CASE STUDIES


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ANDERSON AND FISH CREEK PCCP AND BAR-WRAPPED FORCE MAIN ASSESSMENT

The City of Calgary is currently planning to reverse the flow direction of two critical wastewater force mains in the city. A critical part of the study is to collect structural condition information on the pipelines and then use that information to assess the structural capacity.

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PETER LOUGHEED PROVINCIAL PARK - ALBERTA, CANADA

Several other technologies failed to identify the location of the leaks that were known to exist within a small distribution main feeding a collection of small homes and cabins in the Kananaskis region of Alberta. This polyethylene line of 6-inch diameter pipe also had limited drawings and features available for insertion and extraction.

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CASE STUDY: BALTIMORE COUNTY DEPARTMENT OF PUBLIC WORKS

As part of Baltimore County, Maryland’s Wastewater Force Main Asessment Program, Pure Technologies inspected the 54-inch Patapsco PCCP Force Main using the SmartBall® and PipeDiver® pipeline assessment tools.

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HETCH HETCHY WATER AND POWER PROJECT (SFPUC)

San Francisco Public Utilities Commission (SFPUC) operates three parallel cement mortar-lined steel pipelines 47.5 miles long, otherwise known as the San Joaquin Pipelines, which range in size from 56- to 78-inches in diameter. In 2008, the SFPUC contracted Pure Technologies to perform the in-line "smart pigging" inspection of the lines utilizing advanced MFL technology.

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MAYNILAD WATER SERVICES - MANILA, PHILIPPINES

Maynilad is the water and wastewater services provider for 17 cities and municipalities that comprise the West Zone of the greater Metro Manila area. The work included the use of Sahara® leak detection, in addition to video inspection on a major pipeline system.

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METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA (MWD)

MWD Pipeline system was constructed over several decades; its system is comprised of pipe from several different manufacturers, in various classes, with varying diameters. In response, and in keeping with its reputation as one of the world’s most proactive utilities, MWD established an Infrastructure Reliability Program with a mandate to maintain the integrity of this complex system.

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TARRANT REGIONAL WATER DISTRICT (TRWD)

The Tarrant Regional Water District (TRWD) is a raw water supplier that serves ten counties in north central Texas. Most of the 1.5 million people served by the District are in Tarrant County, which includes Fort Worth and surrounding communities. In 2001 the District delivered over 366,000 cubic feet of water to its customers.

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PETROBRAS - NATAL, BRAZIL

Pure Technologies (Pure) has conducted two inspections of a 12-inch mutli-phase product pipeline in eastern Brazil, owned by Petrobras. Pure utilized its 10” Polyurethane coated SmartBall leak detection tool to detect a total of three simulated leaks during two separate runs on this pipeline.

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CITY OF ROCKVILLE - ROBOTIC PIPELINE INSPECTION

Pure Technologies (Pure) was contracted to provide a robotic inspection of a critical 24-inch prestressed concrete cylinder pipe (PCCP) transmission line for the for the City of Rockville’s Department of Public Works (DPW). The City’s single 10 mile-long transmission main system traverses from the Potomac River to the Rockville city limits before branching off into the distribution network.

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DALLAS WATER UTILITIES - ELECTROMAGNETIC INSPECTION

Since 2005, DWU has been interested in a condition assessment of the 72" Stuart Simpson line, a nearly 50 year old large-diameter PCCP main, but has faced a lot of challenges.

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