The Trym now has berms!
Trout in the Trym volunteers help Bristol Avon Rivers Trust improve the habitat complexity and flow diversity of a section of the Trym.
Water Quality
On safari in North West Bristol
To investigate the cause of pollution in the Trym and Hazel Brook a group of
volunteers associated with Trout in the Trym has just completed Bristol’s first Outfall Safari.
Bristol rivers dashboard latest – good news and bad news!
Although data from water companies reveals far fewer sewage spills into the Trym last year and Combined Sewer Overflows were down 38%, other measures show all is not well.
Good news about Combined Sewer Overflows
Years of Trout in the Trym reaching out to Wessex Water, including walking them along the river to show what we’re doing, are bearing fruit at last.
Outfall safari
Peter and Mike check 15 outfalls along the Hazel Brook with mixed results.
Riverfly sampling update
This was the last riverfly sampling of 2025. See how the results compare with the yearly averages since 2021.
Excellent news – ten Combined Sewer Overflows to be upgraded
Company five year plans show that Wessex Water will upgrade ten Combined Sewer Overflows (CSOs) affecting the River Trym by the end of 2030.
Festival of Nature – River Restoration Walk
Peter Coleman-Smith reports on this guided walk which was interesting and enjoyable – despite the yellow weather warning!
Interesting river fly sample at Cribbs Causeway
Peter Coleman-Smith reports that he took a very interesting river fly sample at Cribbs Causeway yesterday morning.