John Take

The primary goals of the Permanent Canal Closures and Pumps (PCCP) project are 1) to ensure public safety by constructing storm surge risk reduction barriers to prevent a 100 year storm surge in Lake Pontchartrain from entering the three outfall canals, 17th Street, Orleans Avenue, and London Avenue canals and 2) to allow the Sewerage and Water Board of New Orleans (SWBNO) to evacuate rainwater from the city.

I completed a comprehensive hydraulic and fluid transient analysis study to assess flow balancing through each individual UV reactor, and examine and mitigate the potential upstream and downstream impacts of the 48" diameter butterfly control valve operations. Our fluid transient analysis coordinated operations of the new Tesla Water Treatment Facility to protect the existing Hetch Hetchy Water System pipeline and tunnel infrastructure that dates back to the 1930s.

Capilano Lake reservoir is the source for chlorinated, unfiltered water to Metro Vancouver. Periodically, turbidity in the lake is too high to provide potable water, so it was necessary to construct new treatment facilities to ensure a reliable and safe supply to this community of over 2,000,000 people. The original plan was to build two new facilities. Instead, our team proposed pumping lake water to the new Seymour Capilano Filtration Plant, eliminating the significant costs and impacts of a… Show more

Capilano Lake reservoir is the source for chlorinated, unfiltered water to Metro Vancouver. Periodically, turbidity in the lake is too high to provide potable water, so it was necessary to construct new treatment facilities to ensure a reliable and safe supply to this community of over 2,000,000 people. The original plan was to build two new facilities. Instead, our team proposed pumping lake water to the new Seymour Capilano Filtration Plant, eliminating the significant costs and impacts of a second treatment facility.

The 1,080 MLD pump station transfers unfiltered lake water through a 7 kilometer long, 3.6 meter diameter tunnel to the plant. Potable water is then returned by gravity via a second similar tunnel and passes through an energy recovery facility before reconnecting to the existing distribution system. The station is made up of eight, 2,000 HP pump and motor sets and 0.5 kilometers of complex, large bore internal piping up to 2.3 meters in diameter. Show less