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Home My WebLink AboutWater System Analysis r ALLSIZE STORAGE Water System Analysis and Report Prepared by McClure Engineering, Inc. March 30, 2004 s, OF 7 i t t « 44 : .. ii M. , '� .... � 6592304 i * -`. i 3/30/94/1 WATER SYSTEM REPORT AllSize Storage College Station, Texas The Allsize Storage Facility being proposed near the intersection of Texas Avenue and the Earl Rudder Freeway will use an existing water system that runs through the center of the site. No additional lines are planned with the construction of this project. The only additions to the system will be a water service connection and two fire hydrants. The purpose of this report is to demonstrate that the existing system has sufficient capacity to provide the required flows at this facility. The City of College Station Design Guidelines for water systems require that a system be capable of producing 2500 gpm for fire flows in a commercial development like Allsize Storage. The flow can be split between two adjoining fire hydrants. Water velocities cannot exceed 12 feet/second in the individual pipes under fire flow conditions and residual pressures cannot fall below 20 psi. The City's Utility Department conducted a fire hydrant flow test on an existing hydrant near the proposed site. The results from that test are shown in Exhibit A. For modeling purposes, the assumption was made that the pressure plane of the water system was level in this small area and the system pressures would be very similar at other nearby locations where tests could not be conducted. Exhibit B shows a general schematic of the existing water system at the Allsize Storage facility. Fire hydrants are added at Nodes 1 and 2. A computer model of the system was prepared using the Kentucky Pipe Network Analysis model. The results of that model, shown in Exhibit C, indicate that the lowest pressure under fire flow conditions is in excess of 86 psi and the highest velocity is less than 11 fps. Therefore, the existing system meets the City's requirements and is capable of serving the Allsize Storage facility.