Bristol Avon WaterBlitz

The Bristol Avon WaterBlitz is an annual citizen science event that gains a snapshot of water quality in the rivers and streams across the catchment. The event is run in partnership with FreshWater Watch, a global programme developed by the environmental NGO, Earthwatch, who coordinate WaterBlitz events around the world.

BART continues to work with partners to improve our rivers for the benefit of people and wildlife, and one of the most significant obstacles to healthy rivers is water quality; in particular the high levels of contaminants impacting our freshwater ecosystems. The Bristol Avon WaterBlitz enables anyone with a passion for their local green and blue environment to contribute to its conservation.

Test your local river

Test for polluting nitrates and phosphates: chemicals from local agriculture, industry and household waste water which can impact local wildlife and overall river health.

Upload your results

This can be done via the Freshwater Watch website or app.

Please also provide a photo and observations of the surrounding environment.

Recruit your family & friends

We are aiming to test as much water in as many locations as possible to gather as complete and detailed information as possible.

Use #BAWaterBlitz to share your photos and videos with the BART community.

By working together across the catchment we can find areas of good water quality which need protecting and areas of bad water quality which need investigations and improvements. Your results may help us target these areas and influence future conservation projects. The WaterBlitz results also contribute to a global water quality database which assesses the quality of fresh water ecosystems all over the world.

Click here to sign up to the 2020 Bristol Avon WaterBlitz

You can request multiple testing kits to sample a number of sites and will receive guidance on how to take part safely during the August event. Take a look at the video below for step-by-step instructions on how to take and analyse your sample.

Video Credit: Robbiejgray (Instagram)

BART look forward to seeing your results and working together for rivers.

You can view the results as they are uploaded through the map below. This may help you choose a site that has not yet been sampled and enable you to compare your results to other areas sites.

For more information about this year’s WaterBlitz or supporting future events please contact