Plans for a new £30 million reservoir in a Derbyshire village have been unveiled.
Proposals are being drawn up by Severn Trent to replace an old underground site in Crich.
Residents were invited to a public exhibition at the Glebe Field Centre to discuss the scheme.
The existing reservoir, between Crich and Fritchley, is a large, covered concrete structure, approximately 190 metres by 110 metres in size, which was constructed between 1907 and 1910.
Severn Trent dams and reservoirs manager, Ian Hope, said: “The existing reservoir is more than 100-years-old. Unfortunately the roof structure is no longer safe but because the reservoir is in continual use we can’t do anything but build another along side it and then replace the old asset.”
Residents have raised concerns about traffic and noise during the construction phase but Mr Hope said the work was vital to maintain water supplies in the East Midlands.
He added: “There has been concern about access and vehicle movement.
“One or two people use the site for walking and wanted to know what impact vehicle movement during the construction period will have.
“We hope it will be fairly concise and we can minimise the impact but generally people accept the project has to go ahead and understand.”
The reservoir is Severn Trent’s largest holding 128 million litres of drinking water and has supplied up to 590,000 customers in the East Midlands for over 100 years.
Construction is set to take around fours years and will be carried out in two phases.
The new reservoir will be build alongside the existing site then the old reservoir will also be replaced.
Crich resident Lisa Horsley visited the public exhibition. She said: “Its outline proposals at this stage. The devil will be in the detail. There will be some concern about noise and traffic.
“I think water is something we all need and this has got to be done but it does need to be planned and controlled properly.”
The project is due to start in March 2013 and should be finished by December 2017.
The work will not interrupt with the water supply.
Severn Trent is set to submit a planning application to Amber Valley Borough Council soon.