In its initial construction, Calalta Waterworks’ water treatment plant was designed as a necessity for the operation of Calaway Park, having provided safe drinking water to the local schools and community since 1982. In 2007, Alberta Environment requested all rural utilities be upgraded to a new standard, and Calalta Waterworks met the challenge. In 2015, Calalta Waterworks commissioned a state-of-the-art ultra membrane filtration plant and in 2020 negotiated a Franchise Agreement with Rocky View County.

Calalta’s water treatment system uses a combination of hollow fibre membrane, ultraviolet treatment and chlorination to ensure safe drinking water for the community. The system creates an equally safe and renewable operation as the treatment of backwashed water minimizes waste.
  1. Environmental Responsibility
    • Calalta’s water system utilizes a backwash recovery system, meaning the normal 20% of water that usually goes to waste is reduced to less than 4%.
    • The system is AUC rate regulated.
  2. UV Treatment
    • UV treatment is not required by the approval to operate but instead it was added to ensure the best quality and safety possible water.
    • UV is unlike chemical approaches to water disinfection, UV provides rapid, effective inactivation of microorganisms through a physical process. When bacteria, viruses and protozoa are exposed to the germicidal wavelengths of UV light, they are rendered incapable of reproducing and infecting.
    • UV light has demonstrated efficacy against pathogenic organisms, including those responsible for cholera, polio, typhoid, hepatitis and other bacterial, viral and parasitic diseases. In addition, UV light (either alone or in conjunction with hydrogen peroxide) can destroy chemical contaminants such as pesticides, industrial solvents, and pharmaceuticals through a process called UV-oxidation.
  3. Ultra-filtration
    • The filtration system in place allows for maximum quality with minimal chemical addition such as coagulants and flocculant aids found in conventional water treatment systems.
    • Today’s PVDF hollow fiber membrane module effectively removes suspended solids and microorganisms such as pathogens, when used for various types of water treatment.
    • The plant, pipe and well systems consist of:
      • Water intake from the Elbow river consisting of gravel filtration.
      • 5 subsurface intake wells ensuring water through drought or flood
      • 10” commercial pipeline that allows the possibility of future growth in the Springbank community.
      • 500,000-gallon potable reservoir ensuring service through unforeseeable shutdowns or emergencies.
  4. Safety and Security
    • With the combination of an above ground reservoir and a full system backup generator, water storage and distribution are optimized for safety and continuous supply.
    • The treatment plant is monitored 24/7 with remote terminal access and around the clock security measures. The system allows alarm conditions to be monitored and stabilized remotely.
  5. Team
    • Calalta has contracted a well-established and experienced third-party operator consisting of multiple employees at or above the highest certification level for operating the treatment and distribution systems.
    • The team has a combined 30+ years’ experience in the industry.
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