​​Seasonal water flow in the Darent
The following graphs show flow measurements made by the Environment Agency at three locations along the river from 2000 to the present day.   

Flow measurements at Otford (2011-2018)             Otford (2000-2012)    
Flow measurements at Lullingstone (2011-2018)   Lullingstone (2000-2012)   
Flow measurements at Hawley (2011-2018)            Hawley (2000-2012)   


The shaded green area marked "eaf" is the "Environmentally Acceptable Flow" as calculated by the EA.
The graph of "lta" is the Long Term Average of seasonal flows

Click the picture to read the Environment Agency report on abstraction in the Cray and Darent, published in 2007