholders services that thoroughly clean pipelines to fully restore flow capacity or as a prelude to rehabilitation operations. And, our advanced pipe assessment technologies provide a thorough inspection of pipe conditions as an aid to planning current and future infrastructure projects.

Cross Bore Inspection Services

We inspect existing lines and laterals using advanced robotic lateral launch systems that can quickly identify the main, each connection and the service lateral’s position up to the foundation of a structure.

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Cleaning & Assessment Services

We offer advanced pipe cleaning solutions for pipes of any diameter, using hydro jet equipment or mechanical methods to meet the specific requirements of our clients.

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Solutions Specific to Your Needs

Application-specific technologies that inspect, clean and assess pipe

Our experienced professionals use advanced robotic lateral launch systems that inspect from the sewer manhole through the lateral, assessing pipe of all sizes. We utilize cloud technologies linking inspection data to GIS-based mapping systems that provide inspection details managed by our quality control team, creating a vetted, date-stamped library. After inspection, data can be viewed and analyzed by clients in a customized, easy-to-use online portal.

The pipe and high-performance sewer cleaning services we provide are conducted by experienced cleaning crews who assess the cleaning job and determine the best process and equipment for the job. We offer advanced pipe cleaning solutions for pipes of any diameter, using hydro jet equipment or mechanical methods to meet the specific requirements of our clients. After scouring and sanitizing storm or sewer pipes, we apply a powerful vacuum to remove debris.

operator locating and designating utilities

Whom We Serve

Utilities

To ensure the continued integrity of existing subsurface gas lines and the safe and efficient installation of new infrastructure, National Underground Group provides comprehensive pipeline inspection and locating services. Our complete inspection, quality control and data record management process provides the data to effectively maintain assets and help prevent cross bores, which can present safety and damage risks. Inspection and locating is particularly important when trenchless technologies are used in areas with subsurface pipelines that convey gas and other hazardous materials.

Contractors

Contractors who work on subsurface wastewater infrastructure installation or repair projects find the most reliable support from a subsurface pipe specialist with a range of capabilities. National Underground Group provides all the services for an infrastructure project and tailors solutions to the specific requirements of our contractor clients. We know the safest, most efficient and cost-effective methods for performing subsurface pipe inspections, maintenance, installation and repair and use the most advanced technologies to ensure jobs are completed on time and on budget.

Municipalities and Government Agencies

When it comes to projects for municipalities and government agencies, on-time delivery is key. National Underground Group’s data-driven approach to pipe and infrastructure inspection enables construction stakeholders to better plan their subsurface repair and installation projects. Accurate and available inspection information enables construction crews to work safely and efficiently, adhere to regulatory standards, and guard against damage to existing infrastructure, project delays and budget overruns. We also offer preventive and proactive solutions that help keep subsurface pipes in optimal condition.

Engineering Firms

National Underground Group’s engineering industry pipeline services include a range of accurate and efficient evaluations. We use advanced closed-circuit television (CCTV) technology to produce Pipeline Assessment Certification Program (PACP) exchange databases, and conduct thorough CCTV lateral launch inspections and engineering CCTV mainline inspections to provide accurate, reliable data that facilitates optimal timing and methods for repair and maintenance. From pipe locating and mapping, cleaning and assessment to trenchless rehabilitation and cross bore inspection, we provide solutions engineers need to satisfy their clients.

Horizontal Directional Drilling (HDD) Contractors

To help prevent damage during installation or repair efforts, National Underground Group locates underground utilities, including gas, water, sewer, electric and fiber optic lines for HDD contractors using the latest in subsurface surveying technology. We accurately pinpoint the exact horizontal and vertical coordinates of each structure, making it possible to reroute the installation of new utilities at the project planning stage to help maximize safe operations, reduce project time and costs and minimize or eliminate disturbances and damage to existing subsurface infrastructure.

Utilities

To ensure the continued integrity of existing subsurface gas lines and the safe and efficient installation of new infrastructure, National Underground Group provides comprehensive pipeline inspection and locating services. Our complete inspection, quality control and data record management process provides the data to effectively maintain assets and help prevent cross bores, which can present safety and damage risks. Inspection and locating is particularly important when trenchless technologies are used in areas with subsurface pipelines that convey gas and other hazardous materials.

Contractors

Contractors who work on subsurface wastewater infrastructure installation or repair projects find the most reliable support from a subsurface pipe specialist with a range of capabilities. National Underground Group provides all the services for an infrastructure project and tailors solutions to the specific requirements of our contractor clients. We know the safest, most efficient and cost-effective methods for performing subsurface pipe inspections, maintenance, installation and repair and use the most advanced technologies to ensure jobs are completed on time and on budget.

Municipalities and Government Agencies

When it comes to projects for municipalities and government agencies, on-time delivery is key. National Underground Group’s data-driven approach to pipe and infrastructure inspection enables construction stakeholders to better plan their subsurface repair and installation projects. Accurate and available inspection information enables construction crews to work safely and efficiently, adhere to regulatory standards, and guard against damage to existing infrastructure, project delays and budget overruns. We also offer preventive and proactive solutions that help keep subsurface pipes in optimal condition.

Engineering Firms

National Underground Group’s engineering industry pipeline services include a range of accurate and efficient evaluations. We use advanced closed-circuit television (CCTV) technology to produce Pipeline Assessment Certification Program (PACP) exchange databases, and conduct thorough CCTV lateral launch inspections and engineering CCTV mainline inspections to provide accurate, reliable data that facilitates optimal timing and methods for repair and maintenance. From pipe locating and mapping, cleaning and assessment to trenchless rehabilitation and cross bore inspection, we provide solutions engineers need to satisfy their clients.

Horizontal Directional Drilling (HDD) Contractors

To help prevent damage during installation or repair efforts, National Underground Group locates underground utilities, including gas, water, sewer, electric and fiber optic lines for HDD contractors using the latest in subsurface surveying technology. We accurately pinpoint the exact horizontal and vertical coordinates of each structure, making it possible to reroute the installation of new utilities at the project planning stage to help maximize safe operations, reduce project time and costs and minimize or eliminate disturbances and damage to existing subsurface infrastructure.

Tailored Solutions