Posted on 21st February 2020 by Joe Activists step up to protect water supplies from HS2 As there’s still no sign of that legally required assessment of the risk HS2 poses to water supplies and public health…… Related content: Judge Throws Out Case Against HS2 Protestors as Threat to London’s Water Supply is Accepted. HS2 Ordered to Publish Assessment of Risks to the Public Water Supply Action at Colne Valley more successful than ever hoped for Protesters try to stop the risk of HS2 contaminating London’s water supply Fighting Fund to Protect London’s Drinking Water From HS2 Reaches £5,000. News