An advisory opinion was given and restoration measures were proposed, following an on-site autopsy on a slope with a height of 15.0 to 30.0 m, and a general slope of 30º ~ 50º, downstream of the property of the Dutch Government in the area “Doroufi” in Kranidi of the Municipality of Ermionida, Argolida Prefecture. In addition, Instrumental Monitoring measurements were carried out.