Bad smells were reported last month around the Queen's Hill development in Costessey, where Cofton is lead developer on a 2,000-home site, 500 of which have been completed and occupied so far.
The Environment Agency (EA) investigated and discovered a fault at a sewage pumping station linked to the development, which is the responsibility of Cofton, along with the sewer network.
An EA spokeswoman told the Eastern Daily Press: “The incidents happened on May 22 and a week before that. We received calls from residents and went to investigate it. The problem was with the pump station and that has now been corrected, so no more sewage will be discharged.
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“The incidents resulted in a very low environmental impact.”
Cofton, a civil engineering and development group specialising in providing serviced land to house builders, went into administration in March.
The administrator for the group, Deloitte, said the sewage pumping station was owned by Cofton, but responsibility would soon transfer to the house builders involved in the project, Barratt, Bloor, Bovis and Taylor Wimpey.
Anglian Water will take over management and maintenance of the pumping station and sewer network once the development is complete.
