Citywide Water Model and Report

City of Glenpool, OK

The City of Glenpool (City) selected Cowan Group Engineering (CGE) for citywide water model and improvement recommendations. The scope of work included developing and maintaining a hydraulic water model for Glenpool’s distribution system, including two booster pump stations that are presently off-line, one water standpipe with a capacity of approximately one million gallons, just over 400,000 linear feet (approximately 77 miles) of a distribution piping network, and 4,000 meters to serve its residential, commercial and industrial customers.

One of the biggest challenges facing community leaders was how to effectively continue taking treated water from the Tulsa Metropolitan Utility Authority (TMUA) while increasing and improving the overall water supply system’s capability to provide more water to meet an increasing demand, as well as improve its ability to provide greater fire suppression needs within the service area. In the past, TMUA provided water to Glenpool at a pressure not capable of filling the community’s standpipe, and it significantly reduced the available stored water to offset peak demand and provide sufficient fire flows.

In order to address the above concerns, the CGE team recommended that the water supply system effectively be separated into a dual pressure plane system. The system could be easily isolated into a high pressure plane and low pressure system with the installation of as few as two (2) check valves.  

In addition, the CGE team recommended that a new elevated water storage facility of 0.5 million gallons as a minimum and located approximately one-quarter (1/4) mile east of U.S. 75 and one-half (1/2) be constructed. Furthermore, a new 16-inch diameter connection underneath U.S. 75 approximately one-half (1/2) mile south of SH 67 and a second 16-inch diameter connection underneath SH 67 approximately one-quarter (1/4) mile west of U.S. 75 was installed, and a 12-inch diameter waterline between the two connections. The recommendations effectively increased water pressure to the southern portion of the water distribution system while increasing fire suppression capabilities.

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