RESIDENTS and councillors are outraged that work to fix a leaking Tewkesbury sewer will not begin before early 2014.
Large amounts of foul water have been spotted coming from a manhole cover in Northway Lane.
And last week's incident was the third in three months, following two leaks in September.
Resident Simon Hopkins said: "The public were not warned about the health risks of the last events.
"Shouldn't we have some public notification system?"
Severn Trent Water declined to comment on the health risk, but said it was working on solving the problem.
Spokeswoman Sarah-Jayne O'Kane said: "We have made some investment over the last few months to help with flooding in the Tewkesbury area.
"New storage tanks have been installed in the vicinity of Northway Lane to help deal with any increased flows and we are now carrying out a survey to see if there is anything else we can do in this area to support the sewage network.
"The investigation is still in the early stages of feasibility. We have had flow monitors in the ground to determine how the sewage system is performing and to identify what the limitations are so that we can determine the best solution.
"We expect to have a clear understanding of what a solution looks like during the spring or summer of 2013 and, subject to the size of the solution, we may be looking to start work in early 2014."
She apologised to anyone affected and said the company was doing everything it could to help the situation as quickly as possible.
Unimpressed resident Dave Witts, of Canterbury Leys, said: "This problem has been going on for about 15 years. Severn Trent have got to sort it out."
He claimed the company had highlighted the issue in a report written jointly with Tewkesbury Borough Council in the 1990s.
Town, borough and county councillor Vernon Smith said: "This position is disgraceful. I will be seeing if Tewkesbury MP Laurence Robertson and the county council's senior officers can do something about this totally unacceptable situation."