However, if we take a step back and look at the source of water in the tank, we know that Vrishabhavathy River, which receives industrial and domestic effluents from the Peenya industrial area and downstream, discharges wastewater into Byramangala Tank. Despite receiving all kinds of effluents, the water body is categorised as fit for irrigation. This classification is based on a few parameters mentioned above that do not include toxic metals specific to the industries operating in the catchment.