Karakalpakstan sits in the Turan Depression between two deserts and the drying bed of the Aral Sea, with less than 100 mm of rain a year. Centralised sewerage barely exists: at the last count 29.3% of Nukus was connected, 12.2% of Takhiatash, and 3.7% of Xodjeyli — and what is collected receives minimal treatment, if any.

The World Bank's WASIS loan finances the reconstruction and expansion of the three cities' sewerage: some 246 km of gravity network, 24 pumping stations, 40 km of pressure mains, and new wastewater treatment plants for Nukus and for Takhiatash–Xodjeyli combined.

The design consultancy prepares everything a contractor needs to bid — detailed engineering design, safeguards documents, and FIDIC bidding documents — then follows the works as design supervisor under Uzbek law.

• Review the feasibility study and design assumptions before any drawing is produced
• Detailed and conceptual engineering design of networks, pumping stations and treatment plants, with field investigations, specifications, cost estimates and bills of quantities
• Environmental and social safeguards documents at sub-project level, to World Bank and national requirements
• Bidding documents: networks under FIDIC Red Book, treatment plants under FIDIC Yellow Book, with support through procurement
• State expertise approvals for the design documentation under Uzbek KMK/SHNK norms
• Design (author's) supervision during construction, with quarterly site visits and reporting to the PMU and the Bank in Russian and English

“Final conceptual design of the WWTPs as required for tendering under FIDIC Yellow Book.”