At present two phases of works have been subject to archaeological monitoring. The first stage of work involved the excavation of a channel and sump to aid in the drainage of pond located to the southern side of the dam. Excavations works were undertaken by both mechanical excavator and by hand. All works were carried out under the supervision of an experienced archaeologist. The exposed ground was examined and recorded. The second phase of the work involved the dredging of silt from the pond to rear of the dam using a mechanical excavator. Again, all works were monitored by an experience archaeologist. Although uncertain at this time, it is likely a further phase of archaeological monitoring will be required should restoration works to the dam be undertaken. Oxford Archaeology was commissioned by the Chequers Estate to undertake a watching brief during dredging works to enable the inspection of a 19th century dam. No archaeological deposits of features were recorded and no artefactual evidence was recovered during the works.