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
Germany
email: kraft@ib-kraft.de
Introduction
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can now be seen as outdated.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.
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of full document available to members (4pp, 30kb)
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