Wollongong City Council has disputed an environmental report into the plan to run coal trucks non-stop to Port Kembla, suggesting it doesn't go far enough in assessing the effect of the plan on the city's roads and residents. In a letter from the council to the NSW Department of Planning, obtained by the Mercury, the council argues the environmental assessment does "not adequately address ... environmental issues" relating to noise, traffic, roads, dust emissions and use of water.The assessment was written for the Port Kembla Coal Terminal as part of an application the department is assessing.The terminal wants to run coal trucks outside the 7am to 6pm curfew window.The move could double the amount of coal trucks carry through Wollongong streets.The letter will further boost the case of residents worried about the impact non-stop truck movements would have on their lives.Mt St Thomas business owner Paul Gauci set up the organisation Stop RTA to fight plans for an intersection near the truck's route, at Masters Rd and Drummond St, to be closed off.He says residents against the coal truck plan will be heartened by the letter, which "shows all is not right with this project".The council's general manager, David Farmer, is calling for the terminal to hire an acoustic consultant, to examine the overnight noise impact of the trucks on residents living along the F6, Mt Ousley Rd, Bellambi Lane and the Northern Distributor."During night times the noise due to truck movements in low gears descending/ascending with or without coal load on the F6 can be heard up to 100m away," he wrote.He has also requested models be created to show how the project will influence traffic over the next 10 years."There will come a time when intersections and carriageways reach capacity, council is concerned capacity may be accelerated as a result of this proposal."Council have concerns regarding the impacts on local streets ... also the impacts on residents due to increased deliveries during nights and weekends."Restrictions in place mean the terminal can receive about 5.2 million tonnes by road per annum. Under the proposal, the terminal would have be able to receive up to 10 million tonnes.Mr Farmer yesterday said his concerns were not so much about the 24-hour truck movements - because trucks could already enter the steelworks and other locations overnight - but the increase in tonnage.The council also has concerns about whether the amount of dust coming from coal stockpiles, and concentration of discharged water used to suppress dust - which ends up in the inner harbour, would exceed acceptable environmental levels.The environmental assessment, prepared by Cardno Forbes Rigby, argues coal trucks make up no more than 4.7 per cent of vehicles on Illawarra roads "and as such have very little impact on existing traffic operation".The assessment says the public along the route had been consulted by the coal terminal and there had been "no significant objection to the proposal".Acting general manager of the Port Kembla coal terminal, Peter Green, in December said the proposal would see trucks spread out "and we would see fewer trucks per hour during peak commuter periods.""Trucks now use different routes, roads have been significantly improved, with noise attenuation and jersey barriers, and truck fleets have been made both quieter and safer," he said.The coal terminal is preparing its response to the public and council's submissions.