Peel Region is now incorporating pipe condition ratings into a Decision Support System. It only required minimal Peel Region operations staff support to locate and provide access to valves and hydrants. Well water after a flood : After a flood, your well/cistern water may be contaminated with bacteria and chemicals that can make you sick. This ensures that limited capital budgets for pipe replacement are utilized as efficiently as possible.”The current decision matrix for the selection of water mains to replace is “desktop based,” meaning that decisions are based on subjective components such as performance, age and hydraulic information.

This process can help to ensure that future capital spending is maximized and help to lower the occurrence of water main failures and emergency repairs.To better serve our many subscribers that are working from home during this time, we are offering digital issues of Water Finance & Management. This process can help to ensure that future capital spending is maximized and help to lower the occurrence of watermain failures and emergency repairs.Alain Lalonde, P.Eng., is with Echologics/Mueller Canada. None of the DI pipe was found to be in Good condition.Pipe replacement in the Peel Region, costs on average $1 million/km. However, no actual measure of pipeline condition is taken into consideration, and so the Peel Region began looking for ways to enhance its decision matrix using evidence-based condition assessment. The water samples are tested for contaminants like Each of Peel's drinking water systems undergoes an annual inspection by the Ministry of the Environment to ensure Peel meets the regulations of the Annual water quality reports are produced each year to inform the public about the results of these tests. Learn about water and the services the Region of Waterloo provides for municipal water and wastewater. Interestingly, the findings showed there was no correlation between pipe age and pipe condition in the pilot area. With this information we were able to send out crews to the exact location for repair, avoiding a costly emergency situation as the leak escalated,” says Gill.Ultimately the cost of acoustic inspection was less than 1.9 percent of current pipe replacement cost. These acoustic waves are measured using sophisticated acoustic sensors connected externally to the pipe appurtenances, then analyzing the acoustic data to determine pipe condition by measuring the velocity of the acoustic wave. Using ePulse meant no excavating and no disruptions to service as it is per- formed during normal system operating conditions. Specifically, the Peel Region uses pipe age, a water main break frequency (=>7 breaks/km), hydraulic limitations, pipe criticality and adjacent utility renewals such as sewer and storm in its current desktop approach. That is why water testing happens not only at the treatment plants but throughout the distribution system. Drinking water from private wells is at risk of contamination. A number of tests were performed on thousands of water samples collected throughout the year, including testing for microbiological parameters, inorganic and organic parameters, operational checks as well as any additional testing carried out in accordance with the regulatory requirement, all of which proved the Region of Peel municipal water being of excellent quality. This does not include the time and cost it takes to conduct the desktop study itself. Some of the pipe sections earmarked for replacement in 2019 were actually in moderate condition and could be deferred, while some of the pipe that had no or very few breaks were actually in poor condition and needed to be replaced ahead of schedule.Pipe replacement in Peel Region costs on average $1 million per km. As a construction inspector for the Region of Peel you look after new development projects, capital re-construction projects for both water and waste water projects, along with that you look after re-construction of the Regional Road system. Those selected included pipes that were already earmarked for replacement in 2019, those with varying break frequency in the area, any with no or little break occurrences, pipes in the size range of 150 – 200 mm, and a mixture of cast iron and ductile iron pipes. The Region’s water system is comprised of 4,500 km of water mains ranging in size from 100 to 2,500 mm. Testing is all done externally using existing access points (valves and hydrants) so no tools are ever inserted into the pipe or in the water column.Once analyzed through proprietary algorithms, results are easy to interpret and support proper decision making for prioritizing water main renewal programs. Ontario’s Regional Municipality of Peel is the third largest water utility in Canada, servicing a population of approximately 1.38 million people in the cities of Mississauga, Brampton and Caledon.

Interestingly, the findings showed there was no correlation between pipe age and pipe condition in the Peel Region pilot area. Its water system is comprised of 4,500 km of water mains, ranging in size from 100 – 2,500 mm. It cost $20,000/km to conduct the acoustic testing bringing the total pipe replacement cost to $120,000/km saving the municipality $80,000/km.Once analyzed through proprietary algorithms, results are easy to interpret and support proper decision making for prioritizing water main renewal programs.“With 15-20 km of pipe on the annual replacement program, these savings add up real fast,” says Shah.An additional benefit of acoustic leak detection is the simultaneous detection of existing leaks.“We found three confirmed leaks, including two full circumferential ring breaks that we did not know about. The 16 km of testing was segregated into condition ratings for 133 segments of pipe, 125m in average length.“Because of the nature of the ePulse technology we were able to get this work done in the winter, which is typically a down time for road work, so it’s a good time to allocate resources,” says Gill.Testing was completed within 3 weeks, averaging 1 km per day of field testing. Back on April 1, 2017, the Region of Peel introduced a new back flow bylaw. There are four well-based municipal drinking water systems in Caledon with their distribution systems collectively having five reservoirs and two standpipes.

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