Question to the Department for Transport:
To ask His Majesty's Government how untreated HS2 waste water entered a winterbourne stream in the Colne Valley; and what the chromium levels are in this run-off.
HS2 Ltd is not aware of any untreated HS2 waste water entering a winterbourne stream in the Colne Valley. HS2 Ltd closely monitors the River Colne catchment area.