Of the 14 water works in the last stretch of the 90’s, only six controls were subjected to environmental impact by the Under secretariat of Water Resources of the Federal Government. That's according to a report from the General Audit Office (AGN, for its acronym in Spanish), made in 2000, covering the period between 1998 and 1999.

Between water projects that were not controlled, the AGN highlighted the construction of an aqueduct on Lake Musters, to provide drinking water to Santa Cruz and Chubut, for $ 125.4 million; a hydroelectric plant in the town of Cuesta del Viento, San Juan, for $ 114.5 million; and the expansion and renovation of sewage in Tucumán, which cost $ 25.4 million. Moreover, the watchdog reported receiving no details on the criteria used in the selection of works that other environmental impact studies had made.
 
According to the AGN, none of the 14 water works made during this period were aimed at solving problems of the interjurisdictional basin, so that the Secretariat for Water Resources also failed in its function instituted as "the basin coordinator", i.e., as an instance of the Federal Government to articulate municipal and provincial interests in the problem of the different watersheds. Between 1998 and 1999, the magnitude of the failure was evidenced by the spate of Laguna La Picasa, which spans 5,500 square kilometers between Cordoba, Santa Fe, and Buenos Aires, and affected nearly 300,000 hectares of agriculture and livestock, generating losses of $ 24.3 million.