Beginning of the end for balsam bashing?

Beginning of the end for balsam bashing?

The battle to remove Himalayan Balsam from riverbanks by hand has become a staple activity of river conservation management. This invasive non-native species returns annually – and spreads profusely.

However, a biological method of tackling it could eventually rid our rivers of it completely. Nicky Scott, our Volunteer and Engagement Officer, reports the initial results of a trial on the River Hogsmill.

Seven reasons to put the local river on your school’s curriculum

Jonathan Dean, our Education Development Officer, plays a central role in developing and delivering the Trust’s education strategy. He oversees our formal education work, extending across all our catchments. Here, he shares his thoughts on why rivers should be an important part of the curriculum for any school in the south east of England.

Hogsmill Community Newsletter

The Hogsmill Community Newsletter summarises the results of River Monitoring Initiative (RMI) sampling on the Hogsmill, together with other pollution monitoring and river-related activities and events.

The RMI is a national scheme for monitoring the health of rivers. Volunteers undertake regular surveys using a standard net sampling technique to count the number of certain “water quality sensitive” invertebrates.

An overall “score” is then calculated. A sharp fall or a drop below a “trigger” level could indicate pollution. This can then be reported to the Environment Agency (EA) to enable further investigation.

Action on sewage in rivers

Raw sewage is entering UK rivers on a horrifyingly regular basis, damaging our river ecosystems and putting public health at risk. In 2019 alone, untreated sewage poured into England’s rivers for an astounding 1.5 million hours, over the course of 200,000 separate incidents.

What’s really shocking is that, much of the time, this practice is completely legal.

Across the UK is a network of Combined Sewer Overflows (CSOs). These are essentially Victorian-era relief valves on the sewage treatment infrastructure. If sewage piping, or even a sewage treatment works, is becoming overwhelmed with sewage and rainwater, it is diverted and discharged into a nearby watercourse instead of backing up into homes.