A Soakaway Investigation is a crucial service for anyone planning a development that requires effective surface water drainage, including homeowners, property developers, architects, and engineers. This investigation assesses how well the ground can absorb rainwater, helping to determine the suitability of a soakaway system for managing runoff. Our experts conduct industry-standard tests such as the BRE 365 Test, NHBC 5.3 Test, Percolation Test, Infiltration Test, and Groundwater Infiltration Test to measure the infiltration rate of the soil. These tests are essential for designing drainage solutions that comply with building regulations, prevent flooding, and avoid costly foundation or structural issues caused by poor drainage. Whether you’re constructing a new build, extending a property, or developing land, an Infiltration Rate Assessment ensures that your drainage design is both efficient and environmentally sustainable. By carrying out a Soakaway Test, we provide you with accurate data to support planning applications and regulatory approvals, ensuring your project meets all necessary drainage requirements.
On sites where soakaways might be feasible, the next step is to confirm what the ground conditions are and if soakaways are going to be practical and assess the size of soakaway that would be needed.
If the ground conditions are favourable, soakaway tests are carried out to measure the permeability of the strata. Quite literally, it involves filling up a trial pit with water and measuring the rate that it drains away.
Initial falling head permeability tests can also be undertaken in a borehole before committing to full scale soakaway tests if needs be.
Because the permeability can vary within a strata it’s always beneficial to do soakaway testing in the actual area where it is proposed to install soakaways. That way we get test data from the actual area where soakaways would be installed.
Wherever possible it’s good to do multiple soakaway tests at each location; three is always a magic number! But if permeability is low one test is usually enough to calculate a design permeability.
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After doing the soakaway investigation fieldwork, the data is used to calculate a design permeability for each soakaway test.
After doing the soakaway investigation fieldwork, the data is used to calculate a design permeability for each soakaway test.
After doing the soakaway investigation fieldwork, the data is used to calculate a design permeability for each soakaway test.
If you’re thinking about installing soakaways and want to know if they’re suitable, If you’ve been asked to do soakaway testing and investigation as part of drainage design, we’re always here to help guide you through the process and discuss what to do next.
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Abbeydale Geoscience operate across the entire Yorkshire area and the wider United Kingdom. Below is a list of some of the many areas locally that we provide and have provided our Soakaway Investigation services. We are proud of our heritage as a small West Yorkshire based business.
There are so many reasons why Abbeydale Geoscience are the perfect choice for Soakaway Investigation... but we'll just list a few:
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