Blog of Bong Seog Jung

This project is to conduct a hydraulic transient (modelling) analysis for the detailed design of Heritage Road 600 mm watermain in the Region of Peel Ontario Canada. The objectives of the transient analysis are to evaluate the hydraulic transient-based risks for the sub-transmission main; to provide the maximum, minimum, and recommended design pressures for the sub-transmission main; and to confirm the requirements for combination air valves (CAVs) along the sub-transmission main. System pressures in the water systems are predominately controlled by water levels at the storage elements, system demand, and the amount of pumping at the key pumping stations. While there are numerous scenarios that can be derived from these and other system variables, 14 base analysis scenarios without surge protection and 4 additional scenarios with surge with surge protection are considered for the proposed 600 mm diameter Heritage Road sub-transmission main. The base analysis scenarios comprehensively...

This project is to conduct a hydraulic transient analysis for the proposed 750 mm diameter Zone 5 (Z5) watermain on Goreway Drive between Castlemore Road and Countryside Drive. The proposed 750 mm watermain will serve as a sub-transmission main and will be constructed of concrete pressure pipe (CPP) across a distance of approximately 3 km from Castlemore Road to Countryside Drive. The project also comprises the design of 300 mm and 200 mm diameter Zone 5 local distribution watermains on Goreway Drive with the lengths of approximately 710 m and 670 m, respectively. However, this transient analysis is limited to the proposed 750 mm sub-transmission main from Castlemore Road to Countryside Drive, and the objectives of the analysis is to: 1.         Evaluate the hydraulic transient-based risks for the sub-transmission main; 2.         Provide the maximum, minimum, and recommended design pressures f...

This project is to conduct a hydraulic transient (modelling) analysis of the 2400 mm diameter Hanlan (HN2400) feedermain for current and near-term operating conditions. The HN2400 is a part of the Zone 2 East transmission system, which also comprises Arthur P. Kennedy (APK) WTP HLPS, Silverthorn LLPS, Hanlan Reservoir, and a series of additional transmission mains (feedermains) including: 2100 mm diameter Hanlan (HN2100), 1800 mm diameter Hanlan (HN1800), 1500 mm diameter Hanlan (HN1500), and 1200 mm diameter Hanlan (HN1200) feedermains. The overall locations of the Zone 2 water system including the feedermains are presented via a hydraulic model layout in Figure 1 . HN2400 is constructed using concrete pressure pipe (CPP) and it provides transmission capacity to the higher-pressure zones in Peel, as well as to the Region of York. The feedermain starts at APK WTP HLPS and conveys potable water across a distance of almost 15 km up to Hanlan Reservoir. The feedermain route comprises La...

This project is to assist with the detailed design of the watermain replacement/relocation on Hurontario Street, located in the City of Mississauga, Region of Peel (Region). The water utility relocation component of the overall LRT project comprises the design and replacement of approximately 5.8 km of watermain spanning three pressure zones from north of Lakeshore Road to just north of Elm Drive. The overall location of the proposed watermain replacement is presented via a hydraulic model layout in Figure 1, as well as a street map in Figure 2. The proposed watermains will include connections to the existing distribution system. The 600 mm diameter watermain sections will be constructed using concrete pressure pipe (CPP) whereas the 300 mm diameter watermain sections will be constructed using polyvinyl chloride (PVC) pipe. The purpose of the analysis is to: 1.   Evaluate the hydraulic transient-based risks for the watermains; 2.  Provide the maximum, minimum, and recommende...

  The Region's water transmission system is a large and complex network consisting of low-lift and high-lift pumping at the water treatment plants and pumping stations and floating storage at reservoirs and elevated tanks. The lake-based system is divided into seven pressure zones, with pumping to upper zones separated by West, Central and East zone areas. East-West hydraulic connectivity and transfer/transmission capacity is maintained in several of the zones. Water is presently pumped throughout the system via two (2) water treatment plants (WTPs) and eleven thirteen (131) pumping stations (PSs), excluding those at the WTPs.   Storage facilities include two (2) clear wells at the treatment facilities, four (4) elevated tanks (ETs) and eleven twelve (121) reservoirs. One additional ET and two additional reservoirs are planned for the future. The system comprises approximately 200 kilometres of transmission mains ranging in diameter from 600 mm to 2400 mm. Transmission and sub...

This project is to conduct a hydraulic transient (surge) analysis for the proposed Stewart Road Booster Pumping Station (BPS) located on Stewart Road at Sixth Street, Collingwood, Ontario. The Town is undertaking the design and construction of upgrades for Stewart Road Reservoir and BPS, as well as a new 400 mm diameter watermain along Sixth Street from Georgian Meadows Drive to Tenth Line and along Tenth Line from Sixth Street to Mountain Road. The proposed BPS is required to allow further development in the central area of pressure zone 2 (Zone 2), and the proposed facility will initially service existing and Phase I water demands as per the Master Plan. The facility is also being designed such that it can be expanded in the future to service the Phase II water demands as per the Master Plan. The primary objective of this analysis is to complete a formal transient (surge) analysis in support of the design of Stewart Road BPS and to consider its impact on Zone 2. To this end, the tran...

This project is to conduct a system (resistance) curve analysis and a hydraulic transient (surge) analysis for the proposed upgrades at Anne Street Booster Pumping Station (BPS) located at 164 Anne Street North, Barrie, Ontario. The Anne Street Reservoir and BPS was originally constructed in 1959 and is located within Zone 1 of the City’s water distribution system. The existing BPS pumps water into Zone 2 North (2N) by three vertical turbine pumps. The station also formerly housed Zone 3N pumps, which were removed during a 1984 modification. The 2013 Water Storage and Distribution Master Plan by AMEC (Master Plan) and subsequent 2019 Master Plan update by WSP have identified the need for a second Zone 3 North (3N) pumping station at the Anne Street Reservoir site to provide supply redundancy, fire flow demand, and system reinforcement. A complete rebuild of the existing Zone 2N pumping station was also recommended as it is reaching the end of its serviceable life. The first primary...