Rustumihia is one of the biggest WWTP (Waste Water Treatment Plant) based in Baghdad the capital of Iraq. The effluent treated wastewater, were used for irrigation by the farmers nearby the Rustumihia WWTP. The growth of Iraqi population and limited development in the infrastructure to the treatment plants in Iraq like old Rustumihia project. There is a need to assess the treated effluents water that is used for irrigation. Wastewater considered as a key alternative water resource as it can be used in agriculture field to reimburse shortages in water need. In developed countries like Iraq, the irrigation by using wastewater has a long history. Continues lagging in WWTP maintenance and its infrastructure could cause many problems for the treated effluent that has its own effect on health and environment aspects. Therefore, by applying a strong management practices, for example advanced and appropriate treated and irrigated knowledge, can be used later to gain significant advantages in the same time minimizing health risks. This article discussed the treated wastewater used by farmers nearby Rustumihia treatment plant and focus on the challenges linked with wastewater irrigation.