India, May 11 -- A survey conducted by the Municipal Corporation of Manesar (MCM) has found that 79 high-rise residential societies in Manesar are illegally disposing untreated and treated wastewater through private tankers due to the absence of proper sewer connectivity, officials said, raising concerns over environmental pollution and public health risks.

The survey, conducted over the past three months, covered 79 of the 114 high-rise societies in the area to assess the functioning of sewage treatment plants (STPs) and compliance with sewage disposal norms.

According to the MCM report, all 79 surveyed societies have functional STPs, but wastewater is allegedly being disposed of through private tankers because STP pipelines are not co...