Install of a stormwater attenuation solution for a car park at an NHS Hospital

When constructing a new car park, a stormwater management system should be considered to prevent localised flooding. As one of the UK’s leading stormwater specialists, we are experts in this field. Here is a recent example of a stormwater attenuation system we supplied and installed for construction company, Henry Williams and Son (Roads) Ltd, when

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What’s the difference between a Vortex and Orifice Flow Control system?

Vortex Flow Control Valves and Orifice Flow Control Chambers are used to support the management of Sustainable Drainage Systems (SuDS) and the sewer infrastructure as part of a designed attenuation system. Both systems are highly effective but if you’re considering which one to use on your project, what’s the difference? Here’s a useful guide.   

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Why English rivers fail pollution test?

Looking after our waterways has never been so critical – it’s something we’re extremely passionate about here at Cotterill Civils. Only last week we were shocked to hear that all English rivers failed to meet the Environment Agency’s quality tests for pollution. The data revealed that just 14% of English rivers are of good ecological

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