MIAMI-DADE WATER AND SEWER DEPARTMENT
.200 S'ilz jo Str:t,: Cor.l Gibles, Florid, 33146 Tel 305-669 3700 F,3x 669-3788
October 30, 1996
Attorneys at Law
Post Office Drawer 190
Tallahassee, Florida 32302-0190
Carton Fields Tallahassee
Jacob D Varn
Ref: Water Supply Development
Dear Mr. Varn:
With regards to water supply development problems being encountered by water utilities located
in the Lower East Coast, be advised that difficulty is being experienced in maximizing the use
of the Aquifer Storage and Recovery (ASR) technology during rainy season because of the
regulatory requirements for disinfection of the injectate.
There appears to be support for the ASR technology, but because of regulatory requirements we
would have to disinfect the water being stored. The requirement is that the injectate has to meet
potability standards. This is going to increase significantly the cost of the technology because of
the disinfection requirement. The brackish water for the Upper Floridan Aquifer (UFA), like the
water from the Biscayne Aquifer, has to be treated extensively through chemical preparation and
filtration prior to consumption.
Therefore, we need to work together with the Florida Department of Environment Protection
(FDEP) and the United States Environment Protection Agency, in obtaining some relief for
If you need additional information, please feel free to call me or Jorge S. Rodriguez, Deputy
Director at 669-7602.
Anthony J. lemente, P.E.