- 2222.October.Wednesday

German Tunnel - Cleanup Day
German TunnelDoncaster Ln, Church Ln, Adwick le Street, Doncaster DN6 7AQJoin the Don Catchment Rivers Trust as we work to clean up the small stream at the German Tunel in Adwick close to Adwick Train Station. This day is a part of the All Hands on the Don Project!
When: Wednesday 22nd October 2025 10am-1pm
Where: We will be meeting at the junction where Church Land and Doncaster Lane meet. Adress: Doncaster Ln, Church Ln, Adwick le Street, Doncaster DN6 7AQ. Google Maps Pin: https://maps.app.goo.gl/a39yuLiyMm7nsvL99 What 3 words: ///mammoths.neck.haggle
What to bring: We provide all of the equipment on the day however please wear suitable clothing for outdoor work including sturdy shoes or boots and long trousers. We can provide wellingtons to borrow on the day but please let us know in advance by emailing [email protected] to ensure we have your size.
What to expect: We will be walking along the paths of the river, collecting litter and brining it back up to the road. We will have a break at 11:30 am for refreshments and biscuits, provided by DCRT.
Joining us? All are welcome however not all of our sites are completely accessible to all, please check the access advice below. Please let us know if you are coming as a new volunteer so we can plan accordingly by emailing [email protected] or contacting project volunteer officer Anthony Cox 07384543124.

Extended Riverfly Survey of the Went
WentbridgeCannot determine address at this location.Extended Riverfly Survey Day on the Went – Wednesday 22nd October, starting at 10.30am.
Come and try out the extended riverfly survey method and help investigate pollution issues on the Went.
Our 3rd survey of the Went A1 Viaduct Outfalls aims to collect further data to better understand how the pollution from the A1 viaduct impacts the river Went.We will be using the Extended Riverfly survey method looking for 33 groups of freshwater invertebrate
Come and try out the extended survey method and up your identification skills at the same time!What is the Extended method?
Extended Riverfly is intended for people who already have a few years’ experience in using RMI. They should already be familiar with the basic eight RMI target groups and have got know many of the other river invertebrate groups. Extended Riverfly is an expansion of the original RMI method that uses 33 invertebrate groups, including the basic eight RMI groups. It includes most of the major groups of macroinvertebrates you are likely to find in your samples and gives more nuanced idea of what is going on in the river than RMI; the river’s quality, possible stressors and its biodiversity. Rather than being a replacement for the monthly RMI sampling, Extended Riverfly is best used on a seasonal (especially spring and autumn) or annual basis to assess, for example, the performance of river restorations or the impacts of outfalls.This survey day will help you gain the skills to become an Extended Riverfly Surveyor (please note you will need to attend at least 2 training surveys to get signed off as an extended RMI monitor). For more information about the Extended Riverfly scheme: https://www.riverflies.org/extended-riverfly-intro-2024
Before the day – please watch the training powerpoint lecture ahead of the day and complete the short online quiz
Where: Meet outside St John’s Church to walk down to the survey site as a group (10 min walk)
Parking is best on the road near the Wentbridge House Hotel, rather than by the church which is on a very narrow track.
Access: Nearest toilets are at Wentbridge House Hotel.
You won’t be expected to go into the river, but please wrap up very warm for a day in the cold!Times: 10:30 – 15:3010:30-11:00: Teas and coffees, intro to the day and the extended scheme11:00- 13:00: Work together to identify first sample, record results
13:00-13:30: Break for lunch and refreshments
13:30 -15:30: Collect and identify second sample, record resultsPlease RSVP so we know to wait for you at the Church and in case of cancellationCancellation: If it’s heavily raining or the river levels have risen we will postpone the event. Please check your emails before the event as we will decide this by 9am on the day.
