Territory Stories

Waterloo Station : a report for the station manager

Details:

Title

Waterloo Station : a report for the station manager

Other title

R. Sanders and L.R. Rajaratnam; Water Resources Survey of the Western Victoria River District. Waterloo Station. A Guide for Water Resources Management.

Creator

Sanders, R.; National Landcare Program (Australia); Rajaratnam, L. R. (Lakshman); Northern Territory. Power and Water Authority. Water Resources Division

Collection

E-Publications; E-Books; PublicationNT; Report No ; 24/1994

Date

1995-02-26

Location

Waterloo Station

Description

Made available via the Publications (Legal Deposit) Act 2004 (NT).

Notes

Date:1995; On cover 'National Landcare Program'. Cover title: Water resources of Waterloo Station. Bibliography: leaf [10]

Language

English

Subject

Groundwater -- Northern Territory -- Waterloo Station; Water-supply -- Northern Territory -- Waterloo Station; Water resources development -- Northern Territory -- Waterloo Station

Series

Report No ; 24/1994

Format

[15] leaves : illustrations (some colour) and maps (1 colour) ; 30 cm.

File type

application/pdf.

Copyright owner

Check within Publication or with content Publisher.

Parent handle

https://hdl.handle.net/10070/228968

Citation address

https://hdl.handle.net/10070/673508

Page content

and sodium are outside limits for human consumption, and the high chloride suggests slow recharge to the aquifer. This is a relatively deep bore (183 m) and a deeper aquifer may be influencing the water quality. 3.2.2 Jasper Gorge Sandstone The Jasper Gorge Sandstone is capable of yielding reliable stock water supplies of between 0.5 and .5 L/s (Table 2) from selected sites. It forms the deeply dissected sandstone country in the headwaters of Horse Creek. The sandstone dips (generally less than 1 degree to the north west) under the Angalarri Siltstone which forms the plains and hilly country in the Horse Creek - West Baines area. Where it outcrops the prominent faulting and jointing of this unit suggests that good groundwater supplies should be available. However the sandstone supports poor spinifex pasture and no water supply development has been undertaken in this area. Hence observations on the groundwater potential of this unit are extrapolated from investigations undertaken on Amanbidji and Auvergne Stations. The Jasper Gorge Sandstone consists of white hard quartz sandstone, with some thin green siltstone bands, with a maximum thickness of 130 m at Auvergne. The depth to sandstone under the inland plains generally increases in a north westerly direction. The maximum depth drilled to the top of the sandstone is 325 m (RN 26895) at the Kildurk turnoff from the Victoria Highway. Because of this rock type's very low porosity the presence of aquifers is dependent on localised fracturing. The fractures tend to be large and extensive resulting in reasonably high yielding and reliable bores. Two Jasper Gorge Sandstone bores, RN 27085 and RN 28345, sustained pumping rates of in excess of 4 L/s for extended periods throughout the dry season, when used for road building purposes in the Auvergne Station area. It is important that bore sites are located to intercept fracture zones. A much higher success rate is possible where bores are located on lineaments interpreted from aerial photographs or satellite images in areas of outcropping Jasper Gorge Sandstone. However in most of the Horse Creek - West Baines area the Sandstone is overlain by Angalarri Siltstone. The Siltstone tends to mask fracture zones in the underlying sandstone and bore site selection is much more difficult in this area. Investigation drilling at Auvergne has indicated a 1 in 3 success rate for bores sited on lineaments visible on the inland plains surface (RN 28736 intercepted 6 L/s at 195 m, under 170 m of Angalarri Siltstone), Despite the fact that dry bores are much more common where the depth to the Jasper Gorge Sandstone is greater than 60 m, there is still potential for reliable stockwater supplies of 2 L/s or more which could supply 4 paddocks of 600 cattle when