Oxygen levels in the Lea are falling & the sewage pollution keeps coming.
Here's Thames Water's Combined Sewer Overflow in the Olympic Park disgorging again.
It doesn't look like infrastructure that is coping. Yet we're never told when it is overwhelmed.
Thank-you to @ThamesWater who unblocked a sewer that had surcharged sewage into the Chess in #Chesham near The Moor. They have tested the water & said that the parameters are normal. Please be mindful of what you put down the loo, sanitary items, wet wipes etc cause blockages.