After Amenemhat III’s thirtieth year the flood records returned to normal ‘good’ 17m flood levels.
Illahun Lunar Disappearance Text 10056 (D1) year 30 Reign of Amenemhat III
Nehktisonb the son of Meket, is mentioned on the Berlin Papyrus 10056 as being on duty from II Shemu 26 to III Shemu 25 in Year 30.