On Friday morning, the residents of Samayapuram near Bhavani river were shocked to witness oil-like effluents floating in the waters of Bhavani river. Despite repeated appeals to the Tamil Nadu Pollution Control Board (TNPCB) on the discharge of industrial effluents into the river, also a drinking water source to those in Mettuapalayam, the oil discharge had appalled the residents of the area who fall a prey to water -borne diseases often.