Bore deterioration economic and cost implications 7.1 Casing rehabilitation, replacement and decommission costs 7.2 Bore casing deterioration-economic implications 8. Bore casing condition assessment 6.1 Bore performance indicators 6.2 Water quality indicators 6.3 Review of bore condition assessment techniques 7. Groundwater quantity impacts 5.1 Potential mechanisms impacting bore yields 5.2 Depressurisation of connected aquifers 5.3 Indicators of bore yield impacts 6. Groundwater quality impacts 4.1 Potential aquifer contaminants 4.2 Potential aquifer cross-contamination mechanisms 4.3 Potential contaminant ingress 4.4 Potential impacts to infrastructure and the environment 4.5 Water quality indicators 5. Bore casing deterioration extent 3.1 Information compilation program 3.2 Existing case study reviews 3.2 Stakeholder consultation-current knowledge status 3.4 Bore condition assessment reports and databases 3.5 Historical bore construction methods and materials review 4.
Processes of bore casing deterioration 2.1 Fouling 2.2 Corrosion 2.3 Miscellaneous bore deterioration processes 3. This paper is presented by the National Water Commission for the purpose of informing discussion and does not necessarily reflect the views or opinions of the Commission.Įxecutive summary 1. Requests and enquiries concerning reproduction and rights should be addressed to the Commonwealth Copyright Administration, Attorney General‘s Department, Robert Garran Offices, National Circuit, Barton ACT 2600 or posted at Online/print: ISBN: 978-0-980 Groundwater bore deterioration: schemes to alleviate rehabilitation costs, October 2010 Authors: Anderson T, Cauchi T, Ibrahimi F, Llewellyn B, Mozina M and Ray E Published by the National Water Commission 95 Northbourne Avenue Canberra ACT 2600 Tel: 02 6102 6000 Email: Date of publication: October 2010 Cover design by: Angelink Front cover image courtesy of GHD An appropriate citation for this report is: GHD 2010, Groundwater bore deterioration: schemes to alleviate rehabilitation costs, Waterlines report, National Water Commission, Canberra Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from the Commonwealth. This work has been undertaken by GHD Pty Ltd on behalf of the National Water Commission.
WORKTIME WITH HIGH STRENGTH GROUT SERIES
This paper is part of a series of works commissioned by the National Water Commission on key water issues. Waterlines Report Series No 32, October 2010 Groundwater bore deterioration: schemes to alleviate rehabilitation costs
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