چکیده (انگلیسی):

Sarabium archaeological site locates in Atfiyah center – Egypt, it belonged to 26th dynasty, the site suffers from the groundwater which affects badly on the deterioration of the building materials there, many microorganisms grow on lime stone carved coffins and ruins, they produce organic compounds which react with lime stone and turn to soluble salts, this is called biological weathering of the lime stone. This research will include the identification of the ground water's type and the microorganisms grown, their visible effect.