Also in the 18th century, a supply of drinking water was created by diverting water from the reservoir. In 1823, the last prince of Condé had eighteen fountains installed for the use of residents. In 1895 these were replaced with a supply from a water treatment plant in the neighboring village of Lamorlaye. This brought in water from Chantilly, Lamorlaye and Boran-sur-Oise then distributed the treated water through two water towers on the Mont de Pô in Gouvieux. This water supply has been managed by the private company Lyonnaise des eaux since 1928. In 1999 the average price of a cubic meter of water was 3.25 euros.