Additional smaller pumping stations were built to add drainage water to the canal from areas along its length.

The construction of canals and tunnels channelled drainage water into the sea on the north coast.

The peat ditching increases the suspended materials in the drainage water.

The Aral Sea, for example, is seriously polluted by drainage water.

Proper application of reused drainage water during a crops growth cycle is optimal.

Both systems can facilitate the reuse of drainage water (e.g. for irrigation), but wells offer more flexibility.

The discharge of salty drainage water may pose "environmental problems" to downstream areas.

As mentioned below about 10 km3/year of drainage water in the Delta that originates from freshwater is being pumped to the sea.

Reuse of drainage water occurs in three different ways:

Furthermore, it aimed to increase the re-use of drainage water and the use of groundwater.