Of the five sewage treatment plants (STPs) in the valley, the ‘state of art’ 16.4 mld Guheshwori STP is the only one that functions, though partially. The other STPS at Dhobighat, Sallaghari, Hanumante and Kadu, have been abandoned, their oxidation ponds now converted to playfields where children play football. In August, the Guheshwori plant was in disuse, because of mechanical breakdowns and frequent power cuts.