YORKSHIRE Water is appealing for information over the illegal discharge of waste into the public sewer network at Sinnington.

An unknown tanker is understood to be parking near Elmsall House Farm at about 10pm and discharging what appears to be septic tank waste or grease trap waste.

The illegal discharges are blocking the pumps at the sewage pumping station, causing the station to fail.

Fran Winter, for Yorkshire Water, said their contractors were having to to clean the pumping station out monthly.

“We are not sure who is making these illegal discharges, but there are only a select number of companies authorised to carry out work at this pumping station and the network and they would not be there at 10pm unless the pumps blocked at night and then there would be a Yorkshire Water vehicle there too,” he said.

Anyone who sees anything suspicious should make a note of the date, time, location and vehicle and phone 07790 617817 or email frances.winter@yorkshirewater.co.uk