Spring Branch Water Rehabilitation
S&B Infrastructure, Ltd. (S&BI) was contracted to demolish and replace four pump and motor assemblies and install and commission new 12,000-gpm assemblies. The new motors featured variable frequency drives to respond to the flow requirements. High- and medium-voltage motor control equipment, switchgear and a new 1,500kva, 12.5kv, 2400-volt, pad-mounted transformer and service were installed to compliment the new equipment.
A chlorine system including three chlorinators, six one-ton cylinders, gas detection, high-volume ventilation system are housed in a new 1,000-sf masonry building.
In response to the city's conversion to surface water, an aqueous ammonia feed system was added to the design. This system consisted of a 3,000-gallon storage tank, inside a concrete containment area; a 100-gallon tank; three metering pumps; and gas detection equipment housed in a 400-sf masonry building. Maintaining plant production during construction was a key issue.
Seamless expansion was important in every component of the project from building aesthetics to process piping to electrical power and controls. Since the facility is unmanned, a comprehensive instrumentation system was required to allow the plant to be operated from a remote control room