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10th International Rainwater Catchment Systems Conference
"Rainwater International 2001"
Mannheim, Germany - September 2001

Section 1: Rainwater Harvesting in an Urban Context

Paper 1.5

Ecological Storm Water Management of Large Settlements

Harald Kraft
Schmiljanstrasse 7
12161 Berlin


Until the mid-90s, all storm water was treated as contaminated surface runoff and diverted away in drainage systems. Drainage took precedence over infiltration. However, with the amendments in the state water laws, the water resource management objectives became reversed, and decentralised infiltration began to take precedence over drainage.

Storm water management in urban areas is basically subdivided into that for private lots and that for public property, including streets, public squares, parks, or other open areas. It is primarily carried out through retention, reuse, and infiltration. Drainage of storm water as wastewater can now be seen as outdated. Storm water management intended to relieve the sewer network, infiltration to enhance groundwater recharge, and on a limited scale, the storm water collection for reuse, are finding increasingly more application in modern development projects.

PDF of full document (4pp, 30kb)

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