This British Standard gives recommendations on the planning, design, construction and maintenance of surface water management systems for new developments and redevelopment sites in:
a)minimizing and/or mitigating flooding and other environmental risks arising
from:
1)site surface water run-off as a result of rain falling onto the development site;
2)run-off conveyed across or arising on the site from other sources.
NOTE 1 Run-off resulting from snow melt is not covered in this British Standard.
b)maximizing the societal and environmental benefits arising from the:
1)use of surface water run-off to protect and enhance local water resources and supplies;
2)contribution of surface water management systems in mitigating climate risks associated with urbanization;
3)integration of surface water management systems with urban design in delivering amenity and community value and in repairing, protecting and enhancing landscape and/or townscape character;
4)repair, protection and enhancement of biodiversity.