The Calder and Colne Rivers Trust is hosting a water testing event.
Volunteer monitors will meet at the trust’s information centre at Wellholme Park, Brighouse to test water quality at Clifton Beck from the headwaters in Shelf to the stream running through the park.
A trust spokesperson said: “Clifton Beck has complex water quality problems so the monitors will be testing for insect life abundance and the presence of nitrates and phosphates.
“Visitors to the information tent in the park, are invited to study how the bug life of Clifton Beck compares with a local stream where the water quality is good.”
Volunteers from MacDonald’s, Tesco, Calder Futures and Build a Better Brighouse will also be litter picking and balsam bashing along Hoyle House Beck, a tributary that runs from Whinney estate to Bradford Road.
There will also be activities for children provided by volunteers from Fields in Trust and Tesco, Rivers’ Trust.
They will able to take part in a river bug painting competition and a competition for the best idea to make reservoirs more wildlife and people friendly.
Children will also get free nature goodie bags.
The event will take place from 2pm on Saturday, July 25. For more information, contact area the coordinator Melvyn Wood on 07795 265120.