Showing posts with label groundwater. Show all posts
Showing posts with label groundwater. Show all posts

Tuesday, November 16, 2010

Daly Basin Drilling, 2010

S. Tickell
Four investigation/monitoring bores were drilled at Florina Station to improve the coverage of regional water level monitoring in the Oolloo aquifer and to establish the nature of the newly recognised Florina geological formation that overlies the Oolloo Dolostone. The report includes drillers bore statements and geologists description of cuttings.

http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD10024

Thursday, September 16, 2010

Water in the Timor Sea Drainage Division report

A report to the Australian government for the CSIRO Northern Australia Sustainable Yeilds Project. August 2009
The Daly is one of six regions covered in this report. Water resources are assessed using available historical data and modelling under various climate scenarios. Knowledge gaps are identified.

http://www.csiro.au/science/NASY-Timor-Sea.html

Diffuse groundwater recharge modelling across northern Australia

Russell S. Crosbie, James L. McCallum and Glenn A. Harrington, December 2009
A report to the Australian government from the CSIRO Northern Australia Sustainable Yeilds Project.
This report investigates the impact of climate changes scenarios on groundwater recharge in a range of north Australian catchments.

http://www.csiro.au/partnerships/NASY-Science-Reports.html

Thursday, May 21, 2009

Groundwater in the Daly Basin

Tickell, S. 2009, Technical report no. 27/2008D
The Daly Basin is a geological basin that contains two major aquifers in limestone formations. Groundwater cannot move between the aquifers as they are separated by impervious siltstone formations. Significant recharge to the aquifers occurs in most years. The groundwater drains to the Daly River and its major tributaries, causing them to flow all year round. These permanent treams support distinctive ecosystems both within the river and along its banks. The aquifers store and transmit significant volumes of groundwater. Quantities suitable for irrigation can often be extracted from individual bores. There is a small but increasing agricultural industry. Water allocation plans are currently being developed to ensure that both surface waters and groundwaters are used sustainable. Maintenance of dry season river flows and of the ecosystems that they support are the main guiding principles behind water management in the basin.

Copy available on NRETA maps and in NRETAS and DPI Libary
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD08027

Thursday, February 19, 2009

Daly River resistivity survey: hydrogeophysical report 84/9

Water division
Dept of Transport and Works,
http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD84079

Daly River mission - stockyard boresite DLH-397

A. Hall
Northern Territory Administration, Water Resources Branch

http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD64029

A survey of springs along the Daly River between Beeboom and Daly River Crossings

S. J. Tickell and R. Farrow
NRETA, Natural Resources Division

A field inspection of the Daly River between Beeboom Crossing and Daly River Crossing in July 2005 did not locate any major springs associated with the Tindall Limestone. Spring flows from the limestone amounted to 170 L/sec. while downstream of the Daly Basin 470 L/sec. was added from various aquifers in Proterozic aged rocks. The river gains some 5 cumecs between the Beeboom Crossing and Mount Nancar gauging stations. The bulk of this is thought to originate from the Tindall Limestone, probably through unseen discharge into the river bed.
Thermal springs were located at the base of the Rock Candy Range. They are associated with faulting in Proterozoic sandstone and dolomite.

Stream Baseflows in the Daly Basin

S. J. Tickell, S. Cruikshank, E. Kerle and G. Willis
Department of Infrastructure Planning and Environment, Natural Resources Division

This survey took a snapshot of flows in mid-September at various sites in the catchment. The majority of the 34 cumecs measured at Mount Nancar is sourced from groundwater discharge from fractured and karstic aquifers within the Daly Basin. Discharge occurs at various sections along the Daly River and its tributaries where the streams cut into aquifers. The two main aquifers in the basin, the Tindall Limestone and the Oolloo Dolostone were discharging 15.8 and 17.8 cumecs respectively. The largest individual groundwater inflow is 7.7 cumecs, which discharges into the Daly River immediately upstream from Stray Creek.
Dry season stream gaugings were carried out in the Daly River catchment in order to determine the locations and quantities of groundwater inflow (and/or loss) to the river system. The main areas of interest were those stretches of the rivers that cross the Tindall and Oolloo aquifers of the Daly Basin.
The report provides information on the water quality, stream flows, water balance and salt balance within the Daly Basin.

http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRD02036

A survey of springs and rapids along the Katherine and Daly Rivers

S. J. Tickell
NRETAS, Natural Resources Division

A boat traverse was done of the Katherine and Daly Rivers from Galloping Jacks to Florina homestead. River bank springs were found to be numerous, especially between Limestone Creek and the Flora River. The springs have small discharges and are mostly sourced from the “massive unit” of the Oolloo Dolostone. The locations of approximately sixty rapids were recorded. They break the river into a series of steps and pools. Cretaceous sandstone is a very hard rock and is the formation that most rapids are formed on. The geology along the traverse has been reinterpreted slightly. Rocks along the Daly River, just north of the Flora are now regarded as Jinduckin Formation rather than Cretaceous as was previously thought.

Groundwater Resources of the Oolloo Dolostone

S. J. Tickell
Department of Infrastructure Planning and Environment, Natural Resources Division

This study aims to define the regional hydrogeology of the Oolloo Dolostone aquifer, including its extent, thickness, hydraulic properties, recharge, regional flow pattern and discharge. It completes a regional study of the aquifer following Jolly’s (1984) work, which covered the aquifer in the Douglas/Daly area. The results of the present work will be used as the base data for a groundwater model of the aquifer that will help quantify the water balance.

This report contains a range of infomation on environments in Daly River, the main topics were groundwater, geology, land use and geomorphology.

