yyyy-mm-dd format The area in hectares of the infestation. Note that this is a NUMBER(15,4) in the IAPP database but it is very unlikley that someone will report over one hectare of weed. instructions on how to find the site comments on the infestation at the site The UTM zone of the location of the site. The UTM easting of the locationof the site. The UTM northing of the location of the site.