SuDS Tank Liner Testing
Stormwater Management Integrity Testing Services
At GeoShield, we specialise in the integrity testing and verification of Attenuation Tank liners, ensuring the stormwater will be held and released as engineered.
The UK’s current guidance document for a SuDS test is CIRIA C753 – The SuDS Manual.
CIRIA C753 – The SuDS Manual: Chapter 30 states:
“The verification should be carried out by a third party that is independent of the installer of the barrier.
The Environment Agency has provided clear advice with respect to the level of independence and verification in relation to work on landfill sites (EA,2010).
The Environment Agency recommends the conflicts of interest in verification should be avoided in the field of contaminated land verification (EA,2010).
The same philosophy should apply to verification of geomembranes in SuDS.”
Find out moreBook Your Attenuation Tank Liner Integrity Test Today
If you need an independent SuDS test, our team is ready to help.
Contact us today to schedule an inspection visit or request a quote.
Attenuation Tank Liner Testing in Action
Watch GeoShield perform comprehensive attenuation tank liner testing.
Stormwater Integrity Testing
If your stormwater attenuation system consists of a geomembrane liner and attenuation crates it is vital that the geomembrane liner is watertight. This ensures:
– The system performs as designed
– Compliance with CIRIA C753 – The SuDS test Manual
– Reduced risk of future liability
– No water leakage that could cause ground stabilisation issues
SuDS Test Detailed Reporting
Following integrity testing, we provide a clear, comprehensive report including:
– The Design
– Data sheets for any components
– Photographic evidence of the installation & testing
Our reports are easy to interpret and suitable for regulatory compliance or internal safety management.
Why Choose Us?
Experienced attenuation tank specialists
As members of CIRIA, we bring specialist knowledge of attenuation tanks, geomembranes, verification and integrity testing. Our team understands the importance of accurate testing, clear reporting and reliable guidance to help ensure drainage systems perform as intended.
Fast turnaround
We know how important your project is. That’s why we provide a responsive service for verification and reporting, supported by a rapid response team available within 24 hours to help keep your project moving.
Flexible service options
Our services are tailored to suit both residential and commercial sites. Whether you need support with a new installation, verification works or integrity testing, we provide practical options built around your project requirements.
Safety and clarity first
We take pride in delivering a thorough, professional service that puts safety, quality and clear communication at the centre of everything we do.
Commonly Asked Questions
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Independent integrity testing. There is no other way to be certain that your attenuation system is defect free prior to burying.
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The SuDS Manual, (CIRIA C753) the UK’s guidance document for SuDs and Attenuation systems states that third party integrity testing should be undertaken.
Chapter 30 of the SuDS Manual states:
Leakage can occur due to poor field or factory seaming, or damage caused during or after installation. It is important that all joints and seams are visually inspected and tested on site to ensure they meet the required standards.
The Environment Agency recommends that conflicts of interest in verification should be avoided. A contractor or membrane supplier certifying their own work or product is considered to be a conflict of interest and is not good practice.
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Water leaking from an attenuation tank could wash away soils and create heave or subsidence. Also, these systems have been designed to reduce the immediate flow of water into the drainage systems, any leakage would prevent the system working optimally.
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Primarily mechanical point stress testing and air lancing of all seams and joints, often a smoke test is carried out on fully sealed tanks to check for any leakage.
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The costs would vary from project to project but would be considerable, below are some examples of what a tank leak on a finished site could cause:
- Digging up roads or car parks
- Closing finished areas
- Claims and programme delays
- Reputational damage
“Lee was professional and approachable throughout the visits. He clearly explained the inspection process, highlighted key points to be aware of, and ensured everything was checked thoroughly.”
L.S
