And the sea?
Chances are: probably not.
Owl easily finds sites in each constituency discharging on average more than once a week.
Search the interactive map here.
The key is simple, the bigger the brown blob, the worse it is. Hover mouse over online map to get details of how many discharges occurred in 2020 and for how many hours. “Avoid entering the water immediately downstream of these discharges and avoid the overflows, especially after it has been raining.”
Here are some examples averaging well over one discharge a week for each site!