The rivers of the Lea Valley are some of the most polluted in Britain. The Lea, Salmons Brook,
the Pymmes Brook, the Rivers Ching and Moselle and the Stonebridge
Brook are being damaged by sewage, household chemicals and oil on a
Surprisingly, the Lea nevertheless continues to teem with life, providing habitat, supporting biodiversity and sustaining the wider ecology of the Lea Valley.
Bream spawning in the Lea near Friend's Bridge has been an annual spectacle. It is not currently known if a new lock, the Prescott Lock, impounding the Lea, has damaged or even destroyed this ancient pattern forever.
Love the Lea is a campaign to clean the waters of the Lea, tackling the causes and effects of the pollution.