Hydrological conceptualisation of the Walyarta Mound springs

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dc.contributor.authorRutherford, JLen_AU
dc.contributor.authorCendón, DIen_AU
dc.contributor.authorSoerensen, Cen_AU
dc.contributor.authorBatty, Sen_AU
dc.contributor.authorHuntley, Ben_AU
dc.contributor.authorBourke, Len_AU
dc.contributor.authorPinder, Ken_AU
dc.contributor.authorQuinlan, Ken_AU
dc.contributor.authorEnglish, Ven_AU
dc.contributor.authorCoote, Men_AU
dc.date.accessioned2021-12-01T22:04:53Zen_AU
dc.date.available2021-12-01T22:04:53Zen_AU
dc.date.issued2018-07en_AU
dc.date.statistics2021-11-02en_AU
dc.descriptionThis work is copyright. You may download, display, print and reproduce this material in unaltered form (retaining this notice) for your personal, non-commercial use or use within your organisation. Apart from any use as permitted under the Copyright Act 1968, all other rights are reserved. Requests and enquiries concerning reproduction and rights should be addressed to the Department of Biodiversity, Conservation and Attractions.en_AU
dc.description.abstractMajor geological and hydrogeological investigations have taken place in the Canning Basin since the early 1900’s as the basin is prospective for hydrocarbons, base metals and groundwater. In the west Canning Basin (WCB), groundwater demand from both the unconfined Broome and confined Wallal aquifers has increased over the last decade, which has created a need to undertake rapid assessments of the sustainability of groundwater resources. The major conclusion of recent groundwater resource modelling in the western part of the Basin is that insufficient data have been collected to understand how the aquifers will respond to groundwater abstraction over time. The west Canning Basin also contains unique environmental assets that have high heritage and ecological values, including the Ramsar listed Mandora Marsh mound spring and wetland system, which are located in the Walyarta Conservation Park. The artesian mound spring system hosts unique phreatophytic vegetation communities and perennial and ephemeral water bodies inhabited by fish and invertebrates. The springs are not thought to represent a significant part of the west Canning Basin water balance, but they are broadly understood to be sustained by groundwater discharge along discrete geological faults. Predictions from past and recent groundwater assessments appear contradictory, one advising springs in the western basin margin are likely to be sensitive to groundwater level changes in the confined Wallal aquifer and another advising there will be limited Wallal aquifer drawdown in the Walyarta study area. This is of concern for two main reasons. The first reason being there is a high degree of uncertainty on how the Wallal aquifer will respond to groundwater abstraction and the second is, groundwater contributions from the Wallal aquifer to the Walyarta mound springs have not been assessed. These concerns prompted the Department of Biodiversity, Conservation and Attractions (DBCA) to undertake a study of the hydrological processes that support perennial groundwater discharge in the Walyarta mound springs and surface water systems. The approach concentrated on developing a three dimensional understanding of hydrological processes, with data mining (sourcing and interpretation) used to develop evidence for transferring the results to areas with less information. © Department of Biodiversity, Conservation and Attractions on behalf of the State of Western Australia 2018en_AU
dc.identifier.citationRutherford, J. L., Cendón, D. I., Soerensen, C., Batty, S., Huntley, B., Bourke L., Pinder, A., Quinlan, K., English, V., & Coote, M. (2018). Hydrological conceptualisation of the Walyarta Mound springs. Perth, Western Australia: Department of Biodiversity, Conservation and Attractions.en_AU
dc.identifier.pagination1-229en_AU
dc.identifier.placeofpublicationBentley, Western Australiaen_AU
dc.identifier.urihttps://library.dbca.wa.gov.au/static/FullTextFiles/072271.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12315en_AU
dc.language.isoenen_AU
dc.publisherDepartment of Biodiversity, Conservation and Attractionsen_AU
dc.subjectWestern Australiaen_AU
dc.subjectSpringsen_AU
dc.subjectSedimentary basinsen_AU
dc.subjectGeologic surveysen_AU
dc.subjectAquifersen_AU
dc.subjectGround wateren_AU
dc.subjectHydrocarbonsen_AU
dc.subjectSurface watersen_AU
dc.titleHydrological conceptualisation of the Walyarta Mound springsen_AU
dc.typeExternal Reporten_AU
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