Plan • Prevent • Protect

Sewer line video inspection is a non-invasive, highly effective solution for diagnosing underground utility issues without disrupting operations or damaging property. GPRS utilizes advanced high-resolution camera technology to perform real-time visual assessments of sewer infrastructure, identifying problems such as leaks, blockages, corrosion, root intrusion, and misaligned piping. This precision-driven approach eliminates the need for costly excavation and manual inspections, accelerating project timelines and reducing repair expenses. By delivering accurate, actionable data, GPRS empowers facility managers, contractors, and engineers to make informed decisions and implement targeted solutions with confidence.

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Sewer camera inspections are a critical diagnostic tool for identifying underlying issues in sewer systems that may not be visible through standard methods. These inspections help detect chronic clogs, aging or deteriorated piping, tree root intrusions, foreign object blockages, leaks, and misaligned or poorly installed sewer lines. Common indicators that warrant a video pipe inspection include recurring backups in toilets or drains, slow drainage in sinks and showers, unexplained soggy patches or puddles in grass, and foul odors emanating from drains or outdoor areas. By providing precise visual data, sewer camera inspections enable faster, more accurate repairs and reduce costly guesswork.

A sewer inspection camera is a tool used to assess the condition of underground sewer lines without excavation. It consists of a high-resolution camera mounted on a flexible, durable cable that is fed through the pipeline. As the camera travels through the sewer system, it transmits real-time video footage to a monitor, allowing technicians to visually identify blockages, structural damage, root intrusion, and other issues.

Many systems are equipped with sonde transmitters or locating technology, enabling precise surface marking of problem areas. This facilitates targeted repairs, reduces unnecessary digging, and significantly improves efficiency and cost-effectiveness in both residential and commercial plumbing operations.

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A cross bore is an unintended intersection of a utility line with a sewer or drain line, often caused by trenchless directional drilling. According to the Cross Bore Safety Association, there are more than one million undiscovered cross bores intersecting other sewer utility lines throughout the U.S. They present serious safety risk, and are often found through video inspection. That’s why GPRS strongly recommends pre and post-cross bore inspections whenever trenchless technology is being deployed.

NASSCO stands for the National Association of Sewer Service Companies, the leading authority setting standards for the assessment, maintenance, and repair of sewer systems. There are three key NASSCO certifications and GPRS’ VPI Project Managers are certified in all three:

• PACP (Pipeline Assessment Certification Program): Standardizes how pipeline defects are identified and graded using CCTV inspections.
• MACP (Manhole Assessment Certification Program): Focuses on evaluating manhole conditions.
• LACP (Lateral Assessment Certification Program): Covers inspection of lateral sewer lines.

GPRS’ NASSCO-certified VPI reports ensure consistent defect grading, terminology, and documentation to support regulatory compliance and informed decision-making.

We can help find Illicit sewer access points by inspecting for unauthorized connections, structural anomalies, or flow irregularities. This is most often accomplished via smoke testing or dye tracing in concert with a video inspection, to pinpoint illicit tie-ins with visual confirmation and geospatial data.

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GPRS uses robotic crawler cameras, lateral launch systems, and push cameras to capture high-resolution video and spatial data. These tools are supported by WinCan reporting software and the NASSCO-certified reports are delivered via SiteMap® (patent pending).

GPRS does not clear blockages or offer hydro jetting services. We do, however, identify blockages and defects using advanced inspection tools. Our role is to locate and document obstructions so that appropriate remediation can be planned.

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Our elite VPI Project Managers have the capabilities to inspect pipes from 2” in diameter and up.

GPRS is proud to offer WinCan reporting to our Video Pipe Inspection clients. Maintaining sewers starts with understanding sewer condition, and WinCan allows GPRS Project Managers to collect detailed, NASSCO-compliant inspection data. GPRS Project Managers not only inspect the interior condition of sewer pipes, laterals, and manholes – they can also provide a map of their location. The GPRS Mapping & Modeling Department can provide detailed GPS overlays and CAD files. Our detailed WinCan/NASSCO reports contain screenshots of the interior condition of the pipe segments that we inspect, as well as a video file for further evaluation, documentation, and/or reference.

Yes! Our SIM- and NASSCO-certified Project Managers use VPI technology equipped with sondes, which are instrument probes that allow them to ascertain the location of underground utilities from an inaccessible location. This allows them to use electromagnetic (EM) locating to map sewer systems at the same time they’re evaluating them for defects.

Yes, we offer lateral launch capabilities as part of our standard Video Pipe Inspection services.

Video Pipe Inspection or VPI is a sewer inspection service using CCTV video cameras to mitigate or prevent infrastructure damage by inspecting underground water, sewer lines, and lateral pipelines. GPRS's NASSCO certified technicians can locate clogs, investigate cross bores, find structural faults and damages, and conduct lateral sewer line inspections.