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HomeMy Public PortalAboutLTC 018-2014 - Miami-Dade Water and Sewer - Notice of Chlorine TreatmentSAL HARBOUR F L O R I D A' S P A R A D I S E OFFICE OF THE VILLAGE MANAGER NO. 018-2014 LETTER TO COUNCIL To: Mayor Jean Rosenfield and Members of the City Council FROM: Jorge M. Gonzalez, Village Manager DATE: October 17, 2014 SUBJECT: Miami -Dade Water and Sewer Department — Notice of Chlorine Treatment The purpose of this Letter to Council (LTC) is to advise you that the Miami -Dade Water and Sewer Department (WASD) will be temporarily changing its method of chlorination at each of its regional water treatment facilities. This change in treatment will occur beginning November 3, 2014 and will continue through November 16, 2014. During this period consumers may experience an unusual chlorine taste and odor in the tap water. However, this will not cause any adverse health effects. This periodic change in treatment has taken place annually, and will serve to ensure adequate disinfection levels in the water. Attached is a copy of the letter from WASD and a chlorination fact sheet for your review and reference. If you have any questions, please feel free to contact me. JMG/DM M I A M I•DADE Water and Sewer PO Box 330316 • 3071 SW 38 Avenue Miami, Florida 33233-0316 T 305-665-7471 miamidade.gov October 3, 2014 Certified Mail 7012 3460 0003 6224 2486 Return Receipt Request Bal Harbour Village George Gonzalez, Village Manager Bal Harbour Village 655 — 96 St. Bal Harbour, FL 33154 Dear Mr. Gonzalez: The Miami -Dade Water and Sewer Department (WASD) will temporarily change its method of chlorination at each of its regional water treatment facilities. Specifically, free chlorine treatment will be used to provide a somewhat stronger disinfection and bleaching process than the combined chlorine treatment which is normally used at our regional water plants. This change in treatment will occur beginning November 3 , 2014 and will continue through November 16 , 2014. During this period, a consumer may experience unusual chlorine taste or odor in the tap water. However, these temporary conditions will not cause adverse health effects. This periodic change in chlorine treatment has taken place annually and will ensure adequate disinfection levels in the water. We have enclosed a chlorination fact sheet for your reference. We sincerely regret any inconvenience our customers may experience during this period, keeping in mind that this task is part of our ongoing effort to provide a safe, potable water supply for the citizens of Miami -Dade County. If you have any questions concerning this temporary change in treatment process, please call our office at (786)552-4713. Sincerely, James E. Turner, Chief Water Production and Maintenance Division Attachments FACTSHEET PRACTICE OF FREE CHLORINE TREATMENT 1983 - 2014 The free chlorine treatment period will begin November 3. 2014 and continues throunh November 16, 2014. 2. This process has been coordinated with -Miami -Dade County Health Department and Permitting, Environment and Regulatory Affairs. Free chlorine residual produces trihalomethanes (TTHM's). Combined residual chlorine, as normally applied greatly reduces the formation of TTHM'S. Studies concerning the carcinogenic effect of TTHM's in drinking water are based on the consumption of 2 liters (slightly over 1/2 gallon) of tap water per day for 70 years. Short periods of exposure to increased levels of TTHM's should be of little health significance. Consuming water with elevated TTHM levels during this two -week treatment period will not result in any adverse health effects. 5. There generally is no adverse effect to pets consuming water during these treatment periods; however consumers with tropical fish should contact their aquarium supplier or pet shop for specific guidance regarding water changes during this period. 6. Public Notices announcing the "Free Chlorine Treatment Period" will be published in local newspapers. All hospitals, kidney dialysis centers, and pet shops will be notified individually by certified mail. Wholesale customers will be similarly notified by letter.