Those on board were mainly from Congresbury, Axbridge, Cheddar and Yatton.

BBC: Basle air crash: Memorial service marks 40th anniversary

Following similar complaints from residents in Axbridge in March, Bristol Water refused to release any information on the locations of the potential sites which it was investigating.

BBC: Concerns raised over new Bristol Water reservoir site

The company's website now states that sites in Axbridge, Cheddar, Clewer, Banwell and Wookey are being considered, but local residents say they want to know precisely where all these sites are.

BBC: Concerns raised over new Bristol Water reservoir site