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1/21/13, "Massive Water Source Found Under Mexico City, Could Be 100-Year Supply," hispanicallyspeakingnews.com
"A team of geologists has discovered a large aquifer far beneath Mexico City
that could supply potable water to the capital for many decades and
serve as a reserve basin in times of drought, the municipal government
said Monday.
“It’s a deep aquifer of significant proportions, but they haven’t
been quantified yet and the next step is to carry out the necessary
studies to see its real potential for sustainable extraction,” Mexico
City’s water systems director, Ramon Aguirre, said in a radio interview.
Although news accounts have said the aquifer could supply the
capital’s water needs for a century, Aguirre did not confirm that
estimate.
“That would be great,” Aguirre said, adding that the water basin is
an important discovery because it could provide emergency supplies
during droughts.
“Even if there’s more than 100 years of extractable water ... that
doesn’t mean it’s enough to supply the city for more than 100 years.
That difference needs to be pointed out,” the official said.
He also noted that development of this new reserve will not affect
other Mexico City aquifers or lead to sinkholes because clay layers
separate one water basin from another.
Mexico City
has been gradually sinking for centuries because water is drawn from
underground aquifers faster than it can be replenished by rainfall and
other natural sources.
Aguirre said exploration work began 18 months ago and that up to
three more years of studies will be needed to determine the aquifer’s
yield capacity.
The project has an estimated price tag of as much as 500 million pesos ($39.3 million)." via Free Republic
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