Sahara® - GIS and Mapping Services

The Sahara® system, when coupled with a high-accuracy Global Navigation Satellite System (GNSS), can be utilized to gather GPS data points with sub meter accuracy to identify the location of the water main from ground level.

The Sahara sensor is tracked above ground with a precision locator system known as Sahara Locator. It allows for accurate through-pipe communication, even within metallic mains with a ground cover of up to 33 feet (10 meters). This allows for the precise marking of leaks and other anomalies to within +/- 18 inches (0.5 meters).

By tracking the location of the Sahara sensor as it traverses the pipeline, the locator operator can gather GPS points at strategic locations along the main to help determine the path of the pipeline from ground level. This information can be used by utilities to greatly improve excavation accuracy when excavating the pipeline for repairs and maintenance, especially in complex urban environments.

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Sahara Leak Detection and Video

The Sahara® platform is a tethered tool that can accurately identify leaks and air pockets in water and wastewater pipelines. It is capable of locating very small leaks typically within 1.5 feet (0.5 meters) of their actual location. The tool also features inline video that allows operators to observe internal pipe conditions.

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Sahara Commissioning New Pipelines

The leaks that cause pre-commissioned water mains to fail a hydrostatic pressure test are typically very small, making these a challenge to locate using conventional techniques. The Sahara® leak detection system can pinpoint the location of leaks without having to divide the pipeline into short sections for pressure testing.

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Dallas Water Utilities Sahara Program

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