 It is significant that in this on-going investigation (from 1739 to 1751), the central government of the colony took no action against the mineowners.Echávarri was also in charge of the construction of an aqueduct from Tlalnepantla to supply water to Villa de Guadalupe, site of the veneration of the Virgin of Guadalupe.Work began on this project on June 22, 1743, and it was completed on July 7, 1751.