HomeMy Public PortalAboutLTC 169-2018 Miami Dade County Water & Sewer Dept Annual Change in Water System Chlorine Treatment Beginning November 5, 2018NO. 169-2018
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October 11, 2018
Certified Mail
Return Receipt Request
Bal Harbour Village
Jorge 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 5, 2018 and will continue through
November 18, 2018. 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
FACT SHEET
PRACTICE OF FREE CHLORINE TREATMENT
1983 - 2018
1 The free chlorine treatment period will begin November 5, 2018 and
continues through November 18, 2018.
2. This process has been coordinated with Miami -Dade County Health
Department and Permitting, Environment and Regulatory Affairs.
3. Free chlorine residual produces trihalomethanes (TTHM's). Combined
residual chlorine, as normally applied greatly reduces the formation of
TTHM'S.
4. 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.