Residents of Rossport in north Co Mayo are calling for an oral hearing into the revised planning application for a gas terminal at Bellanaboy by Enterprise Energy Ireland (EEI).
Monica and Gerald Muller say the fact that EEI has withdrawn its first planning application for the reception terminal - to be built as part of the Corrib gas project - "proves the validity" of their concerns and "the faultiness" of the company's original environmental impact statement.
The objectors also question several aspects of the revised application, including the amount of peat which will have to be removed on the site.
Analysing the revised Environmental Impact Statement, they warn of "catastrophic" consequences to the environment in the Erris area.
They are also concerned about the impact of stripping two million tonnes of peat on release of carbon-dioxide. They say this could cancel out any gains in switching from coal to gas-powered stations.
The effect of the peat removal in a Special Area of Conservation (SAC), Glenamoy bog, and the drainage into Carrowmore lake, Sruwaddacon Bay and Broadhaven Bay - all within designated SAC areas - are also a cause of concern to the objectors.
They describe it as "nothing short of an enormous irresponsibility; a disregard for SAC policy, local communities and their livelihoods".
They express concern about fire hazards and describe the Bellanaboy site as "the worst possible" for this kind of project.
Some 50 jobs have been promised at the terminal when gas comes ashore in late 2003, but the Mullers ask if Erris can afford to lose existing jobs in tourism and aquaculture.
Copies of the revised environmental impact submission have been sent to Dr Alex Rogers, the Southampton University marine biologist who expressed concern about the original application in a study commissioned by Mr Patrick O'Donnell, of Porturlin Shellfish Ltd.