Water officials have been urged not to build a new multi-million pound sewage treatment works in West Sussex.
Adur councillors said it was not fair waste from Brighton could be treated in their area.
Southern Water is considering Shoreham harbour as one of the options for its new plant, which is needed to meet European cleanliness directives.
At a meeting last night, council leader Neil Parkin said Adur should not have to deal with sewage from another area.
He said: "We are not being Nimbys. We've got works in our back yard for our waste. It is having another one for other people's waste that we find galling.
"It is Brighton's waste but the city council has not been particularly helpful by saying no to all the sites on its patch."
About 95 million litres of waste water is produced by businesses and residents between Hove and Peacehaven every day.
Adur's executive policy board agreed to object to establishing the sewage plant at Shoreham on the grounds it did not fulfil Government criteria, a major concern being the distance from Shoreham to Brighton's sewer network.
An 8km pipeline would have to be built under the A259, causing major traffic disruption.
The Government says sites for waste water works should be in the region where the sewage is produced.
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