Attenuation Basin Devon

During October 2020, Sean Carr Lining were delighted to be chosen to supply and install liners for safe effective rainwater removal and storage to create an attenuation basin. Accepted as the best practice method for stormwater storage by the developer of a new build housing estate in Weymouth, we were delighted to travel when asked to carry out this installation.

The project

The creation of an attenuation basin on any site allows safe and contained storage for excess rain and storm water as it allows for its release over time into the sewer system at a controlled rate. This removes much of the potential flooding risk caused by the inability for excess water to drain safely. In areas where rainwater or river breaches may otherwise cause sudden surges in water that needs somewhere to go, this is especially important or for areas where the natural drainage is insufficient or indeed removed through building work.

Legislation now requires that provision be included for effective removal and storage of excess water when planning for housing and commercial developments. Areas of land that does not offer scope for sufficient safe natural water drainage requires a manmade solution and the addition of attenuation or suds ponds is one of the best methods to provide for this. Sean Carr Lining team of highly trained and experienced technicians bring together many years of experience in the creation of suitable attenuation basins and this contract covered a 3000m2 area within this new Weymouth housing development site.

The work

Our highly experienced team of TWI/CSWIP certified technicians worked to the development company’s budget of £30k and we were onsite a little over 3 days to carry out the installation of both a geomembrane liner and geotextile protector to create this new attenuation basin. The addition of a geotextile protector offers further support to the liner and may be recommended for some applications.

We used a 1mm LLDPE linear low-density polyethylene geomembrane liner which received additional protection from a 300g/m2 geotextile fleece to create an attenuation basin that would support the rainwater harvesting and stormwater storage required by the new housing development.

All work completed to a high standard

Sean Carr Lining have many years of experience in the installation, maintenance and repair of geomembrane linings for many applications and industries. Our MD has over 30 years’ experience which carries a direct influence on our contracts and his invaluable knowledge complements the already vast knowledge of his experienced workforce. With a commitment to both quality of products supplied and installation teams with knowledge and experience gained over many years’ practical application and additional training we are proud that we continue to be worth of BGA, Construction Line and SMAS accreditation.

We undertake work that includes supply, installation, maintenance and repairs for any geomembrane liner applications including protective lake linings, suds ponds, and floating covers in addition to our attenuation basins. If you’re in needed of any such work on your site, please do not hesitate to get in touch; we’d be delighted to help you.

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