The Pond de la Monnerie, located on the communes of Cussac and Oradour-sur-Vayres (87) is a pond in the barrier of the Tardoire, a stream of 1st category (presence of fario trout and eel) belonging to the Cdc Ouest Limousin. This pond presents multiple problems: No legal existence of the work, obstacle to ecological continuity, siltation, pollution of sediments with heavy metals, colonisation by juice. The solution chosen for this work is the complete removal of the pond and the dam, through gradual discharges for 5 years and then crushing. The work is carried by the Symba Bandiat-Tardoire. At the end of this work, the Tardoire will return to a natural route and a better ecological status.