Casan, the water utility in the Brazilian state of Santa Catarina, has launched an 80mn-real (US$24.9mn) tender to expand its sewerage system in the Saco Grande, Monte Verde and João Paulo neighborhoods of state capital Florianópolis.
The works include building a sewage treatment plant with an average capacity of 85l/s, and installing 57km of collector pipelines, 11km of force mains, 21 pumping stations and 3,200 household connections, according to the tender documents.
The project also calls for connecting the eventual sewage treatment plant in Saco Grande to the existing sewerage network in the neighborhoods of Santo Antônio, Sambaqui and Cacupé.
Besides having at least 7.35mn reais in capital, bidders must also prove annual revenue of some 58.6mn reais, according to the procurement documents.
Bidders must also have experience installing at least 28.6km of collector pipeline at least 150mm wide, 9.65km of household connection pipelines at least 100mm wide, wastewater pumping facilities with a minimum flow rate of 314m3/h, and a sewage treatment plant able to handle at least 42l/s.
A technical visit must be scheduled beforehand and proposals are due November 11, the bid notice states.
The project is being supported by funding from the Japanese International Cooperation Agency (JICA).