Villagers have called for action to be taken after raw sewage overflowed onto a street following heavy rain.
Peter Callaghan, of Great Street, Norton-sub-Hamdon, put up a warning sign on Little Street to inform pedestrians of sewage debris strewn on the road on Monday morning.
He said something had to be done to stop this happening again.
He said: "The fact is, for several years, we have known this is a weak spot. I haven't seen sewage like this for a long time."
Andy Jacobs, a former South Somerset District Councillor and Norton-sub-Hamdon resident, said work had been done recently by Somerset County Council's highways department to address flooding concerns, but there was still a problem.
He said: "Many people thought that would improve things. Clearly we still don't have a sewage system in Norton up to scratch."
However, Wessex Water said it was unaware of any long-standing problem in the area, and that it is "inevitable" drains will find it hard to cope after a long spell of heavy rain.
There were severe weather warnings in place in Somerset until 4pm on Monday after one month's worth of rain fell in one night.
Ian Drury, a spokesman for Wessex Water, said: "There was a small amount of sewage debris in Little Street after a sewer reached capacity following torrential rain on Monday.
"The area was washed down and disinfected the same day and as a precaution water samples of a local watercourse were taken which revealed it had not caused a pollution incident.
"When one month's rainfall falls in 24 hours it is inevitable that highway drains will struggle to cope and this means significant pressure is put on the sewerage network. We are sorry for any inconvenience caused."