In October 1999, the Government of Saint Lucia restructured the water sector by establishing a new entity – the Water and Sewerage Company, Incorporated (WASCO).  WASCO is incorporated under the Companies Act and regulated in accordance with the provisions of the Water and Sewerage Act (2004).

Today the Water and Sewerage Company Incorporated (WASCO) falls under the portfolio of the Ministry of Agriculture, Fisheries, Physical Planning, Natural Resources and Co-operatives.