During the 1971-73 investigation into the groundwater resources of the Mount Gambier area, 254 wells were sampled. Of these, 77 were pumped, allowing short-term (30 minutes) well tests to be performed. The results of the pump tests have been analysed,...

Six wells exploiting the lower (confined) portion of the Gambier Limestone aquifer currently provide groundwater for Millicent?s reticulated water supply. Four of the six wells could be substantially upgraded in well yield by equipping them with...

A new town water supply well, Naracoorte no. 10, encountered permeable confined aquifer sands at 160 m depth. Subsequent testing showed the well to have a yield of from 6000 to 7000 cubic m/day at a recommended pump intake depth of 85 m, with less...

A well survey was carried out in the Naracoorte Township and immediate environs in May and June 1976. 128 wells were located in the surveyed area, two thirds of these being in use, and of these, 11 were for drainage disposal. The remaining one third...

Hydrogeological investigations have intensified in the Mount Gambier area, with emphasis on town water supplies, pollution monitoring and the confined aquifer. The transition from the Underground Waters Preservation Act to the Water Resources Act has...

Flint occurs in 4 geological settings in the South-East - beds and dykes in the Gambier Limestone, bouldery conglomerate of the Bridgewater Formation, Holocene surface lag deposits and Holocene beach deposits. Pebbles from beach deposits between Cape...

Shelly fragments amongst poorly sorted, dark grey subrounded quartz sands below Murray Group limestones were examined. It was believed that these might equate to marginal marine or paralic facies of Late Eocene Buccleuch Group. The earliest Tertiary...

The Blue Lake is a valued water resource for the City of Mt Gambier and there is increasing community concern regarding its longer term sustainable use. The lake is groundwater fed and there is known contamination of the unconfined aquifer in the...

The main source of irrigation water in the intensely irrigated area of the Padthaway Proclaimed Wells Area is groundwater extracted from the underlying unconfined aquifer. Excess irrigation water, that is, water applied to the crops but not used,...

An increase in groundwater salinity in parts of the Padthaway area threatens the sustainability of established irrigation developments. A number of management options to mitigate the groundwater salinity increase are being considered by State...

Hydrochemical data from a total of 165 bores along the 40 kilometre wide strip of the South Australian - Victorian Border Designated Area were used to provide a spatial, and temporal, hydrochemical framework of the groundwaters from the three main...

The groundwater resources of a 20 km wide strip of land in each state along the SA-Vic border is jointly managed by both states. This Designated Area is divided into 22 management Zones and each state is required to limit groundwater withdrawals to...

The possibility of cavities under the site was investigated by vertical electrical soundings and pole-dipole traverses to yield 3-dimensional indications of resistivity variations. Correlation with bores and trenches indicated that variations were...

The Groundwater (Border Agreement) Act of 1985 legislated to provide a framework for the joint management of groundwater resources within a 40 km wide strip along the length of the South Australian and Victorian Border, which is referred to as the...

A test aerial spectrometric and subsidiary aeromagnetic survey of the onshore Otway Basin in SA was proposed in 1991 by APIRA, the Commonwealth Government's petroleum research authority. Initially it was aimed at utilising possible signature responses...

The Padthaway Formation and Bridgewater Formation aquifers provide a high quality groundwater resource in the Padthaway Proclaimed Wells Area (PWA). The resource supports an irrigated agriculture and horticulture industry. Irrigation is concentrated...

More than 400 samples (cuttings and core) from 26 petroleum wells in the South Australian part of the Gambier Basin were examined. Their lithology and foraminiferal fauna were recorded and their age and environment of deposition deduced where...

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A very small area located ~25 km south-east of Mount Gambier was taken up to try to identify in outcrop or in the near surface a glass grade dolomite resource which would be suitable to mine as a replacement for Unimin’s Tantanoola dolomite deposit....

Ongoing coal exploration conducted by Western Mining Corp. in the upper South-East region has targeted commercial-grade lignite occurrences within the Tertiary upper Dilwyn Formation, which may have formed in geological settings similar to that of the...