BRE365 Soakaway Testing…

If you're involved in property development, construction, or drainage planning in the UK, you've likely come across BRE 365. This essential guidance document, published by the Building Research Establishment, lays out the standard method for designing soakaways — underground structures that allow rainwater to naturally drain into the soil. BRE 365 is central to implementing Sustainable Drainage Systems (SuDS), helping reduce surface water runoff, prevent flooding, and ease pressure on our aging sewer networks.

At the heart of BRE 365 is a straightforward but precise method: the soakaway infiltration test. By digging a trial pit and measuring how quickly water drains away, H2Ogeo can determine the infiltration rate of the soil. This data is then used to calculate the right size and design of the soakaway to ensure it can handle stormwater from roofs, roads, or other surfaces during heavy rain events. The guide includes formulas, example calculations, and best practices for accurate, compliant results.

To get a quote for your soakaway test in line with BRE365 in the south of England Contact Us Today.