Barnsley MP Dan Jarvis has visited the sewage works in Lundwood after complaints from nearby residents.
They had contacted him about 'unacceptable' levels of smell and flies coming from the Yorkshire Water treatment works.
Mr Jarvis visited the site on Monday with Coun Steve Green.
He said: "I recently met with a number of residents from neighbouring Lang Avenue to listen to their concerns and I was keen to discuss these matters direct with Yorkshire Water.
“We had a productive visit and I will now be holding a further meeting with the Yorkshire Water Chief Executive Richard Flint to discuss these matters."
Mr Jarvis said the pair would also discuss flooding.
