This is the technical report produced as part of a Feasibility Study, Environmental and Social Impact Assessment and Detailed Designs and Bidding Documents for the Zarqa Governorate Wastewater System Reinforcement and Expansion Project. The study is divided into two stages: First stage of the study includes preparatory studies that are required to define an investment programme; preliminary environmental and social assessment; preliminary designs; and the assessment of feasibility of the investment program, including economic analysis. Second stage is the preparation of an EIA, detailed design and contract documents; and is dependent upon the successful completion of Stage. The report was published in 2010.