Mayor Mauricio Macri said about 350, 000 people had been affected by the torrents of rain.
BBC: Argentina floods 'catastrophe' for La Plata, Buenos Aires
Mr Macri, a conservative in his second term as mayor, plans to run for president in 2015.
Macri, one of the wealthiest entrepreneurs in Argentina, benefited a great deal from the privatizations of the 1990's.
CENTERFORSECURITYPOLICY: The meaning of Kirchner's recent defeat
Macri is seen to represent values which the average Argentinean considered important for the functioning of a good government.
CENTERFORSECURITYPOLICY: The meaning of Kirchner's recent defeat
The vote for Macri represented an expression of tiredness, with the political class, long considered to be opportunistic and useless, among Argentineans.
CENTERFORSECURITYPOLICY: The meaning of Kirchner��s recent defeat
Tony Macri of the Council on Environmental Quality hosts an interactive listening session with Director of the Office of Public Engagement Jon Carson and Deputy Director Greg Nelson.
"We need to do the same with all the waterworks that are needed in the city, in greater Buenos Aires and in the province of Buenos Aires, " Macri said.
Mauricio Macri, a candidate defined as being center-right was elected in Buenos Aires and in the South, the winner was Fabiana Rios, a candidate who describes herself as center-left.
CENTERFORSECURITYPOLICY: The meaning of Kirchner's recent defeat
The governments of Fernandez and Buenos Aires Mayor Mauricio Macri sought to blame each other for the chaos, and the nation's divided media focused their coverage in ways that put one side or the other in the worst light.
Macri said Wednesday that the only solution is for the constantly warring governments to work together on expensive and long-term public works projects, creating huge underground drainage pipes to carry increasingly common torrential rains out to the Rio de la Plata.
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