Water Treatment & Production

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The Utility Department purchases water under a contract with the Lower Colorado River Authority to obtain untreated lake water from Lake LBJ for the City of Granite Shoals system. In addition, we operate a small Ground Water (wells) system for Sherwood Shores 3 located in Hoover Valley.

Plant operations personnel responsible for production of treated water participate in advanced training and state licensing to ensure that the water quality and plant operations remain at their best.

The City’s Water Treatment Plant, completed in May 2007 is capable of producing 3.0 million gallons of water a day. The facility has a state-of-the-art filtration system, new filtration equipment described as "Microza Membrane Technology". The PALL filtration system was developed to provide 99.99% reduction of cryptosporidium and giardia lamblia cysts with a 0.1-micron (0.0000039") membrane filter. Along with new treatment, and new equipment being installed in the near future.

The City's water storage system consists of two tanks on W. Bluebriar with a combined 500,000 gallons and 150,000 Elevated Storage tank. Water is pumped to the City's east side 100,000 gallon Ground Storage located on Kingscircle, then pumped to the City’s second Elevated Storage tank located on Valley View Lane. The system is sampled monthly in accordance with state regulations at various location throughout the city.

Water produced at the Water Treatment Plants is treated with:

A combination of Chlorine and Ammonia which are added as a disinfectant in accordance with state and federal regulations
Acid and caustic for pH adjustments to achieve total organic carbon (TOC) removal prior to disinfection which was designed to lower disinfection by-products to greater levels than mandated by state and federal regulatory agencies
Aluminum sulfate for coagulation

All chemicals added during treatment and distributions are certified (NSF 60) safe for potable water use.