Consulting Services/Implementation Consultant for a Sanitation Program in Costa Rica

Brief description of the Contract:

Construction of sewage systems and wastewater treatment plants (WWTP) in four Costa-Rican Cities

• Golfito: Activated sludge wastewater treatment plant with nitrogen and chemical phosphorus elimination; population of approx. 7,200 inhabitants; amount of wastewater (incl. infiltration): 28 l/s; main collectors: approx. 9,600 m of sewage pipelines (NW 150-300 mm) plus 9 pumping stations
• Jacó: UASB reactor plus trickling filter; population of approx. 38,400 inhabitants; amount of wastewater (incl. infiltration): 120 l/s; main collectors: approx. 22,000 m of sewage pipelines (NW 150-600 mm) plus 7 pumping stations
• Palmares: UASB reactor plus trickling filter plus research complex (different simple treatment technologies); population of approx. 31,600 inhabitants; amount of wastewater (incl. infiltration): 71 l/s; main collectors: approx. 18,000 m of sewage pipelines (NW 150-375 mm) plus 6 pumping stations
• Quepos: Trickling filter wastewater treatment plant; population of approx. 28,500 inhabitants; amount of wastewater (incl. infiltration): 104 l/s; main collectors: approx. 13,900 sewage pipelines (NW 150-300 mm) plus 8 pumping stations

Consulting Services:

Implementation Consultant:

• Supporting AyA in the course of the bidding processes for the works (evaluation of submitted tenders, elaboration of evaluation reports etc.).
• Supervision of the construction works on the four different sites of the Programme.
• Elaboration of Operation & Maintenance (O&M) manuals for every individual project and of the corresponding O&M plans.
• Implementation of capacity building workshops for AyA related to the O&M of the systems. 
• Supporting AyA in the implementation of the Programme.

Further Consulting Services:

• Training course for AyA staff in design of wastewater treatment plants
• Development of a plan for connecting the users to the sewage systems to be implemented in the four cities of the Programme