Pesticides have negative impact on the human health and environment. They were classified as possible human carcinogens. World health organization (WHO) has set a limit for Atrazine (ATZ) at concentration 2 ppb. This work aims to monitor Atrazine in drinking and related raw water of Kafr El Sheikh governorate. Different treatment techniques for Atrazine removal like Fenton reaction and granulated activated carbon (GAC). The identification and quantification of Atrazine was explored using LC/MS/MS spectrometer. The study recorded the presence of Atrazine during summer spring and autumn in drinking and related raw water due to using it as herbicides in corn crops and the highest influent of atrazine was 0.15µg/l. The study showed that water purification steps have no effect on Atrazine treatment. Some trials were carried out to degrades and adsorb Atrazine using Fenton reaction and GAC. 99 % of Atrazine was removed after one hour by using Fenton oxidation, 97% was removed after two hours by using (GAC).