sustainable drainage systems (suds)

Drainage Solutions

Sustainable Drainage Systems (SUDS)

 

The Environment Agency is actively encouraging the use of SUDS techniques to reduce site run-off. We advise on appropriate methods and technologies and design or audit the selected requirements. In accordance with Building Regulations Part H, surface water run-off from new developments should be disposed of by one of the following methods, listed in priority order:
 

Soakaways

  • Design of individual or combined systems
    Carry out / advise on carrying out Building Regulations Part H / BRE365 percolation tests – See our FREE Test Procedure Guidance.

  • Analysis of percolation test results.

  • Detailed design of individual or combined systems to BRE 365.

Discharge to Watercourses

  • Liaison with the Environment Agency to agree discharge rates.

  • Discharge Consent Applications.

  • Design of attenuation tanks/balancing ponds or tank sewers using Microdrainage.

  • Outfall design.

Discharge to Existing Sewerage Systems

  • Liaison with the sewerage operator.

  • Discharge Consent Applications.

  • Design of attenuation tanks / balancing ponds or tank sewers using Microdrainage.

  • Connection design.

  • Section 104 and 106 applications.

We also design other aspects of SUDS such as porous surfacing, rainwater recycling, swales, wetlands and reed beds.

The adoption of the proposed solutions is a matter for consideration at the design stage. We liaise with the Local Authority and the sewerage operator to agree the best solution.