LWVP volunteers tested 28 sites across the Lower Windrush, the results are summarised here:
The good news is that these results support the findings of more focused surveys coordinated by LWVP in 2016 and 2017 - lakes and ponds in the Lower Windrush Valley are an important clean water resource. Most are fed by groundwater flowing very slowly through gravel, which helps keep the water clean and free from nutrient pollution, and allow freshwater wildlife to flourish. The bad news is that, like in most areas of lowland Britain, the majority of streams and rivers suffer serious nutrient pollution.
Full results of the Thames Water Blitz, including those from the Lower Windrush Valley, can be viewed via an interactive map on the Freshwater Watch website: https://freshwaterwatch.thewaterhub.org/totally-thames-water-blitz
Case Studies from the Lower Windrush Valley surveys conducted in 2016 and 2017 can be found on our website here: https://www.oxfordshire.gov.uk/residents/environment-and-planning/countryside/lower-windrush-valley-project/what-we-do