06/07/15
– News for Upper Colne and tributaries
Pollution incident
Friday's thunderstorms led to a storm surge from the Blackbirds Farm sewage works above and at Watford.
13/10/14
– News for Upper Colne and tributaries
Environment Agency water situation report
The Environment Agency routinely measure and monitor the environment to assess the water situation across the Hertfordshire and North London Area. September was a dry month with little rainfall.