Wargrave & Shiplake
River pollution monitoring for Wargrave & Shiplake.
Wargrave & Shiplake
River pollution monitoring for Wargrave & Shiplake.
Results from the HoTWater group in Henley provide a useful indication of conditions upstream, but they do not specifically reflect water quality at Wargrave and Shiplake.
Would you be interested in helping us to monitor river pollution levels around Wargrave and Shiplake?
We will be doing the following:
Weekly water sampling at one or more Thames locations at Wargrave and Shiplake, between May and October.
Occasional sampling on the River Loddon (upstream and downstream of Wargrave Sewage Treatment Works).
Publishing the results. You can currently see a small number of 2025 test results for Shiplake below. You can also see them in the HoTWater app from Apple App Store.
Testing for E. coli does cost money — but by using Roth R-Cards (& Surfers Against Sewage link), we can keep the cost down to around £11 per test.
John & Irene Crawford will cover the cost of the first 10 tests, but will be looking for donations of approximately £11 per test to continue and/or expand testing
To test once a week from May to October at one location, we would need a minimum of 26 tests. Additional sampling (e.g. near Wargrave Sewage Treatment Works, or around regatta time) would be great but would require additional tests.
We won't ask for donations until we have seen useful information from the first few tests, and confirmed sufficient interest.
If you would like to sponsor one or more tests, please contact us at:
A list of sponsors will be found at the bottom of this page.
Before reading the results below please make sure you have read the Terms and Conditions on our Home Page
(Also, during 2026, we plan to publish occasional photographs of the R-Cards used in our tests. By doing so, we hope to provide insight into how the results have been obtained and interpreted. These photographs will be shared on the SWIM in HoTWater blog )
Once we have seen the tests working, and we have asked for sponsorship, we will acknowledge the sponsors here:
J & I Crawford , Your name here, And yours