Sub-surface drains have dried out a salty seep on farm land in the Katanning district. Capeweed and clovers are now growing on more than three-quarters of the land that was previously bare or carried only patchy sea barley grass.
The drains are still running water after five years. The salt content of the surface soil has been reduced markedly and the salt content of the effluent water is decreasing.
However, to complete the reclamation, further drains will be necessary. Both existing and any new drains will have to be flushed periodically because blockages of pipes cause problems.
Burdass, W J.
"Draining a saline seep,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 26
, Article 10.
Available at: http://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol26/iss4/10