If fly-tipping occurs on private property, it's the landowner's responsibility to handle the removal. While Rossendale Council can investigate and may seek to prosecute offenders, they cannot directly remove waste from private land. If you need to contact the landowner, try to gather as much information as possible regarding the location and type of waste involved, and report the issue to the council. They can assist in the investigation.
You can report fly-tipping online through Rossendale's report form here: report fly-tipping.