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.

Links to newsletters 2023

Follow news of volunteering efforts on the Hogsmill monthly, thanks to Peter Short’s inciteful newsletter. Links below:

January 2023

February 2023

March 2023

April 2023

May 2023

June 2023

July 2023

August 2023

September 2023

Volunteers on the Bonesgate

Links to newsletters 2022

We are very grateful to Peter Short for putting together and editing this monthly newsletter. Links to recent newsletters are below:

December 2022

November 2022

October 2022

September 2022

August 2022

July 2022

June 2022

May 2022

April 2022

March 2022

February 2022

January 2022



Caddis larvae on the Hogsmill, photo by Peter Short
A cleanup on the Hogsmill © South East Rivers Trust