As of April 27 2023, this project was not approved by the City of Sunrise and not moving forward as per source. The majority of the production capacity at the Springtree WTP is a Lime Softening process (24 of 25.5 MGD), and the Biscayne aquifer groundwater source for this process contains significant organic matter available to react with free chlorine during the disinfection process which forms disinfection by-products (DBPs) called tri-halomethanes (THMs) and halo-acedic acids (HAAs), known carcinogens and regulated by the U.S. EPA/FDEP as primary contaminants to be controlled under 80 mg/l and 60 mg/l, respectively. The City injects ammonia in the disinfection process (after filtration) forming chloramines in order to maintain compliance with the DBP Rule, although this process is difficult to regulate continuously due to fluctuations in flow and corresponding chemical demands and can provide a food source for nitrifying bacteria in the distribution system, further complicating the City capability to maintain regulatory compliance for adequate chlorine residual to the customers faucets. This project provides an ion exchange process to substantially remove the organic matter in the lime softening process, reducing DBP formation potential and reducing required amount of ammonia. There is a total of 12 MGD of Ion exchange being proposed under this project. Annual operating expenses are for electricity and salt usage, but there are savings from use of less sulfuric acid and sodium hydroxide. As of November 19, 2021, this project is currently in the FY 2022-2026 CIP . Funding for this project is allotted in the city's capital improvement plan for construction Fy 2022. A firm timeline has not been established; however, construction is scheduled for Fiscal Year 2022.
*Project information, including timeline and contacts, has been obtained through public sources. The content management team continues to pursue additional details; however, the contact(s) listed have yet to disclose or confirm any information. Inquiries should be directed to the contact(s) listed.
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