Water trading in the Katherine-Daly River region: issues and scenarios

A. Straton, S. Heckbert, A. Smajgl and J. Ward
Tropical Savannas Management CRC and CSIRO Social and Economic Integration,

A study looking at rules for water allocation processes in the Katherine-Daly region of the Northern Territory and how these may change in the future under the National Water Initiative (NWI).


http://www.cse.csiro.au/publications/2006/Katherine-DalyWaterTrading.pdf

Institutions for water trading and policy-making in the tropical savannas: a case study of the Katherine-Daly River region.

A. Straton, S. Heckbert, A. Smajgl and J. Ward
Tropical Savannas CRC, CSIRO, 2006

This project documents and analyses the institutions currently governing water allocation in the Katherine-Daly region and explores how this could change under the National Water Initiative’s objective to expand the trade in water. The report discusses the analysis of how Top End growers may respond in a water market and the modelling of some policy scenarios based on these responses.

http://www.terc.csiro.au/research.asp?Program=GOVERNANCE&Project=HBEHAV

An Indigenous Management Framework for the Daly River Catchment

M. Wohling
Daly River Aboriginal Reference Group and Northern Land Council

This report is an important document, which outlines the cultural values and the future development that the traditional owners would like to occur in their area. It is not just a report but a management framework for the Daly Region.

Water Quality in the Daly River - A multi-disciplinary management approach

D. Wilson, P. Cook, L. Hutley, S. J. Tickell and P. Jolly
Department of Natural Resources the Environment and the Arts

The aim of this project was to predict the effects of land clearing on groundwater recharge to the Oolloo aquifer and therefore to spring flows in the Daly River. The current work attempted to understand the physical processes related to recharge. This will provide further scientific basis for the development of land and water management practices and assist in preventing adverse impacts on the ecosystems sustained by spring flows into the Daly River.

This is a summary report, listing the main findings, limitations, and results of the National Action Plan for Salinity and Water Quality.

Effects of Land Use on Evapotranspiration and Recharge in the Daly River Catchment

D. Wilson, P. Cook, L. Hutley, S. J. Tickell and P. Jolly
Department of Natural Resources the Environment and the Arts

This project measures components of the water balance under native savannah vegetation and cleared land within the Daly catchment. In particular, the project provides preliminary estimates of evapotranspiration and groundwater recharge beneath these different land uses. A comparison of drainage rates under native and cleared conditions was made using two techniques: (i) a surface water balance, (ii) subsurface water chemistry.

The results of this study must be treated as preliminary, only. This report indicates potentially significant consequences of land clearing. Further work is required to develop and test hypotheses using several years’ of data. Additionally, further work should incorporate a dynamic model of surface and subsurface hydrology to better understand the workings of the system.

A Late Dry Season Survey of the Katherine and Daly Rivers

E. White
Department of Lands Planning and Environment, Natural Resources Division

The aim of the survey was to determine the location and amount of groundwater inflows to the Katherine and Daly Rivers from the Oolloo Limestone aquifer. Recommendations have been suggested for further investigation regarding the determination of where and how much the Oolloo Limestone water is discharged into the Katherine and Daly Rivers.

Dry season stream flows in the Daly/Katherine rivers, 2008

S. J. Tickell
NRETAS, Natural Resources Division

Dry season stream gaugings and water quality sampling were done on the Daly River and some major tributaries in July and September/October 2008. During the dry season the Katherine/Daly rivers are largely fed by groundwater discharge from aquifers in the Daly Basin. Late dry season stream flows were relatively high compared to historic measurements.

Shallow core drilling in the Douglas/Daly area

S. J. Tickell
Department of Natural Resources Environment and the Arts, Natural Resources Division

This report documents the drilling results from a project as part of the “Water Quality in the Daly River” funded jointly by the National Action Plan for Salinity & Water Quality programme and the NT Government. The aim of the drilling was to provide strata samples beneath a representative set of soil types on cleared and uncleared areas.
Measurements of soil water chloride, moisture content and matric potential were made on the samples by CSIRO Land & Water and these will be reported on in the project’s final report. The vertical profiles of these parameters will be used to estimate groundwater recharge.

This report has a number of photographs that display the different soil types. There are also graphic logs of the strata and information on the surface geology and landforms.

Carbon Dating of Groundwaters in the Oolloo Dolostone Aquifer

S. J. Tickell
Department of Infrastructure Planning and Environment, Natural Resources Division

As part of a study of the Oolloo Dolostone aquifer, twelve samples of groundwater were submitted for carbon dating and deuterium / oxygen-18 determinations. The dissolved inorganic carbon was precipitated as BaC03 prior to shipment to CSIRO Land and Water Radiocarbon Laboratory .The technical report prepared by CSIRO is included as Appendix 1. It includes the uncorrected 14C ages and corrected ages using three geochemical models. Ten of the samples were taken from bores and two were from springs along the Daly River. Three bores located near the junction of the King and Katherine Rivers were sampled in October 2001 but were only tested for deuterium / oxygen-18.

A Survey of Springs along the Daly River

S. J. Tickell
Department of Infrastructure Planning and Environment, Natural Resources Division

Spring flow into the Daly River totalled some 19 cumecs in September 2001, representing the largest groundwater input to the Daly/Katherine river system. Springs and seepages occur along the whole length of the traverse but major discharges and /or concentrations of springs were identified in some five discrete zones. Numerous springs are visible in the riverbanks but the majority of the inflow is via direct seepage into the riverbed. The main source of the springs is a fractured and cavernous aquifer in the upper part of the Oolloo Dolostone, a massive dolostone unit.

This report provides information on the geology along the Daly River, thereare also riverbed profiles and detailed tables containing information on chemicals, river temperature and pH levels.