*** Covid-19 Update ***

Stonbury are immensely proud to be supporting our clients across the UK at such a crucial time and have been designated as 'key workers' by DEFRA and the UK water utility companies. Our teams are working tirelessly to help secure and maintain drinking water supplies, ensuring clean and safe drinking water is provided without interruption to critical services such as our hospitals as well as the general public. Now more than ever, the safety and wellbeing of our staff is of the utmost importance and we have adapted our safe working practices to ensure social distancing precautions are in place and that the correct hygiene practices are being followed. Safety is our priority, and we endeavour to make sure everyone at Stonbury goes home safe to their family.

// Invertebrate Surveys

Stonbury completed two invertebrate surveys on the River Avon to sample above and below discharge points, using a Yorkshire Pattern' airlift pump.

The survey was required to determine and record what species of benthic macroinvertebrates were present and in what numbers.

Benthic macroinvertebrates can be found in and around water bodies; they are small aquatic animals that are sensitive to physical and chemical changes within a watercourse. Their relative immobility - due to the lack of a backbone - means they cannot easily escape the impacts of thermal, chemical or organic pollution. 

Benthos, such as crayfish, snails and some insects are an important group of organisms to study, as they can be more directly tied to site-specific habitats, and are therefore more reflective of the health of that specific habitat location.

The information gathered during the survey gave the client a better understanding of the best processes to maintain the watercourse and highlighted how the discharge is impacting the habitat and the quality of water within the sample areas.

Download a PDF of this project