http://www.thameswater.co.uk/
http://news.bbc.co.uk/1/hi/england/2393603.stm
http://news.bbc.co.uk/1/hi/england/london/3154134.stm
http://news.bbc.co.uk/1/hi/england/london/3111514.stm
http://news.bbc.co.uk/1/hi/england/london/3107756.stm