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CRC PUBLICATIONS |
Evaluating Basin Leakage Rate, Disposal Capacity and Plume Development
Fred Leaney, Evan Christen
Publication Type:
Technical Report
This is a publication of the initial CRC for Catchment Hydrology
CRC Program:
Salinity (Previous CRC)
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Publication Keywords:
Irrigation
Disposal Facilities
Design Data
Drainage Water
Leakage
Infiltration
Saline Water
Plumes
Evaporation
Water Volume
Groundwater
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Abstract / Summary:
CSIRO Land and Water Technical Report 17/00
There are pressures to minimise salt leaving irrigated catchments of the Murray-Darling Basin to limit salinity increases in the River Murray. Part of this strategy is to manage drainage disposal water in the irrigation areas, using disposal basins. Unfortunately, there are no existing guidelines for siting, design and management of such disposal basins. The CRC for Catchment Hydrology and CSIRO Land and Water, with support from the Murray-Darling Basin Commission, have embarked on a project with the overall objective of producing such guidelines for the Riverine Plain of the Murray Basin.
This report is one of several being produced in this project to support the guidelines. It provides information on two important aspects that underpin the use of disposal basins: the disposal capacity of a basin, and what happens to leakage from the basin. It concludes that on-farm and ommunity basins in the Riverine Plain are a technically feasible method for the disposal of saline drainage, while ensuring that detrimental off-site effects are kept to a minimum. In order to maintain evaporative potential, water in the basin should not become too saline; a small amount of leakage (0.5
1.0 mm/d) is required for this to occur. These leakage rates are achievable for basins in the Riverine Plain.
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Centre Office:
CRC for Catchment Hydrology
Dept of Civil Engineering
Building 60
Monash University Vic 3800
Tel: +61 3 9905 2704
Fax: +61 3 9905 5033
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