Sewage Treatment Plants in Nalasopara, Vasai-Virar.

Where Nalasopara's sewer network has not arrived, a building's own STP carries the whole load, and many were built small or left without an operator. The common faults are simple: blowers switched off to save power, sludge never removed, treated water sent to the drain because the flushing line was never connected. We inspect the plant as it stands, repair what is failing, and hand the society a routine it can afford and follow.

Nalasopara is one of the most crowded parts of Vasai-Virar, spread on both sides of its railway station. The western side includes Sopara, an old settlement with a long history as a port, and its older villages, wadis and tanks. The eastern side grew much faster and more recently, largely as buildings of five to seven storeys raised on former paddy and low ground, many of them affordable homes for families who work in Mumbai. Roads, drainage and public open ground have lagged behind construction, and parts of the town now flood in heavy monsoon rain.