Complaints about smell from landfill site in Surrey
More than 120 complaints have been received by the Environment Agency about a sewage-like smell coming from a landfill waste site in Surrey.
Investigations by the agency found contaminated surface water was causing methane gas emissions at the site in Cormongers Lane in Redhill.
It produced a report and Biffa, which runs the site, said it was working with the agency on an action plan.
The improvements include installing 100 gas extraction wells.
The agency said it would be carrying out regular odour assessments and further site inspections.
It said: "We will continue to monitor progress with the remedial actions over the coming weeks."
In a statement, Biffa said: "The action plan includes a number of works that will extend and improve the existing gas extraction system and reduce the potential for landfill odours.
"There are a number of phases of works that are planned over the following few weeks."
The company said work was already in progress and would continue until all the actions agreed with the agency had been completed.